/export/starexec/sandbox2/solver/bin/starexec_run_rcdcRelativeAlsoLower /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files


--------------------------------------------------------------------------------


KILLED
proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml
# AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty


The Derivational Complexity (innermost) of the given DCpxTrs could be proven to be BOUNDS(1, INF).

(0) DCpxTrs
(1) DerivationalComplexityToRuntimeComplexityProof [BOTH BOUNDS(ID, ID), 0 ms]
(2) CpxRelTRS
(3) SInnermostTerminationProof [BOTH CONCRETE BOUNDS(ID, ID), 749 ms]
(4) CpxRelTRS
(5) RelTrsToDecreasingLoopProblemProof [LOWER BOUND(ID), 0 ms]
(6) TRS for Loop Detection
(7) RenamingProof [BOTH BOUNDS(ID, ID), 0 ms]
(8) CpxRelTRS
    (9) TypeInferenceProof [BOTH BOUNDS(ID, ID), 0 ms]
    (10) typed CpxTrs
    (11) OrderProof [LOWER BOUND(ID), 13 ms]
    (12) typed CpxTrs
(13) RelTrsToTrsProof [UPPER BOUND(ID), 0 ms]
(14) CpxTRS
(15) NonCtorToCtorProof [UPPER BOUND(ID), 0 ms]
(16) CpxRelTRS
    (17) RelTrsToWeightedTrsProof [BOTH BOUNDS(ID, ID), 0 ms]
    (18) CpxWeightedTrs
    (19) TypeInferenceProof [BOTH BOUNDS(ID, ID), 0 ms]
    (20) CpxTypedWeightedTrs
    (21) CompletionProof [UPPER BOUND(ID), 8 ms]
    (22) CpxTypedWeightedCompleteTrs
        (23) CpxTypedWeightedTrsToRntsProof [UPPER BOUND(ID), 37 ms]
        (24) CpxRNTS
    (25) CompletionProof [UPPER BOUND(ID), 7 ms]
    (26) CpxTypedWeightedCompleteTrs
(27) CpxTrsToCdtProof [UPPER BOUND(ID), 38 ms]
(28) CdtProblem
    (29) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (30) CdtProblem
    (31) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (32) CdtProblem
    (33) CdtGraphSplitRhsProof [BOTH BOUNDS(ID, ID), 0 ms]
    (34) CdtProblem
    (35) CdtLeafRemovalProof [ComplexityIfPolyImplication, 3 ms]
    (36) CdtProblem
    (37) CdtUsableRulesProof [BOTH BOUNDS(ID, ID), 163 ms]
    (38) CdtProblem
    (39) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 13 ms]
    (40) CdtProblem
    (41) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (42) CdtProblem
    (43) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 46 ms]
    (44) CdtProblem
    (45) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (46) CdtProblem
    (47) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 76 ms]
    (48) CdtProblem
    (49) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (50) CdtProblem
    (51) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 56 ms]
    (52) CdtProblem
    (53) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 4 ms]
    (54) CdtProblem
    (55) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 47 ms]
    (56) CdtProblem
    (57) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (58) CdtProblem
    (59) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 19 ms]
    (60) CdtProblem
    (61) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 2 ms]
    (62) CdtProblem
    (63) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 144 ms]
    (64) CdtProblem
    (65) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 8 ms]
    (66) CdtProblem
    (67) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 66 ms]
    (68) CdtProblem
    (69) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (70) CdtProblem
    (71) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 189 ms]
    (72) CdtProblem
    (73) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 34 ms]
    (74) CdtProblem
    (75) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 432 ms]
    (76) CdtProblem
    (77) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 52 ms]
    (78) CdtProblem
    (79) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 613 ms]
    (80) CdtProblem
    (81) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 52 ms]
    (82) CdtProblem
    (83) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 140 ms]
    (84) CdtProblem
    (85) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 36 ms]
    (86) CdtProblem
    (87) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 367 ms]
    (88) CdtProblem
    (89) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 60 ms]
    (90) CdtProblem
    (91) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 172 ms]
    (92) CdtProblem
    (93) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 49 ms]
    (94) CdtProblem
    (95) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 866 ms]
    (96) CdtProblem
    (97) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 87 ms]
    (98) CdtProblem
    (99) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 1015 ms]
    (100) CdtProblem
    (101) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 143 ms]
    (102) CdtProblem
    (103) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 607 ms]
    (104) CdtProblem
    (105) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 113 ms]
    (106) CdtProblem
    (107) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 124 ms]
    (108) CdtProblem
    (109) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 135 ms]
    (110) CdtProblem
    (111) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 143 ms]
    (112) CdtProblem
    (113) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 143 ms]
    (114) CdtProblem
    (115) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 152 ms]
    (116) CdtProblem
    (117) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 149 ms]
    (118) CdtProblem
    (119) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 177 ms]
    (120) CdtProblem
    (121) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 171 ms]
    (122) CdtProblem
    (123) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 155 ms]
    (124) CdtProblem
    (125) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 54 ms]
    (126) CdtProblem
    (127) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 258 ms]
    (128) CdtProblem


----------------------------------------

(0)
Obligation:
The Derivational Complexity (innermost) of the given DCpxTrs could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   active(U11(tt, V2)) -> mark(U12(isNat(V2)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, V2)) -> mark(U32(isNat(V2)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, N)) -> mark(N)
   active(U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
   active(U52(tt, M, N)) -> mark(s(plus(N, M)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
   active(U72(tt, M, N)) -> mark(plus(x(N, M), N))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(V1, V2))) -> mark(U11(isNat(V1), V2))
   active(isNat(s(V1))) -> mark(U21(isNat(V1)))
   active(isNat(x(V1, V2))) -> mark(U31(isNat(V1), V2))
   active(plus(N, 0)) -> mark(U41(isNat(N), N))
   active(plus(N, s(M))) -> mark(U51(isNat(M), M, N))
   active(x(N, 0)) -> mark(U61(isNat(N)))
   active(x(N, s(M))) -> mark(U71(isNat(M), M, N))
   mark(U11(X1, X2)) -> active(U11(mark(X1), X2))
   mark(tt) -> active(tt)
   mark(U12(X)) -> active(U12(mark(X)))
   mark(isNat(X)) -> active(isNat(X))
   mark(U21(X)) -> active(U21(mark(X)))
   mark(U31(X1, X2)) -> active(U31(mark(X1), X2))
   mark(U32(X)) -> active(U32(mark(X)))
   mark(U41(X1, X2)) -> active(U41(mark(X1), X2))
   mark(U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
   mark(U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
   mark(s(X)) -> active(s(mark(X)))
   mark(plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
   mark(U61(X)) -> active(U61(mark(X)))
   mark(0) -> active(0)
   mark(U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
   mark(U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
   mark(x(X1, X2)) -> active(x(mark(X1), mark(X2)))
   U11(mark(X1), X2) -> U11(X1, X2)
   U11(X1, mark(X2)) -> U11(X1, X2)
   U11(active(X1), X2) -> U11(X1, X2)
   U11(X1, active(X2)) -> U11(X1, X2)
   U12(mark(X)) -> U12(X)
   U12(active(X)) -> U12(X)
   isNat(mark(X)) -> isNat(X)
   isNat(active(X)) -> isNat(X)
   U21(mark(X)) -> U21(X)
   U21(active(X)) -> U21(X)
   U31(mark(X1), X2) -> U31(X1, X2)
   U31(X1, mark(X2)) -> U31(X1, X2)
   U31(active(X1), X2) -> U31(X1, X2)
   U31(X1, active(X2)) -> U31(X1, X2)
   U32(mark(X)) -> U32(X)
   U32(active(X)) -> U32(X)
   U41(mark(X1), X2) -> U41(X1, X2)
   U41(X1, mark(X2)) -> U41(X1, X2)
   U41(active(X1), X2) -> U41(X1, X2)
   U41(X1, active(X2)) -> U41(X1, X2)
   U51(mark(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, mark(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, mark(X3)) -> U51(X1, X2, X3)
   U51(active(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, active(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, active(X3)) -> U51(X1, X2, X3)
   U52(mark(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, mark(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, mark(X3)) -> U52(X1, X2, X3)
   U52(active(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, active(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, active(X3)) -> U52(X1, X2, X3)
   s(mark(X)) -> s(X)
   s(active(X)) -> s(X)
   plus(mark(X1), X2) -> plus(X1, X2)
   plus(X1, mark(X2)) -> plus(X1, X2)
   plus(active(X1), X2) -> plus(X1, X2)
   plus(X1, active(X2)) -> plus(X1, X2)
   U61(mark(X)) -> U61(X)
   U61(active(X)) -> U61(X)
   U71(mark(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, mark(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, mark(X3)) -> U71(X1, X2, X3)
   U71(active(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, active(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, active(X3)) -> U71(X1, X2, X3)
   U72(mark(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, mark(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, mark(X3)) -> U72(X1, X2, X3)
   U72(active(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, active(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, active(X3)) -> U72(X1, X2, X3)
   x(mark(X1), X2) -> x(X1, X2)
   x(X1, mark(X2)) -> x(X1, X2)
   x(active(X1), X2) -> x(X1, X2)
   x(X1, active(X2)) -> x(X1, X2)

S is empty.
Rewrite Strategy: INNERMOST
----------------------------------------

(1) DerivationalComplexityToRuntimeComplexityProof (BOTH BOUNDS(ID, ID))
The following rules have been added to S to convert the given derivational complexity problem to a runtime complexity problem:

   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(x_1)) -> active(encArg(x_1))
   encArg(cons_mark(x_1)) -> mark(encArg(x_1))
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
   encArg(cons_U12(x_1)) -> U12(encArg(x_1))
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
   encArg(cons_U21(x_1)) -> U21(encArg(x_1))
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
   encArg(cons_U32(x_1)) -> U32(encArg(x_1))
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_s(x_1)) -> s(encArg(x_1))
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
   encArg(cons_U61(x_1)) -> U61(encArg(x_1))
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
   encode_active(x_1) -> active(encArg(x_1))
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
   encode_tt -> tt
   encode_mark(x_1) -> mark(encArg(x_1))
   encode_U12(x_1) -> U12(encArg(x_1))
   encode_isNat(x_1) -> isNat(encArg(x_1))
   encode_U21(x_1) -> U21(encArg(x_1))
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
   encode_U32(x_1) -> U32(encArg(x_1))
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_s(x_1) -> s(encArg(x_1))
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
   encode_U61(x_1) -> U61(encArg(x_1))
   encode_0 -> 0
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))


----------------------------------------

(2)
Obligation:
The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   active(U11(tt, V2)) -> mark(U12(isNat(V2)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, V2)) -> mark(U32(isNat(V2)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, N)) -> mark(N)
   active(U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
   active(U52(tt, M, N)) -> mark(s(plus(N, M)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
   active(U72(tt, M, N)) -> mark(plus(x(N, M), N))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(V1, V2))) -> mark(U11(isNat(V1), V2))
   active(isNat(s(V1))) -> mark(U21(isNat(V1)))
   active(isNat(x(V1, V2))) -> mark(U31(isNat(V1), V2))
   active(plus(N, 0)) -> mark(U41(isNat(N), N))
   active(plus(N, s(M))) -> mark(U51(isNat(M), M, N))
   active(x(N, 0)) -> mark(U61(isNat(N)))
   active(x(N, s(M))) -> mark(U71(isNat(M), M, N))
   mark(U11(X1, X2)) -> active(U11(mark(X1), X2))
   mark(tt) -> active(tt)
   mark(U12(X)) -> active(U12(mark(X)))
   mark(isNat(X)) -> active(isNat(X))
   mark(U21(X)) -> active(U21(mark(X)))
   mark(U31(X1, X2)) -> active(U31(mark(X1), X2))
   mark(U32(X)) -> active(U32(mark(X)))
   mark(U41(X1, X2)) -> active(U41(mark(X1), X2))
   mark(U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
   mark(U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
   mark(s(X)) -> active(s(mark(X)))
   mark(plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
   mark(U61(X)) -> active(U61(mark(X)))
   mark(0) -> active(0)
   mark(U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
   mark(U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
   mark(x(X1, X2)) -> active(x(mark(X1), mark(X2)))
   U11(mark(X1), X2) -> U11(X1, X2)
   U11(X1, mark(X2)) -> U11(X1, X2)
   U11(active(X1), X2) -> U11(X1, X2)
   U11(X1, active(X2)) -> U11(X1, X2)
   U12(mark(X)) -> U12(X)
   U12(active(X)) -> U12(X)
   isNat(mark(X)) -> isNat(X)
   isNat(active(X)) -> isNat(X)
   U21(mark(X)) -> U21(X)
   U21(active(X)) -> U21(X)
   U31(mark(X1), X2) -> U31(X1, X2)
   U31(X1, mark(X2)) -> U31(X1, X2)
   U31(active(X1), X2) -> U31(X1, X2)
   U31(X1, active(X2)) -> U31(X1, X2)
   U32(mark(X)) -> U32(X)
   U32(active(X)) -> U32(X)
   U41(mark(X1), X2) -> U41(X1, X2)
   U41(X1, mark(X2)) -> U41(X1, X2)
   U41(active(X1), X2) -> U41(X1, X2)
   U41(X1, active(X2)) -> U41(X1, X2)
   U51(mark(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, mark(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, mark(X3)) -> U51(X1, X2, X3)
   U51(active(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, active(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, active(X3)) -> U51(X1, X2, X3)
   U52(mark(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, mark(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, mark(X3)) -> U52(X1, X2, X3)
   U52(active(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, active(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, active(X3)) -> U52(X1, X2, X3)
   s(mark(X)) -> s(X)
   s(active(X)) -> s(X)
   plus(mark(X1), X2) -> plus(X1, X2)
   plus(X1, mark(X2)) -> plus(X1, X2)
   plus(active(X1), X2) -> plus(X1, X2)
   plus(X1, active(X2)) -> plus(X1, X2)
   U61(mark(X)) -> U61(X)
   U61(active(X)) -> U61(X)
   U71(mark(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, mark(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, mark(X3)) -> U71(X1, X2, X3)
   U71(active(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, active(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, active(X3)) -> U71(X1, X2, X3)
   U72(mark(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, mark(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, mark(X3)) -> U72(X1, X2, X3)
   U72(active(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, active(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, active(X3)) -> U72(X1, X2, X3)
   x(mark(X1), X2) -> x(X1, X2)
   x(X1, mark(X2)) -> x(X1, X2)
   x(active(X1), X2) -> x(X1, X2)
   x(X1, active(X2)) -> x(X1, X2)

The (relative) TRS S consists of the following rules:

   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(x_1)) -> active(encArg(x_1))
   encArg(cons_mark(x_1)) -> mark(encArg(x_1))
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
   encArg(cons_U12(x_1)) -> U12(encArg(x_1))
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
   encArg(cons_U21(x_1)) -> U21(encArg(x_1))
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
   encArg(cons_U32(x_1)) -> U32(encArg(x_1))
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_s(x_1)) -> s(encArg(x_1))
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
   encArg(cons_U61(x_1)) -> U61(encArg(x_1))
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
   encode_active(x_1) -> active(encArg(x_1))
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
   encode_tt -> tt
   encode_mark(x_1) -> mark(encArg(x_1))
   encode_U12(x_1) -> U12(encArg(x_1))
   encode_isNat(x_1) -> isNat(encArg(x_1))
   encode_U21(x_1) -> U21(encArg(x_1))
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
   encode_U32(x_1) -> U32(encArg(x_1))
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_s(x_1) -> s(encArg(x_1))
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
   encode_U61(x_1) -> U61(encArg(x_1))
   encode_0 -> 0
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))

Rewrite Strategy: INNERMOST
----------------------------------------

(3) SInnermostTerminationProof (BOTH CONCRETE BOUNDS(ID, ID))
proved innermost termination of relative rules
----------------------------------------

(4)
Obligation:
The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   active(U11(tt, V2)) -> mark(U12(isNat(V2)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, V2)) -> mark(U32(isNat(V2)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, N)) -> mark(N)
   active(U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
   active(U52(tt, M, N)) -> mark(s(plus(N, M)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
   active(U72(tt, M, N)) -> mark(plus(x(N, M), N))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(V1, V2))) -> mark(U11(isNat(V1), V2))
   active(isNat(s(V1))) -> mark(U21(isNat(V1)))
   active(isNat(x(V1, V2))) -> mark(U31(isNat(V1), V2))
   active(plus(N, 0)) -> mark(U41(isNat(N), N))
   active(plus(N, s(M))) -> mark(U51(isNat(M), M, N))
   active(x(N, 0)) -> mark(U61(isNat(N)))
   active(x(N, s(M))) -> mark(U71(isNat(M), M, N))
   mark(U11(X1, X2)) -> active(U11(mark(X1), X2))
   mark(tt) -> active(tt)
   mark(U12(X)) -> active(U12(mark(X)))
   mark(isNat(X)) -> active(isNat(X))
   mark(U21(X)) -> active(U21(mark(X)))
   mark(U31(X1, X2)) -> active(U31(mark(X1), X2))
   mark(U32(X)) -> active(U32(mark(X)))
   mark(U41(X1, X2)) -> active(U41(mark(X1), X2))
   mark(U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
   mark(U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
   mark(s(X)) -> active(s(mark(X)))
   mark(plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
   mark(U61(X)) -> active(U61(mark(X)))
   mark(0) -> active(0)
   mark(U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
   mark(U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
   mark(x(X1, X2)) -> active(x(mark(X1), mark(X2)))
   U11(mark(X1), X2) -> U11(X1, X2)
   U11(X1, mark(X2)) -> U11(X1, X2)
   U11(active(X1), X2) -> U11(X1, X2)
   U11(X1, active(X2)) -> U11(X1, X2)
   U12(mark(X)) -> U12(X)
   U12(active(X)) -> U12(X)
   isNat(mark(X)) -> isNat(X)
   isNat(active(X)) -> isNat(X)
   U21(mark(X)) -> U21(X)
   U21(active(X)) -> U21(X)
   U31(mark(X1), X2) -> U31(X1, X2)
   U31(X1, mark(X2)) -> U31(X1, X2)
   U31(active(X1), X2) -> U31(X1, X2)
   U31(X1, active(X2)) -> U31(X1, X2)
   U32(mark(X)) -> U32(X)
   U32(active(X)) -> U32(X)
   U41(mark(X1), X2) -> U41(X1, X2)
   U41(X1, mark(X2)) -> U41(X1, X2)
   U41(active(X1), X2) -> U41(X1, X2)
   U41(X1, active(X2)) -> U41(X1, X2)
   U51(mark(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, mark(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, mark(X3)) -> U51(X1, X2, X3)
   U51(active(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, active(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, active(X3)) -> U51(X1, X2, X3)
   U52(mark(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, mark(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, mark(X3)) -> U52(X1, X2, X3)
   U52(active(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, active(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, active(X3)) -> U52(X1, X2, X3)
   s(mark(X)) -> s(X)
   s(active(X)) -> s(X)
   plus(mark(X1), X2) -> plus(X1, X2)
   plus(X1, mark(X2)) -> plus(X1, X2)
   plus(active(X1), X2) -> plus(X1, X2)
   plus(X1, active(X2)) -> plus(X1, X2)
   U61(mark(X)) -> U61(X)
   U61(active(X)) -> U61(X)
   U71(mark(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, mark(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, mark(X3)) -> U71(X1, X2, X3)
   U71(active(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, active(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, active(X3)) -> U71(X1, X2, X3)
   U72(mark(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, mark(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, mark(X3)) -> U72(X1, X2, X3)
   U72(active(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, active(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, active(X3)) -> U72(X1, X2, X3)
   x(mark(X1), X2) -> x(X1, X2)
   x(X1, mark(X2)) -> x(X1, X2)
   x(active(X1), X2) -> x(X1, X2)
   x(X1, active(X2)) -> x(X1, X2)

The (relative) TRS S consists of the following rules:

   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(x_1)) -> active(encArg(x_1))
   encArg(cons_mark(x_1)) -> mark(encArg(x_1))
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
   encArg(cons_U12(x_1)) -> U12(encArg(x_1))
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
   encArg(cons_U21(x_1)) -> U21(encArg(x_1))
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
   encArg(cons_U32(x_1)) -> U32(encArg(x_1))
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_s(x_1)) -> s(encArg(x_1))
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
   encArg(cons_U61(x_1)) -> U61(encArg(x_1))
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
   encode_active(x_1) -> active(encArg(x_1))
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
   encode_tt -> tt
   encode_mark(x_1) -> mark(encArg(x_1))
   encode_U12(x_1) -> U12(encArg(x_1))
   encode_isNat(x_1) -> isNat(encArg(x_1))
   encode_U21(x_1) -> U21(encArg(x_1))
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
   encode_U32(x_1) -> U32(encArg(x_1))
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_s(x_1) -> s(encArg(x_1))
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
   encode_U61(x_1) -> U61(encArg(x_1))
   encode_0 -> 0
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))

Rewrite Strategy: INNERMOST
----------------------------------------

(5) RelTrsToDecreasingLoopProblemProof (LOWER BOUND(ID))
Transformed a relative TRS into a decreasing-loop problem.
----------------------------------------

(6)
Obligation:
Analyzing the following TRS for decreasing loops:

The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   active(U11(tt, V2)) -> mark(U12(isNat(V2)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, V2)) -> mark(U32(isNat(V2)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, N)) -> mark(N)
   active(U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
   active(U52(tt, M, N)) -> mark(s(plus(N, M)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
   active(U72(tt, M, N)) -> mark(plus(x(N, M), N))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(V1, V2))) -> mark(U11(isNat(V1), V2))
   active(isNat(s(V1))) -> mark(U21(isNat(V1)))
   active(isNat(x(V1, V2))) -> mark(U31(isNat(V1), V2))
   active(plus(N, 0)) -> mark(U41(isNat(N), N))
   active(plus(N, s(M))) -> mark(U51(isNat(M), M, N))
   active(x(N, 0)) -> mark(U61(isNat(N)))
   active(x(N, s(M))) -> mark(U71(isNat(M), M, N))
   mark(U11(X1, X2)) -> active(U11(mark(X1), X2))
   mark(tt) -> active(tt)
   mark(U12(X)) -> active(U12(mark(X)))
   mark(isNat(X)) -> active(isNat(X))
   mark(U21(X)) -> active(U21(mark(X)))
   mark(U31(X1, X2)) -> active(U31(mark(X1), X2))
   mark(U32(X)) -> active(U32(mark(X)))
   mark(U41(X1, X2)) -> active(U41(mark(X1), X2))
   mark(U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
   mark(U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
   mark(s(X)) -> active(s(mark(X)))
   mark(plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
   mark(U61(X)) -> active(U61(mark(X)))
   mark(0) -> active(0)
   mark(U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
   mark(U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
   mark(x(X1, X2)) -> active(x(mark(X1), mark(X2)))
   U11(mark(X1), X2) -> U11(X1, X2)
   U11(X1, mark(X2)) -> U11(X1, X2)
   U11(active(X1), X2) -> U11(X1, X2)
   U11(X1, active(X2)) -> U11(X1, X2)
   U12(mark(X)) -> U12(X)
   U12(active(X)) -> U12(X)
   isNat(mark(X)) -> isNat(X)
   isNat(active(X)) -> isNat(X)
   U21(mark(X)) -> U21(X)
   U21(active(X)) -> U21(X)
   U31(mark(X1), X2) -> U31(X1, X2)
   U31(X1, mark(X2)) -> U31(X1, X2)
   U31(active(X1), X2) -> U31(X1, X2)
   U31(X1, active(X2)) -> U31(X1, X2)
   U32(mark(X)) -> U32(X)
   U32(active(X)) -> U32(X)
   U41(mark(X1), X2) -> U41(X1, X2)
   U41(X1, mark(X2)) -> U41(X1, X2)
   U41(active(X1), X2) -> U41(X1, X2)
   U41(X1, active(X2)) -> U41(X1, X2)
   U51(mark(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, mark(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, mark(X3)) -> U51(X1, X2, X3)
   U51(active(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, active(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, active(X3)) -> U51(X1, X2, X3)
   U52(mark(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, mark(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, mark(X3)) -> U52(X1, X2, X3)
   U52(active(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, active(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, active(X3)) -> U52(X1, X2, X3)
   s(mark(X)) -> s(X)
   s(active(X)) -> s(X)
   plus(mark(X1), X2) -> plus(X1, X2)
   plus(X1, mark(X2)) -> plus(X1, X2)
   plus(active(X1), X2) -> plus(X1, X2)
   plus(X1, active(X2)) -> plus(X1, X2)
   U61(mark(X)) -> U61(X)
   U61(active(X)) -> U61(X)
   U71(mark(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, mark(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, mark(X3)) -> U71(X1, X2, X3)
   U71(active(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, active(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, active(X3)) -> U71(X1, X2, X3)
   U72(mark(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, mark(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, mark(X3)) -> U72(X1, X2, X3)
   U72(active(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, active(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, active(X3)) -> U72(X1, X2, X3)
   x(mark(X1), X2) -> x(X1, X2)
   x(X1, mark(X2)) -> x(X1, X2)
   x(active(X1), X2) -> x(X1, X2)
   x(X1, active(X2)) -> x(X1, X2)

The (relative) TRS S consists of the following rules:

   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(x_1)) -> active(encArg(x_1))
   encArg(cons_mark(x_1)) -> mark(encArg(x_1))
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
   encArg(cons_U12(x_1)) -> U12(encArg(x_1))
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
   encArg(cons_U21(x_1)) -> U21(encArg(x_1))
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
   encArg(cons_U32(x_1)) -> U32(encArg(x_1))
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_s(x_1)) -> s(encArg(x_1))
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
   encArg(cons_U61(x_1)) -> U61(encArg(x_1))
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
   encode_active(x_1) -> active(encArg(x_1))
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
   encode_tt -> tt
   encode_mark(x_1) -> mark(encArg(x_1))
   encode_U12(x_1) -> U12(encArg(x_1))
   encode_isNat(x_1) -> isNat(encArg(x_1))
   encode_U21(x_1) -> U21(encArg(x_1))
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
   encode_U32(x_1) -> U32(encArg(x_1))
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_s(x_1) -> s(encArg(x_1))
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
   encode_U61(x_1) -> U61(encArg(x_1))
   encode_0 -> 0
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))

Rewrite Strategy: INNERMOST
----------------------------------------

(7) RenamingProof (BOTH BOUNDS(ID, ID))
Renamed function symbols to avoid clashes with predefined symbol.
----------------------------------------

(8)
Obligation:
The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   active(U11(tt, V2)) -> mark(U12(isNat(V2)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, V2)) -> mark(U32(isNat(V2)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, N)) -> mark(N)
   active(U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
   active(U52(tt, M, N)) -> mark(s(plus(N, M)))
   active(U61(tt)) -> mark(0')
   active(U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
   active(U72(tt, M, N)) -> mark(plus(x(N, M), N))
   active(isNat(0')) -> mark(tt)
   active(isNat(plus(V1, V2))) -> mark(U11(isNat(V1), V2))
   active(isNat(s(V1))) -> mark(U21(isNat(V1)))
   active(isNat(x(V1, V2))) -> mark(U31(isNat(V1), V2))
   active(plus(N, 0')) -> mark(U41(isNat(N), N))
   active(plus(N, s(M))) -> mark(U51(isNat(M), M, N))
   active(x(N, 0')) -> mark(U61(isNat(N)))
   active(x(N, s(M))) -> mark(U71(isNat(M), M, N))
   mark(U11(X1, X2)) -> active(U11(mark(X1), X2))
   mark(tt) -> active(tt)
   mark(U12(X)) -> active(U12(mark(X)))
   mark(isNat(X)) -> active(isNat(X))
   mark(U21(X)) -> active(U21(mark(X)))
   mark(U31(X1, X2)) -> active(U31(mark(X1), X2))
   mark(U32(X)) -> active(U32(mark(X)))
   mark(U41(X1, X2)) -> active(U41(mark(X1), X2))
   mark(U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
   mark(U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
   mark(s(X)) -> active(s(mark(X)))
   mark(plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
   mark(U61(X)) -> active(U61(mark(X)))
   mark(0') -> active(0')
   mark(U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
   mark(U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
   mark(x(X1, X2)) -> active(x(mark(X1), mark(X2)))
   U11(mark(X1), X2) -> U11(X1, X2)
   U11(X1, mark(X2)) -> U11(X1, X2)
   U11(active(X1), X2) -> U11(X1, X2)
   U11(X1, active(X2)) -> U11(X1, X2)
   U12(mark(X)) -> U12(X)
   U12(active(X)) -> U12(X)
   isNat(mark(X)) -> isNat(X)
   isNat(active(X)) -> isNat(X)
   U21(mark(X)) -> U21(X)
   U21(active(X)) -> U21(X)
   U31(mark(X1), X2) -> U31(X1, X2)
   U31(X1, mark(X2)) -> U31(X1, X2)
   U31(active(X1), X2) -> U31(X1, X2)
   U31(X1, active(X2)) -> U31(X1, X2)
   U32(mark(X)) -> U32(X)
   U32(active(X)) -> U32(X)
   U41(mark(X1), X2) -> U41(X1, X2)
   U41(X1, mark(X2)) -> U41(X1, X2)
   U41(active(X1), X2) -> U41(X1, X2)
   U41(X1, active(X2)) -> U41(X1, X2)
   U51(mark(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, mark(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, mark(X3)) -> U51(X1, X2, X3)
   U51(active(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, active(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, active(X3)) -> U51(X1, X2, X3)
   U52(mark(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, mark(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, mark(X3)) -> U52(X1, X2, X3)
   U52(active(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, active(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, active(X3)) -> U52(X1, X2, X3)
   s(mark(X)) -> s(X)
   s(active(X)) -> s(X)
   plus(mark(X1), X2) -> plus(X1, X2)
   plus(X1, mark(X2)) -> plus(X1, X2)
   plus(active(X1), X2) -> plus(X1, X2)
   plus(X1, active(X2)) -> plus(X1, X2)
   U61(mark(X)) -> U61(X)
   U61(active(X)) -> U61(X)
   U71(mark(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, mark(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, mark(X3)) -> U71(X1, X2, X3)
   U71(active(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, active(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, active(X3)) -> U71(X1, X2, X3)
   U72(mark(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, mark(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, mark(X3)) -> U72(X1, X2, X3)
   U72(active(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, active(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, active(X3)) -> U72(X1, X2, X3)
   x(mark(X1), X2) -> x(X1, X2)
   x(X1, mark(X2)) -> x(X1, X2)
   x(active(X1), X2) -> x(X1, X2)
   x(X1, active(X2)) -> x(X1, X2)

The (relative) TRS S consists of the following rules:

   encArg(tt) -> tt
   encArg(0') -> 0'
   encArg(cons_active(x_1)) -> active(encArg(x_1))
   encArg(cons_mark(x_1)) -> mark(encArg(x_1))
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
   encArg(cons_U12(x_1)) -> U12(encArg(x_1))
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
   encArg(cons_U21(x_1)) -> U21(encArg(x_1))
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
   encArg(cons_U32(x_1)) -> U32(encArg(x_1))
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_s(x_1)) -> s(encArg(x_1))
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
   encArg(cons_U61(x_1)) -> U61(encArg(x_1))
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
   encode_active(x_1) -> active(encArg(x_1))
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
   encode_tt -> tt
   encode_mark(x_1) -> mark(encArg(x_1))
   encode_U12(x_1) -> U12(encArg(x_1))
   encode_isNat(x_1) -> isNat(encArg(x_1))
   encode_U21(x_1) -> U21(encArg(x_1))
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
   encode_U32(x_1) -> U32(encArg(x_1))
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_s(x_1) -> s(encArg(x_1))
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
   encode_U61(x_1) -> U61(encArg(x_1))
   encode_0 -> 0'
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))

Rewrite Strategy: INNERMOST
----------------------------------------

(9) TypeInferenceProof (BOTH BOUNDS(ID, ID))
Infered types.
----------------------------------------

(10)
Obligation:
Innermost TRS:
Rules:
active(U11(tt, V2)) -> mark(U12(isNat(V2)))
active(U12(tt)) -> mark(tt)
active(U21(tt)) -> mark(tt)
active(U31(tt, V2)) -> mark(U32(isNat(V2)))
active(U32(tt)) -> mark(tt)
active(U41(tt, N)) -> mark(N)
active(U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
active(U52(tt, M, N)) -> mark(s(plus(N, M)))
active(U61(tt)) -> mark(0')
active(U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
active(U72(tt, M, N)) -> mark(plus(x(N, M), N))
active(isNat(0')) -> mark(tt)
active(isNat(plus(V1, V2))) -> mark(U11(isNat(V1), V2))
active(isNat(s(V1))) -> mark(U21(isNat(V1)))
active(isNat(x(V1, V2))) -> mark(U31(isNat(V1), V2))
active(plus(N, 0')) -> mark(U41(isNat(N), N))
active(plus(N, s(M))) -> mark(U51(isNat(M), M, N))
active(x(N, 0')) -> mark(U61(isNat(N)))
active(x(N, s(M))) -> mark(U71(isNat(M), M, N))
mark(U11(X1, X2)) -> active(U11(mark(X1), X2))
mark(tt) -> active(tt)
mark(U12(X)) -> active(U12(mark(X)))
mark(isNat(X)) -> active(isNat(X))
mark(U21(X)) -> active(U21(mark(X)))
mark(U31(X1, X2)) -> active(U31(mark(X1), X2))
mark(U32(X)) -> active(U32(mark(X)))
mark(U41(X1, X2)) -> active(U41(mark(X1), X2))
mark(U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
mark(U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
mark(s(X)) -> active(s(mark(X)))
mark(plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
mark(U61(X)) -> active(U61(mark(X)))
mark(0') -> active(0')
mark(U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
mark(U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
mark(x(X1, X2)) -> active(x(mark(X1), mark(X2)))
U11(mark(X1), X2) -> U11(X1, X2)
U11(X1, mark(X2)) -> U11(X1, X2)
U11(active(X1), X2) -> U11(X1, X2)
U11(X1, active(X2)) -> U11(X1, X2)
U12(mark(X)) -> U12(X)
U12(active(X)) -> U12(X)
isNat(mark(X)) -> isNat(X)
isNat(active(X)) -> isNat(X)
U21(mark(X)) -> U21(X)
U21(active(X)) -> U21(X)
U31(mark(X1), X2) -> U31(X1, X2)
U31(X1, mark(X2)) -> U31(X1, X2)
U31(active(X1), X2) -> U31(X1, X2)
U31(X1, active(X2)) -> U31(X1, X2)
U32(mark(X)) -> U32(X)
U32(active(X)) -> U32(X)
U41(mark(X1), X2) -> U41(X1, X2)
U41(X1, mark(X2)) -> U41(X1, X2)
U41(active(X1), X2) -> U41(X1, X2)
U41(X1, active(X2)) -> U41(X1, X2)
U51(mark(X1), X2, X3) -> U51(X1, X2, X3)
U51(X1, mark(X2), X3) -> U51(X1, X2, X3)
U51(X1, X2, mark(X3)) -> U51(X1, X2, X3)
U51(active(X1), X2, X3) -> U51(X1, X2, X3)
U51(X1, active(X2), X3) -> U51(X1, X2, X3)
U51(X1, X2, active(X3)) -> U51(X1, X2, X3)
U52(mark(X1), X2, X3) -> U52(X1, X2, X3)
U52(X1, mark(X2), X3) -> U52(X1, X2, X3)
U52(X1, X2, mark(X3)) -> U52(X1, X2, X3)
U52(active(X1), X2, X3) -> U52(X1, X2, X3)
U52(X1, active(X2), X3) -> U52(X1, X2, X3)
U52(X1, X2, active(X3)) -> U52(X1, X2, X3)
s(mark(X)) -> s(X)
s(active(X)) -> s(X)
plus(mark(X1), X2) -> plus(X1, X2)
plus(X1, mark(X2)) -> plus(X1, X2)
plus(active(X1), X2) -> plus(X1, X2)
plus(X1, active(X2)) -> plus(X1, X2)
U61(mark(X)) -> U61(X)
U61(active(X)) -> U61(X)
U71(mark(X1), X2, X3) -> U71(X1, X2, X3)
U71(X1, mark(X2), X3) -> U71(X1, X2, X3)
U71(X1, X2, mark(X3)) -> U71(X1, X2, X3)
U71(active(X1), X2, X3) -> U71(X1, X2, X3)
U71(X1, active(X2), X3) -> U71(X1, X2, X3)
U71(X1, X2, active(X3)) -> U71(X1, X2, X3)
U72(mark(X1), X2, X3) -> U72(X1, X2, X3)
U72(X1, mark(X2), X3) -> U72(X1, X2, X3)
U72(X1, X2, mark(X3)) -> U72(X1, X2, X3)
U72(active(X1), X2, X3) -> U72(X1, X2, X3)
U72(X1, active(X2), X3) -> U72(X1, X2, X3)
U72(X1, X2, active(X3)) -> U72(X1, X2, X3)
x(mark(X1), X2) -> x(X1, X2)
x(X1, mark(X2)) -> x(X1, X2)
x(active(X1), X2) -> x(X1, X2)
x(X1, active(X2)) -> x(X1, X2)
encArg(tt) -> tt
encArg(0') -> 0'
encArg(cons_active(x_1)) -> active(encArg(x_1))
encArg(cons_mark(x_1)) -> mark(encArg(x_1))
encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
encArg(cons_U12(x_1)) -> U12(encArg(x_1))
encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
encArg(cons_U21(x_1)) -> U21(encArg(x_1))
encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
encArg(cons_U32(x_1)) -> U32(encArg(x_1))
encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
encArg(cons_s(x_1)) -> s(encArg(x_1))
encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
encArg(cons_U61(x_1)) -> U61(encArg(x_1))
encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
encode_active(x_1) -> active(encArg(x_1))
encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
encode_tt -> tt
encode_mark(x_1) -> mark(encArg(x_1))
encode_U12(x_1) -> U12(encArg(x_1))
encode_isNat(x_1) -> isNat(encArg(x_1))
encode_U21(x_1) -> U21(encArg(x_1))
encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
encode_U32(x_1) -> U32(encArg(x_1))
encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
encode_s(x_1) -> s(encArg(x_1))
encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
encode_U61(x_1) -> U61(encArg(x_1))
encode_0 -> 0'
encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))

Types:
active :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U11 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
tt :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
mark :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U12 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
isNat :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U21 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U31 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U32 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U41 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U51 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U52 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
s :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
plus :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U61 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
0' :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U71 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U72 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
x :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encArg :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_active :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_mark :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U11 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U12 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_isNat :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U21 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U31 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U32 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U41 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U51 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U52 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_s :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_plus :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U61 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U71 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U72 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_x :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_active :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U11 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_tt :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_mark :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U12 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_isNat :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U21 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U31 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U32 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U41 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U51 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U52 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_s :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_plus :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U61 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_0 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U71 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U72 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_x :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
hole_tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x1_4 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
gen_tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x2_4 :: Nat -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x

----------------------------------------

(11) OrderProof (LOWER BOUND(ID))
Heuristically decided to analyse the following defined symbols:
active, mark, U12, isNat, U32, U52, s, plus, U72, x, U11, U21, U31, U41, U51, U61, U71, encArg

They will be analysed ascendingly in the following order:
active = mark
U12 < active
isNat < active
U32 < active
U52 < active
s < active
plus < active
U72 < active
x < active
U11 < active
U21 < active
U31 < active
U41 < active
U51 < active
U61 < active
U71 < active
active < encArg
U12 < mark
isNat < mark
U32 < mark
U52 < mark
s < mark
plus < mark
U72 < mark
x < mark
U11 < mark
U21 < mark
U31 < mark
U41 < mark
U51 < mark
U61 < mark
U71 < mark
mark < encArg
U12 < encArg
isNat < encArg
U32 < encArg
U52 < encArg
s < encArg
plus < encArg
U72 < encArg
x < encArg
U11 < encArg
U21 < encArg
U31 < encArg
U41 < encArg
U51 < encArg
U61 < encArg
U71 < encArg

----------------------------------------

(12)
Obligation:
Innermost TRS:
Rules:
active(U11(tt, V2)) -> mark(U12(isNat(V2)))
active(U12(tt)) -> mark(tt)
active(U21(tt)) -> mark(tt)
active(U31(tt, V2)) -> mark(U32(isNat(V2)))
active(U32(tt)) -> mark(tt)
active(U41(tt, N)) -> mark(N)
active(U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
active(U52(tt, M, N)) -> mark(s(plus(N, M)))
active(U61(tt)) -> mark(0')
active(U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
active(U72(tt, M, N)) -> mark(plus(x(N, M), N))
active(isNat(0')) -> mark(tt)
active(isNat(plus(V1, V2))) -> mark(U11(isNat(V1), V2))
active(isNat(s(V1))) -> mark(U21(isNat(V1)))
active(isNat(x(V1, V2))) -> mark(U31(isNat(V1), V2))
active(plus(N, 0')) -> mark(U41(isNat(N), N))
active(plus(N, s(M))) -> mark(U51(isNat(M), M, N))
active(x(N, 0')) -> mark(U61(isNat(N)))
active(x(N, s(M))) -> mark(U71(isNat(M), M, N))
mark(U11(X1, X2)) -> active(U11(mark(X1), X2))
mark(tt) -> active(tt)
mark(U12(X)) -> active(U12(mark(X)))
mark(isNat(X)) -> active(isNat(X))
mark(U21(X)) -> active(U21(mark(X)))
mark(U31(X1, X2)) -> active(U31(mark(X1), X2))
mark(U32(X)) -> active(U32(mark(X)))
mark(U41(X1, X2)) -> active(U41(mark(X1), X2))
mark(U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
mark(U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
mark(s(X)) -> active(s(mark(X)))
mark(plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
mark(U61(X)) -> active(U61(mark(X)))
mark(0') -> active(0')
mark(U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
mark(U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
mark(x(X1, X2)) -> active(x(mark(X1), mark(X2)))
U11(mark(X1), X2) -> U11(X1, X2)
U11(X1, mark(X2)) -> U11(X1, X2)
U11(active(X1), X2) -> U11(X1, X2)
U11(X1, active(X2)) -> U11(X1, X2)
U12(mark(X)) -> U12(X)
U12(active(X)) -> U12(X)
isNat(mark(X)) -> isNat(X)
isNat(active(X)) -> isNat(X)
U21(mark(X)) -> U21(X)
U21(active(X)) -> U21(X)
U31(mark(X1), X2) -> U31(X1, X2)
U31(X1, mark(X2)) -> U31(X1, X2)
U31(active(X1), X2) -> U31(X1, X2)
U31(X1, active(X2)) -> U31(X1, X2)
U32(mark(X)) -> U32(X)
U32(active(X)) -> U32(X)
U41(mark(X1), X2) -> U41(X1, X2)
U41(X1, mark(X2)) -> U41(X1, X2)
U41(active(X1), X2) -> U41(X1, X2)
U41(X1, active(X2)) -> U41(X1, X2)
U51(mark(X1), X2, X3) -> U51(X1, X2, X3)
U51(X1, mark(X2), X3) -> U51(X1, X2, X3)
U51(X1, X2, mark(X3)) -> U51(X1, X2, X3)
U51(active(X1), X2, X3) -> U51(X1, X2, X3)
U51(X1, active(X2), X3) -> U51(X1, X2, X3)
U51(X1, X2, active(X3)) -> U51(X1, X2, X3)
U52(mark(X1), X2, X3) -> U52(X1, X2, X3)
U52(X1, mark(X2), X3) -> U52(X1, X2, X3)
U52(X1, X2, mark(X3)) -> U52(X1, X2, X3)
U52(active(X1), X2, X3) -> U52(X1, X2, X3)
U52(X1, active(X2), X3) -> U52(X1, X2, X3)
U52(X1, X2, active(X3)) -> U52(X1, X2, X3)
s(mark(X)) -> s(X)
s(active(X)) -> s(X)
plus(mark(X1), X2) -> plus(X1, X2)
plus(X1, mark(X2)) -> plus(X1, X2)
plus(active(X1), X2) -> plus(X1, X2)
plus(X1, active(X2)) -> plus(X1, X2)
U61(mark(X)) -> U61(X)
U61(active(X)) -> U61(X)
U71(mark(X1), X2, X3) -> U71(X1, X2, X3)
U71(X1, mark(X2), X3) -> U71(X1, X2, X3)
U71(X1, X2, mark(X3)) -> U71(X1, X2, X3)
U71(active(X1), X2, X3) -> U71(X1, X2, X3)
U71(X1, active(X2), X3) -> U71(X1, X2, X3)
U71(X1, X2, active(X3)) -> U71(X1, X2, X3)
U72(mark(X1), X2, X3) -> U72(X1, X2, X3)
U72(X1, mark(X2), X3) -> U72(X1, X2, X3)
U72(X1, X2, mark(X3)) -> U72(X1, X2, X3)
U72(active(X1), X2, X3) -> U72(X1, X2, X3)
U72(X1, active(X2), X3) -> U72(X1, X2, X3)
U72(X1, X2, active(X3)) -> U72(X1, X2, X3)
x(mark(X1), X2) -> x(X1, X2)
x(X1, mark(X2)) -> x(X1, X2)
x(active(X1), X2) -> x(X1, X2)
x(X1, active(X2)) -> x(X1, X2)
encArg(tt) -> tt
encArg(0') -> 0'
encArg(cons_active(x_1)) -> active(encArg(x_1))
encArg(cons_mark(x_1)) -> mark(encArg(x_1))
encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
encArg(cons_U12(x_1)) -> U12(encArg(x_1))
encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
encArg(cons_U21(x_1)) -> U21(encArg(x_1))
encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
encArg(cons_U32(x_1)) -> U32(encArg(x_1))
encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
encArg(cons_s(x_1)) -> s(encArg(x_1))
encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
encArg(cons_U61(x_1)) -> U61(encArg(x_1))
encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
encode_active(x_1) -> active(encArg(x_1))
encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
encode_tt -> tt
encode_mark(x_1) -> mark(encArg(x_1))
encode_U12(x_1) -> U12(encArg(x_1))
encode_isNat(x_1) -> isNat(encArg(x_1))
encode_U21(x_1) -> U21(encArg(x_1))
encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
encode_U32(x_1) -> U32(encArg(x_1))
encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
encode_s(x_1) -> s(encArg(x_1))
encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
encode_U61(x_1) -> U61(encArg(x_1))
encode_0 -> 0'
encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))

Types:
active :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U11 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
tt :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
mark :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U12 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
isNat :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U21 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U31 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U32 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U41 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U51 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U52 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
s :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
plus :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U61 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
0' :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U71 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U72 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
x :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encArg :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_active :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_mark :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U11 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U12 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_isNat :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U21 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U31 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U32 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U41 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U51 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U52 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_s :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_plus :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U61 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U71 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U72 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_x :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_active :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U11 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_tt :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_mark :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U12 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_isNat :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U21 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U31 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U32 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U41 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U51 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U52 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_s :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_plus :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U61 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_0 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U71 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U72 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_x :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
hole_tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x1_4 :: tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
gen_tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x2_4 :: Nat -> tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x


Generator Equations:
gen_tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x2_4(0) <=> tt
gen_tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x2_4(+(x, 1)) <=> cons_active(gen_tt:0':cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x2_4(x))


The following defined symbols remain to be analysed:
U12, active, mark, isNat, U32, U52, s, plus, U72, x, U11, U21, U31, U41, U51, U61, U71, encArg

They will be analysed ascendingly in the following order:
active = mark
U12 < active
isNat < active
U32 < active
U52 < active
s < active
plus < active
U72 < active
x < active
U11 < active
U21 < active
U31 < active
U41 < active
U51 < active
U61 < active
U71 < active
active < encArg
U12 < mark
isNat < mark
U32 < mark
U52 < mark
s < mark
plus < mark
U72 < mark
x < mark
U11 < mark
U21 < mark
U31 < mark
U41 < mark
U51 < mark
U61 < mark
U71 < mark
mark < encArg
U12 < encArg
isNat < encArg
U32 < encArg
U52 < encArg
s < encArg
plus < encArg
U72 < encArg
x < encArg
U11 < encArg
U21 < encArg
U31 < encArg
U41 < encArg
U51 < encArg
U61 < encArg
U71 < encArg

----------------------------------------

(13) RelTrsToTrsProof (UPPER BOUND(ID))
transformed relative TRS to TRS
----------------------------------------

(14)
Obligation:
The Runtime Complexity (innermost) of the given CpxTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   active(U11(tt, V2)) -> mark(U12(isNat(V2)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, V2)) -> mark(U32(isNat(V2)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, N)) -> mark(N)
   active(U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
   active(U52(tt, M, N)) -> mark(s(plus(N, M)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
   active(U72(tt, M, N)) -> mark(plus(x(N, M), N))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(V1, V2))) -> mark(U11(isNat(V1), V2))
   active(isNat(s(V1))) -> mark(U21(isNat(V1)))
   active(isNat(x(V1, V2))) -> mark(U31(isNat(V1), V2))
   active(plus(N, 0)) -> mark(U41(isNat(N), N))
   active(plus(N, s(M))) -> mark(U51(isNat(M), M, N))
   active(x(N, 0)) -> mark(U61(isNat(N)))
   active(x(N, s(M))) -> mark(U71(isNat(M), M, N))
   mark(U11(X1, X2)) -> active(U11(mark(X1), X2))
   mark(tt) -> active(tt)
   mark(U12(X)) -> active(U12(mark(X)))
   mark(isNat(X)) -> active(isNat(X))
   mark(U21(X)) -> active(U21(mark(X)))
   mark(U31(X1, X2)) -> active(U31(mark(X1), X2))
   mark(U32(X)) -> active(U32(mark(X)))
   mark(U41(X1, X2)) -> active(U41(mark(X1), X2))
   mark(U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
   mark(U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
   mark(s(X)) -> active(s(mark(X)))
   mark(plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
   mark(U61(X)) -> active(U61(mark(X)))
   mark(0) -> active(0)
   mark(U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
   mark(U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
   mark(x(X1, X2)) -> active(x(mark(X1), mark(X2)))
   U11(mark(X1), X2) -> U11(X1, X2)
   U11(X1, mark(X2)) -> U11(X1, X2)
   U11(active(X1), X2) -> U11(X1, X2)
   U11(X1, active(X2)) -> U11(X1, X2)
   U12(mark(X)) -> U12(X)
   U12(active(X)) -> U12(X)
   isNat(mark(X)) -> isNat(X)
   isNat(active(X)) -> isNat(X)
   U21(mark(X)) -> U21(X)
   U21(active(X)) -> U21(X)
   U31(mark(X1), X2) -> U31(X1, X2)
   U31(X1, mark(X2)) -> U31(X1, X2)
   U31(active(X1), X2) -> U31(X1, X2)
   U31(X1, active(X2)) -> U31(X1, X2)
   U32(mark(X)) -> U32(X)
   U32(active(X)) -> U32(X)
   U41(mark(X1), X2) -> U41(X1, X2)
   U41(X1, mark(X2)) -> U41(X1, X2)
   U41(active(X1), X2) -> U41(X1, X2)
   U41(X1, active(X2)) -> U41(X1, X2)
   U51(mark(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, mark(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, mark(X3)) -> U51(X1, X2, X3)
   U51(active(X1), X2, X3) -> U51(X1, X2, X3)
   U51(X1, active(X2), X3) -> U51(X1, X2, X3)
   U51(X1, X2, active(X3)) -> U51(X1, X2, X3)
   U52(mark(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, mark(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, mark(X3)) -> U52(X1, X2, X3)
   U52(active(X1), X2, X3) -> U52(X1, X2, X3)
   U52(X1, active(X2), X3) -> U52(X1, X2, X3)
   U52(X1, X2, active(X3)) -> U52(X1, X2, X3)
   s(mark(X)) -> s(X)
   s(active(X)) -> s(X)
   plus(mark(X1), X2) -> plus(X1, X2)
   plus(X1, mark(X2)) -> plus(X1, X2)
   plus(active(X1), X2) -> plus(X1, X2)
   plus(X1, active(X2)) -> plus(X1, X2)
   U61(mark(X)) -> U61(X)
   U61(active(X)) -> U61(X)
   U71(mark(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, mark(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, mark(X3)) -> U71(X1, X2, X3)
   U71(active(X1), X2, X3) -> U71(X1, X2, X3)
   U71(X1, active(X2), X3) -> U71(X1, X2, X3)
   U71(X1, X2, active(X3)) -> U71(X1, X2, X3)
   U72(mark(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, mark(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, mark(X3)) -> U72(X1, X2, X3)
   U72(active(X1), X2, X3) -> U72(X1, X2, X3)
   U72(X1, active(X2), X3) -> U72(X1, X2, X3)
   U72(X1, X2, active(X3)) -> U72(X1, X2, X3)
   x(mark(X1), X2) -> x(X1, X2)
   x(X1, mark(X2)) -> x(X1, X2)
   x(active(X1), X2) -> x(X1, X2)
   x(X1, active(X2)) -> x(X1, X2)
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(x_1)) -> active(encArg(x_1))
   encArg(cons_mark(x_1)) -> mark(encArg(x_1))
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
   encArg(cons_U12(x_1)) -> U12(encArg(x_1))
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
   encArg(cons_U21(x_1)) -> U21(encArg(x_1))
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
   encArg(cons_U32(x_1)) -> U32(encArg(x_1))
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_s(x_1)) -> s(encArg(x_1))
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
   encArg(cons_U61(x_1)) -> U61(encArg(x_1))
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
   encode_active(x_1) -> active(encArg(x_1))
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
   encode_tt -> tt
   encode_mark(x_1) -> mark(encArg(x_1))
   encode_U12(x_1) -> U12(encArg(x_1))
   encode_isNat(x_1) -> isNat(encArg(x_1))
   encode_U21(x_1) -> U21(encArg(x_1))
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
   encode_U32(x_1) -> U32(encArg(x_1))
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_s(x_1) -> s(encArg(x_1))
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
   encode_U61(x_1) -> U61(encArg(x_1))
   encode_0 -> 0
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))

S is empty.
Rewrite Strategy: INNERMOST
----------------------------------------

(15) NonCtorToCtorProof (UPPER BOUND(ID))
transformed non-ctor to ctor-system
----------------------------------------

(16)
Obligation:
The Runtime Complexity (innermost) of the given CpxRelTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   mark(tt) -> active(tt)
   mark(0) -> active(0)
   U51(c_active(X1), X2, X3) -> U51(X1, X2, X3)
   U71(X1, c_active(X2), X3) -> U71(X1, X2, X3)
   U31(X1, c_active(X2)) -> U31(X1, X2)
   mark(c_U31(X1, X2)) -> active(U31(mark(X1), X2))
   U72(X1, c_mark(X2), X3) -> U72(X1, X2, X3)
   isNat(c_active(X)) -> isNat(X)
   U71(X1, X2, c_mark(X3)) -> U71(X1, X2, X3)
   U72(c_active(X1), X2, X3) -> U72(X1, X2, X3)
   U32(c_active(X)) -> U32(X)
   active(c_U51(tt, M, N)) -> mark(U52(isNat(N), M, N))
   U41(X1, c_active(X2)) -> U41(X1, X2)
   active(c_U32(tt)) -> mark(tt)
   x(c_active(X1), X2) -> x(X1, X2)
   mark(c_U11(X1, X2)) -> active(U11(mark(X1), X2))
   U11(X1, c_mark(X2)) -> U11(X1, X2)
   U52(c_mark(X1), X2, X3) -> U52(X1, X2, X3)
   active(c_U52(tt, M, N)) -> mark(s(plus(N, M)))
   active(c_U61(tt)) -> mark(0)
   U71(X1, X2, c_active(X3)) -> U71(X1, X2, X3)
   mark(c_x(X1, X2)) -> active(x(mark(X1), mark(X2)))
   U51(X1, c_mark(X2), X3) -> U51(X1, X2, X3)
   U31(c_active(X1), X2) -> U31(X1, X2)
   U51(X1, c_active(X2), X3) -> U51(X1, X2, X3)
   U52(c_active(X1), X2, X3) -> U52(X1, X2, X3)
   U51(c_mark(X1), X2, X3) -> U51(X1, X2, X3)
   active(c_U21(tt)) -> mark(tt)
   active(c_isNat(c_s(V1))) -> mark(U21(isNat(V1)))
   mark(c_U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3))
   U31(X1, c_mark(X2)) -> U31(X1, X2)
   U61(c_active(X)) -> U61(X)
   U41(c_active(X1), X2) -> U41(X1, X2)
   U12(c_mark(X)) -> U12(X)
   U12(c_active(X)) -> U12(X)
   active(c_U12(tt)) -> mark(tt)
   active(c_plus(N, 0)) -> mark(U41(isNat(N), N))
   mark(c_U21(X)) -> active(U21(mark(X)))
   x(X1, c_active(X2)) -> x(X1, X2)
   active(c_x(N, c_s(M))) -> mark(U71(isNat(M), M, N))
   U61(c_mark(X)) -> U61(X)
   mark(c_U32(X)) -> active(U32(mark(X)))
   U72(X1, X2, c_mark(X3)) -> U72(X1, X2, X3)
   active(c_U71(tt, M, N)) -> mark(U72(isNat(N), M, N))
   U31(c_mark(X1), X2) -> U31(X1, X2)
   isNat(c_mark(X)) -> isNat(X)
   U21(c_active(X)) -> U21(X)
   x(X1, c_mark(X2)) -> x(X1, X2)
   active(c_isNat(0)) -> mark(tt)
   U21(c_mark(X)) -> U21(X)
   U52(X1, c_active(X2), X3) -> U52(X1, X2, X3)
   U72(X1, X2, c_active(X3)) -> U72(X1, X2, X3)
   plus(X1, c_mark(X2)) -> plus(X1, X2)
   U71(c_mark(X1), X2, X3) -> U71(X1, X2, X3)
   mark(c_U12(X)) -> active(U12(mark(X)))
   active(c_U11(tt, V2)) -> mark(U12(isNat(V2)))
   U51(X1, X2, c_active(X3)) -> U51(X1, X2, X3)
   plus(c_active(X1), X2) -> plus(X1, X2)
   mark(c_s(X)) -> active(s(mark(X)))
   x(c_mark(X1), X2) -> x(X1, X2)
   active(c_isNat(c_plus(V1, V2))) -> mark(U11(isNat(V1), V2))
   mark(c_U41(X1, X2)) -> active(U41(mark(X1), X2))
   U41(X1, c_mark(X2)) -> U41(X1, X2)
   s(c_active(X)) -> s(X)
   U41(c_mark(X1), X2) -> U41(X1, X2)
   active(c_U31(tt, V2)) -> mark(U32(isNat(V2)))
   active(c_isNat(c_x(V1, V2))) -> mark(U31(isNat(V1), V2))
   U72(X1, c_active(X2), X3) -> U72(X1, X2, X3)
   mark(c_U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3))
   mark(c_U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3))
   mark(c_U61(X)) -> active(U61(mark(X)))
   U72(c_mark(X1), X2, X3) -> U72(X1, X2, X3)
   U52(X1, X2, c_active(X3)) -> U52(X1, X2, X3)
   s(c_mark(X)) -> s(X)
   U71(c_active(X1), X2, X3) -> U71(X1, X2, X3)
   plus(c_mark(X1), X2) -> plus(X1, X2)
   U71(X1, c_mark(X2), X3) -> U71(X1, X2, X3)
   U11(c_mark(X1), X2) -> U11(X1, X2)
   U11(X1, c_active(X2)) -> U11(X1, X2)
   mark(c_U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3))
   U51(X1, X2, c_mark(X3)) -> U51(X1, X2, X3)
   U52(X1, c_mark(X2), X3) -> U52(X1, X2, X3)
   active(c_U72(tt, M, N)) -> mark(plus(x(N, M), N))
   active(c_U41(tt, N)) -> mark(N)
   mark(c_isNat(X)) -> active(isNat(X))
   U32(c_mark(X)) -> U32(X)
   active(c_x(N, 0)) -> mark(U61(isNat(N)))
   active(c_plus(N, c_s(M))) -> mark(U51(isNat(M), M, N))
   U52(X1, X2, c_mark(X3)) -> U52(X1, X2, X3)
   plus(X1, c_active(X2)) -> plus(X1, X2)
   mark(c_plus(X1, X2)) -> active(plus(mark(X1), mark(X2)))
   U11(c_active(X1), X2) -> U11(X1, X2)

The (relative) TRS S consists of the following rules:

   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(x_1)) -> active(encArg(x_1))
   encArg(cons_mark(x_1)) -> mark(encArg(x_1))
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2))
   encArg(cons_U12(x_1)) -> U12(encArg(x_1))
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1))
   encArg(cons_U21(x_1)) -> U21(encArg(x_1))
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2))
   encArg(cons_U32(x_1)) -> U32(encArg(x_1))
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2))
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_s(x_1)) -> s(encArg(x_1))
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2))
   encArg(cons_U61(x_1)) -> U61(encArg(x_1))
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2))
   encode_active(x_1) -> active(encArg(x_1))
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2))
   encode_tt -> tt
   encode_mark(x_1) -> mark(encArg(x_1))
   encode_U12(x_1) -> U12(encArg(x_1))
   encode_isNat(x_1) -> isNat(encArg(x_1))
   encode_U21(x_1) -> U21(encArg(x_1))
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2))
   encode_U32(x_1) -> U32(encArg(x_1))
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2))
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_s(x_1) -> s(encArg(x_1))
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2))
   encode_U61(x_1) -> U61(encArg(x_1))
   encode_0 -> 0
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3))
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2))
   isNat(x0) -> c_isNat(x0)
   U72(x0, x1, x2) -> c_U72(x0, x1, x2)
   plus(x0, x1) -> c_plus(x0, x1)
   U12(x0) -> c_U12(x0)
   U31(x0, x1) -> c_U31(x0, x1)
   U32(x0) -> c_U32(x0)
   U52(x0, x1, x2) -> c_U52(x0, x1, x2)
   x(x0, x1) -> c_x(x0, x1)
   U21(x0) -> c_U21(x0)
   U11(x0, x1) -> c_U11(x0, x1)
   s(x0) -> c_s(x0)
   active(x0) -> c_active(x0)
   U41(x0, x1) -> c_U41(x0, x1)
   U71(x0, x1, x2) -> c_U71(x0, x1, x2)
   U51(x0, x1, x2) -> c_U51(x0, x1, x2)
   U61(x0) -> c_U61(x0)
   mark(x0) -> c_mark(x0)

Rewrite Strategy: INNERMOST
----------------------------------------

(17) RelTrsToWeightedTrsProof (BOTH BOUNDS(ID, ID))
Transformed relative TRS to weighted TRS
----------------------------------------

(18)
Obligation:
The Runtime Complexity (innermost) of the given CpxWeightedTrs could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   mark(tt) -> active(tt) [1]
   mark(0) -> active(0) [1]
   U51(c_active(X1), X2, X3) -> U51(X1, X2, X3) [1]
   U71(X1, c_active(X2), X3) -> U71(X1, X2, X3) [1]
   U31(X1, c_active(X2)) -> U31(X1, X2) [1]
   mark(c_U31(X1, X2)) -> active(U31(mark(X1), X2)) [1]
   U72(X1, c_mark(X2), X3) -> U72(X1, X2, X3) [1]
   isNat(c_active(X)) -> isNat(X) [1]
   U71(X1, X2, c_mark(X3)) -> U71(X1, X2, X3) [1]
   U72(c_active(X1), X2, X3) -> U72(X1, X2, X3) [1]
   U32(c_active(X)) -> U32(X) [1]
   active(c_U51(tt, M, N)) -> mark(U52(isNat(N), M, N)) [1]
   U41(X1, c_active(X2)) -> U41(X1, X2) [1]
   active(c_U32(tt)) -> mark(tt) [1]
   x(c_active(X1), X2) -> x(X1, X2) [1]
   mark(c_U11(X1, X2)) -> active(U11(mark(X1), X2)) [1]
   U11(X1, c_mark(X2)) -> U11(X1, X2) [1]
   U52(c_mark(X1), X2, X3) -> U52(X1, X2, X3) [1]
   active(c_U52(tt, M, N)) -> mark(s(plus(N, M))) [1]
   active(c_U61(tt)) -> mark(0) [1]
   U71(X1, X2, c_active(X3)) -> U71(X1, X2, X3) [1]
   mark(c_x(X1, X2)) -> active(x(mark(X1), mark(X2))) [1]
   U51(X1, c_mark(X2), X3) -> U51(X1, X2, X3) [1]
   U31(c_active(X1), X2) -> U31(X1, X2) [1]
   U51(X1, c_active(X2), X3) -> U51(X1, X2, X3) [1]
   U52(c_active(X1), X2, X3) -> U52(X1, X2, X3) [1]
   U51(c_mark(X1), X2, X3) -> U51(X1, X2, X3) [1]
   active(c_U21(tt)) -> mark(tt) [1]
   active(c_isNat(c_s(V1))) -> mark(U21(isNat(V1))) [1]
   mark(c_U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3)) [1]
   U31(X1, c_mark(X2)) -> U31(X1, X2) [1]
   U61(c_active(X)) -> U61(X) [1]
   U41(c_active(X1), X2) -> U41(X1, X2) [1]
   U12(c_mark(X)) -> U12(X) [1]
   U12(c_active(X)) -> U12(X) [1]
   active(c_U12(tt)) -> mark(tt) [1]
   active(c_plus(N, 0)) -> mark(U41(isNat(N), N)) [1]
   mark(c_U21(X)) -> active(U21(mark(X))) [1]
   x(X1, c_active(X2)) -> x(X1, X2) [1]
   active(c_x(N, c_s(M))) -> mark(U71(isNat(M), M, N)) [1]
   U61(c_mark(X)) -> U61(X) [1]
   mark(c_U32(X)) -> active(U32(mark(X))) [1]
   U72(X1, X2, c_mark(X3)) -> U72(X1, X2, X3) [1]
   active(c_U71(tt, M, N)) -> mark(U72(isNat(N), M, N)) [1]
   U31(c_mark(X1), X2) -> U31(X1, X2) [1]
   isNat(c_mark(X)) -> isNat(X) [1]
   U21(c_active(X)) -> U21(X) [1]
   x(X1, c_mark(X2)) -> x(X1, X2) [1]
   active(c_isNat(0)) -> mark(tt) [1]
   U21(c_mark(X)) -> U21(X) [1]
   U52(X1, c_active(X2), X3) -> U52(X1, X2, X3) [1]
   U72(X1, X2, c_active(X3)) -> U72(X1, X2, X3) [1]
   plus(X1, c_mark(X2)) -> plus(X1, X2) [1]
   U71(c_mark(X1), X2, X3) -> U71(X1, X2, X3) [1]
   mark(c_U12(X)) -> active(U12(mark(X))) [1]
   active(c_U11(tt, V2)) -> mark(U12(isNat(V2))) [1]
   U51(X1, X2, c_active(X3)) -> U51(X1, X2, X3) [1]
   plus(c_active(X1), X2) -> plus(X1, X2) [1]
   mark(c_s(X)) -> active(s(mark(X))) [1]
   x(c_mark(X1), X2) -> x(X1, X2) [1]
   active(c_isNat(c_plus(V1, V2))) -> mark(U11(isNat(V1), V2)) [1]
   mark(c_U41(X1, X2)) -> active(U41(mark(X1), X2)) [1]
   U41(X1, c_mark(X2)) -> U41(X1, X2) [1]
   s(c_active(X)) -> s(X) [1]
   U41(c_mark(X1), X2) -> U41(X1, X2) [1]
   active(c_U31(tt, V2)) -> mark(U32(isNat(V2))) [1]
   active(c_isNat(c_x(V1, V2))) -> mark(U31(isNat(V1), V2)) [1]
   U72(X1, c_active(X2), X3) -> U72(X1, X2, X3) [1]
   mark(c_U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3)) [1]
   mark(c_U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3)) [1]
   mark(c_U61(X)) -> active(U61(mark(X))) [1]
   U72(c_mark(X1), X2, X3) -> U72(X1, X2, X3) [1]
   U52(X1, X2, c_active(X3)) -> U52(X1, X2, X3) [1]
   s(c_mark(X)) -> s(X) [1]
   U71(c_active(X1), X2, X3) -> U71(X1, X2, X3) [1]
   plus(c_mark(X1), X2) -> plus(X1, X2) [1]
   U71(X1, c_mark(X2), X3) -> U71(X1, X2, X3) [1]
   U11(c_mark(X1), X2) -> U11(X1, X2) [1]
   U11(X1, c_active(X2)) -> U11(X1, X2) [1]
   mark(c_U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3)) [1]
   U51(X1, X2, c_mark(X3)) -> U51(X1, X2, X3) [1]
   U52(X1, c_mark(X2), X3) -> U52(X1, X2, X3) [1]
   active(c_U72(tt, M, N)) -> mark(plus(x(N, M), N)) [1]
   active(c_U41(tt, N)) -> mark(N) [1]
   mark(c_isNat(X)) -> active(isNat(X)) [1]
   U32(c_mark(X)) -> U32(X) [1]
   active(c_x(N, 0)) -> mark(U61(isNat(N))) [1]
   active(c_plus(N, c_s(M))) -> mark(U51(isNat(M), M, N)) [1]
   U52(X1, X2, c_mark(X3)) -> U52(X1, X2, X3) [1]
   plus(X1, c_active(X2)) -> plus(X1, X2) [1]
   mark(c_plus(X1, X2)) -> active(plus(mark(X1), mark(X2))) [1]
   U11(c_active(X1), X2) -> U11(X1, X2) [1]
   encArg(tt) -> tt [0]
   encArg(0) -> 0 [0]
   encArg(cons_active(x_1)) -> active(encArg(x_1)) [0]
   encArg(cons_mark(x_1)) -> mark(encArg(x_1)) [0]
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U12(x_1)) -> U12(encArg(x_1)) [0]
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1)) [0]
   encArg(cons_U21(x_1)) -> U21(encArg(x_1)) [0]
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U32(x_1)) -> U32(encArg(x_1)) [0]
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_s(x_1)) -> s(encArg(x_1)) [0]
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U61(x_1)) -> U61(encArg(x_1)) [0]
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2)) [0]
   encode_active(x_1) -> active(encArg(x_1)) [0]
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2)) [0]
   encode_tt -> tt [0]
   encode_mark(x_1) -> mark(encArg(x_1)) [0]
   encode_U12(x_1) -> U12(encArg(x_1)) [0]
   encode_isNat(x_1) -> isNat(encArg(x_1)) [0]
   encode_U21(x_1) -> U21(encArg(x_1)) [0]
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2)) [0]
   encode_U32(x_1) -> U32(encArg(x_1)) [0]
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2)) [0]
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_s(x_1) -> s(encArg(x_1)) [0]
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2)) [0]
   encode_U61(x_1) -> U61(encArg(x_1)) [0]
   encode_0 -> 0 [0]
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2)) [0]
   isNat(x0) -> c_isNat(x0) [0]
   U72(x0, x1, x2) -> c_U72(x0, x1, x2) [0]
   plus(x0, x1) -> c_plus(x0, x1) [0]
   U12(x0) -> c_U12(x0) [0]
   U31(x0, x1) -> c_U31(x0, x1) [0]
   U32(x0) -> c_U32(x0) [0]
   U52(x0, x1, x2) -> c_U52(x0, x1, x2) [0]
   x(x0, x1) -> c_x(x0, x1) [0]
   U21(x0) -> c_U21(x0) [0]
   U11(x0, x1) -> c_U11(x0, x1) [0]
   s(x0) -> c_s(x0) [0]
   active(x0) -> c_active(x0) [0]
   U41(x0, x1) -> c_U41(x0, x1) [0]
   U71(x0, x1, x2) -> c_U71(x0, x1, x2) [0]
   U51(x0, x1, x2) -> c_U51(x0, x1, x2) [0]
   U61(x0) -> c_U61(x0) [0]
   mark(x0) -> c_mark(x0) [0]

Rewrite Strategy: INNERMOST
----------------------------------------

(19) TypeInferenceProof (BOTH BOUNDS(ID, ID))
Infered types.
----------------------------------------

(20)
Obligation:
Runtime Complexity Weighted TRS with Types.
The TRS R consists of the following rules:

   mark(tt) -> active(tt) [1]
   mark(0) -> active(0) [1]
   U51(c_active(X1), X2, X3) -> U51(X1, X2, X3) [1]
   U71(X1, c_active(X2), X3) -> U71(X1, X2, X3) [1]
   U31(X1, c_active(X2)) -> U31(X1, X2) [1]
   mark(c_U31(X1, X2)) -> active(U31(mark(X1), X2)) [1]
   U72(X1, c_mark(X2), X3) -> U72(X1, X2, X3) [1]
   isNat(c_active(X)) -> isNat(X) [1]
   U71(X1, X2, c_mark(X3)) -> U71(X1, X2, X3) [1]
   U72(c_active(X1), X2, X3) -> U72(X1, X2, X3) [1]
   U32(c_active(X)) -> U32(X) [1]
   active(c_U51(tt, M, N)) -> mark(U52(isNat(N), M, N)) [1]
   U41(X1, c_active(X2)) -> U41(X1, X2) [1]
   active(c_U32(tt)) -> mark(tt) [1]
   x(c_active(X1), X2) -> x(X1, X2) [1]
   mark(c_U11(X1, X2)) -> active(U11(mark(X1), X2)) [1]
   U11(X1, c_mark(X2)) -> U11(X1, X2) [1]
   U52(c_mark(X1), X2, X3) -> U52(X1, X2, X3) [1]
   active(c_U52(tt, M, N)) -> mark(s(plus(N, M))) [1]
   active(c_U61(tt)) -> mark(0) [1]
   U71(X1, X2, c_active(X3)) -> U71(X1, X2, X3) [1]
   mark(c_x(X1, X2)) -> active(x(mark(X1), mark(X2))) [1]
   U51(X1, c_mark(X2), X3) -> U51(X1, X2, X3) [1]
   U31(c_active(X1), X2) -> U31(X1, X2) [1]
   U51(X1, c_active(X2), X3) -> U51(X1, X2, X3) [1]
   U52(c_active(X1), X2, X3) -> U52(X1, X2, X3) [1]
   U51(c_mark(X1), X2, X3) -> U51(X1, X2, X3) [1]
   active(c_U21(tt)) -> mark(tt) [1]
   active(c_isNat(c_s(V1))) -> mark(U21(isNat(V1))) [1]
   mark(c_U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3)) [1]
   U31(X1, c_mark(X2)) -> U31(X1, X2) [1]
   U61(c_active(X)) -> U61(X) [1]
   U41(c_active(X1), X2) -> U41(X1, X2) [1]
   U12(c_mark(X)) -> U12(X) [1]
   U12(c_active(X)) -> U12(X) [1]
   active(c_U12(tt)) -> mark(tt) [1]
   active(c_plus(N, 0)) -> mark(U41(isNat(N), N)) [1]
   mark(c_U21(X)) -> active(U21(mark(X))) [1]
   x(X1, c_active(X2)) -> x(X1, X2) [1]
   active(c_x(N, c_s(M))) -> mark(U71(isNat(M), M, N)) [1]
   U61(c_mark(X)) -> U61(X) [1]
   mark(c_U32(X)) -> active(U32(mark(X))) [1]
   U72(X1, X2, c_mark(X3)) -> U72(X1, X2, X3) [1]
   active(c_U71(tt, M, N)) -> mark(U72(isNat(N), M, N)) [1]
   U31(c_mark(X1), X2) -> U31(X1, X2) [1]
   isNat(c_mark(X)) -> isNat(X) [1]
   U21(c_active(X)) -> U21(X) [1]
   x(X1, c_mark(X2)) -> x(X1, X2) [1]
   active(c_isNat(0)) -> mark(tt) [1]
   U21(c_mark(X)) -> U21(X) [1]
   U52(X1, c_active(X2), X3) -> U52(X1, X2, X3) [1]
   U72(X1, X2, c_active(X3)) -> U72(X1, X2, X3) [1]
   plus(X1, c_mark(X2)) -> plus(X1, X2) [1]
   U71(c_mark(X1), X2, X3) -> U71(X1, X2, X3) [1]
   mark(c_U12(X)) -> active(U12(mark(X))) [1]
   active(c_U11(tt, V2)) -> mark(U12(isNat(V2))) [1]
   U51(X1, X2, c_active(X3)) -> U51(X1, X2, X3) [1]
   plus(c_active(X1), X2) -> plus(X1, X2) [1]
   mark(c_s(X)) -> active(s(mark(X))) [1]
   x(c_mark(X1), X2) -> x(X1, X2) [1]
   active(c_isNat(c_plus(V1, V2))) -> mark(U11(isNat(V1), V2)) [1]
   mark(c_U41(X1, X2)) -> active(U41(mark(X1), X2)) [1]
   U41(X1, c_mark(X2)) -> U41(X1, X2) [1]
   s(c_active(X)) -> s(X) [1]
   U41(c_mark(X1), X2) -> U41(X1, X2) [1]
   active(c_U31(tt, V2)) -> mark(U32(isNat(V2))) [1]
   active(c_isNat(c_x(V1, V2))) -> mark(U31(isNat(V1), V2)) [1]
   U72(X1, c_active(X2), X3) -> U72(X1, X2, X3) [1]
   mark(c_U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3)) [1]
   mark(c_U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3)) [1]
   mark(c_U61(X)) -> active(U61(mark(X))) [1]
   U72(c_mark(X1), X2, X3) -> U72(X1, X2, X3) [1]
   U52(X1, X2, c_active(X3)) -> U52(X1, X2, X3) [1]
   s(c_mark(X)) -> s(X) [1]
   U71(c_active(X1), X2, X3) -> U71(X1, X2, X3) [1]
   plus(c_mark(X1), X2) -> plus(X1, X2) [1]
   U71(X1, c_mark(X2), X3) -> U71(X1, X2, X3) [1]
   U11(c_mark(X1), X2) -> U11(X1, X2) [1]
   U11(X1, c_active(X2)) -> U11(X1, X2) [1]
   mark(c_U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3)) [1]
   U51(X1, X2, c_mark(X3)) -> U51(X1, X2, X3) [1]
   U52(X1, c_mark(X2), X3) -> U52(X1, X2, X3) [1]
   active(c_U72(tt, M, N)) -> mark(plus(x(N, M), N)) [1]
   active(c_U41(tt, N)) -> mark(N) [1]
   mark(c_isNat(X)) -> active(isNat(X)) [1]
   U32(c_mark(X)) -> U32(X) [1]
   active(c_x(N, 0)) -> mark(U61(isNat(N))) [1]
   active(c_plus(N, c_s(M))) -> mark(U51(isNat(M), M, N)) [1]
   U52(X1, X2, c_mark(X3)) -> U52(X1, X2, X3) [1]
   plus(X1, c_active(X2)) -> plus(X1, X2) [1]
   mark(c_plus(X1, X2)) -> active(plus(mark(X1), mark(X2))) [1]
   U11(c_active(X1), X2) -> U11(X1, X2) [1]
   encArg(tt) -> tt [0]
   encArg(0) -> 0 [0]
   encArg(cons_active(x_1)) -> active(encArg(x_1)) [0]
   encArg(cons_mark(x_1)) -> mark(encArg(x_1)) [0]
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U12(x_1)) -> U12(encArg(x_1)) [0]
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1)) [0]
   encArg(cons_U21(x_1)) -> U21(encArg(x_1)) [0]
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U32(x_1)) -> U32(encArg(x_1)) [0]
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_s(x_1)) -> s(encArg(x_1)) [0]
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U61(x_1)) -> U61(encArg(x_1)) [0]
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2)) [0]
   encode_active(x_1) -> active(encArg(x_1)) [0]
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2)) [0]
   encode_tt -> tt [0]
   encode_mark(x_1) -> mark(encArg(x_1)) [0]
   encode_U12(x_1) -> U12(encArg(x_1)) [0]
   encode_isNat(x_1) -> isNat(encArg(x_1)) [0]
   encode_U21(x_1) -> U21(encArg(x_1)) [0]
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2)) [0]
   encode_U32(x_1) -> U32(encArg(x_1)) [0]
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2)) [0]
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_s(x_1) -> s(encArg(x_1)) [0]
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2)) [0]
   encode_U61(x_1) -> U61(encArg(x_1)) [0]
   encode_0 -> 0 [0]
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2)) [0]
   isNat(x0) -> c_isNat(x0) [0]
   U72(x0, x1, x2) -> c_U72(x0, x1, x2) [0]
   plus(x0, x1) -> c_plus(x0, x1) [0]
   U12(x0) -> c_U12(x0) [0]
   U31(x0, x1) -> c_U31(x0, x1) [0]
   U32(x0) -> c_U32(x0) [0]
   U52(x0, x1, x2) -> c_U52(x0, x1, x2) [0]
   x(x0, x1) -> c_x(x0, x1) [0]
   U21(x0) -> c_U21(x0) [0]
   U11(x0, x1) -> c_U11(x0, x1) [0]
   s(x0) -> c_s(x0) [0]
   active(x0) -> c_active(x0) [0]
   U41(x0, x1) -> c_U41(x0, x1) [0]
   U71(x0, x1, x2) -> c_U71(x0, x1, x2) [0]
   U51(x0, x1, x2) -> c_U51(x0, x1, x2) [0]
   U61(x0) -> c_U61(x0) [0]
   mark(x0) -> c_mark(x0) [0]

The TRS has the following type information:
mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
tt :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
0 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
c_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encArg :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
cons_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_tt :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_0 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x
encode_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x

Rewrite Strategy: INNERMOST
----------------------------------------

(21) CompletionProof (UPPER BOUND(ID))
The TRS is a completely defined constructor system, as every type has a constant constructor and the following rules were added:

   encArg(v0) -> null_encArg [0]
   encode_active(v0) -> null_encode_active [0]
   encode_U11(v0, v1) -> null_encode_U11 [0]
   encode_tt -> null_encode_tt [0]
   encode_mark(v0) -> null_encode_mark [0]
   encode_U12(v0) -> null_encode_U12 [0]
   encode_isNat(v0) -> null_encode_isNat [0]
   encode_U21(v0) -> null_encode_U21 [0]
   encode_U31(v0, v1) -> null_encode_U31 [0]
   encode_U32(v0) -> null_encode_U32 [0]
   encode_U41(v0, v1) -> null_encode_U41 [0]
   encode_U51(v0, v1, v2) -> null_encode_U51 [0]
   encode_U52(v0, v1, v2) -> null_encode_U52 [0]
   encode_s(v0) -> null_encode_s [0]
   encode_plus(v0, v1) -> null_encode_plus [0]
   encode_U61(v0) -> null_encode_U61 [0]
   encode_0 -> null_encode_0 [0]
   encode_U71(v0, v1, v2) -> null_encode_U71 [0]
   encode_U72(v0, v1, v2) -> null_encode_U72 [0]
   encode_x(v0, v1) -> null_encode_x [0]
   isNat(v0) -> null_isNat [0]
   U72(v0, v1, v2) -> null_U72 [0]
   plus(v0, v1) -> null_plus [0]
   U12(v0) -> null_U12 [0]
   U31(v0, v1) -> null_U31 [0]
   U32(v0) -> null_U32 [0]
   U52(v0, v1, v2) -> null_U52 [0]
   x(v0, v1) -> null_x [0]
   U21(v0) -> null_U21 [0]
   U11(v0, v1) -> null_U11 [0]
   s(v0) -> null_s [0]
   active(v0) -> null_active [0]
   U41(v0, v1) -> null_U41 [0]
   U71(v0, v1, v2) -> null_U71 [0]
   U51(v0, v1, v2) -> null_U51 [0]
   U61(v0) -> null_U61 [0]
   mark(v0) -> null_mark [0]

And the following fresh constants:    null_encArg, null_encode_active, null_encode_U11, null_encode_tt, null_encode_mark, null_encode_U12, null_encode_isNat, null_encode_U21, null_encode_U31, null_encode_U32, null_encode_U41, null_encode_U51, null_encode_U52, null_encode_s, null_encode_plus, null_encode_U61, null_encode_0, null_encode_U71, null_encode_U72, null_encode_x, null_isNat, null_U72, null_plus, null_U12, null_U31, null_U32, null_U52, null_x, null_U21, null_U11, null_s, null_active, null_U41, null_U71, null_U51, null_U61, null_mark

----------------------------------------

(22)
Obligation:
Runtime Complexity Weighted TRS where all functions are completely defined. The underlying TRS is:

Runtime Complexity Weighted TRS with Types.
The TRS R consists of the following rules:

   mark(tt) -> active(tt) [1]
   mark(0) -> active(0) [1]
   U51(c_active(X1), X2, X3) -> U51(X1, X2, X3) [1]
   U71(X1, c_active(X2), X3) -> U71(X1, X2, X3) [1]
   U31(X1, c_active(X2)) -> U31(X1, X2) [1]
   mark(c_U31(X1, X2)) -> active(U31(mark(X1), X2)) [1]
   U72(X1, c_mark(X2), X3) -> U72(X1, X2, X3) [1]
   isNat(c_active(X)) -> isNat(X) [1]
   U71(X1, X2, c_mark(X3)) -> U71(X1, X2, X3) [1]
   U72(c_active(X1), X2, X3) -> U72(X1, X2, X3) [1]
   U32(c_active(X)) -> U32(X) [1]
   active(c_U51(tt, M, N)) -> mark(U52(isNat(N), M, N)) [1]
   U41(X1, c_active(X2)) -> U41(X1, X2) [1]
   active(c_U32(tt)) -> mark(tt) [1]
   x(c_active(X1), X2) -> x(X1, X2) [1]
   mark(c_U11(X1, X2)) -> active(U11(mark(X1), X2)) [1]
   U11(X1, c_mark(X2)) -> U11(X1, X2) [1]
   U52(c_mark(X1), X2, X3) -> U52(X1, X2, X3) [1]
   active(c_U52(tt, M, N)) -> mark(s(plus(N, M))) [1]
   active(c_U61(tt)) -> mark(0) [1]
   U71(X1, X2, c_active(X3)) -> U71(X1, X2, X3) [1]
   mark(c_x(X1, X2)) -> active(x(mark(X1), mark(X2))) [1]
   U51(X1, c_mark(X2), X3) -> U51(X1, X2, X3) [1]
   U31(c_active(X1), X2) -> U31(X1, X2) [1]
   U51(X1, c_active(X2), X3) -> U51(X1, X2, X3) [1]
   U52(c_active(X1), X2, X3) -> U52(X1, X2, X3) [1]
   U51(c_mark(X1), X2, X3) -> U51(X1, X2, X3) [1]
   active(c_U21(tt)) -> mark(tt) [1]
   active(c_isNat(c_s(V1))) -> mark(U21(isNat(V1))) [1]
   mark(c_U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3)) [1]
   U31(X1, c_mark(X2)) -> U31(X1, X2) [1]
   U61(c_active(X)) -> U61(X) [1]
   U41(c_active(X1), X2) -> U41(X1, X2) [1]
   U12(c_mark(X)) -> U12(X) [1]
   U12(c_active(X)) -> U12(X) [1]
   active(c_U12(tt)) -> mark(tt) [1]
   active(c_plus(N, 0)) -> mark(U41(isNat(N), N)) [1]
   mark(c_U21(X)) -> active(U21(mark(X))) [1]
   x(X1, c_active(X2)) -> x(X1, X2) [1]
   active(c_x(N, c_s(M))) -> mark(U71(isNat(M), M, N)) [1]
   U61(c_mark(X)) -> U61(X) [1]
   mark(c_U32(X)) -> active(U32(mark(X))) [1]
   U72(X1, X2, c_mark(X3)) -> U72(X1, X2, X3) [1]
   active(c_U71(tt, M, N)) -> mark(U72(isNat(N), M, N)) [1]
   U31(c_mark(X1), X2) -> U31(X1, X2) [1]
   isNat(c_mark(X)) -> isNat(X) [1]
   U21(c_active(X)) -> U21(X) [1]
   x(X1, c_mark(X2)) -> x(X1, X2) [1]
   active(c_isNat(0)) -> mark(tt) [1]
   U21(c_mark(X)) -> U21(X) [1]
   U52(X1, c_active(X2), X3) -> U52(X1, X2, X3) [1]
   U72(X1, X2, c_active(X3)) -> U72(X1, X2, X3) [1]
   plus(X1, c_mark(X2)) -> plus(X1, X2) [1]
   U71(c_mark(X1), X2, X3) -> U71(X1, X2, X3) [1]
   mark(c_U12(X)) -> active(U12(mark(X))) [1]
   active(c_U11(tt, V2)) -> mark(U12(isNat(V2))) [1]
   U51(X1, X2, c_active(X3)) -> U51(X1, X2, X3) [1]
   plus(c_active(X1), X2) -> plus(X1, X2) [1]
   mark(c_s(X)) -> active(s(mark(X))) [1]
   x(c_mark(X1), X2) -> x(X1, X2) [1]
   active(c_isNat(c_plus(V1, V2))) -> mark(U11(isNat(V1), V2)) [1]
   mark(c_U41(X1, X2)) -> active(U41(mark(X1), X2)) [1]
   U41(X1, c_mark(X2)) -> U41(X1, X2) [1]
   s(c_active(X)) -> s(X) [1]
   U41(c_mark(X1), X2) -> U41(X1, X2) [1]
   active(c_U31(tt, V2)) -> mark(U32(isNat(V2))) [1]
   active(c_isNat(c_x(V1, V2))) -> mark(U31(isNat(V1), V2)) [1]
   U72(X1, c_active(X2), X3) -> U72(X1, X2, X3) [1]
   mark(c_U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3)) [1]
   mark(c_U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3)) [1]
   mark(c_U61(X)) -> active(U61(mark(X))) [1]
   U72(c_mark(X1), X2, X3) -> U72(X1, X2, X3) [1]
   U52(X1, X2, c_active(X3)) -> U52(X1, X2, X3) [1]
   s(c_mark(X)) -> s(X) [1]
   U71(c_active(X1), X2, X3) -> U71(X1, X2, X3) [1]
   plus(c_mark(X1), X2) -> plus(X1, X2) [1]
   U71(X1, c_mark(X2), X3) -> U71(X1, X2, X3) [1]
   U11(c_mark(X1), X2) -> U11(X1, X2) [1]
   U11(X1, c_active(X2)) -> U11(X1, X2) [1]
   mark(c_U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3)) [1]
   U51(X1, X2, c_mark(X3)) -> U51(X1, X2, X3) [1]
   U52(X1, c_mark(X2), X3) -> U52(X1, X2, X3) [1]
   active(c_U72(tt, M, N)) -> mark(plus(x(N, M), N)) [1]
   active(c_U41(tt, N)) -> mark(N) [1]
   mark(c_isNat(X)) -> active(isNat(X)) [1]
   U32(c_mark(X)) -> U32(X) [1]
   active(c_x(N, 0)) -> mark(U61(isNat(N))) [1]
   active(c_plus(N, c_s(M))) -> mark(U51(isNat(M), M, N)) [1]
   U52(X1, X2, c_mark(X3)) -> U52(X1, X2, X3) [1]
   plus(X1, c_active(X2)) -> plus(X1, X2) [1]
   mark(c_plus(X1, X2)) -> active(plus(mark(X1), mark(X2))) [1]
   U11(c_active(X1), X2) -> U11(X1, X2) [1]
   encArg(tt) -> tt [0]
   encArg(0) -> 0 [0]
   encArg(cons_active(x_1)) -> active(encArg(x_1)) [0]
   encArg(cons_mark(x_1)) -> mark(encArg(x_1)) [0]
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U12(x_1)) -> U12(encArg(x_1)) [0]
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1)) [0]
   encArg(cons_U21(x_1)) -> U21(encArg(x_1)) [0]
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U32(x_1)) -> U32(encArg(x_1)) [0]
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_s(x_1)) -> s(encArg(x_1)) [0]
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U61(x_1)) -> U61(encArg(x_1)) [0]
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2)) [0]
   encode_active(x_1) -> active(encArg(x_1)) [0]
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2)) [0]
   encode_tt -> tt [0]
   encode_mark(x_1) -> mark(encArg(x_1)) [0]
   encode_U12(x_1) -> U12(encArg(x_1)) [0]
   encode_isNat(x_1) -> isNat(encArg(x_1)) [0]
   encode_U21(x_1) -> U21(encArg(x_1)) [0]
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2)) [0]
   encode_U32(x_1) -> U32(encArg(x_1)) [0]
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2)) [0]
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_s(x_1) -> s(encArg(x_1)) [0]
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2)) [0]
   encode_U61(x_1) -> U61(encArg(x_1)) [0]
   encode_0 -> 0 [0]
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2)) [0]
   isNat(x0) -> c_isNat(x0) [0]
   U72(x0, x1, x2) -> c_U72(x0, x1, x2) [0]
   plus(x0, x1) -> c_plus(x0, x1) [0]
   U12(x0) -> c_U12(x0) [0]
   U31(x0, x1) -> c_U31(x0, x1) [0]
   U32(x0) -> c_U32(x0) [0]
   U52(x0, x1, x2) -> c_U52(x0, x1, x2) [0]
   x(x0, x1) -> c_x(x0, x1) [0]
   U21(x0) -> c_U21(x0) [0]
   U11(x0, x1) -> c_U11(x0, x1) [0]
   s(x0) -> c_s(x0) [0]
   active(x0) -> c_active(x0) [0]
   U41(x0, x1) -> c_U41(x0, x1) [0]
   U71(x0, x1, x2) -> c_U71(x0, x1, x2) [0]
   U51(x0, x1, x2) -> c_U51(x0, x1, x2) [0]
   U61(x0) -> c_U61(x0) [0]
   mark(x0) -> c_mark(x0) [0]
   encArg(v0) -> null_encArg [0]
   encode_active(v0) -> null_encode_active [0]
   encode_U11(v0, v1) -> null_encode_U11 [0]
   encode_tt -> null_encode_tt [0]
   encode_mark(v0) -> null_encode_mark [0]
   encode_U12(v0) -> null_encode_U12 [0]
   encode_isNat(v0) -> null_encode_isNat [0]
   encode_U21(v0) -> null_encode_U21 [0]
   encode_U31(v0, v1) -> null_encode_U31 [0]
   encode_U32(v0) -> null_encode_U32 [0]
   encode_U41(v0, v1) -> null_encode_U41 [0]
   encode_U51(v0, v1, v2) -> null_encode_U51 [0]
   encode_U52(v0, v1, v2) -> null_encode_U52 [0]
   encode_s(v0) -> null_encode_s [0]
   encode_plus(v0, v1) -> null_encode_plus [0]
   encode_U61(v0) -> null_encode_U61 [0]
   encode_0 -> null_encode_0 [0]
   encode_U71(v0, v1, v2) -> null_encode_U71 [0]
   encode_U72(v0, v1, v2) -> null_encode_U72 [0]
   encode_x(v0, v1) -> null_encode_x [0]
   isNat(v0) -> null_isNat [0]
   U72(v0, v1, v2) -> null_U72 [0]
   plus(v0, v1) -> null_plus [0]
   U12(v0) -> null_U12 [0]
   U31(v0, v1) -> null_U31 [0]
   U32(v0) -> null_U32 [0]
   U52(v0, v1, v2) -> null_U52 [0]
   x(v0, v1) -> null_x [0]
   U21(v0) -> null_U21 [0]
   U11(v0, v1) -> null_U11 [0]
   s(v0) -> null_s [0]
   active(v0) -> null_active [0]
   U41(v0, v1) -> null_U41 [0]
   U71(v0, v1, v2) -> null_U71 [0]
   U51(v0, v1, v2) -> null_U51 [0]
   U61(v0) -> null_U61 [0]
   mark(v0) -> null_mark [0]

The TRS has the following type information:
mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
tt :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
0 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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cons_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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cons_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_tt :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_0 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encArg :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_tt :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_0 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark

Rewrite Strategy: INNERMOST
----------------------------------------

(23) CpxTypedWeightedTrsToRntsProof (UPPER BOUND(ID))
Transformed the TRS into an over-approximating RNTS by (improved) Size Abstraction.
The constant constructors are abstracted as follows:

   tt => 1
   0 => 0
   null_encArg => 0
   null_encode_active => 0
   null_encode_U11 => 0
   null_encode_tt => 0
   null_encode_mark => 0
   null_encode_U12 => 0
   null_encode_isNat => 0
   null_encode_U21 => 0
   null_encode_U31 => 0
   null_encode_U32 => 0
   null_encode_U41 => 0
   null_encode_U51 => 0
   null_encode_U52 => 0
   null_encode_s => 0
   null_encode_plus => 0
   null_encode_U61 => 0
   null_encode_0 => 0
   null_encode_U71 => 0
   null_encode_U72 => 0
   null_encode_x => 0
   null_isNat => 0
   null_U72 => 0
   null_plus => 0
   null_U12 => 0
   null_U31 => 0
   null_U32 => 0
   null_U52 => 0
   null_x => 0
   null_U21 => 0
   null_U11 => 0
   null_s => 0
   null_active => 0
   null_U41 => 0
   null_U71 => 0
   null_U51 => 0
   null_U61 => 0
   null_mark => 0

----------------------------------------

(24)
Obligation:
Complexity RNTS consisting of the following rules:

   U11(z, z') -{ 1 }-> U11(X1, X2) :|: X1 >= 0, z' = 1 + X2, X2 >= 0, z = X1
   U11(z, z') -{ 1 }-> U11(X1, X2) :|: X1 >= 0, z = 1 + X1, X2 >= 0, z' = X2
   U11(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   U11(z, z') -{ 0 }-> 1 + x0 + x1 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1
   U12(z) -{ 1 }-> U12(X) :|: z = 1 + X, X >= 0
   U12(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   U12(z) -{ 0 }-> 1 + x0 :|: z = x0, x0 >= 0
   U21(z) -{ 1 }-> U21(X) :|: z = 1 + X, X >= 0
   U21(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   U21(z) -{ 0 }-> 1 + x0 :|: z = x0, x0 >= 0
   U31(z, z') -{ 1 }-> U31(X1, X2) :|: X1 >= 0, z' = 1 + X2, X2 >= 0, z = X1
   U31(z, z') -{ 1 }-> U31(X1, X2) :|: X1 >= 0, z = 1 + X1, X2 >= 0, z' = X2
   U31(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   U31(z, z') -{ 0 }-> 1 + x0 + x1 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1
   U32(z) -{ 1 }-> U32(X) :|: z = 1 + X, X >= 0
   U32(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   U32(z) -{ 0 }-> 1 + x0 :|: z = x0, x0 >= 0
   U41(z, z') -{ 1 }-> U41(X1, X2) :|: X1 >= 0, z' = 1 + X2, X2 >= 0, z = X1
   U41(z, z') -{ 1 }-> U41(X1, X2) :|: X1 >= 0, z = 1 + X1, X2 >= 0, z' = X2
   U41(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   U41(z, z') -{ 0 }-> 1 + x0 + x1 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1
   U51(z, z', z'') -{ 1 }-> U51(X1, X2, X3) :|: X1 >= 0, z = 1 + X1, X3 >= 0, X2 >= 0, z' = X2, z'' = X3
   U51(z, z', z'') -{ 1 }-> U51(X1, X2, X3) :|: X1 >= 0, X3 >= 0, z' = 1 + X2, X2 >= 0, z = X1, z'' = X3
   U51(z, z', z'') -{ 1 }-> U51(X1, X2, X3) :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = 1 + X3
   U51(z, z', z'') -{ 0 }-> 0 :|: v0 >= 0, z'' = v2, v1 >= 0, z = v0, z' = v1, v2 >= 0
   U51(z, z', z'') -{ 0 }-> 1 + x0 + x1 + x2 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1, z'' = x2, x2 >= 0
   U52(z, z', z'') -{ 1 }-> U52(X1, X2, X3) :|: X1 >= 0, z = 1 + X1, X3 >= 0, X2 >= 0, z' = X2, z'' = X3
   U52(z, z', z'') -{ 1 }-> U52(X1, X2, X3) :|: X1 >= 0, X3 >= 0, z' = 1 + X2, X2 >= 0, z = X1, z'' = X3
   U52(z, z', z'') -{ 1 }-> U52(X1, X2, X3) :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = 1 + X3
   U52(z, z', z'') -{ 0 }-> 0 :|: v0 >= 0, z'' = v2, v1 >= 0, z = v0, z' = v1, v2 >= 0
   U52(z, z', z'') -{ 0 }-> 1 + x0 + x1 + x2 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1, z'' = x2, x2 >= 0
   U61(z) -{ 1 }-> U61(X) :|: z = 1 + X, X >= 0
   U61(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   U61(z) -{ 0 }-> 1 + x0 :|: z = x0, x0 >= 0
   U71(z, z', z'') -{ 1 }-> U71(X1, X2, X3) :|: X1 >= 0, X3 >= 0, z' = 1 + X2, X2 >= 0, z = X1, z'' = X3
   U71(z, z', z'') -{ 1 }-> U71(X1, X2, X3) :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = 1 + X3
   U71(z, z', z'') -{ 1 }-> U71(X1, X2, X3) :|: X1 >= 0, z = 1 + X1, X3 >= 0, X2 >= 0, z' = X2, z'' = X3
   U71(z, z', z'') -{ 0 }-> 0 :|: v0 >= 0, z'' = v2, v1 >= 0, z = v0, z' = v1, v2 >= 0
   U71(z, z', z'') -{ 0 }-> 1 + x0 + x1 + x2 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1, z'' = x2, x2 >= 0
   U72(z, z', z'') -{ 1 }-> U72(X1, X2, X3) :|: X1 >= 0, X3 >= 0, z' = 1 + X2, X2 >= 0, z = X1, z'' = X3
   U72(z, z', z'') -{ 1 }-> U72(X1, X2, X3) :|: X1 >= 0, z = 1 + X1, X3 >= 0, X2 >= 0, z' = X2, z'' = X3
   U72(z, z', z'') -{ 1 }-> U72(X1, X2, X3) :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = 1 + X3
   U72(z, z', z'') -{ 0 }-> 0 :|: v0 >= 0, z'' = v2, v1 >= 0, z = v0, z' = v1, v2 >= 0
   U72(z, z', z'') -{ 0 }-> 1 + x0 + x1 + x2 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1, z'' = x2, x2 >= 0
   active(z) -{ 1 }-> mark(N) :|: z = 1 + 1 + N, N >= 0
   active(z) -{ 1 }-> mark(s(plus(N, M))) :|: z = 1 + 1 + M + N, M >= 0, N >= 0
   active(z) -{ 1 }-> mark(plus(x(N, M), N)) :|: z = 1 + 1 + M + N, M >= 0, N >= 0
   active(z) -{ 1 }-> mark(U72(isNat(N), M, N)) :|: z = 1 + 1 + M + N, M >= 0, N >= 0
   active(z) -{ 1 }-> mark(U71(isNat(M), M, N)) :|: M >= 0, z = 1 + N + (1 + M), N >= 0
   active(z) -{ 1 }-> mark(U61(isNat(N))) :|: z = 1 + N + 0, N >= 0
   active(z) -{ 1 }-> mark(U52(isNat(N), M, N)) :|: z = 1 + 1 + M + N, M >= 0, N >= 0
   active(z) -{ 1 }-> mark(U51(isNat(M), M, N)) :|: M >= 0, z = 1 + N + (1 + M), N >= 0
   active(z) -{ 1 }-> mark(U41(isNat(N), N)) :|: z = 1 + N + 0, N >= 0
   active(z) -{ 1 }-> mark(U32(isNat(V2))) :|: z = 1 + 1 + V2, V2 >= 0
   active(z) -{ 1 }-> mark(U31(isNat(V1), V2)) :|: V1 >= 0, V2 >= 0, z = 1 + (1 + V1 + V2)
   active(z) -{ 1 }-> mark(U21(isNat(V1))) :|: V1 >= 0, z = 1 + (1 + V1)
   active(z) -{ 1 }-> mark(U12(isNat(V2))) :|: z = 1 + 1 + V2, V2 >= 0
   active(z) -{ 1 }-> mark(U11(isNat(V1), V2)) :|: V1 >= 0, V2 >= 0, z = 1 + (1 + V1 + V2)
   active(z) -{ 1 }-> mark(1) :|: z = 1 + 1
   active(z) -{ 1 }-> mark(1) :|: z = 1 + 0
   active(z) -{ 1 }-> mark(0) :|: z = 1 + 1
   active(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   active(z) -{ 0 }-> 1 + x0 :|: z = x0, x0 >= 0
   encArg(z) -{ 0 }-> x(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, z = 1 + x_1 + x_2, x_2 >= 0
   encArg(z) -{ 0 }-> s(encArg(x_1)) :|: z = 1 + x_1, x_1 >= 0
   encArg(z) -{ 0 }-> plus(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, z = 1 + x_1 + x_2, x_2 >= 0
   encArg(z) -{ 0 }-> mark(encArg(x_1)) :|: z = 1 + x_1, x_1 >= 0
   encArg(z) -{ 0 }-> isNat(encArg(x_1)) :|: z = 1 + x_1, x_1 >= 0
   encArg(z) -{ 0 }-> active(encArg(x_1)) :|: z = 1 + x_1, x_1 >= 0
   encArg(z) -{ 0 }-> U72(encArg(x_1), encArg(x_2), encArg(x_3)) :|: x_1 >= 0, z = 1 + x_1 + x_2 + x_3, x_3 >= 0, x_2 >= 0
   encArg(z) -{ 0 }-> U71(encArg(x_1), encArg(x_2), encArg(x_3)) :|: x_1 >= 0, z = 1 + x_1 + x_2 + x_3, x_3 >= 0, x_2 >= 0
   encArg(z) -{ 0 }-> U61(encArg(x_1)) :|: z = 1 + x_1, x_1 >= 0
   encArg(z) -{ 0 }-> U52(encArg(x_1), encArg(x_2), encArg(x_3)) :|: x_1 >= 0, z = 1 + x_1 + x_2 + x_3, x_3 >= 0, x_2 >= 0
   encArg(z) -{ 0 }-> U51(encArg(x_1), encArg(x_2), encArg(x_3)) :|: x_1 >= 0, z = 1 + x_1 + x_2 + x_3, x_3 >= 0, x_2 >= 0
   encArg(z) -{ 0 }-> U41(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, z = 1 + x_1 + x_2, x_2 >= 0
   encArg(z) -{ 0 }-> U32(encArg(x_1)) :|: z = 1 + x_1, x_1 >= 0
   encArg(z) -{ 0 }-> U31(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, z = 1 + x_1 + x_2, x_2 >= 0
   encArg(z) -{ 0 }-> U21(encArg(x_1)) :|: z = 1 + x_1, x_1 >= 0
   encArg(z) -{ 0 }-> U12(encArg(x_1)) :|: z = 1 + x_1, x_1 >= 0
   encArg(z) -{ 0 }-> U11(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, z = 1 + x_1 + x_2, x_2 >= 0
   encArg(z) -{ 0 }-> 1 :|: z = 1
   encArg(z) -{ 0 }-> 0 :|: z = 0
   encArg(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_0 -{ 0 }-> 0 :|: 
   encode_U11(z, z') -{ 0 }-> U11(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, x_2 >= 0, z = x_1, z' = x_2
   encode_U11(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   encode_U12(z) -{ 0 }-> U12(encArg(x_1)) :|: x_1 >= 0, z = x_1
   encode_U12(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_U21(z) -{ 0 }-> U21(encArg(x_1)) :|: x_1 >= 0, z = x_1
   encode_U21(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_U31(z, z') -{ 0 }-> U31(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, x_2 >= 0, z = x_1, z' = x_2
   encode_U31(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   encode_U32(z) -{ 0 }-> U32(encArg(x_1)) :|: x_1 >= 0, z = x_1
   encode_U32(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_U41(z, z') -{ 0 }-> U41(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, x_2 >= 0, z = x_1, z' = x_2
   encode_U41(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   encode_U51(z, z', z'') -{ 0 }-> U51(encArg(x_1), encArg(x_2), encArg(x_3)) :|: x_1 >= 0, x_3 >= 0, x_2 >= 0, z = x_1, z' = x_2, z'' = x_3
   encode_U51(z, z', z'') -{ 0 }-> 0 :|: v0 >= 0, z'' = v2, v1 >= 0, z = v0, z' = v1, v2 >= 0
   encode_U52(z, z', z'') -{ 0 }-> U52(encArg(x_1), encArg(x_2), encArg(x_3)) :|: x_1 >= 0, x_3 >= 0, x_2 >= 0, z = x_1, z' = x_2, z'' = x_3
   encode_U52(z, z', z'') -{ 0 }-> 0 :|: v0 >= 0, z'' = v2, v1 >= 0, z = v0, z' = v1, v2 >= 0
   encode_U61(z) -{ 0 }-> U61(encArg(x_1)) :|: x_1 >= 0, z = x_1
   encode_U61(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_U71(z, z', z'') -{ 0 }-> U71(encArg(x_1), encArg(x_2), encArg(x_3)) :|: x_1 >= 0, x_3 >= 0, x_2 >= 0, z = x_1, z' = x_2, z'' = x_3
   encode_U71(z, z', z'') -{ 0 }-> 0 :|: v0 >= 0, z'' = v2, v1 >= 0, z = v0, z' = v1, v2 >= 0
   encode_U72(z, z', z'') -{ 0 }-> U72(encArg(x_1), encArg(x_2), encArg(x_3)) :|: x_1 >= 0, x_3 >= 0, x_2 >= 0, z = x_1, z' = x_2, z'' = x_3
   encode_U72(z, z', z'') -{ 0 }-> 0 :|: v0 >= 0, z'' = v2, v1 >= 0, z = v0, z' = v1, v2 >= 0
   encode_active(z) -{ 0 }-> active(encArg(x_1)) :|: x_1 >= 0, z = x_1
   encode_active(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_isNat(z) -{ 0 }-> isNat(encArg(x_1)) :|: x_1 >= 0, z = x_1
   encode_isNat(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_mark(z) -{ 0 }-> mark(encArg(x_1)) :|: x_1 >= 0, z = x_1
   encode_mark(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_plus(z, z') -{ 0 }-> plus(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, x_2 >= 0, z = x_1, z' = x_2
   encode_plus(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   encode_s(z) -{ 0 }-> s(encArg(x_1)) :|: x_1 >= 0, z = x_1
   encode_s(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   encode_tt -{ 0 }-> 1 :|: 
   encode_tt -{ 0 }-> 0 :|: 
   encode_x(z, z') -{ 0 }-> x(encArg(x_1), encArg(x_2)) :|: x_1 >= 0, x_2 >= 0, z = x_1, z' = x_2
   encode_x(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   isNat(z) -{ 1 }-> isNat(X) :|: z = 1 + X, X >= 0
   isNat(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   isNat(z) -{ 0 }-> 1 + x0 :|: z = x0, x0 >= 0
   mark(z) -{ 1 }-> active(x(mark(X1), mark(X2))) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> active(s(mark(X))) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> active(plus(mark(X1), mark(X2))) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> active(isNat(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> active(U72(mark(X1), X2, X3)) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> active(U71(mark(X1), X2, X3)) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> active(U61(mark(X))) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> active(U52(mark(X1), X2, X3)) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> active(U51(mark(X1), X2, X3)) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> active(U41(mark(X1), X2)) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> active(U32(mark(X))) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> active(U31(mark(X1), X2)) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> active(U21(mark(X))) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> active(U12(mark(X))) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> active(U11(mark(X1), X2)) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> active(1) :|: z = 1
   mark(z) -{ 1 }-> active(0) :|: z = 0
   mark(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   mark(z) -{ 0 }-> 1 + x0 :|: z = x0, x0 >= 0
   plus(z, z') -{ 1 }-> plus(X1, X2) :|: X1 >= 0, z' = 1 + X2, X2 >= 0, z = X1
   plus(z, z') -{ 1 }-> plus(X1, X2) :|: X1 >= 0, z = 1 + X1, X2 >= 0, z' = X2
   plus(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   plus(z, z') -{ 0 }-> 1 + x0 + x1 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1
   s(z) -{ 1 }-> s(X) :|: z = 1 + X, X >= 0
   s(z) -{ 0 }-> 0 :|: v0 >= 0, z = v0
   s(z) -{ 0 }-> 1 + x0 :|: z = x0, x0 >= 0
   x(z, z') -{ 1 }-> x(X1, X2) :|: X1 >= 0, z = 1 + X1, X2 >= 0, z' = X2
   x(z, z') -{ 1 }-> x(X1, X2) :|: X1 >= 0, z' = 1 + X2, X2 >= 0, z = X1
   x(z, z') -{ 0 }-> 0 :|: v0 >= 0, v1 >= 0, z = v0, z' = v1
   x(z, z') -{ 0 }-> 1 + x0 + x1 :|: z = x0, x0 >= 0, x1 >= 0, z' = x1

Only complete derivations are relevant for the runtime complexity.

----------------------------------------

(25) CompletionProof (UPPER BOUND(ID))
The transformation into a RNTS is sound, since:

(a) The obligation is a constructor system where every type has a constant constructor,

(b) The following defined symbols do not have to be completely defined, as they can never occur inside other defined symbols:
none

(c) The following functions are completely defined:

   encArg_1
   encode_active_1
   encode_U11_2
   encode_tt
   encode_mark_1
   encode_U12_1
   encode_isNat_1
   encode_U21_1
   encode_U31_2
   encode_U32_1
   encode_U41_2
   encode_U51_3
   encode_U52_3
   encode_s_1
   encode_plus_2
   encode_U61_1
   encode_0
   encode_U71_3
   encode_U72_3
   encode_x_2
   isNat_1
   U72_3
   plus_2
   U12_1
   U31_2
   U32_1
   U52_3
   x_2
   U21_1
   U11_2
   s_1
   active_1
   U41_2
   U71_3
   U51_3
   U61_1
   mark_1

Due to the following rules being added:

   encArg(v0) -> null_encArg [0]
   encode_active(v0) -> null_encode_active [0]
   encode_U11(v0, v1) -> null_encode_U11 [0]
   encode_tt -> null_encode_tt [0]
   encode_mark(v0) -> null_encode_mark [0]
   encode_U12(v0) -> null_encode_U12 [0]
   encode_isNat(v0) -> null_encode_isNat [0]
   encode_U21(v0) -> null_encode_U21 [0]
   encode_U31(v0, v1) -> null_encode_U31 [0]
   encode_U32(v0) -> null_encode_U32 [0]
   encode_U41(v0, v1) -> null_encode_U41 [0]
   encode_U51(v0, v1, v2) -> null_encode_U51 [0]
   encode_U52(v0, v1, v2) -> null_encode_U52 [0]
   encode_s(v0) -> null_encode_s [0]
   encode_plus(v0, v1) -> null_encode_plus [0]
   encode_U61(v0) -> null_encode_U61 [0]
   encode_0 -> null_encode_0 [0]
   encode_U71(v0, v1, v2) -> null_encode_U71 [0]
   encode_U72(v0, v1, v2) -> null_encode_U72 [0]
   encode_x(v0, v1) -> null_encode_x [0]
   isNat(v0) -> null_isNat [0]
   U72(v0, v1, v2) -> null_U72 [0]
   plus(v0, v1) -> null_plus [0]
   U12(v0) -> null_U12 [0]
   U31(v0, v1) -> null_U31 [0]
   U32(v0) -> null_U32 [0]
   U52(v0, v1, v2) -> null_U52 [0]
   x(v0, v1) -> null_x [0]
   U21(v0) -> null_U21 [0]
   U11(v0, v1) -> null_U11 [0]
   s(v0) -> null_s [0]
   active(v0) -> null_active [0]
   U41(v0, v1) -> null_U41 [0]
   U71(v0, v1, v2) -> null_U71 [0]
   U51(v0, v1, v2) -> null_U51 [0]
   U61(v0) -> null_U61 [0]
   mark(v0) -> null_mark [0]

And the following fresh constants:    null_encArg, null_encode_active, null_encode_U11, null_encode_tt, null_encode_mark, null_encode_U12, null_encode_isNat, null_encode_U21, null_encode_U31, null_encode_U32, null_encode_U41, null_encode_U51, null_encode_U52, null_encode_s, null_encode_plus, null_encode_U61, null_encode_0, null_encode_U71, null_encode_U72, null_encode_x, null_isNat, null_U72, null_plus, null_U12, null_U31, null_U32, null_U52, null_x, null_U21, null_U11, null_s, null_active, null_U41, null_U71, null_U51, null_U61, null_mark

----------------------------------------

(26)
Obligation:
Runtime Complexity Weighted TRS where critical functions are completely defined. The underlying TRS is:

Runtime Complexity Weighted TRS with Types.
The TRS R consists of the following rules:

   mark(tt) -> active(tt) [1]
   mark(0) -> active(0) [1]
   U51(c_active(X1), X2, X3) -> U51(X1, X2, X3) [1]
   U71(X1, c_active(X2), X3) -> U71(X1, X2, X3) [1]
   U31(X1, c_active(X2)) -> U31(X1, X2) [1]
   mark(c_U31(X1, X2)) -> active(U31(mark(X1), X2)) [1]
   U72(X1, c_mark(X2), X3) -> U72(X1, X2, X3) [1]
   isNat(c_active(X)) -> isNat(X) [1]
   U71(X1, X2, c_mark(X3)) -> U71(X1, X2, X3) [1]
   U72(c_active(X1), X2, X3) -> U72(X1, X2, X3) [1]
   U32(c_active(X)) -> U32(X) [1]
   active(c_U51(tt, M, N)) -> mark(U52(isNat(N), M, N)) [1]
   U41(X1, c_active(X2)) -> U41(X1, X2) [1]
   active(c_U32(tt)) -> mark(tt) [1]
   x(c_active(X1), X2) -> x(X1, X2) [1]
   mark(c_U11(X1, X2)) -> active(U11(mark(X1), X2)) [1]
   U11(X1, c_mark(X2)) -> U11(X1, X2) [1]
   U52(c_mark(X1), X2, X3) -> U52(X1, X2, X3) [1]
   active(c_U52(tt, M, N)) -> mark(s(plus(N, M))) [1]
   active(c_U61(tt)) -> mark(0) [1]
   U71(X1, X2, c_active(X3)) -> U71(X1, X2, X3) [1]
   mark(c_x(X1, X2)) -> active(x(mark(X1), mark(X2))) [1]
   U51(X1, c_mark(X2), X3) -> U51(X1, X2, X3) [1]
   U31(c_active(X1), X2) -> U31(X1, X2) [1]
   U51(X1, c_active(X2), X3) -> U51(X1, X2, X3) [1]
   U52(c_active(X1), X2, X3) -> U52(X1, X2, X3) [1]
   U51(c_mark(X1), X2, X3) -> U51(X1, X2, X3) [1]
   active(c_U21(tt)) -> mark(tt) [1]
   active(c_isNat(c_s(V1))) -> mark(U21(isNat(V1))) [1]
   mark(c_U71(X1, X2, X3)) -> active(U71(mark(X1), X2, X3)) [1]
   U31(X1, c_mark(X2)) -> U31(X1, X2) [1]
   U61(c_active(X)) -> U61(X) [1]
   U41(c_active(X1), X2) -> U41(X1, X2) [1]
   U12(c_mark(X)) -> U12(X) [1]
   U12(c_active(X)) -> U12(X) [1]
   active(c_U12(tt)) -> mark(tt) [1]
   active(c_plus(N, 0)) -> mark(U41(isNat(N), N)) [1]
   mark(c_U21(X)) -> active(U21(mark(X))) [1]
   x(X1, c_active(X2)) -> x(X1, X2) [1]
   active(c_x(N, c_s(M))) -> mark(U71(isNat(M), M, N)) [1]
   U61(c_mark(X)) -> U61(X) [1]
   mark(c_U32(X)) -> active(U32(mark(X))) [1]
   U72(X1, X2, c_mark(X3)) -> U72(X1, X2, X3) [1]
   active(c_U71(tt, M, N)) -> mark(U72(isNat(N), M, N)) [1]
   U31(c_mark(X1), X2) -> U31(X1, X2) [1]
   isNat(c_mark(X)) -> isNat(X) [1]
   U21(c_active(X)) -> U21(X) [1]
   x(X1, c_mark(X2)) -> x(X1, X2) [1]
   active(c_isNat(0)) -> mark(tt) [1]
   U21(c_mark(X)) -> U21(X) [1]
   U52(X1, c_active(X2), X3) -> U52(X1, X2, X3) [1]
   U72(X1, X2, c_active(X3)) -> U72(X1, X2, X3) [1]
   plus(X1, c_mark(X2)) -> plus(X1, X2) [1]
   U71(c_mark(X1), X2, X3) -> U71(X1, X2, X3) [1]
   mark(c_U12(X)) -> active(U12(mark(X))) [1]
   active(c_U11(tt, V2)) -> mark(U12(isNat(V2))) [1]
   U51(X1, X2, c_active(X3)) -> U51(X1, X2, X3) [1]
   plus(c_active(X1), X2) -> plus(X1, X2) [1]
   mark(c_s(X)) -> active(s(mark(X))) [1]
   x(c_mark(X1), X2) -> x(X1, X2) [1]
   active(c_isNat(c_plus(V1, V2))) -> mark(U11(isNat(V1), V2)) [1]
   mark(c_U41(X1, X2)) -> active(U41(mark(X1), X2)) [1]
   U41(X1, c_mark(X2)) -> U41(X1, X2) [1]
   s(c_active(X)) -> s(X) [1]
   U41(c_mark(X1), X2) -> U41(X1, X2) [1]
   active(c_U31(tt, V2)) -> mark(U32(isNat(V2))) [1]
   active(c_isNat(c_x(V1, V2))) -> mark(U31(isNat(V1), V2)) [1]
   U72(X1, c_active(X2), X3) -> U72(X1, X2, X3) [1]
   mark(c_U51(X1, X2, X3)) -> active(U51(mark(X1), X2, X3)) [1]
   mark(c_U72(X1, X2, X3)) -> active(U72(mark(X1), X2, X3)) [1]
   mark(c_U61(X)) -> active(U61(mark(X))) [1]
   U72(c_mark(X1), X2, X3) -> U72(X1, X2, X3) [1]
   U52(X1, X2, c_active(X3)) -> U52(X1, X2, X3) [1]
   s(c_mark(X)) -> s(X) [1]
   U71(c_active(X1), X2, X3) -> U71(X1, X2, X3) [1]
   plus(c_mark(X1), X2) -> plus(X1, X2) [1]
   U71(X1, c_mark(X2), X3) -> U71(X1, X2, X3) [1]
   U11(c_mark(X1), X2) -> U11(X1, X2) [1]
   U11(X1, c_active(X2)) -> U11(X1, X2) [1]
   mark(c_U52(X1, X2, X3)) -> active(U52(mark(X1), X2, X3)) [1]
   U51(X1, X2, c_mark(X3)) -> U51(X1, X2, X3) [1]
   U52(X1, c_mark(X2), X3) -> U52(X1, X2, X3) [1]
   active(c_U72(tt, M, N)) -> mark(plus(x(N, M), N)) [1]
   active(c_U41(tt, N)) -> mark(N) [1]
   mark(c_isNat(X)) -> active(isNat(X)) [1]
   U32(c_mark(X)) -> U32(X) [1]
   active(c_x(N, 0)) -> mark(U61(isNat(N))) [1]
   active(c_plus(N, c_s(M))) -> mark(U51(isNat(M), M, N)) [1]
   U52(X1, X2, c_mark(X3)) -> U52(X1, X2, X3) [1]
   plus(X1, c_active(X2)) -> plus(X1, X2) [1]
   mark(c_plus(X1, X2)) -> active(plus(mark(X1), mark(X2))) [1]
   U11(c_active(X1), X2) -> U11(X1, X2) [1]
   encArg(tt) -> tt [0]
   encArg(0) -> 0 [0]
   encArg(cons_active(x_1)) -> active(encArg(x_1)) [0]
   encArg(cons_mark(x_1)) -> mark(encArg(x_1)) [0]
   encArg(cons_U11(x_1, x_2)) -> U11(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U12(x_1)) -> U12(encArg(x_1)) [0]
   encArg(cons_isNat(x_1)) -> isNat(encArg(x_1)) [0]
   encArg(cons_U21(x_1)) -> U21(encArg(x_1)) [0]
   encArg(cons_U31(x_1, x_2)) -> U31(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U32(x_1)) -> U32(encArg(x_1)) [0]
   encArg(cons_U41(x_1, x_2)) -> U41(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U51(x_1, x_2, x_3)) -> U51(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_U52(x_1, x_2, x_3)) -> U52(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_s(x_1)) -> s(encArg(x_1)) [0]
   encArg(cons_plus(x_1, x_2)) -> plus(encArg(x_1), encArg(x_2)) [0]
   encArg(cons_U61(x_1)) -> U61(encArg(x_1)) [0]
   encArg(cons_U71(x_1, x_2, x_3)) -> U71(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_U72(x_1, x_2, x_3)) -> U72(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encArg(cons_x(x_1, x_2)) -> x(encArg(x_1), encArg(x_2)) [0]
   encode_active(x_1) -> active(encArg(x_1)) [0]
   encode_U11(x_1, x_2) -> U11(encArg(x_1), encArg(x_2)) [0]
   encode_tt -> tt [0]
   encode_mark(x_1) -> mark(encArg(x_1)) [0]
   encode_U12(x_1) -> U12(encArg(x_1)) [0]
   encode_isNat(x_1) -> isNat(encArg(x_1)) [0]
   encode_U21(x_1) -> U21(encArg(x_1)) [0]
   encode_U31(x_1, x_2) -> U31(encArg(x_1), encArg(x_2)) [0]
   encode_U32(x_1) -> U32(encArg(x_1)) [0]
   encode_U41(x_1, x_2) -> U41(encArg(x_1), encArg(x_2)) [0]
   encode_U51(x_1, x_2, x_3) -> U51(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_U52(x_1, x_2, x_3) -> U52(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_s(x_1) -> s(encArg(x_1)) [0]
   encode_plus(x_1, x_2) -> plus(encArg(x_1), encArg(x_2)) [0]
   encode_U61(x_1) -> U61(encArg(x_1)) [0]
   encode_0 -> 0 [0]
   encode_U71(x_1, x_2, x_3) -> U71(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_U72(x_1, x_2, x_3) -> U72(encArg(x_1), encArg(x_2), encArg(x_3)) [0]
   encode_x(x_1, x_2) -> x(encArg(x_1), encArg(x_2)) [0]
   isNat(x0) -> c_isNat(x0) [0]
   U72(x0, x1, x2) -> c_U72(x0, x1, x2) [0]
   plus(x0, x1) -> c_plus(x0, x1) [0]
   U12(x0) -> c_U12(x0) [0]
   U31(x0, x1) -> c_U31(x0, x1) [0]
   U32(x0) -> c_U32(x0) [0]
   U52(x0, x1, x2) -> c_U52(x0, x1, x2) [0]
   x(x0, x1) -> c_x(x0, x1) [0]
   U21(x0) -> c_U21(x0) [0]
   U11(x0, x1) -> c_U11(x0, x1) [0]
   s(x0) -> c_s(x0) [0]
   active(x0) -> c_active(x0) [0]
   U41(x0, x1) -> c_U41(x0, x1) [0]
   U71(x0, x1, x2) -> c_U71(x0, x1, x2) [0]
   U51(x0, x1, x2) -> c_U51(x0, x1, x2) [0]
   U61(x0) -> c_U61(x0) [0]
   mark(x0) -> c_mark(x0) [0]
   encArg(v0) -> null_encArg [0]
   encode_active(v0) -> null_encode_active [0]
   encode_U11(v0, v1) -> null_encode_U11 [0]
   encode_tt -> null_encode_tt [0]
   encode_mark(v0) -> null_encode_mark [0]
   encode_U12(v0) -> null_encode_U12 [0]
   encode_isNat(v0) -> null_encode_isNat [0]
   encode_U21(v0) -> null_encode_U21 [0]
   encode_U31(v0, v1) -> null_encode_U31 [0]
   encode_U32(v0) -> null_encode_U32 [0]
   encode_U41(v0, v1) -> null_encode_U41 [0]
   encode_U51(v0, v1, v2) -> null_encode_U51 [0]
   encode_U52(v0, v1, v2) -> null_encode_U52 [0]
   encode_s(v0) -> null_encode_s [0]
   encode_plus(v0, v1) -> null_encode_plus [0]
   encode_U61(v0) -> null_encode_U61 [0]
   encode_0 -> null_encode_0 [0]
   encode_U71(v0, v1, v2) -> null_encode_U71 [0]
   encode_U72(v0, v1, v2) -> null_encode_U72 [0]
   encode_x(v0, v1) -> null_encode_x [0]
   isNat(v0) -> null_isNat [0]
   U72(v0, v1, v2) -> null_U72 [0]
   plus(v0, v1) -> null_plus [0]
   U12(v0) -> null_U12 [0]
   U31(v0, v1) -> null_U31 [0]
   U32(v0) -> null_U32 [0]
   U52(v0, v1, v2) -> null_U52 [0]
   x(v0, v1) -> null_x [0]
   U21(v0) -> null_U21 [0]
   U11(v0, v1) -> null_U11 [0]
   s(v0) -> null_s [0]
   active(v0) -> null_active [0]
   U41(v0, v1) -> null_U41 [0]
   U71(v0, v1, v2) -> null_U71 [0]
   U51(v0, v1, v2) -> null_U51 [0]
   U61(v0) -> null_U61 [0]
   mark(v0) -> null_mark [0]

The TRS has the following type information:
mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
tt :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
0 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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c_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
c_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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c_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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cons_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
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cons_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_tt :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_0 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
encode_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark -> tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encArg :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_tt :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_0 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_encode_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_isNat :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U72 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_plus :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U12 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U31 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U32 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U52 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_x :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U21 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U11 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_s :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_active :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U41 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U71 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U51 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_U61 :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark
null_mark :: tt:0:c_active:c_U31:c_mark:c_U51:c_U32:c_U11:c_U52:c_U61:c_x:c_U21:c_s:c_isNat:c_U71:c_U12:c_plus:c_U41:c_U72:cons_active:cons_mark:cons_U11:cons_U12:cons_isNat:cons_U21:cons_U31:cons_U32:cons_U41:cons_U51:cons_U52:cons_s:cons_plus:cons_U61:cons_U71:cons_U72:cons_x:null_encArg:null_encode_active:null_encode_U11:null_encode_tt:null_encode_mark:null_encode_U12:null_encode_isNat:null_encode_U21:null_encode_U31:null_encode_U32:null_encode_U41:null_encode_U51:null_encode_U52:null_encode_s:null_encode_plus:null_encode_U61:null_encode_0:null_encode_U71:null_encode_U72:null_encode_x:null_isNat:null_U72:null_plus:null_U12:null_U31:null_U32:null_U52:null_x:null_U21:null_U11:null_s:null_active:null_U41:null_U71:null_U51:null_U61:null_mark

Rewrite Strategy: INNERMOST
----------------------------------------

(27) CpxTrsToCdtProof (UPPER BOUND(ID))
Converted Cpx (relative) TRS to CDT
----------------------------------------

(28)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   encode_active(z0) -> active(encArg(z0))
   encode_U11(z0, z1) -> U11(encArg(z0), encArg(z1))
   encode_tt -> tt
   encode_mark(z0) -> mark(encArg(z0))
   encode_U12(z0) -> U12(encArg(z0))
   encode_isNat(z0) -> isNat(encArg(z0))
   encode_U21(z0) -> U21(encArg(z0))
   encode_U31(z0, z1) -> U31(encArg(z0), encArg(z1))
   encode_U32(z0) -> U32(encArg(z0))
   encode_U41(z0, z1) -> U41(encArg(z0), encArg(z1))
   encode_U51(z0, z1, z2) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encode_U52(z0, z1, z2) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encode_s(z0) -> s(encArg(z0))
   encode_plus(z0, z1) -> plus(encArg(z0), encArg(z1))
   encode_U61(z0) -> U61(encArg(z0))
   encode_0 -> 0
   encode_U71(z0, z1, z2) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encode_U72(z0, z1, z2) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encode_x(z0, z1) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(tt) -> c
   ENCARG(0) -> c1
   ENCARG(cons_active(z0)) -> c2(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_ACTIVE(z0) -> c19(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCODE_U11(z0, z1) -> c20(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_TT -> c21
   ENCODE_MARK(z0) -> c22(MARK(encArg(z0)), ENCARG(z0))
   ENCODE_U12(z0) -> c23(U12'(encArg(z0)), ENCARG(z0))
   ENCODE_ISNAT(z0) -> c24(ISNAT(encArg(z0)), ENCARG(z0))
   ENCODE_U21(z0) -> c25(U21'(encArg(z0)), ENCARG(z0))
   ENCODE_U31(z0, z1) -> c26(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U32(z0) -> c27(U32'(encArg(z0)), ENCARG(z0))
   ENCODE_U41(z0, z1) -> c28(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U51(z0, z1, z2) -> c29(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_U52(z0, z1, z2) -> c30(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_S(z0) -> c31(S(encArg(z0)), ENCARG(z0))
   ENCODE_PLUS(z0, z1) -> c32(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U61(z0) -> c33(U61'(encArg(z0)), ENCARG(z0))
   ENCODE_0 -> c34
   ENCODE_U71(z0, z1, z2) -> c35(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_U72(z0, z1, z2) -> c36(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_X(z0, z1) -> c37(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), U12'(isNat(z0)), ISNAT(z0))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), U32'(isNat(z0)), ISNAT(z0))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), S(plus(z1, z0)), PLUS(z1, z0))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), PLUS(x(z1, z0), z1), X(z1, z0))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), U21'(isNat(z0)), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), U41'(isNat(z0), z0), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), U61'(isNat(z0)), ISNAT(z0))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(tt) -> c58(ACTIVE(tt))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(0) -> c70(ACTIVE(0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
S tuples:
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), U12'(isNat(z0)), ISNAT(z0))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), U32'(isNat(z0)), ISNAT(z0))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), S(plus(z1, z0)), PLUS(z1, z0))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), PLUS(x(z1, z0), z1), X(z1, z0))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), U21'(isNat(z0)), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), U41'(isNat(z0), z0), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), U61'(isNat(z0)), ISNAT(z0))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(tt) -> c58(ACTIVE(tt))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(0) -> c70(ACTIVE(0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
K tuples:none
Defined Rule Symbols:   active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2, encArg_1, encode_active_1, encode_U11_2, encode_tt, encode_mark_1, encode_U12_1, encode_isNat_1, encode_U21_1, encode_U31_2, encode_U32_1, encode_U41_2, encode_U51_3, encode_U52_3, encode_s_1, encode_plus_2, encode_U61_1, encode_0, encode_U71_3, encode_U72_3, encode_x_2

Defined Pair Symbols:   ENCARG_1, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_TT, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_0, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2

Compound Symbols:   c, c1, c2_2, c3_2, c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c19_2, c20_3, c21, c22_2, c23_2, c24_2, c25_2, c26_3, c27_2, c28_3, c29_4, c30_4, c31_2, c32_3, c33_2, c34, c35_4, c36_4, c37_3, c38_3, c39_1, c40_1, c41_3, c42_1, c43_1, c44_3, c45_3, c46_1, c47_3, c48_3, c49_1, c50_3, c51_3, c52_3, c53_3, c54_3, c55_3, c56_3, c57_3, c58_1, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c70_1, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1


----------------------------------------

(29) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing nodes:
   ENCODE_0 -> c34
   ENCODE_TT -> c21
   ENCARG(tt) -> c
   ENCARG(0) -> c1

----------------------------------------

(30)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   encode_active(z0) -> active(encArg(z0))
   encode_U11(z0, z1) -> U11(encArg(z0), encArg(z1))
   encode_tt -> tt
   encode_mark(z0) -> mark(encArg(z0))
   encode_U12(z0) -> U12(encArg(z0))
   encode_isNat(z0) -> isNat(encArg(z0))
   encode_U21(z0) -> U21(encArg(z0))
   encode_U31(z0, z1) -> U31(encArg(z0), encArg(z1))
   encode_U32(z0) -> U32(encArg(z0))
   encode_U41(z0, z1) -> U41(encArg(z0), encArg(z1))
   encode_U51(z0, z1, z2) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encode_U52(z0, z1, z2) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encode_s(z0) -> s(encArg(z0))
   encode_plus(z0, z1) -> plus(encArg(z0), encArg(z1))
   encode_U61(z0) -> U61(encArg(z0))
   encode_0 -> 0
   encode_U71(z0, z1, z2) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encode_U72(z0, z1, z2) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encode_x(z0, z1) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_active(z0)) -> c2(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_ACTIVE(z0) -> c19(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCODE_U11(z0, z1) -> c20(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_MARK(z0) -> c22(MARK(encArg(z0)), ENCARG(z0))
   ENCODE_U12(z0) -> c23(U12'(encArg(z0)), ENCARG(z0))
   ENCODE_ISNAT(z0) -> c24(ISNAT(encArg(z0)), ENCARG(z0))
   ENCODE_U21(z0) -> c25(U21'(encArg(z0)), ENCARG(z0))
   ENCODE_U31(z0, z1) -> c26(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U32(z0) -> c27(U32'(encArg(z0)), ENCARG(z0))
   ENCODE_U41(z0, z1) -> c28(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U51(z0, z1, z2) -> c29(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_U52(z0, z1, z2) -> c30(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_S(z0) -> c31(S(encArg(z0)), ENCARG(z0))
   ENCODE_PLUS(z0, z1) -> c32(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U61(z0) -> c33(U61'(encArg(z0)), ENCARG(z0))
   ENCODE_U71(z0, z1, z2) -> c35(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_U72(z0, z1, z2) -> c36(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_X(z0, z1) -> c37(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), U12'(isNat(z0)), ISNAT(z0))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), U32'(isNat(z0)), ISNAT(z0))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), S(plus(z1, z0)), PLUS(z1, z0))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), PLUS(x(z1, z0), z1), X(z1, z0))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), U21'(isNat(z0)), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), U41'(isNat(z0), z0), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), U61'(isNat(z0)), ISNAT(z0))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(tt) -> c58(ACTIVE(tt))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(0) -> c70(ACTIVE(0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
S tuples:
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), U12'(isNat(z0)), ISNAT(z0))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), U32'(isNat(z0)), ISNAT(z0))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), S(plus(z1, z0)), PLUS(z1, z0))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), PLUS(x(z1, z0), z1), X(z1, z0))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), U21'(isNat(z0)), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), U41'(isNat(z0), z0), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), U61'(isNat(z0)), ISNAT(z0))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(tt) -> c58(ACTIVE(tt))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(0) -> c70(ACTIVE(0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
K tuples:none
Defined Rule Symbols:   active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2, encArg_1, encode_active_1, encode_U11_2, encode_tt, encode_mark_1, encode_U12_1, encode_isNat_1, encode_U21_1, encode_U31_2, encode_U32_1, encode_U41_2, encode_U51_3, encode_U52_3, encode_s_1, encode_plus_2, encode_U61_1, encode_0, encode_U71_3, encode_U72_3, encode_x_2

Defined Pair Symbols:   ENCARG_1, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2

Compound Symbols:   c2_2, c3_2, c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c19_2, c20_3, c22_2, c23_2, c24_2, c25_2, c26_3, c27_2, c28_3, c29_4, c30_4, c31_2, c32_3, c33_2, c35_4, c36_4, c37_3, c38_3, c39_1, c40_1, c41_3, c42_1, c43_1, c44_3, c45_3, c46_1, c47_3, c48_3, c49_1, c50_3, c51_3, c52_3, c53_3, c54_3, c55_3, c56_3, c57_3, c58_1, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c70_1, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1


----------------------------------------

(31) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 9 trailing tuple parts
----------------------------------------

(32)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   encode_active(z0) -> active(encArg(z0))
   encode_U11(z0, z1) -> U11(encArg(z0), encArg(z1))
   encode_tt -> tt
   encode_mark(z0) -> mark(encArg(z0))
   encode_U12(z0) -> U12(encArg(z0))
   encode_isNat(z0) -> isNat(encArg(z0))
   encode_U21(z0) -> U21(encArg(z0))
   encode_U31(z0, z1) -> U31(encArg(z0), encArg(z1))
   encode_U32(z0) -> U32(encArg(z0))
   encode_U41(z0, z1) -> U41(encArg(z0), encArg(z1))
   encode_U51(z0, z1, z2) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encode_U52(z0, z1, z2) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encode_s(z0) -> s(encArg(z0))
   encode_plus(z0, z1) -> plus(encArg(z0), encArg(z1))
   encode_U61(z0) -> U61(encArg(z0))
   encode_0 -> 0
   encode_U71(z0, z1, z2) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encode_U72(z0, z1, z2) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encode_x(z0, z1) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_active(z0)) -> c2(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_ACTIVE(z0) -> c19(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCODE_U11(z0, z1) -> c20(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_MARK(z0) -> c22(MARK(encArg(z0)), ENCARG(z0))
   ENCODE_U12(z0) -> c23(U12'(encArg(z0)), ENCARG(z0))
   ENCODE_ISNAT(z0) -> c24(ISNAT(encArg(z0)), ENCARG(z0))
   ENCODE_U21(z0) -> c25(U21'(encArg(z0)), ENCARG(z0))
   ENCODE_U31(z0, z1) -> c26(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U32(z0) -> c27(U32'(encArg(z0)), ENCARG(z0))
   ENCODE_U41(z0, z1) -> c28(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U51(z0, z1, z2) -> c29(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_U52(z0, z1, z2) -> c30(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_S(z0) -> c31(S(encArg(z0)), ENCARG(z0))
   ENCODE_PLUS(z0, z1) -> c32(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCODE_U61(z0) -> c33(U61'(encArg(z0)), ENCARG(z0))
   ENCODE_U71(z0, z1, z2) -> c35(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_U72(z0, z1, z2) -> c36(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCODE_X(z0, z1) -> c37(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2, encArg_1, encode_active_1, encode_U11_2, encode_tt, encode_mark_1, encode_U12_1, encode_isNat_1, encode_U21_1, encode_U31_2, encode_U32_1, encode_U41_2, encode_U51_3, encode_U52_3, encode_s_1, encode_plus_2, encode_U61_1, encode_0, encode_U71_3, encode_U72_3, encode_x_2

Defined Pair Symbols:   ENCARG_1, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2

Compound Symbols:   c2_2, c3_2, c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c19_2, c20_3, c22_2, c23_2, c24_2, c25_2, c26_3, c27_2, c28_3, c29_4, c30_4, c31_2, c32_3, c33_2, c35_4, c36_4, c37_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70


----------------------------------------

(33) CdtGraphSplitRhsProof (BOTH BOUNDS(ID, ID))
Split RHS of tuples not part of any SCC
----------------------------------------

(34)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   encode_active(z0) -> active(encArg(z0))
   encode_U11(z0, z1) -> U11(encArg(z0), encArg(z1))
   encode_tt -> tt
   encode_mark(z0) -> mark(encArg(z0))
   encode_U12(z0) -> U12(encArg(z0))
   encode_isNat(z0) -> isNat(encArg(z0))
   encode_U21(z0) -> U21(encArg(z0))
   encode_U31(z0, z1) -> U31(encArg(z0), encArg(z1))
   encode_U32(z0) -> U32(encArg(z0))
   encode_U41(z0, z1) -> U41(encArg(z0), encArg(z1))
   encode_U51(z0, z1, z2) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encode_U52(z0, z1, z2) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encode_s(z0) -> s(encArg(z0))
   encode_plus(z0, z1) -> plus(encArg(z0), encArg(z1))
   encode_U61(z0) -> U61(encArg(z0))
   encode_0 -> 0
   encode_U71(z0, z1, z2) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encode_U72(z0, z1, z2) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encode_x(z0, z1) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_active(z0)) -> c2(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_ACTIVE(z0) -> c(ENCARG(z0))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_U11(z0, z1) -> c(ENCARG(z0))
   ENCODE_U11(z0, z1) -> c(ENCARG(z1))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_MARK(z0) -> c(ENCARG(z0))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_U12(z0) -> c(ENCARG(z0))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ENCARG(z0))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U21(z0) -> c(ENCARG(z0))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U31(z0, z1) -> c(ENCARG(z0))
   ENCODE_U31(z0, z1) -> c(ENCARG(z1))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U32(z0) -> c(ENCARG(z0))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U41(z0, z1) -> c(ENCARG(z0))
   ENCODE_U41(z0, z1) -> c(ENCARG(z1))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U51(z0, z1, z2) -> c(ENCARG(z0))
   ENCODE_U51(z0, z1, z2) -> c(ENCARG(z1))
   ENCODE_U51(z0, z1, z2) -> c(ENCARG(z2))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(ENCARG(z0))
   ENCODE_U52(z0, z1, z2) -> c(ENCARG(z1))
   ENCODE_U52(z0, z1, z2) -> c(ENCARG(z2))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_S(z0) -> c(ENCARG(z0))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_PLUS(z0, z1) -> c(ENCARG(z0))
   ENCODE_PLUS(z0, z1) -> c(ENCARG(z1))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U61(z0) -> c(ENCARG(z0))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U71(z0, z1, z2) -> c(ENCARG(z0))
   ENCODE_U71(z0, z1, z2) -> c(ENCARG(z1))
   ENCODE_U71(z0, z1, z2) -> c(ENCARG(z2))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(ENCARG(z0))
   ENCODE_U72(z0, z1, z2) -> c(ENCARG(z1))
   ENCODE_U72(z0, z1, z2) -> c(ENCARG(z2))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCODE_X(z0, z1) -> c(ENCARG(z0))
   ENCODE_X(z0, z1) -> c(ENCARG(z1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2, encArg_1, encode_active_1, encode_U11_2, encode_tt, encode_mark_1, encode_U12_1, encode_isNat_1, encode_U21_1, encode_U31_2, encode_U32_1, encode_U41_2, encode_U51_3, encode_U52_3, encode_s_1, encode_plus_2, encode_U61_1, encode_0, encode_U71_3, encode_U72_3, encode_x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c2_2, c3_2, c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1


----------------------------------------

(35) CdtLeafRemovalProof (ComplexityIfPolyImplication)
Removed 30 leading nodes:
   ENCODE_ACTIVE(z0) -> c(ENCARG(z0))
   ENCODE_U11(z0, z1) -> c(ENCARG(z0))
   ENCODE_U11(z0, z1) -> c(ENCARG(z1))
   ENCODE_MARK(z0) -> c(ENCARG(z0))
   ENCODE_U12(z0) -> c(ENCARG(z0))
   ENCODE_ISNAT(z0) -> c(ENCARG(z0))
   ENCODE_U21(z0) -> c(ENCARG(z0))
   ENCODE_U31(z0, z1) -> c(ENCARG(z0))
   ENCODE_U31(z0, z1) -> c(ENCARG(z1))
   ENCODE_U32(z0) -> c(ENCARG(z0))
   ENCODE_U41(z0, z1) -> c(ENCARG(z0))
   ENCODE_U41(z0, z1) -> c(ENCARG(z1))
   ENCODE_U51(z0, z1, z2) -> c(ENCARG(z0))
   ENCODE_U51(z0, z1, z2) -> c(ENCARG(z1))
   ENCODE_U51(z0, z1, z2) -> c(ENCARG(z2))
   ENCODE_U52(z0, z1, z2) -> c(ENCARG(z0))
   ENCODE_U52(z0, z1, z2) -> c(ENCARG(z1))
   ENCODE_U52(z0, z1, z2) -> c(ENCARG(z2))
   ENCODE_S(z0) -> c(ENCARG(z0))
   ENCODE_PLUS(z0, z1) -> c(ENCARG(z0))
   ENCODE_PLUS(z0, z1) -> c(ENCARG(z1))
   ENCODE_U61(z0) -> c(ENCARG(z0))
   ENCODE_U71(z0, z1, z2) -> c(ENCARG(z0))
   ENCODE_U71(z0, z1, z2) -> c(ENCARG(z1))
   ENCODE_U71(z0, z1, z2) -> c(ENCARG(z2))
   ENCODE_U72(z0, z1, z2) -> c(ENCARG(z0))
   ENCODE_U72(z0, z1, z2) -> c(ENCARG(z1))
   ENCODE_U72(z0, z1, z2) -> c(ENCARG(z2))
   ENCODE_X(z0, z1) -> c(ENCARG(z0))
   ENCODE_X(z0, z1) -> c(ENCARG(z1))

----------------------------------------

(36)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   encode_active(z0) -> active(encArg(z0))
   encode_U11(z0, z1) -> U11(encArg(z0), encArg(z1))
   encode_tt -> tt
   encode_mark(z0) -> mark(encArg(z0))
   encode_U12(z0) -> U12(encArg(z0))
   encode_isNat(z0) -> isNat(encArg(z0))
   encode_U21(z0) -> U21(encArg(z0))
   encode_U31(z0, z1) -> U31(encArg(z0), encArg(z1))
   encode_U32(z0) -> U32(encArg(z0))
   encode_U41(z0, z1) -> U41(encArg(z0), encArg(z1))
   encode_U51(z0, z1, z2) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encode_U52(z0, z1, z2) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encode_s(z0) -> s(encArg(z0))
   encode_plus(z0, z1) -> plus(encArg(z0), encArg(z1))
   encode_U61(z0) -> U61(encArg(z0))
   encode_0 -> 0
   encode_U71(z0, z1, z2) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encode_U72(z0, z1, z2) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encode_x(z0, z1) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_active(z0)) -> c2(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2, encArg_1, encode_active_1, encode_U11_2, encode_tt, encode_mark_1, encode_U12_1, encode_isNat_1, encode_U21_1, encode_U31_2, encode_U32_1, encode_U41_2, encode_U51_3, encode_U52_3, encode_s_1, encode_plus_2, encode_U61_1, encode_0, encode_U71_3, encode_U72_3, encode_x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c2_2, c3_2, c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1


----------------------------------------

(37) CdtUsableRulesProof (BOTH BOUNDS(ID, ID))
The following rules are not usable and were removed:
   encode_active(z0) -> active(encArg(z0))
   encode_U11(z0, z1) -> U11(encArg(z0), encArg(z1))
   encode_tt -> tt
   encode_mark(z0) -> mark(encArg(z0))
   encode_U12(z0) -> U12(encArg(z0))
   encode_isNat(z0) -> isNat(encArg(z0))
   encode_U21(z0) -> U21(encArg(z0))
   encode_U31(z0, z1) -> U31(encArg(z0), encArg(z1))
   encode_U32(z0) -> U32(encArg(z0))
   encode_U41(z0, z1) -> U41(encArg(z0), encArg(z1))
   encode_U51(z0, z1, z2) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encode_U52(z0, z1, z2) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encode_s(z0) -> s(encArg(z0))
   encode_plus(z0, z1) -> plus(encArg(z0), encArg(z1))
   encode_U61(z0) -> U61(encArg(z0))
   encode_0 -> 0
   encode_U71(z0, z1, z2) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encode_U72(z0, z1, z2) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encode_x(z0, z1) -> x(encArg(z0), encArg(z1))

----------------------------------------

(38)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_active(z0)) -> c2(ACTIVE(encArg(z0)), ENCARG(z0))
   ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c2_2, c3_2, c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1


----------------------------------------

(39) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_active(z0)) -> c2(ACTIVE(encArg(z0)), ENCARG(z0)) by 
   ENCARG(cons_active(tt)) -> c2(ACTIVE(tt), ENCARG(tt))
   ENCARG(cons_active(0)) -> c2(ACTIVE(0), ENCARG(0))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))

----------------------------------------

(40)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(tt)) -> c2(ACTIVE(tt), ENCARG(tt))
   ENCARG(cons_active(0)) -> c2(ACTIVE(0), ENCARG(0))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c3_2, c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2


----------------------------------------

(41) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   ENCARG(cons_active(0)) -> c2(ACTIVE(0), ENCARG(0))
   ENCARG(cons_active(tt)) -> c2(ACTIVE(tt), ENCARG(tt))

----------------------------------------

(42)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c3_2, c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2


----------------------------------------

(43) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_mark(z0)) -> c3(MARK(encArg(z0)), ENCARG(z0)) by 
   ENCARG(cons_mark(tt)) -> c3(MARK(tt), ENCARG(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0), ENCARG(0))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))

----------------------------------------

(44)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt), ENCARG(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0), ENCARG(0))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2


----------------------------------------

(45) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(46)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c4_3, c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1


----------------------------------------

(47) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U11(z0, z1)) -> c4(U11'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1)) by 
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))

----------------------------------------

(48)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3


----------------------------------------

(49) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(50)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c5_2, c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2


----------------------------------------

(51) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U12(z0)) -> c5(U12'(encArg(z0)), ENCARG(z0)) by 
   ENCARG(cons_U12(tt)) -> c5(U12'(tt), ENCARG(tt))
   ENCARG(cons_U12(0)) -> c5(U12'(0), ENCARG(0))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))

----------------------------------------

(52)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(tt)) -> c5(U12'(tt), ENCARG(tt))
   ENCARG(cons_U12(0)) -> c5(U12'(0), ENCARG(0))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2


----------------------------------------

(53) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   ENCARG(cons_U12(tt)) -> c5(U12'(tt), ENCARG(tt))
   ENCARG(cons_U12(0)) -> c5(U12'(0), ENCARG(0))

----------------------------------------

(54)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c6_2, c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2


----------------------------------------

(55) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_isNat(z0)) -> c6(ISNAT(encArg(z0)), ENCARG(z0)) by 
   ENCARG(cons_isNat(tt)) -> c6(ISNAT(tt), ENCARG(tt))
   ENCARG(cons_isNat(0)) -> c6(ISNAT(0), ENCARG(0))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))

----------------------------------------

(56)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(tt)) -> c6(ISNAT(tt), ENCARG(tt))
   ENCARG(cons_isNat(0)) -> c6(ISNAT(0), ENCARG(0))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2


----------------------------------------

(57) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   ENCARG(cons_isNat(0)) -> c6(ISNAT(0), ENCARG(0))
   ENCARG(cons_isNat(tt)) -> c6(ISNAT(tt), ENCARG(tt))

----------------------------------------

(58)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c7_2, c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2


----------------------------------------

(59) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U21(z0)) -> c7(U21'(encArg(z0)), ENCARG(z0)) by 
   ENCARG(cons_U21(tt)) -> c7(U21'(tt), ENCARG(tt))
   ENCARG(cons_U21(0)) -> c7(U21'(0), ENCARG(0))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))

----------------------------------------

(60)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(tt)) -> c7(U21'(tt), ENCARG(tt))
   ENCARG(cons_U21(0)) -> c7(U21'(0), ENCARG(0))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2


----------------------------------------

(61) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   ENCARG(cons_U21(tt)) -> c7(U21'(tt), ENCARG(tt))
   ENCARG(cons_U21(0)) -> c7(U21'(0), ENCARG(0))

----------------------------------------

(62)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c8_3, c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2


----------------------------------------

(63) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U31(z0, z1)) -> c8(U31'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1)) by 
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))

----------------------------------------

(64)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3


----------------------------------------

(65) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(66)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c9_2, c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2


----------------------------------------

(67) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U32(z0)) -> c9(U32'(encArg(z0)), ENCARG(z0)) by 
   ENCARG(cons_U32(tt)) -> c9(U32'(tt), ENCARG(tt))
   ENCARG(cons_U32(0)) -> c9(U32'(0), ENCARG(0))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))

----------------------------------------

(68)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(tt)) -> c9(U32'(tt), ENCARG(tt))
   ENCARG(cons_U32(0)) -> c9(U32'(0), ENCARG(0))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2


----------------------------------------

(69) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   ENCARG(cons_U32(0)) -> c9(U32'(0), ENCARG(0))
   ENCARG(cons_U32(tt)) -> c9(U32'(tt), ENCARG(tt))

----------------------------------------

(70)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c10_3, c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2


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(71) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U41(z0, z1)) -> c10(U41'(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1)) by 
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))

----------------------------------------

(72)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3


----------------------------------------

(73) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(74)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c11_4, c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2


----------------------------------------

(75) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U51(z0, z1, z2)) -> c11(U51'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2)) by 
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1), ENCARG(tt))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1), ENCARG(0))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(tt), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(0), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(tt), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(0), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))

----------------------------------------

(76)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1), ENCARG(tt))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1), ENCARG(0))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(tt), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(0), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(tt), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(0), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4


----------------------------------------

(77) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 6 trailing tuple parts
----------------------------------------

(78)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c12_4, c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3


----------------------------------------

(79) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U52(z0, z1, z2)) -> c12(U52'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2)) by 
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1), ENCARG(tt))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1), ENCARG(0))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(tt), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(0), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(tt), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(0), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))

----------------------------------------

(80)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1), ENCARG(tt))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1), ENCARG(0))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(tt), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(0), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(tt), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(0), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4


----------------------------------------

(81) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 6 trailing tuple parts
----------------------------------------

(82)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0))
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c13_2, c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3


----------------------------------------

(83) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_s(z0)) -> c13(S(encArg(z0)), ENCARG(z0)) by 
   ENCARG(cons_s(tt)) -> c13(S(tt), ENCARG(tt))
   ENCARG(cons_s(0)) -> c13(S(0), ENCARG(0))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))

----------------------------------------

(84)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(tt)) -> c13(S(tt), ENCARG(tt))
   ENCARG(cons_s(0)) -> c13(S(0), ENCARG(0))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2


----------------------------------------

(85) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   ENCARG(cons_s(0)) -> c13(S(0), ENCARG(0))
   ENCARG(cons_s(tt)) -> c13(S(tt), ENCARG(tt))

----------------------------------------

(86)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c14_3, c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2


----------------------------------------

(87) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_plus(z0, z1)) -> c14(PLUS(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1)) by 
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))

----------------------------------------

(88)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3


----------------------------------------

(89) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(90)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0))
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c15_2, c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2


----------------------------------------

(91) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U61(z0)) -> c15(U61'(encArg(z0)), ENCARG(z0)) by 
   ENCARG(cons_U61(tt)) -> c15(U61'(tt), ENCARG(tt))
   ENCARG(cons_U61(0)) -> c15(U61'(0), ENCARG(0))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))

----------------------------------------

(92)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(tt)) -> c15(U61'(tt), ENCARG(tt))
   ENCARG(cons_U61(0)) -> c15(U61'(0), ENCARG(0))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2


----------------------------------------

(93) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing nodes:
   ENCARG(cons_U61(0)) -> c15(U61'(0), ENCARG(0))
   ENCARG(cons_U61(tt)) -> c15(U61'(tt), ENCARG(tt))

----------------------------------------

(94)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c16_4, c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2


----------------------------------------

(95) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U71(z0, z1, z2)) -> c16(U71'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2)) by 
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1), ENCARG(tt))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1), ENCARG(0))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(tt), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(0), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(tt), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(0), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))

----------------------------------------

(96)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1), ENCARG(tt))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1), ENCARG(0))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(tt), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(0), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(tt), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(0), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4


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(97) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 6 trailing tuple parts
----------------------------------------

(98)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2))
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c17_4, c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3


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(99) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_U72(z0, z1, z2)) -> c17(U72'(encArg(z0), encArg(z1), encArg(z2)), ENCARG(z0), ENCARG(z1), ENCARG(z2)) by 
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1), ENCARG(tt))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1), ENCARG(0))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(tt), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(0), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(tt), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(0), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))

----------------------------------------

(100)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1), ENCARG(tt))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1), ENCARG(0))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(tt), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(0), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(tt), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(0), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4


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(101) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 6 trailing tuple parts
----------------------------------------

(102)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1))
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ENCARG_1, ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2

Compound Symbols:   c18_3, c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3


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(103) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace ENCARG(cons_x(z0, z1)) -> c18(X(encArg(z0), encArg(z1)), ENCARG(z0), ENCARG(z1)) by 
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))

----------------------------------------

(104)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0), ENCARG(tt))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0), ENCARG(0))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(tt), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(0), ENCARG(x1))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3


----------------------------------------

(105) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 4 trailing tuple parts
----------------------------------------

(106)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c57_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2


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(107) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U11(z0, z1)) -> c57(ACTIVE(U11(mark(z0), z1)), U11'(mark(z0), z1), MARK(z0)) by 
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))

----------------------------------------

(108)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c59_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1


----------------------------------------

(109) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U12(z0)) -> c59(ACTIVE(U12(mark(z0))), U12'(mark(z0)), MARK(z0)) by 
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))

----------------------------------------

(110)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c61_3, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3


----------------------------------------

(111) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U21(z0)) -> c61(ACTIVE(U21(mark(z0))), U21'(mark(z0)), MARK(z0)) by 
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))

----------------------------------------

(112)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c62_3, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3


----------------------------------------

(113) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U31(z0, z1)) -> c62(ACTIVE(U31(mark(z0), z1)), U31'(mark(z0), z1), MARK(z0)) by 
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))

----------------------------------------

(114)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c63_3, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3, c62_3, c62_1


----------------------------------------

(115) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U32(z0)) -> c63(ACTIVE(U32(mark(z0))), U32'(mark(z0)), MARK(z0)) by 
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))

----------------------------------------

(116)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c64_3, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3, c62_3, c62_1, c63_3


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(117) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U41(z0, z1)) -> c64(ACTIVE(U41(mark(z0), z1)), U41'(mark(z0), z1), MARK(z0)) by 
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))

----------------------------------------

(118)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c65_3, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3, c62_3, c62_1, c63_3, c64_3, c64_1


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(119) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(mark(z0), z1, z2)), U51'(mark(z0), z1, z2), MARK(z0)) by 
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))

----------------------------------------

(120)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c66_3, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3, c62_3, c62_1, c63_3, c64_3, c64_1, c65_3, c65_1


----------------------------------------

(121) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(mark(z0), z1, z2)), U52'(mark(z0), z1, z2), MARK(z0)) by 
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))

----------------------------------------

(122)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c67_3, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3, c62_3, c62_1, c63_3, c64_3, c64_1, c65_3, c65_1, c66_3, c66_1


----------------------------------------

(123) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(s(z0)) -> c67(ACTIVE(s(mark(z0))), S(mark(z0)), MARK(z0)) by 
   MARK(s(z0)) -> c67(ACTIVE(s(z0)), S(mark(z0)), MARK(z0))
   MARK(s(U11(z0, z1))) -> c67(ACTIVE(s(active(U11(mark(z0), z1)))), S(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(s(tt)) -> c67(ACTIVE(s(active(tt))), S(mark(tt)), MARK(tt))
   MARK(s(U12(z0))) -> c67(ACTIVE(s(active(U12(mark(z0))))), S(mark(U12(z0))), MARK(U12(z0)))
   MARK(s(isNat(z0))) -> c67(ACTIVE(s(active(isNat(z0)))), S(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(s(U21(z0))) -> c67(ACTIVE(s(active(U21(mark(z0))))), S(mark(U21(z0))), MARK(U21(z0)))
   MARK(s(U31(z0, z1))) -> c67(ACTIVE(s(active(U31(mark(z0), z1)))), S(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(s(U32(z0))) -> c67(ACTIVE(s(active(U32(mark(z0))))), S(mark(U32(z0))), MARK(U32(z0)))
   MARK(s(U41(z0, z1))) -> c67(ACTIVE(s(active(U41(mark(z0), z1)))), S(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(s(U51(z0, z1, z2))) -> c67(ACTIVE(s(active(U51(mark(z0), z1, z2)))), S(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(s(U52(z0, z1, z2))) -> c67(ACTIVE(s(active(U52(mark(z0), z1, z2)))), S(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(s(s(z0))) -> c67(ACTIVE(s(active(s(mark(z0))))), S(mark(s(z0))), MARK(s(z0)))
   MARK(s(plus(z0, z1))) -> c67(ACTIVE(s(active(plus(mark(z0), mark(z1))))), S(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(s(U61(z0))) -> c67(ACTIVE(s(active(U61(mark(z0))))), S(mark(U61(z0))), MARK(U61(z0)))
   MARK(s(0)) -> c67(ACTIVE(s(active(0))), S(mark(0)), MARK(0))
   MARK(s(U71(z0, z1, z2))) -> c67(ACTIVE(s(active(U71(mark(z0), z1, z2)))), S(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(s(U72(z0, z1, z2))) -> c67(ACTIVE(s(active(U72(mark(z0), z1, z2)))), S(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(s(x(z0, z1))) -> c67(ACTIVE(s(active(x(mark(z0), mark(z1))))), S(mark(x(z0, z1))), MARK(x(z0, z1)))

----------------------------------------

(124)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))
   MARK(s(z0)) -> c67(ACTIVE(s(z0)), S(mark(z0)), MARK(z0))
   MARK(s(U11(z0, z1))) -> c67(ACTIVE(s(active(U11(mark(z0), z1)))), S(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(s(tt)) -> c67(ACTIVE(s(active(tt))), S(mark(tt)), MARK(tt))
   MARK(s(U12(z0))) -> c67(ACTIVE(s(active(U12(mark(z0))))), S(mark(U12(z0))), MARK(U12(z0)))
   MARK(s(isNat(z0))) -> c67(ACTIVE(s(active(isNat(z0)))), S(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(s(U21(z0))) -> c67(ACTIVE(s(active(U21(mark(z0))))), S(mark(U21(z0))), MARK(U21(z0)))
   MARK(s(U31(z0, z1))) -> c67(ACTIVE(s(active(U31(mark(z0), z1)))), S(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(s(U32(z0))) -> c67(ACTIVE(s(active(U32(mark(z0))))), S(mark(U32(z0))), MARK(U32(z0)))
   MARK(s(U41(z0, z1))) -> c67(ACTIVE(s(active(U41(mark(z0), z1)))), S(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(s(U51(z0, z1, z2))) -> c67(ACTIVE(s(active(U51(mark(z0), z1, z2)))), S(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(s(U52(z0, z1, z2))) -> c67(ACTIVE(s(active(U52(mark(z0), z1, z2)))), S(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(s(s(z0))) -> c67(ACTIVE(s(active(s(mark(z0))))), S(mark(s(z0))), MARK(s(z0)))
   MARK(s(plus(z0, z1))) -> c67(ACTIVE(s(active(plus(mark(z0), mark(z1))))), S(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(s(U61(z0))) -> c67(ACTIVE(s(active(U61(mark(z0))))), S(mark(U61(z0))), MARK(U61(z0)))
   MARK(s(0)) -> c67(ACTIVE(s(active(0))), S(mark(0)), MARK(0))
   MARK(s(U71(z0, z1, z2))) -> c67(ACTIVE(s(active(U71(mark(z0), z1, z2)))), S(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(s(U72(z0, z1, z2))) -> c67(ACTIVE(s(active(U72(mark(z0), z1, z2)))), S(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(s(x(z0, z1))) -> c67(ACTIVE(s(active(x(mark(z0), mark(z1))))), S(mark(x(z0, z1))), MARK(x(z0, z1)))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))
   MARK(s(z0)) -> c67(ACTIVE(s(z0)), S(mark(z0)), MARK(z0))
   MARK(s(U11(z0, z1))) -> c67(ACTIVE(s(active(U11(mark(z0), z1)))), S(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(s(tt)) -> c67(ACTIVE(s(active(tt))), S(mark(tt)), MARK(tt))
   MARK(s(U12(z0))) -> c67(ACTIVE(s(active(U12(mark(z0))))), S(mark(U12(z0))), MARK(U12(z0)))
   MARK(s(isNat(z0))) -> c67(ACTIVE(s(active(isNat(z0)))), S(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(s(U21(z0))) -> c67(ACTIVE(s(active(U21(mark(z0))))), S(mark(U21(z0))), MARK(U21(z0)))
   MARK(s(U31(z0, z1))) -> c67(ACTIVE(s(active(U31(mark(z0), z1)))), S(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(s(U32(z0))) -> c67(ACTIVE(s(active(U32(mark(z0))))), S(mark(U32(z0))), MARK(U32(z0)))
   MARK(s(U41(z0, z1))) -> c67(ACTIVE(s(active(U41(mark(z0), z1)))), S(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(s(U51(z0, z1, z2))) -> c67(ACTIVE(s(active(U51(mark(z0), z1, z2)))), S(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(s(U52(z0, z1, z2))) -> c67(ACTIVE(s(active(U52(mark(z0), z1, z2)))), S(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(s(s(z0))) -> c67(ACTIVE(s(active(s(mark(z0))))), S(mark(s(z0))), MARK(s(z0)))
   MARK(s(plus(z0, z1))) -> c67(ACTIVE(s(active(plus(mark(z0), mark(z1))))), S(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(s(U61(z0))) -> c67(ACTIVE(s(active(U61(mark(z0))))), S(mark(U61(z0))), MARK(U61(z0)))
   MARK(s(0)) -> c67(ACTIVE(s(active(0))), S(mark(0)), MARK(0))
   MARK(s(U71(z0, z1, z2))) -> c67(ACTIVE(s(active(U71(mark(z0), z1, z2)))), S(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(s(U72(z0, z1, z2))) -> c67(ACTIVE(s(active(U72(mark(z0), z1, z2)))), S(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(s(x(z0, z1))) -> c67(ACTIVE(s(active(x(mark(z0), mark(z1))))), S(mark(x(z0, z1))), MARK(x(z0, z1)))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3, c62_3, c62_1, c63_3, c64_3, c64_1, c65_3, c65_1, c66_3, c66_1, c67_3


----------------------------------------

(125) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing tuple parts
----------------------------------------

(126)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))
   MARK(s(U11(z0, z1))) -> c67(ACTIVE(s(active(U11(mark(z0), z1)))), S(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(s(tt)) -> c67(ACTIVE(s(active(tt))), S(mark(tt)), MARK(tt))
   MARK(s(U12(z0))) -> c67(ACTIVE(s(active(U12(mark(z0))))), S(mark(U12(z0))), MARK(U12(z0)))
   MARK(s(isNat(z0))) -> c67(ACTIVE(s(active(isNat(z0)))), S(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(s(U21(z0))) -> c67(ACTIVE(s(active(U21(mark(z0))))), S(mark(U21(z0))), MARK(U21(z0)))
   MARK(s(U31(z0, z1))) -> c67(ACTIVE(s(active(U31(mark(z0), z1)))), S(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(s(U32(z0))) -> c67(ACTIVE(s(active(U32(mark(z0))))), S(mark(U32(z0))), MARK(U32(z0)))
   MARK(s(U41(z0, z1))) -> c67(ACTIVE(s(active(U41(mark(z0), z1)))), S(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(s(U51(z0, z1, z2))) -> c67(ACTIVE(s(active(U51(mark(z0), z1, z2)))), S(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(s(U52(z0, z1, z2))) -> c67(ACTIVE(s(active(U52(mark(z0), z1, z2)))), S(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(s(s(z0))) -> c67(ACTIVE(s(active(s(mark(z0))))), S(mark(s(z0))), MARK(s(z0)))
   MARK(s(plus(z0, z1))) -> c67(ACTIVE(s(active(plus(mark(z0), mark(z1))))), S(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(s(U61(z0))) -> c67(ACTIVE(s(active(U61(mark(z0))))), S(mark(U61(z0))), MARK(U61(z0)))
   MARK(s(0)) -> c67(ACTIVE(s(active(0))), S(mark(0)), MARK(0))
   MARK(s(U71(z0, z1, z2))) -> c67(ACTIVE(s(active(U71(mark(z0), z1, z2)))), S(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(s(U72(z0, z1, z2))) -> c67(ACTIVE(s(active(U72(mark(z0), z1, z2)))), S(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(s(x(z0, z1))) -> c67(ACTIVE(s(active(x(mark(z0), mark(z1))))), S(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(s(z0)) -> c67(S(mark(z0)), MARK(z0))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))
   MARK(s(U11(z0, z1))) -> c67(ACTIVE(s(active(U11(mark(z0), z1)))), S(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(s(tt)) -> c67(ACTIVE(s(active(tt))), S(mark(tt)), MARK(tt))
   MARK(s(U12(z0))) -> c67(ACTIVE(s(active(U12(mark(z0))))), S(mark(U12(z0))), MARK(U12(z0)))
   MARK(s(isNat(z0))) -> c67(ACTIVE(s(active(isNat(z0)))), S(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(s(U21(z0))) -> c67(ACTIVE(s(active(U21(mark(z0))))), S(mark(U21(z0))), MARK(U21(z0)))
   MARK(s(U31(z0, z1))) -> c67(ACTIVE(s(active(U31(mark(z0), z1)))), S(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(s(U32(z0))) -> c67(ACTIVE(s(active(U32(mark(z0))))), S(mark(U32(z0))), MARK(U32(z0)))
   MARK(s(U41(z0, z1))) -> c67(ACTIVE(s(active(U41(mark(z0), z1)))), S(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(s(U51(z0, z1, z2))) -> c67(ACTIVE(s(active(U51(mark(z0), z1, z2)))), S(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(s(U52(z0, z1, z2))) -> c67(ACTIVE(s(active(U52(mark(z0), z1, z2)))), S(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(s(s(z0))) -> c67(ACTIVE(s(active(s(mark(z0))))), S(mark(s(z0))), MARK(s(z0)))
   MARK(s(plus(z0, z1))) -> c67(ACTIVE(s(active(plus(mark(z0), mark(z1))))), S(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(s(U61(z0))) -> c67(ACTIVE(s(active(U61(mark(z0))))), S(mark(U61(z0))), MARK(U61(z0)))
   MARK(s(0)) -> c67(ACTIVE(s(active(0))), S(mark(0)), MARK(0))
   MARK(s(U71(z0, z1, z2))) -> c67(ACTIVE(s(active(U71(mark(z0), z1, z2)))), S(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(s(U72(z0, z1, z2))) -> c67(ACTIVE(s(active(U72(mark(z0), z1, z2)))), S(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(s(x(z0, z1))) -> c67(ACTIVE(s(active(x(mark(z0), mark(z1))))), S(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(s(z0)) -> c67(S(mark(z0)), MARK(z0))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c68_4, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3, c62_3, c62_1, c63_3, c64_3, c64_1, c65_3, c65_1, c66_3, c66_1, c67_3, c67_2


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(127) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(plus(z0, z1)) -> c68(ACTIVE(plus(mark(z0), mark(z1))), PLUS(mark(z0), mark(z1)), MARK(z0), MARK(z1)) by 
   MARK(plus(z0, x1)) -> c68(ACTIVE(plus(z0, mark(x1))), PLUS(mark(z0), mark(x1)), MARK(z0), MARK(x1))
   MARK(plus(x0, z1)) -> c68(ACTIVE(plus(mark(x0), z1)), PLUS(mark(x0), mark(z1)), MARK(x0), MARK(z1))
   MARK(plus(x0, U11(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U11(mark(z0), z1)))), PLUS(mark(x0), mark(U11(z0, z1))), MARK(x0), MARK(U11(z0, z1)))
   MARK(plus(x0, tt)) -> c68(ACTIVE(plus(mark(x0), active(tt))), PLUS(mark(x0), mark(tt)), MARK(x0), MARK(tt))
   MARK(plus(x0, U12(z0))) -> c68(ACTIVE(plus(mark(x0), active(U12(mark(z0))))), PLUS(mark(x0), mark(U12(z0))), MARK(x0), MARK(U12(z0)))
   MARK(plus(x0, isNat(z0))) -> c68(ACTIVE(plus(mark(x0), active(isNat(z0)))), PLUS(mark(x0), mark(isNat(z0))), MARK(x0), MARK(isNat(z0)))
   MARK(plus(x0, U21(z0))) -> c68(ACTIVE(plus(mark(x0), active(U21(mark(z0))))), PLUS(mark(x0), mark(U21(z0))), MARK(x0), MARK(U21(z0)))
   MARK(plus(x0, U31(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U31(mark(z0), z1)))), PLUS(mark(x0), mark(U31(z0, z1))), MARK(x0), MARK(U31(z0, z1)))
   MARK(plus(x0, U32(z0))) -> c68(ACTIVE(plus(mark(x0), active(U32(mark(z0))))), PLUS(mark(x0), mark(U32(z0))), MARK(x0), MARK(U32(z0)))
   MARK(plus(x0, U41(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U41(mark(z0), z1)))), PLUS(mark(x0), mark(U41(z0, z1))), MARK(x0), MARK(U41(z0, z1)))
   MARK(plus(x0, U51(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U51(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U51(z0, z1, z2))), MARK(x0), MARK(U51(z0, z1, z2)))
   MARK(plus(x0, U52(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U52(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U52(z0, z1, z2))), MARK(x0), MARK(U52(z0, z1, z2)))
   MARK(plus(x0, s(z0))) -> c68(ACTIVE(plus(mark(x0), active(s(mark(z0))))), PLUS(mark(x0), mark(s(z0))), MARK(x0), MARK(s(z0)))
   MARK(plus(x0, plus(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(plus(mark(z0), mark(z1))))), PLUS(mark(x0), mark(plus(z0, z1))), MARK(x0), MARK(plus(z0, z1)))
   MARK(plus(x0, U61(z0))) -> c68(ACTIVE(plus(mark(x0), active(U61(mark(z0))))), PLUS(mark(x0), mark(U61(z0))), MARK(x0), MARK(U61(z0)))
   MARK(plus(x0, 0)) -> c68(ACTIVE(plus(mark(x0), active(0))), PLUS(mark(x0), mark(0)), MARK(x0), MARK(0))
   MARK(plus(x0, U71(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U71(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U71(z0, z1, z2))), MARK(x0), MARK(U71(z0, z1, z2)))
   MARK(plus(x0, U72(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U72(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U72(z0, z1, z2))), MARK(x0), MARK(U72(z0, z1, z2)))
   MARK(plus(x0, x(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(x(mark(z0), mark(z1))))), PLUS(mark(x0), mark(x(z0, z1))), MARK(x0), MARK(x(z0, z1)))
   MARK(plus(U11(z0, z1), x1)) -> c68(ACTIVE(plus(active(U11(mark(z0), z1)), mark(x1))), PLUS(mark(U11(z0, z1)), mark(x1)), MARK(U11(z0, z1)), MARK(x1))
   MARK(plus(tt, x1)) -> c68(ACTIVE(plus(active(tt), mark(x1))), PLUS(mark(tt), mark(x1)), MARK(tt), MARK(x1))
   MARK(plus(U12(z0), x1)) -> c68(ACTIVE(plus(active(U12(mark(z0))), mark(x1))), PLUS(mark(U12(z0)), mark(x1)), MARK(U12(z0)), MARK(x1))
   MARK(plus(isNat(z0), x1)) -> c68(ACTIVE(plus(active(isNat(z0)), mark(x1))), PLUS(mark(isNat(z0)), mark(x1)), MARK(isNat(z0)), MARK(x1))
   MARK(plus(U21(z0), x1)) -> c68(ACTIVE(plus(active(U21(mark(z0))), mark(x1))), PLUS(mark(U21(z0)), mark(x1)), MARK(U21(z0)), MARK(x1))
   MARK(plus(U31(z0, z1), x1)) -> c68(ACTIVE(plus(active(U31(mark(z0), z1)), mark(x1))), PLUS(mark(U31(z0, z1)), mark(x1)), MARK(U31(z0, z1)), MARK(x1))
   MARK(plus(U32(z0), x1)) -> c68(ACTIVE(plus(active(U32(mark(z0))), mark(x1))), PLUS(mark(U32(z0)), mark(x1)), MARK(U32(z0)), MARK(x1))
   MARK(plus(U41(z0, z1), x1)) -> c68(ACTIVE(plus(active(U41(mark(z0), z1)), mark(x1))), PLUS(mark(U41(z0, z1)), mark(x1)), MARK(U41(z0, z1)), MARK(x1))
   MARK(plus(U51(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U51(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U51(z0, z1, z2)), mark(x1)), MARK(U51(z0, z1, z2)), MARK(x1))
   MARK(plus(U52(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U52(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U52(z0, z1, z2)), mark(x1)), MARK(U52(z0, z1, z2)), MARK(x1))
   MARK(plus(s(z0), x1)) -> c68(ACTIVE(plus(active(s(mark(z0))), mark(x1))), PLUS(mark(s(z0)), mark(x1)), MARK(s(z0)), MARK(x1))
   MARK(plus(plus(z0, z1), x1)) -> c68(ACTIVE(plus(active(plus(mark(z0), mark(z1))), mark(x1))), PLUS(mark(plus(z0, z1)), mark(x1)), MARK(plus(z0, z1)), MARK(x1))
   MARK(plus(U61(z0), x1)) -> c68(ACTIVE(plus(active(U61(mark(z0))), mark(x1))), PLUS(mark(U61(z0)), mark(x1)), MARK(U61(z0)), MARK(x1))
   MARK(plus(0, x1)) -> c68(ACTIVE(plus(active(0), mark(x1))), PLUS(mark(0), mark(x1)), MARK(0), MARK(x1))
   MARK(plus(U71(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U71(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U71(z0, z1, z2)), mark(x1)), MARK(U71(z0, z1, z2)), MARK(x1))
   MARK(plus(U72(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U72(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U72(z0, z1, z2)), mark(x1)), MARK(U72(z0, z1, z2)), MARK(x1))
   MARK(plus(x(z0, z1), x1)) -> c68(ACTIVE(plus(active(x(mark(z0), mark(z1))), mark(x1))), PLUS(mark(x(z0, z1)), mark(x1)), MARK(x(z0, z1)), MARK(x1))

----------------------------------------

(128)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   encArg(tt) -> tt
   encArg(0) -> 0
   encArg(cons_active(z0)) -> active(encArg(z0))
   encArg(cons_mark(z0)) -> mark(encArg(z0))
   encArg(cons_U11(z0, z1)) -> U11(encArg(z0), encArg(z1))
   encArg(cons_U12(z0)) -> U12(encArg(z0))
   encArg(cons_isNat(z0)) -> isNat(encArg(z0))
   encArg(cons_U21(z0)) -> U21(encArg(z0))
   encArg(cons_U31(z0, z1)) -> U31(encArg(z0), encArg(z1))
   encArg(cons_U32(z0)) -> U32(encArg(z0))
   encArg(cons_U41(z0, z1)) -> U41(encArg(z0), encArg(z1))
   encArg(cons_U51(z0, z1, z2)) -> U51(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U52(z0, z1, z2)) -> U52(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_s(z0)) -> s(encArg(z0))
   encArg(cons_plus(z0, z1)) -> plus(encArg(z0), encArg(z1))
   encArg(cons_U61(z0)) -> U61(encArg(z0))
   encArg(cons_U71(z0, z1, z2)) -> U71(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_U72(z0, z1, z2)) -> U72(encArg(z0), encArg(z1), encArg(z2))
   encArg(cons_x(z0, z1)) -> x(encArg(z0), encArg(z1))
   active(U11(tt, z0)) -> mark(U12(isNat(z0)))
   active(U12(tt)) -> mark(tt)
   active(U21(tt)) -> mark(tt)
   active(U31(tt, z0)) -> mark(U32(isNat(z0)))
   active(U32(tt)) -> mark(tt)
   active(U41(tt, z0)) -> mark(z0)
   active(U51(tt, z0, z1)) -> mark(U52(isNat(z1), z0, z1))
   active(U52(tt, z0, z1)) -> mark(s(plus(z1, z0)))
   active(U61(tt)) -> mark(0)
   active(U71(tt, z0, z1)) -> mark(U72(isNat(z1), z0, z1))
   active(U72(tt, z0, z1)) -> mark(plus(x(z1, z0), z1))
   active(isNat(0)) -> mark(tt)
   active(isNat(plus(z0, z1))) -> mark(U11(isNat(z0), z1))
   active(isNat(s(z0))) -> mark(U21(isNat(z0)))
   active(isNat(x(z0, z1))) -> mark(U31(isNat(z0), z1))
   active(plus(z0, 0)) -> mark(U41(isNat(z0), z0))
   active(plus(z0, s(z1))) -> mark(U51(isNat(z1), z1, z0))
   active(x(z0, 0)) -> mark(U61(isNat(z0)))
   active(x(z0, s(z1))) -> mark(U71(isNat(z1), z1, z0))
   mark(U11(z0, z1)) -> active(U11(mark(z0), z1))
   mark(tt) -> active(tt)
   mark(U12(z0)) -> active(U12(mark(z0)))
   mark(isNat(z0)) -> active(isNat(z0))
   mark(U21(z0)) -> active(U21(mark(z0)))
   mark(U31(z0, z1)) -> active(U31(mark(z0), z1))
   mark(U32(z0)) -> active(U32(mark(z0)))
   mark(U41(z0, z1)) -> active(U41(mark(z0), z1))
   mark(U51(z0, z1, z2)) -> active(U51(mark(z0), z1, z2))
   mark(U52(z0, z1, z2)) -> active(U52(mark(z0), z1, z2))
   mark(s(z0)) -> active(s(mark(z0)))
   mark(plus(z0, z1)) -> active(plus(mark(z0), mark(z1)))
   mark(U61(z0)) -> active(U61(mark(z0)))
   mark(0) -> active(0)
   mark(U71(z0, z1, z2)) -> active(U71(mark(z0), z1, z2))
   mark(U72(z0, z1, z2)) -> active(U72(mark(z0), z1, z2))
   mark(x(z0, z1)) -> active(x(mark(z0), mark(z1)))
   U11(mark(z0), z1) -> U11(z0, z1)
   U11(z0, mark(z1)) -> U11(z0, z1)
   U11(active(z0), z1) -> U11(z0, z1)
   U11(z0, active(z1)) -> U11(z0, z1)
   U12(mark(z0)) -> U12(z0)
   U12(active(z0)) -> U12(z0)
   isNat(mark(z0)) -> isNat(z0)
   isNat(active(z0)) -> isNat(z0)
   U21(mark(z0)) -> U21(z0)
   U21(active(z0)) -> U21(z0)
   U31(mark(z0), z1) -> U31(z0, z1)
   U31(z0, mark(z1)) -> U31(z0, z1)
   U31(active(z0), z1) -> U31(z0, z1)
   U31(z0, active(z1)) -> U31(z0, z1)
   U32(mark(z0)) -> U32(z0)
   U32(active(z0)) -> U32(z0)
   U41(mark(z0), z1) -> U41(z0, z1)
   U41(z0, mark(z1)) -> U41(z0, z1)
   U41(active(z0), z1) -> U41(z0, z1)
   U41(z0, active(z1)) -> U41(z0, z1)
   U51(mark(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, mark(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, mark(z2)) -> U51(z0, z1, z2)
   U51(active(z0), z1, z2) -> U51(z0, z1, z2)
   U51(z0, active(z1), z2) -> U51(z0, z1, z2)
   U51(z0, z1, active(z2)) -> U51(z0, z1, z2)
   U52(mark(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, mark(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, mark(z2)) -> U52(z0, z1, z2)
   U52(active(z0), z1, z2) -> U52(z0, z1, z2)
   U52(z0, active(z1), z2) -> U52(z0, z1, z2)
   U52(z0, z1, active(z2)) -> U52(z0, z1, z2)
   s(mark(z0)) -> s(z0)
   s(active(z0)) -> s(z0)
   plus(mark(z0), z1) -> plus(z0, z1)
   plus(z0, mark(z1)) -> plus(z0, z1)
   plus(active(z0), z1) -> plus(z0, z1)
   plus(z0, active(z1)) -> plus(z0, z1)
   U61(mark(z0)) -> U61(z0)
   U61(active(z0)) -> U61(z0)
   U71(mark(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, mark(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, mark(z2)) -> U71(z0, z1, z2)
   U71(active(z0), z1, z2) -> U71(z0, z1, z2)
   U71(z0, active(z1), z2) -> U71(z0, z1, z2)
   U71(z0, z1, active(z2)) -> U71(z0, z1, z2)
   U72(mark(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, mark(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, mark(z2)) -> U72(z0, z1, z2)
   U72(active(z0), z1, z2) -> U72(z0, z1, z2)
   U72(z0, active(z1), z2) -> U72(z0, z1, z2)
   U72(z0, z1, active(z2)) -> U72(z0, z1, z2)
   x(mark(z0), z1) -> x(z0, z1)
   x(z0, mark(z1)) -> x(z0, z1)
   x(active(z0), z1) -> x(z0, z1)
   x(z0, active(z1)) -> x(z0, z1)
Tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   ENCODE_ACTIVE(z0) -> c(ACTIVE(encArg(z0)))
   ENCODE_U11(z0, z1) -> c(U11'(encArg(z0), encArg(z1)))
   ENCODE_MARK(z0) -> c(MARK(encArg(z0)))
   ENCODE_U12(z0) -> c(U12'(encArg(z0)))
   ENCODE_ISNAT(z0) -> c(ISNAT(encArg(z0)))
   ENCODE_U21(z0) -> c(U21'(encArg(z0)))
   ENCODE_U31(z0, z1) -> c(U31'(encArg(z0), encArg(z1)))
   ENCODE_U32(z0) -> c(U32'(encArg(z0)))
   ENCODE_U41(z0, z1) -> c(U41'(encArg(z0), encArg(z1)))
   ENCODE_U51(z0, z1, z2) -> c(U51'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U52(z0, z1, z2) -> c(U52'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_S(z0) -> c(S(encArg(z0)))
   ENCODE_PLUS(z0, z1) -> c(PLUS(encArg(z0), encArg(z1)))
   ENCODE_U61(z0) -> c(U61'(encArg(z0)))
   ENCODE_U71(z0, z1, z2) -> c(U71'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_U72(z0, z1, z2) -> c(U72'(encArg(z0), encArg(z1), encArg(z2)))
   ENCODE_X(z0, z1) -> c(X(encArg(z0), encArg(z1)))
   ENCARG(cons_active(cons_active(z0))) -> c2(ACTIVE(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_active(cons_mark(z0))) -> c2(ACTIVE(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_active(cons_U11(z0, z1))) -> c2(ACTIVE(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_active(cons_U12(z0))) -> c2(ACTIVE(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_active(cons_isNat(z0))) -> c2(ACTIVE(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_active(cons_U21(z0))) -> c2(ACTIVE(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_active(cons_U31(z0, z1))) -> c2(ACTIVE(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_active(cons_U32(z0))) -> c2(ACTIVE(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_active(cons_U41(z0, z1))) -> c2(ACTIVE(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_active(cons_U51(z0, z1, z2))) -> c2(ACTIVE(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_active(cons_U52(z0, z1, z2))) -> c2(ACTIVE(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_active(cons_s(z0))) -> c2(ACTIVE(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_active(cons_plus(z0, z1))) -> c2(ACTIVE(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_active(cons_U61(z0))) -> c2(ACTIVE(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_active(cons_U71(z0, z1, z2))) -> c2(ACTIVE(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_active(cons_U72(z0, z1, z2))) -> c2(ACTIVE(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_active(cons_x(z0, z1))) -> c2(ACTIVE(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(cons_active(z0))) -> c3(MARK(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_mark(cons_mark(z0))) -> c3(MARK(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_mark(cons_U11(z0, z1))) -> c3(MARK(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_mark(cons_U12(z0))) -> c3(MARK(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_mark(cons_isNat(z0))) -> c3(MARK(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_mark(cons_U21(z0))) -> c3(MARK(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_mark(cons_U31(z0, z1))) -> c3(MARK(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_mark(cons_U32(z0))) -> c3(MARK(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_mark(cons_U41(z0, z1))) -> c3(MARK(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_mark(cons_U51(z0, z1, z2))) -> c3(MARK(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_mark(cons_U52(z0, z1, z2))) -> c3(MARK(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_mark(cons_s(z0))) -> c3(MARK(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_mark(cons_plus(z0, z1))) -> c3(MARK(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_mark(cons_U61(z0))) -> c3(MARK(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_mark(cons_U71(z0, z1, z2))) -> c3(MARK(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_mark(cons_U72(z0, z1, z2))) -> c3(MARK(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_mark(cons_x(z0, z1))) -> c3(MARK(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_mark(tt)) -> c3(MARK(tt))
   ENCARG(cons_mark(0)) -> c3(MARK(0))
   ENCARG(cons_U11(x0, cons_active(z0))) -> c4(U11'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U11(x0, cons_mark(z0))) -> c4(U11'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U11(x0, cons_U11(z0, z1))) -> c4(U11'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U11(x0, cons_U12(z0))) -> c4(U11'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U11(x0, cons_isNat(z0))) -> c4(U11'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U11(x0, cons_U21(z0))) -> c4(U11'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U11(x0, cons_U31(z0, z1))) -> c4(U11'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U11(x0, cons_U32(z0))) -> c4(U11'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U11(x0, cons_U41(z0, z1))) -> c4(U11'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U11(x0, cons_U51(z0, z1, z2))) -> c4(U11'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U52(z0, z1, z2))) -> c4(U11'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_s(z0))) -> c4(U11'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U11(x0, cons_plus(z0, z1))) -> c4(U11'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U11(x0, cons_U61(z0))) -> c4(U11'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U11(x0, cons_U71(z0, z1, z2))) -> c4(U11'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_U72(z0, z1, z2))) -> c4(U11'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U11(x0, cons_x(z0, z1))) -> c4(U11'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U11(cons_active(z0), x1)) -> c4(U11'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_mark(z0), x1)) -> c4(U11'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U11(z0, z1), x1)) -> c4(U11'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U12(z0), x1)) -> c4(U11'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_isNat(z0), x1)) -> c4(U11'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U21(z0), x1)) -> c4(U11'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U31(z0, z1), x1)) -> c4(U11'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U32(z0), x1)) -> c4(U11'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U41(z0, z1), x1)) -> c4(U11'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U51(z0, z1, z2), x1)) -> c4(U11'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U52(z0, z1, z2), x1)) -> c4(U11'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_s(z0), x1)) -> c4(U11'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_plus(z0, z1), x1)) -> c4(U11'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(cons_U61(z0), x1)) -> c4(U11'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U11(cons_U71(z0, z1, z2), x1)) -> c4(U11'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_U72(z0, z1, z2), x1)) -> c4(U11'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U11(cons_x(z0, z1), x1)) -> c4(U11'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U11(x0, tt)) -> c4(U11'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U11(x0, 0)) -> c4(U11'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U11(tt, x1)) -> c4(U11'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U11(0, x1)) -> c4(U11'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U12(cons_active(z0))) -> c5(U12'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U12(cons_mark(z0))) -> c5(U12'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U12(cons_U11(z0, z1))) -> c5(U12'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U12(cons_U12(z0))) -> c5(U12'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U12(cons_isNat(z0))) -> c5(U12'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U12(cons_U21(z0))) -> c5(U12'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U12(cons_U31(z0, z1))) -> c5(U12'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U12(cons_U32(z0))) -> c5(U12'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U12(cons_U41(z0, z1))) -> c5(U12'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U12(cons_U51(z0, z1, z2))) -> c5(U12'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U12(cons_U52(z0, z1, z2))) -> c5(U12'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U12(cons_s(z0))) -> c5(U12'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U12(cons_plus(z0, z1))) -> c5(U12'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U12(cons_U61(z0))) -> c5(U12'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U12(cons_U71(z0, z1, z2))) -> c5(U12'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U12(cons_U72(z0, z1, z2))) -> c5(U12'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U12(cons_x(z0, z1))) -> c5(U12'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_isNat(cons_active(z0))) -> c6(ISNAT(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_isNat(cons_mark(z0))) -> c6(ISNAT(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_isNat(cons_U11(z0, z1))) -> c6(ISNAT(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_isNat(cons_U12(z0))) -> c6(ISNAT(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_isNat(cons_isNat(z0))) -> c6(ISNAT(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_isNat(cons_U21(z0))) -> c6(ISNAT(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_isNat(cons_U31(z0, z1))) -> c6(ISNAT(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_isNat(cons_U32(z0))) -> c6(ISNAT(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_isNat(cons_U41(z0, z1))) -> c6(ISNAT(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_isNat(cons_U51(z0, z1, z2))) -> c6(ISNAT(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U52(z0, z1, z2))) -> c6(ISNAT(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_isNat(cons_s(z0))) -> c6(ISNAT(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_isNat(cons_plus(z0, z1))) -> c6(ISNAT(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_isNat(cons_U61(z0))) -> c6(ISNAT(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_isNat(cons_U71(z0, z1, z2))) -> c6(ISNAT(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_isNat(cons_U72(z0, z1, z2))) -> c6(ISNAT(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_isNat(cons_x(z0, z1))) -> c6(ISNAT(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U21(cons_active(z0))) -> c7(U21'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U21(cons_mark(z0))) -> c7(U21'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U21(cons_U11(z0, z1))) -> c7(U21'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U21(cons_U12(z0))) -> c7(U21'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U21(cons_isNat(z0))) -> c7(U21'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U21(cons_U21(z0))) -> c7(U21'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U21(cons_U31(z0, z1))) -> c7(U21'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U21(cons_U32(z0))) -> c7(U21'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U21(cons_U41(z0, z1))) -> c7(U21'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U21(cons_U51(z0, z1, z2))) -> c7(U21'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U21(cons_U52(z0, z1, z2))) -> c7(U21'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U21(cons_s(z0))) -> c7(U21'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U21(cons_plus(z0, z1))) -> c7(U21'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U21(cons_U61(z0))) -> c7(U21'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U21(cons_U71(z0, z1, z2))) -> c7(U21'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U21(cons_U72(z0, z1, z2))) -> c7(U21'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U21(cons_x(z0, z1))) -> c7(U21'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(x0, cons_active(z0))) -> c8(U31'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U31(x0, cons_mark(z0))) -> c8(U31'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U31(x0, cons_U11(z0, z1))) -> c8(U31'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U31(x0, cons_U12(z0))) -> c8(U31'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U31(x0, cons_isNat(z0))) -> c8(U31'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U31(x0, cons_U21(z0))) -> c8(U31'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U31(x0, cons_U31(z0, z1))) -> c8(U31'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U31(x0, cons_U32(z0))) -> c8(U31'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U31(x0, cons_U41(z0, z1))) -> c8(U31'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U31(x0, cons_U51(z0, z1, z2))) -> c8(U31'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U52(z0, z1, z2))) -> c8(U31'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_s(z0))) -> c8(U31'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U31(x0, cons_plus(z0, z1))) -> c8(U31'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U31(x0, cons_U61(z0))) -> c8(U31'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U31(x0, cons_U71(z0, z1, z2))) -> c8(U31'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_U72(z0, z1, z2))) -> c8(U31'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U31(x0, cons_x(z0, z1))) -> c8(U31'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U31(cons_active(z0), x1)) -> c8(U31'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_mark(z0), x1)) -> c8(U31'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U11(z0, z1), x1)) -> c8(U31'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U12(z0), x1)) -> c8(U31'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_isNat(z0), x1)) -> c8(U31'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U21(z0), x1)) -> c8(U31'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U31(z0, z1), x1)) -> c8(U31'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U32(z0), x1)) -> c8(U31'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U41(z0, z1), x1)) -> c8(U31'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U51(z0, z1, z2), x1)) -> c8(U31'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U52(z0, z1, z2), x1)) -> c8(U31'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_s(z0), x1)) -> c8(U31'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_plus(z0, z1), x1)) -> c8(U31'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(cons_U61(z0), x1)) -> c8(U31'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U31(cons_U71(z0, z1, z2), x1)) -> c8(U31'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_U72(z0, z1, z2), x1)) -> c8(U31'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U31(cons_x(z0, z1), x1)) -> c8(U31'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U31(x0, tt)) -> c8(U31'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U31(x0, 0)) -> c8(U31'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U31(tt, x1)) -> c8(U31'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U31(0, x1)) -> c8(U31'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U32(cons_active(z0))) -> c9(U32'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U32(cons_mark(z0))) -> c9(U32'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U32(cons_U11(z0, z1))) -> c9(U32'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U32(cons_U12(z0))) -> c9(U32'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U32(cons_isNat(z0))) -> c9(U32'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U32(cons_U21(z0))) -> c9(U32'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U32(cons_U31(z0, z1))) -> c9(U32'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U32(cons_U32(z0))) -> c9(U32'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U32(cons_U41(z0, z1))) -> c9(U32'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U32(cons_U51(z0, z1, z2))) -> c9(U32'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U32(cons_U52(z0, z1, z2))) -> c9(U32'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U32(cons_s(z0))) -> c9(U32'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U32(cons_plus(z0, z1))) -> c9(U32'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U32(cons_U61(z0))) -> c9(U32'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U32(cons_U71(z0, z1, z2))) -> c9(U32'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U32(cons_U72(z0, z1, z2))) -> c9(U32'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U32(cons_x(z0, z1))) -> c9(U32'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(x0, cons_active(z0))) -> c10(U41'(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_U41(x0, cons_mark(z0))) -> c10(U41'(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_U41(x0, cons_U11(z0, z1))) -> c10(U41'(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U41(x0, cons_U12(z0))) -> c10(U41'(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_U41(x0, cons_isNat(z0))) -> c10(U41'(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U41(x0, cons_U21(z0))) -> c10(U41'(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_U41(x0, cons_U31(z0, z1))) -> c10(U41'(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U41(x0, cons_U32(z0))) -> c10(U41'(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_U41(x0, cons_U41(z0, z1))) -> c10(U41'(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U41(x0, cons_U51(z0, z1, z2))) -> c10(U41'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U52(z0, z1, z2))) -> c10(U41'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_s(z0))) -> c10(U41'(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_U41(x0, cons_plus(z0, z1))) -> c10(U41'(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U41(x0, cons_U61(z0))) -> c10(U41'(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_U41(x0, cons_U71(z0, z1, z2))) -> c10(U41'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_U72(z0, z1, z2))) -> c10(U41'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U41(x0, cons_x(z0, z1))) -> c10(U41'(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U41(cons_active(z0), x1)) -> c10(U41'(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_mark(z0), x1)) -> c10(U41'(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U11(z0, z1), x1)) -> c10(U41'(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U12(z0), x1)) -> c10(U41'(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_isNat(z0), x1)) -> c10(U41'(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U21(z0), x1)) -> c10(U41'(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U31(z0, z1), x1)) -> c10(U41'(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U32(z0), x1)) -> c10(U41'(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U41(z0, z1), x1)) -> c10(U41'(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U51(z0, z1, z2), x1)) -> c10(U41'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U52(z0, z1, z2), x1)) -> c10(U41'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_s(z0), x1)) -> c10(U41'(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_plus(z0, z1), x1)) -> c10(U41'(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(cons_U61(z0), x1)) -> c10(U41'(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_U41(cons_U71(z0, z1, z2), x1)) -> c10(U41'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_U72(z0, z1, z2), x1)) -> c10(U41'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_U41(cons_x(z0, z1), x1)) -> c10(U41'(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_U41(x0, tt)) -> c10(U41'(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_U41(x0, 0)) -> c10(U41'(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_U41(tt, x1)) -> c10(U41'(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U41(0, x1)) -> c10(U41'(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, cons_active(z0))) -> c11(U51'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U51(x0, x1, cons_mark(z0))) -> c11(U51'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U51(x0, x1, cons_U11(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U12(z0))) -> c11(U51'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U51(x0, x1, cons_isNat(z0))) -> c11(U51'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U51(x0, x1, cons_U21(z0))) -> c11(U51'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U51(x0, x1, cons_U31(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U32(z0))) -> c11(U51'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U51(x0, x1, cons_U41(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U51(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U52(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_s(z0))) -> c11(U51'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U51(x0, x1, cons_plus(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U51(x0, x1, cons_U61(z0))) -> c11(U51'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U51(x0, x1, cons_U71(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_U72(z0, z1, z2))) -> c11(U51'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U51(x0, x1, cons_x(z0, z1))) -> c11(U51'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U51(x0, cons_active(z0), x2)) -> c11(U51'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_mark(z0), x2)) -> c11(U51'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U11(z0, z1), x2)) -> c11(U51'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U12(z0), x2)) -> c11(U51'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_isNat(z0), x2)) -> c11(U51'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U21(z0), x2)) -> c11(U51'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U31(z0, z1), x2)) -> c11(U51'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U32(z0), x2)) -> c11(U51'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U41(z0, z1), x2)) -> c11(U51'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U51(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U52(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_s(z0), x2)) -> c11(U51'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_plus(z0, z1), x2)) -> c11(U51'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U61(z0), x2)) -> c11(U51'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U71(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_U72(z0, z1, z2), x2)) -> c11(U51'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U51(x0, cons_x(z0, z1), x2)) -> c11(U51'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U51(cons_active(z0), x1, x2)) -> c11(U51'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_mark(z0), x1, x2)) -> c11(U51'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U11(z0, z1), x1, x2)) -> c11(U51'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U12(z0), x1, x2)) -> c11(U51'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_isNat(z0), x1, x2)) -> c11(U51'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U21(z0), x1, x2)) -> c11(U51'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U31(z0, z1), x1, x2)) -> c11(U51'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U32(z0), x1, x2)) -> c11(U51'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U41(z0, z1), x1, x2)) -> c11(U51'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U51(z0, z1, z2), x1, x2)) -> c11(U51'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U52(z0, z1, z2), x1, x2)) -> c11(U51'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_s(z0), x1, x2)) -> c11(U51'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_plus(z0, z1), x1, x2)) -> c11(U51'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U61(z0), x1, x2)) -> c11(U51'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U71(z0, z1, z2), x1, x2)) -> c11(U51'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_U72(z0, z1, z2), x1, x2)) -> c11(U51'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(cons_x(z0, z1), x1, x2)) -> c11(U51'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(x0, x1, tt)) -> c11(U51'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, x1, 0)) -> c11(U51'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U51(x0, tt, x2)) -> c11(U51'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(x0, 0, x2)) -> c11(U51'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U51(tt, x1, x2)) -> c11(U51'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U51(0, x1, x2)) -> c11(U51'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, cons_active(z0))) -> c12(U52'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U52(x0, x1, cons_mark(z0))) -> c12(U52'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U52(x0, x1, cons_U11(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U12(z0))) -> c12(U52'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U52(x0, x1, cons_isNat(z0))) -> c12(U52'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U52(x0, x1, cons_U21(z0))) -> c12(U52'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U52(x0, x1, cons_U31(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U32(z0))) -> c12(U52'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U52(x0, x1, cons_U41(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U51(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U52(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_s(z0))) -> c12(U52'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U52(x0, x1, cons_plus(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U52(x0, x1, cons_U61(z0))) -> c12(U52'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U52(x0, x1, cons_U71(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_U72(z0, z1, z2))) -> c12(U52'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U52(x0, x1, cons_x(z0, z1))) -> c12(U52'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U52(x0, cons_active(z0), x2)) -> c12(U52'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_mark(z0), x2)) -> c12(U52'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U11(z0, z1), x2)) -> c12(U52'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U12(z0), x2)) -> c12(U52'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_isNat(z0), x2)) -> c12(U52'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U21(z0), x2)) -> c12(U52'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U31(z0, z1), x2)) -> c12(U52'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U32(z0), x2)) -> c12(U52'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U41(z0, z1), x2)) -> c12(U52'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U51(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U52(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_s(z0), x2)) -> c12(U52'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_plus(z0, z1), x2)) -> c12(U52'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U61(z0), x2)) -> c12(U52'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U71(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_U72(z0, z1, z2), x2)) -> c12(U52'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U52(x0, cons_x(z0, z1), x2)) -> c12(U52'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U52(cons_active(z0), x1, x2)) -> c12(U52'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_mark(z0), x1, x2)) -> c12(U52'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U11(z0, z1), x1, x2)) -> c12(U52'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U12(z0), x1, x2)) -> c12(U52'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_isNat(z0), x1, x2)) -> c12(U52'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U21(z0), x1, x2)) -> c12(U52'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U31(z0, z1), x1, x2)) -> c12(U52'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U32(z0), x1, x2)) -> c12(U52'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U41(z0, z1), x1, x2)) -> c12(U52'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U51(z0, z1, z2), x1, x2)) -> c12(U52'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U52(z0, z1, z2), x1, x2)) -> c12(U52'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_s(z0), x1, x2)) -> c12(U52'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_plus(z0, z1), x1, x2)) -> c12(U52'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U61(z0), x1, x2)) -> c12(U52'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U71(z0, z1, z2), x1, x2)) -> c12(U52'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_U72(z0, z1, z2), x1, x2)) -> c12(U52'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(cons_x(z0, z1), x1, x2)) -> c12(U52'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(x0, x1, tt)) -> c12(U52'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, x1, 0)) -> c12(U52'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U52(x0, tt, x2)) -> c12(U52'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(x0, 0, x2)) -> c12(U52'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U52(tt, x1, x2)) -> c12(U52'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U52(0, x1, x2)) -> c12(U52'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_s(cons_active(z0))) -> c13(S(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_s(cons_mark(z0))) -> c13(S(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_s(cons_U11(z0, z1))) -> c13(S(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_s(cons_U12(z0))) -> c13(S(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_s(cons_isNat(z0))) -> c13(S(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_s(cons_U21(z0))) -> c13(S(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_s(cons_U31(z0, z1))) -> c13(S(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_s(cons_U32(z0))) -> c13(S(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_s(cons_U41(z0, z1))) -> c13(S(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_s(cons_U51(z0, z1, z2))) -> c13(S(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_s(cons_U52(z0, z1, z2))) -> c13(S(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_s(cons_s(z0))) -> c13(S(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_s(cons_plus(z0, z1))) -> c13(S(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_s(cons_U61(z0))) -> c13(S(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_s(cons_U71(z0, z1, z2))) -> c13(S(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_s(cons_U72(z0, z1, z2))) -> c13(S(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_s(cons_x(z0, z1))) -> c13(S(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(x0, cons_active(z0))) -> c14(PLUS(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_plus(x0, cons_mark(z0))) -> c14(PLUS(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_plus(x0, cons_U11(z0, z1))) -> c14(PLUS(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_plus(x0, cons_U12(z0))) -> c14(PLUS(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_plus(x0, cons_isNat(z0))) -> c14(PLUS(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_plus(x0, cons_U21(z0))) -> c14(PLUS(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_plus(x0, cons_U31(z0, z1))) -> c14(PLUS(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_plus(x0, cons_U32(z0))) -> c14(PLUS(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_plus(x0, cons_U41(z0, z1))) -> c14(PLUS(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_plus(x0, cons_U51(z0, z1, z2))) -> c14(PLUS(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U52(z0, z1, z2))) -> c14(PLUS(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_s(z0))) -> c14(PLUS(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_plus(x0, cons_plus(z0, z1))) -> c14(PLUS(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_plus(x0, cons_U61(z0))) -> c14(PLUS(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_plus(x0, cons_U71(z0, z1, z2))) -> c14(PLUS(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_U72(z0, z1, z2))) -> c14(PLUS(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_plus(x0, cons_x(z0, z1))) -> c14(PLUS(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_plus(cons_active(z0), x1)) -> c14(PLUS(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_mark(z0), x1)) -> c14(PLUS(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U11(z0, z1), x1)) -> c14(PLUS(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U12(z0), x1)) -> c14(PLUS(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_isNat(z0), x1)) -> c14(PLUS(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U21(z0), x1)) -> c14(PLUS(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U31(z0, z1), x1)) -> c14(PLUS(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U32(z0), x1)) -> c14(PLUS(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U41(z0, z1), x1)) -> c14(PLUS(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U51(z0, z1, z2), x1)) -> c14(PLUS(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U52(z0, z1, z2), x1)) -> c14(PLUS(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_s(z0), x1)) -> c14(PLUS(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_plus(z0, z1), x1)) -> c14(PLUS(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(cons_U61(z0), x1)) -> c14(PLUS(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_plus(cons_U71(z0, z1, z2), x1)) -> c14(PLUS(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_U72(z0, z1, z2), x1)) -> c14(PLUS(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_plus(cons_x(z0, z1), x1)) -> c14(PLUS(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_plus(x0, tt)) -> c14(PLUS(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_plus(x0, 0)) -> c14(PLUS(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_plus(tt, x1)) -> c14(PLUS(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_plus(0, x1)) -> c14(PLUS(0, encArg(x1)), ENCARG(x1))
   ENCARG(cons_U61(cons_active(z0))) -> c15(U61'(active(encArg(z0))), ENCARG(cons_active(z0)))
   ENCARG(cons_U61(cons_mark(z0))) -> c15(U61'(mark(encArg(z0))), ENCARG(cons_mark(z0)))
   ENCARG(cons_U61(cons_U11(z0, z1))) -> c15(U61'(U11(encArg(z0), encArg(z1))), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U61(cons_U12(z0))) -> c15(U61'(U12(encArg(z0))), ENCARG(cons_U12(z0)))
   ENCARG(cons_U61(cons_isNat(z0))) -> c15(U61'(isNat(encArg(z0))), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U61(cons_U21(z0))) -> c15(U61'(U21(encArg(z0))), ENCARG(cons_U21(z0)))
   ENCARG(cons_U61(cons_U31(z0, z1))) -> c15(U61'(U31(encArg(z0), encArg(z1))), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U61(cons_U32(z0))) -> c15(U61'(U32(encArg(z0))), ENCARG(cons_U32(z0)))
   ENCARG(cons_U61(cons_U41(z0, z1))) -> c15(U61'(U41(encArg(z0), encArg(z1))), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U61(cons_U51(z0, z1, z2))) -> c15(U61'(U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U61(cons_U52(z0, z1, z2))) -> c15(U61'(U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U61(cons_s(z0))) -> c15(U61'(s(encArg(z0))), ENCARG(cons_s(z0)))
   ENCARG(cons_U61(cons_plus(z0, z1))) -> c15(U61'(plus(encArg(z0), encArg(z1))), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U61(cons_U61(z0))) -> c15(U61'(U61(encArg(z0))), ENCARG(cons_U61(z0)))
   ENCARG(cons_U61(cons_U71(z0, z1, z2))) -> c15(U61'(U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U61(cons_U72(z0, z1, z2))) -> c15(U61'(U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U61(cons_x(z0, z1))) -> c15(U61'(x(encArg(z0), encArg(z1))), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_active(z0))) -> c16(U71'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U71(x0, x1, cons_mark(z0))) -> c16(U71'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U71(x0, x1, cons_U11(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U12(z0))) -> c16(U71'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U71(x0, x1, cons_isNat(z0))) -> c16(U71'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U71(x0, x1, cons_U21(z0))) -> c16(U71'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U71(x0, x1, cons_U31(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U32(z0))) -> c16(U71'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U71(x0, x1, cons_U41(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U51(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U52(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_s(z0))) -> c16(U71'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U71(x0, x1, cons_plus(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U71(x0, x1, cons_U61(z0))) -> c16(U71'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U71(x0, x1, cons_U71(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_U72(z0, z1, z2))) -> c16(U71'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U71(x0, x1, cons_x(z0, z1))) -> c16(U71'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U71(x0, cons_active(z0), x2)) -> c16(U71'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_mark(z0), x2)) -> c16(U71'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U11(z0, z1), x2)) -> c16(U71'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U12(z0), x2)) -> c16(U71'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_isNat(z0), x2)) -> c16(U71'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U21(z0), x2)) -> c16(U71'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U31(z0, z1), x2)) -> c16(U71'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U32(z0), x2)) -> c16(U71'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U41(z0, z1), x2)) -> c16(U71'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U51(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U52(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_s(z0), x2)) -> c16(U71'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_plus(z0, z1), x2)) -> c16(U71'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U61(z0), x2)) -> c16(U71'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U71(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_U72(z0, z1, z2), x2)) -> c16(U71'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U71(x0, cons_x(z0, z1), x2)) -> c16(U71'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U71(cons_active(z0), x1, x2)) -> c16(U71'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_mark(z0), x1, x2)) -> c16(U71'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U11(z0, z1), x1, x2)) -> c16(U71'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U12(z0), x1, x2)) -> c16(U71'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_isNat(z0), x1, x2)) -> c16(U71'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U21(z0), x1, x2)) -> c16(U71'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U31(z0, z1), x1, x2)) -> c16(U71'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U32(z0), x1, x2)) -> c16(U71'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U41(z0, z1), x1, x2)) -> c16(U71'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U51(z0, z1, z2), x1, x2)) -> c16(U71'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U52(z0, z1, z2), x1, x2)) -> c16(U71'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_s(z0), x1, x2)) -> c16(U71'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_plus(z0, z1), x1, x2)) -> c16(U71'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U61(z0), x1, x2)) -> c16(U71'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U71(z0, z1, z2), x1, x2)) -> c16(U71'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_U72(z0, z1, z2), x1, x2)) -> c16(U71'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(cons_x(z0, z1), x1, x2)) -> c16(U71'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(x0, x1, tt)) -> c16(U71'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, x1, 0)) -> c16(U71'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U71(x0, tt, x2)) -> c16(U71'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(x0, 0, x2)) -> c16(U71'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U71(tt, x1, x2)) -> c16(U71'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U71(0, x1, x2)) -> c16(U71'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, cons_active(z0))) -> c17(U72'(encArg(x0), encArg(x1), active(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_active(z0)))
   ENCARG(cons_U72(x0, x1, cons_mark(z0))) -> c17(U72'(encArg(x0), encArg(x1), mark(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_mark(z0)))
   ENCARG(cons_U72(x0, x1, cons_U11(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U12(z0))) -> c17(U72'(encArg(x0), encArg(x1), U12(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U12(z0)))
   ENCARG(cons_U72(x0, x1, cons_isNat(z0))) -> c17(U72'(encArg(x0), encArg(x1), isNat(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_isNat(z0)))
   ENCARG(cons_U72(x0, x1, cons_U21(z0))) -> c17(U72'(encArg(x0), encArg(x1), U21(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U21(z0)))
   ENCARG(cons_U72(x0, x1, cons_U31(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U32(z0))) -> c17(U72'(encArg(x0), encArg(x1), U32(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U32(z0)))
   ENCARG(cons_U72(x0, x1, cons_U41(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U51(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U52(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_s(z0))) -> c17(U72'(encArg(x0), encArg(x1), s(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_s(z0)))
   ENCARG(cons_U72(x0, x1, cons_plus(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_U72(x0, x1, cons_U61(z0))) -> c17(U72'(encArg(x0), encArg(x1), U61(encArg(z0))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U61(z0)))
   ENCARG(cons_U72(x0, x1, cons_U71(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_U72(z0, z1, z2))) -> c17(U72'(encArg(x0), encArg(x1), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(x1), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_U72(x0, x1, cons_x(z0, z1))) -> c17(U72'(encArg(x0), encArg(x1), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(x1), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_U72(x0, cons_active(z0), x2)) -> c17(U72'(encArg(x0), active(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_active(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_mark(z0), x2)) -> c17(U72'(encArg(x0), mark(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_mark(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U11(z0, z1), x2)) -> c17(U72'(encArg(x0), U11(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U11(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U12(z0), x2)) -> c17(U72'(encArg(x0), U12(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U12(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_isNat(z0), x2)) -> c17(U72'(encArg(x0), isNat(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_isNat(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U21(z0), x2)) -> c17(U72'(encArg(x0), U21(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U21(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U31(z0, z1), x2)) -> c17(U72'(encArg(x0), U31(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U31(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U32(z0), x2)) -> c17(U72'(encArg(x0), U32(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U32(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U41(z0, z1), x2)) -> c17(U72'(encArg(x0), U41(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_U41(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U51(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U52(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_s(z0), x2)) -> c17(U72'(encArg(x0), s(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_s(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_plus(z0, z1), x2)) -> c17(U72'(encArg(x0), plus(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_plus(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U61(z0), x2)) -> c17(U72'(encArg(x0), U61(encArg(z0)), encArg(x2)), ENCARG(x0), ENCARG(cons_U61(z0)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U71(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_U72(z0, z1, z2), x2)) -> c17(U72'(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x2)), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x2))
   ENCARG(cons_U72(x0, cons_x(z0, z1), x2)) -> c17(U72'(encArg(x0), x(encArg(z0), encArg(z1)), encArg(x2)), ENCARG(x0), ENCARG(cons_x(z0, z1)), ENCARG(x2))
   ENCARG(cons_U72(cons_active(z0), x1, x2)) -> c17(U72'(active(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_active(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_mark(z0), x1, x2)) -> c17(U72'(mark(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_mark(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U11(z0, z1), x1, x2)) -> c17(U72'(U11(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U11(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U12(z0), x1, x2)) -> c17(U72'(U12(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U12(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_isNat(z0), x1, x2)) -> c17(U72'(isNat(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_isNat(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U21(z0), x1, x2)) -> c17(U72'(U21(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U21(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U31(z0, z1), x1, x2)) -> c17(U72'(U31(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U31(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U32(z0), x1, x2)) -> c17(U72'(U32(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U32(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U41(z0, z1), x1, x2)) -> c17(U72'(U41(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_U41(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U51(z0, z1, z2), x1, x2)) -> c17(U72'(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U52(z0, z1, z2), x1, x2)) -> c17(U72'(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_s(z0), x1, x2)) -> c17(U72'(s(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_s(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_plus(z0, z1), x1, x2)) -> c17(U72'(plus(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_plus(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U61(z0), x1, x2)) -> c17(U72'(U61(encArg(z0)), encArg(x1), encArg(x2)), ENCARG(cons_U61(z0)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U71(z0, z1, z2), x1, x2)) -> c17(U72'(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_U72(z0, z1, z2), x1, x2)) -> c17(U72'(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1), encArg(x2)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(cons_x(z0, z1), x1, x2)) -> c17(U72'(x(encArg(z0), encArg(z1)), encArg(x1), encArg(x2)), ENCARG(cons_x(z0, z1)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(x0, x1, tt)) -> c17(U72'(encArg(x0), encArg(x1), tt), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, x1, 0)) -> c17(U72'(encArg(x0), encArg(x1), 0), ENCARG(x0), ENCARG(x1))
   ENCARG(cons_U72(x0, tt, x2)) -> c17(U72'(encArg(x0), tt, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(x0, 0, x2)) -> c17(U72'(encArg(x0), 0, encArg(x2)), ENCARG(x0), ENCARG(x2))
   ENCARG(cons_U72(tt, x1, x2)) -> c17(U72'(tt, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_U72(0, x1, x2)) -> c17(U72'(0, encArg(x1), encArg(x2)), ENCARG(x1), ENCARG(x2))
   ENCARG(cons_x(x0, cons_active(z0))) -> c18(X(encArg(x0), active(encArg(z0))), ENCARG(x0), ENCARG(cons_active(z0)))
   ENCARG(cons_x(x0, cons_mark(z0))) -> c18(X(encArg(x0), mark(encArg(z0))), ENCARG(x0), ENCARG(cons_mark(z0)))
   ENCARG(cons_x(x0, cons_U11(z0, z1))) -> c18(X(encArg(x0), U11(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U11(z0, z1)))
   ENCARG(cons_x(x0, cons_U12(z0))) -> c18(X(encArg(x0), U12(encArg(z0))), ENCARG(x0), ENCARG(cons_U12(z0)))
   ENCARG(cons_x(x0, cons_isNat(z0))) -> c18(X(encArg(x0), isNat(encArg(z0))), ENCARG(x0), ENCARG(cons_isNat(z0)))
   ENCARG(cons_x(x0, cons_U21(z0))) -> c18(X(encArg(x0), U21(encArg(z0))), ENCARG(x0), ENCARG(cons_U21(z0)))
   ENCARG(cons_x(x0, cons_U31(z0, z1))) -> c18(X(encArg(x0), U31(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U31(z0, z1)))
   ENCARG(cons_x(x0, cons_U32(z0))) -> c18(X(encArg(x0), U32(encArg(z0))), ENCARG(x0), ENCARG(cons_U32(z0)))
   ENCARG(cons_x(x0, cons_U41(z0, z1))) -> c18(X(encArg(x0), U41(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_U41(z0, z1)))
   ENCARG(cons_x(x0, cons_U51(z0, z1, z2))) -> c18(X(encArg(x0), U51(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U51(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U52(z0, z1, z2))) -> c18(X(encArg(x0), U52(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U52(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_s(z0))) -> c18(X(encArg(x0), s(encArg(z0))), ENCARG(x0), ENCARG(cons_s(z0)))
   ENCARG(cons_x(x0, cons_plus(z0, z1))) -> c18(X(encArg(x0), plus(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_plus(z0, z1)))
   ENCARG(cons_x(x0, cons_U61(z0))) -> c18(X(encArg(x0), U61(encArg(z0))), ENCARG(x0), ENCARG(cons_U61(z0)))
   ENCARG(cons_x(x0, cons_U71(z0, z1, z2))) -> c18(X(encArg(x0), U71(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U71(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_U72(z0, z1, z2))) -> c18(X(encArg(x0), U72(encArg(z0), encArg(z1), encArg(z2))), ENCARG(x0), ENCARG(cons_U72(z0, z1, z2)))
   ENCARG(cons_x(x0, cons_x(z0, z1))) -> c18(X(encArg(x0), x(encArg(z0), encArg(z1))), ENCARG(x0), ENCARG(cons_x(z0, z1)))
   ENCARG(cons_x(cons_active(z0), x1)) -> c18(X(active(encArg(z0)), encArg(x1)), ENCARG(cons_active(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_mark(z0), x1)) -> c18(X(mark(encArg(z0)), encArg(x1)), ENCARG(cons_mark(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U11(z0, z1), x1)) -> c18(X(U11(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U11(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U12(z0), x1)) -> c18(X(U12(encArg(z0)), encArg(x1)), ENCARG(cons_U12(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_isNat(z0), x1)) -> c18(X(isNat(encArg(z0)), encArg(x1)), ENCARG(cons_isNat(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U21(z0), x1)) -> c18(X(U21(encArg(z0)), encArg(x1)), ENCARG(cons_U21(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U31(z0, z1), x1)) -> c18(X(U31(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U31(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U32(z0), x1)) -> c18(X(U32(encArg(z0)), encArg(x1)), ENCARG(cons_U32(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U41(z0, z1), x1)) -> c18(X(U41(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_U41(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U51(z0, z1, z2), x1)) -> c18(X(U51(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U51(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U52(z0, z1, z2), x1)) -> c18(X(U52(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U52(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_s(z0), x1)) -> c18(X(s(encArg(z0)), encArg(x1)), ENCARG(cons_s(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_plus(z0, z1), x1)) -> c18(X(plus(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_plus(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(cons_U61(z0), x1)) -> c18(X(U61(encArg(z0)), encArg(x1)), ENCARG(cons_U61(z0)), ENCARG(x1))
   ENCARG(cons_x(cons_U71(z0, z1, z2), x1)) -> c18(X(U71(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U71(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_U72(z0, z1, z2), x1)) -> c18(X(U72(encArg(z0), encArg(z1), encArg(z2)), encArg(x1)), ENCARG(cons_U72(z0, z1, z2)), ENCARG(x1))
   ENCARG(cons_x(cons_x(z0, z1), x1)) -> c18(X(x(encArg(z0), encArg(z1)), encArg(x1)), ENCARG(cons_x(z0, z1)), ENCARG(x1))
   ENCARG(cons_x(x0, tt)) -> c18(X(encArg(x0), tt), ENCARG(x0))
   ENCARG(cons_x(x0, 0)) -> c18(X(encArg(x0), 0), ENCARG(x0))
   ENCARG(cons_x(tt, x1)) -> c18(X(tt, encArg(x1)), ENCARG(x1))
   ENCARG(cons_x(0, x1)) -> c18(X(0, encArg(x1)), ENCARG(x1))
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))
   MARK(s(U11(z0, z1))) -> c67(ACTIVE(s(active(U11(mark(z0), z1)))), S(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(s(tt)) -> c67(ACTIVE(s(active(tt))), S(mark(tt)), MARK(tt))
   MARK(s(U12(z0))) -> c67(ACTIVE(s(active(U12(mark(z0))))), S(mark(U12(z0))), MARK(U12(z0)))
   MARK(s(isNat(z0))) -> c67(ACTIVE(s(active(isNat(z0)))), S(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(s(U21(z0))) -> c67(ACTIVE(s(active(U21(mark(z0))))), S(mark(U21(z0))), MARK(U21(z0)))
   MARK(s(U31(z0, z1))) -> c67(ACTIVE(s(active(U31(mark(z0), z1)))), S(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(s(U32(z0))) -> c67(ACTIVE(s(active(U32(mark(z0))))), S(mark(U32(z0))), MARK(U32(z0)))
   MARK(s(U41(z0, z1))) -> c67(ACTIVE(s(active(U41(mark(z0), z1)))), S(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(s(U51(z0, z1, z2))) -> c67(ACTIVE(s(active(U51(mark(z0), z1, z2)))), S(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(s(U52(z0, z1, z2))) -> c67(ACTIVE(s(active(U52(mark(z0), z1, z2)))), S(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(s(s(z0))) -> c67(ACTIVE(s(active(s(mark(z0))))), S(mark(s(z0))), MARK(s(z0)))
   MARK(s(plus(z0, z1))) -> c67(ACTIVE(s(active(plus(mark(z0), mark(z1))))), S(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(s(U61(z0))) -> c67(ACTIVE(s(active(U61(mark(z0))))), S(mark(U61(z0))), MARK(U61(z0)))
   MARK(s(0)) -> c67(ACTIVE(s(active(0))), S(mark(0)), MARK(0))
   MARK(s(U71(z0, z1, z2))) -> c67(ACTIVE(s(active(U71(mark(z0), z1, z2)))), S(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(s(U72(z0, z1, z2))) -> c67(ACTIVE(s(active(U72(mark(z0), z1, z2)))), S(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(s(x(z0, z1))) -> c67(ACTIVE(s(active(x(mark(z0), mark(z1))))), S(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(s(z0)) -> c67(S(mark(z0)), MARK(z0))
   MARK(plus(z0, x1)) -> c68(ACTIVE(plus(z0, mark(x1))), PLUS(mark(z0), mark(x1)), MARK(z0), MARK(x1))
   MARK(plus(x0, z1)) -> c68(ACTIVE(plus(mark(x0), z1)), PLUS(mark(x0), mark(z1)), MARK(x0), MARK(z1))
   MARK(plus(x0, U11(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U11(mark(z0), z1)))), PLUS(mark(x0), mark(U11(z0, z1))), MARK(x0), MARK(U11(z0, z1)))
   MARK(plus(x0, tt)) -> c68(ACTIVE(plus(mark(x0), active(tt))), PLUS(mark(x0), mark(tt)), MARK(x0), MARK(tt))
   MARK(plus(x0, U12(z0))) -> c68(ACTIVE(plus(mark(x0), active(U12(mark(z0))))), PLUS(mark(x0), mark(U12(z0))), MARK(x0), MARK(U12(z0)))
   MARK(plus(x0, isNat(z0))) -> c68(ACTIVE(plus(mark(x0), active(isNat(z0)))), PLUS(mark(x0), mark(isNat(z0))), MARK(x0), MARK(isNat(z0)))
   MARK(plus(x0, U21(z0))) -> c68(ACTIVE(plus(mark(x0), active(U21(mark(z0))))), PLUS(mark(x0), mark(U21(z0))), MARK(x0), MARK(U21(z0)))
   MARK(plus(x0, U31(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U31(mark(z0), z1)))), PLUS(mark(x0), mark(U31(z0, z1))), MARK(x0), MARK(U31(z0, z1)))
   MARK(plus(x0, U32(z0))) -> c68(ACTIVE(plus(mark(x0), active(U32(mark(z0))))), PLUS(mark(x0), mark(U32(z0))), MARK(x0), MARK(U32(z0)))
   MARK(plus(x0, U41(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U41(mark(z0), z1)))), PLUS(mark(x0), mark(U41(z0, z1))), MARK(x0), MARK(U41(z0, z1)))
   MARK(plus(x0, U51(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U51(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U51(z0, z1, z2))), MARK(x0), MARK(U51(z0, z1, z2)))
   MARK(plus(x0, U52(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U52(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U52(z0, z1, z2))), MARK(x0), MARK(U52(z0, z1, z2)))
   MARK(plus(x0, s(z0))) -> c68(ACTIVE(plus(mark(x0), active(s(mark(z0))))), PLUS(mark(x0), mark(s(z0))), MARK(x0), MARK(s(z0)))
   MARK(plus(x0, plus(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(plus(mark(z0), mark(z1))))), PLUS(mark(x0), mark(plus(z0, z1))), MARK(x0), MARK(plus(z0, z1)))
   MARK(plus(x0, U61(z0))) -> c68(ACTIVE(plus(mark(x0), active(U61(mark(z0))))), PLUS(mark(x0), mark(U61(z0))), MARK(x0), MARK(U61(z0)))
   MARK(plus(x0, 0)) -> c68(ACTIVE(plus(mark(x0), active(0))), PLUS(mark(x0), mark(0)), MARK(x0), MARK(0))
   MARK(plus(x0, U71(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U71(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U71(z0, z1, z2))), MARK(x0), MARK(U71(z0, z1, z2)))
   MARK(plus(x0, U72(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U72(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U72(z0, z1, z2))), MARK(x0), MARK(U72(z0, z1, z2)))
   MARK(plus(x0, x(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(x(mark(z0), mark(z1))))), PLUS(mark(x0), mark(x(z0, z1))), MARK(x0), MARK(x(z0, z1)))
   MARK(plus(U11(z0, z1), x1)) -> c68(ACTIVE(plus(active(U11(mark(z0), z1)), mark(x1))), PLUS(mark(U11(z0, z1)), mark(x1)), MARK(U11(z0, z1)), MARK(x1))
   MARK(plus(tt, x1)) -> c68(ACTIVE(plus(active(tt), mark(x1))), PLUS(mark(tt), mark(x1)), MARK(tt), MARK(x1))
   MARK(plus(U12(z0), x1)) -> c68(ACTIVE(plus(active(U12(mark(z0))), mark(x1))), PLUS(mark(U12(z0)), mark(x1)), MARK(U12(z0)), MARK(x1))
   MARK(plus(isNat(z0), x1)) -> c68(ACTIVE(plus(active(isNat(z0)), mark(x1))), PLUS(mark(isNat(z0)), mark(x1)), MARK(isNat(z0)), MARK(x1))
   MARK(plus(U21(z0), x1)) -> c68(ACTIVE(plus(active(U21(mark(z0))), mark(x1))), PLUS(mark(U21(z0)), mark(x1)), MARK(U21(z0)), MARK(x1))
   MARK(plus(U31(z0, z1), x1)) -> c68(ACTIVE(plus(active(U31(mark(z0), z1)), mark(x1))), PLUS(mark(U31(z0, z1)), mark(x1)), MARK(U31(z0, z1)), MARK(x1))
   MARK(plus(U32(z0), x1)) -> c68(ACTIVE(plus(active(U32(mark(z0))), mark(x1))), PLUS(mark(U32(z0)), mark(x1)), MARK(U32(z0)), MARK(x1))
   MARK(plus(U41(z0, z1), x1)) -> c68(ACTIVE(plus(active(U41(mark(z0), z1)), mark(x1))), PLUS(mark(U41(z0, z1)), mark(x1)), MARK(U41(z0, z1)), MARK(x1))
   MARK(plus(U51(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U51(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U51(z0, z1, z2)), mark(x1)), MARK(U51(z0, z1, z2)), MARK(x1))
   MARK(plus(U52(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U52(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U52(z0, z1, z2)), mark(x1)), MARK(U52(z0, z1, z2)), MARK(x1))
   MARK(plus(s(z0), x1)) -> c68(ACTIVE(plus(active(s(mark(z0))), mark(x1))), PLUS(mark(s(z0)), mark(x1)), MARK(s(z0)), MARK(x1))
   MARK(plus(plus(z0, z1), x1)) -> c68(ACTIVE(plus(active(plus(mark(z0), mark(z1))), mark(x1))), PLUS(mark(plus(z0, z1)), mark(x1)), MARK(plus(z0, z1)), MARK(x1))
   MARK(plus(U61(z0), x1)) -> c68(ACTIVE(plus(active(U61(mark(z0))), mark(x1))), PLUS(mark(U61(z0)), mark(x1)), MARK(U61(z0)), MARK(x1))
   MARK(plus(0, x1)) -> c68(ACTIVE(plus(active(0), mark(x1))), PLUS(mark(0), mark(x1)), MARK(0), MARK(x1))
   MARK(plus(U71(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U71(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U71(z0, z1, z2)), mark(x1)), MARK(U71(z0, z1, z2)), MARK(x1))
   MARK(plus(U72(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U72(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U72(z0, z1, z2)), mark(x1)), MARK(U72(z0, z1, z2)), MARK(x1))
   MARK(plus(x(z0, z1), x1)) -> c68(ACTIVE(plus(active(x(mark(z0), mark(z1))), mark(x1))), PLUS(mark(x(z0, z1)), mark(x1)), MARK(x(z0, z1)), MARK(x1))
S tuples:
   ACTIVE(U12(tt)) -> c39(MARK(tt))
   ACTIVE(U21(tt)) -> c40(MARK(tt))
   ACTIVE(U32(tt)) -> c42(MARK(tt))
   ACTIVE(U41(tt, z0)) -> c43(MARK(z0))
   ACTIVE(U51(tt, z0, z1)) -> c44(MARK(U52(isNat(z1), z0, z1)), U52'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(U61(tt)) -> c46(MARK(0))
   ACTIVE(U71(tt, z0, z1)) -> c47(MARK(U72(isNat(z1), z0, z1)), U72'(isNat(z1), z0, z1), ISNAT(z1))
   ACTIVE(isNat(0)) -> c49(MARK(tt))
   ACTIVE(isNat(plus(z0, z1))) -> c50(MARK(U11(isNat(z0), z1)), U11'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(isNat(x(z0, z1))) -> c52(MARK(U31(isNat(z0), z1)), U31'(isNat(z0), z1), ISNAT(z0))
   ACTIVE(plus(z0, s(z1))) -> c54(MARK(U51(isNat(z1), z1, z0)), U51'(isNat(z1), z1, z0), ISNAT(z1))
   ACTIVE(x(z0, s(z1))) -> c56(MARK(U71(isNat(z1), z1, z0)), U71'(isNat(z1), z1, z0), ISNAT(z1))
   MARK(isNat(z0)) -> c60(ACTIVE(isNat(z0)), ISNAT(z0))
   MARK(U61(z0)) -> c69(ACTIVE(U61(mark(z0))), U61'(mark(z0)), MARK(z0))
   MARK(U71(z0, z1, z2)) -> c71(ACTIVE(U71(mark(z0), z1, z2)), U71'(mark(z0), z1, z2), MARK(z0))
   MARK(U72(z0, z1, z2)) -> c72(ACTIVE(U72(mark(z0), z1, z2)), U72'(mark(z0), z1, z2), MARK(z0))
   MARK(x(z0, z1)) -> c73(ACTIVE(x(mark(z0), mark(z1))), X(mark(z0), mark(z1)), MARK(z0), MARK(z1))
   U11'(mark(z0), z1) -> c74(U11'(z0, z1))
   U11'(z0, mark(z1)) -> c75(U11'(z0, z1))
   U11'(active(z0), z1) -> c76(U11'(z0, z1))
   U11'(z0, active(z1)) -> c77(U11'(z0, z1))
   U12'(mark(z0)) -> c78(U12'(z0))
   U12'(active(z0)) -> c79(U12'(z0))
   ISNAT(mark(z0)) -> c80(ISNAT(z0))
   ISNAT(active(z0)) -> c81(ISNAT(z0))
   U21'(mark(z0)) -> c82(U21'(z0))
   U21'(active(z0)) -> c83(U21'(z0))
   U31'(mark(z0), z1) -> c84(U31'(z0, z1))
   U31'(z0, mark(z1)) -> c85(U31'(z0, z1))
   U31'(active(z0), z1) -> c86(U31'(z0, z1))
   U31'(z0, active(z1)) -> c87(U31'(z0, z1))
   U32'(mark(z0)) -> c88(U32'(z0))
   U32'(active(z0)) -> c89(U32'(z0))
   U41'(mark(z0), z1) -> c90(U41'(z0, z1))
   U41'(z0, mark(z1)) -> c91(U41'(z0, z1))
   U41'(active(z0), z1) -> c92(U41'(z0, z1))
   U41'(z0, active(z1)) -> c93(U41'(z0, z1))
   U51'(mark(z0), z1, z2) -> c94(U51'(z0, z1, z2))
   U51'(z0, mark(z1), z2) -> c95(U51'(z0, z1, z2))
   U51'(z0, z1, mark(z2)) -> c96(U51'(z0, z1, z2))
   U51'(active(z0), z1, z2) -> c97(U51'(z0, z1, z2))
   U51'(z0, active(z1), z2) -> c98(U51'(z0, z1, z2))
   U51'(z0, z1, active(z2)) -> c99(U51'(z0, z1, z2))
   U52'(mark(z0), z1, z2) -> c100(U52'(z0, z1, z2))
   U52'(z0, mark(z1), z2) -> c101(U52'(z0, z1, z2))
   U52'(z0, z1, mark(z2)) -> c102(U52'(z0, z1, z2))
   U52'(active(z0), z1, z2) -> c103(U52'(z0, z1, z2))
   U52'(z0, active(z1), z2) -> c104(U52'(z0, z1, z2))
   U52'(z0, z1, active(z2)) -> c105(U52'(z0, z1, z2))
   S(mark(z0)) -> c106(S(z0))
   S(active(z0)) -> c107(S(z0))
   PLUS(mark(z0), z1) -> c108(PLUS(z0, z1))
   PLUS(z0, mark(z1)) -> c109(PLUS(z0, z1))
   PLUS(active(z0), z1) -> c110(PLUS(z0, z1))
   PLUS(z0, active(z1)) -> c111(PLUS(z0, z1))
   U61'(mark(z0)) -> c112(U61'(z0))
   U61'(active(z0)) -> c113(U61'(z0))
   U71'(mark(z0), z1, z2) -> c114(U71'(z0, z1, z2))
   U71'(z0, mark(z1), z2) -> c115(U71'(z0, z1, z2))
   U71'(z0, z1, mark(z2)) -> c116(U71'(z0, z1, z2))
   U71'(active(z0), z1, z2) -> c117(U71'(z0, z1, z2))
   U71'(z0, active(z1), z2) -> c118(U71'(z0, z1, z2))
   U71'(z0, z1, active(z2)) -> c119(U71'(z0, z1, z2))
   U72'(mark(z0), z1, z2) -> c120(U72'(z0, z1, z2))
   U72'(z0, mark(z1), z2) -> c121(U72'(z0, z1, z2))
   U72'(z0, z1, mark(z2)) -> c122(U72'(z0, z1, z2))
   U72'(active(z0), z1, z2) -> c123(U72'(z0, z1, z2))
   U72'(z0, active(z1), z2) -> c124(U72'(z0, z1, z2))
   U72'(z0, z1, active(z2)) -> c125(U72'(z0, z1, z2))
   X(mark(z0), z1) -> c126(X(z0, z1))
   X(z0, mark(z1)) -> c127(X(z0, z1))
   X(active(z0), z1) -> c128(X(z0, z1))
   X(z0, active(z1)) -> c129(X(z0, z1))
   ACTIVE(U11(tt, z0)) -> c38(MARK(U12(isNat(z0))), ISNAT(z0))
   ACTIVE(U31(tt, z0)) -> c41(MARK(U32(isNat(z0))), ISNAT(z0))
   ACTIVE(U52(tt, z0, z1)) -> c45(MARK(s(plus(z1, z0))), PLUS(z1, z0))
   ACTIVE(U72(tt, z0, z1)) -> c48(MARK(plus(x(z1, z0), z1)), X(z1, z0))
   ACTIVE(isNat(s(z0))) -> c51(MARK(U21(isNat(z0))), ISNAT(z0))
   ACTIVE(plus(z0, 0)) -> c53(MARK(U41(isNat(z0), z0)), ISNAT(z0))
   ACTIVE(x(z0, 0)) -> c55(MARK(U61(isNat(z0))), ISNAT(z0))
   MARK(tt) -> c58
   MARK(0) -> c70
   MARK(U11(z0, z1)) -> c57(ACTIVE(U11(z0, z1)), U11'(mark(z0), z1), MARK(z0))
   MARK(U11(U11(z0, z1), x1)) -> c57(ACTIVE(U11(active(U11(mark(z0), z1)), x1)), U11'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U11(tt, x1)) -> c57(ACTIVE(U11(active(tt), x1)), U11'(mark(tt), x1), MARK(tt))
   MARK(U11(U12(z0), x1)) -> c57(ACTIVE(U11(active(U12(mark(z0))), x1)), U11'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U11(isNat(z0), x1)) -> c57(ACTIVE(U11(active(isNat(z0)), x1)), U11'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U11(U21(z0), x1)) -> c57(ACTIVE(U11(active(U21(mark(z0))), x1)), U11'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U11(U31(z0, z1), x1)) -> c57(ACTIVE(U11(active(U31(mark(z0), z1)), x1)), U11'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U11(U32(z0), x1)) -> c57(ACTIVE(U11(active(U32(mark(z0))), x1)), U11'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U11(U41(z0, z1), x1)) -> c57(ACTIVE(U11(active(U41(mark(z0), z1)), x1)), U11'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U11(U51(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U51(mark(z0), z1, z2)), x1)), U11'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U11(U52(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U52(mark(z0), z1, z2)), x1)), U11'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U11(s(z0), x1)) -> c57(ACTIVE(U11(active(s(mark(z0))), x1)), U11'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U11(plus(z0, z1), x1)) -> c57(ACTIVE(U11(active(plus(mark(z0), mark(z1))), x1)), U11'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U11(U61(z0), x1)) -> c57(ACTIVE(U11(active(U61(mark(z0))), x1)), U11'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U11(0, x1)) -> c57(ACTIVE(U11(active(0), x1)), U11'(mark(0), x1), MARK(0))
   MARK(U11(U71(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U71(mark(z0), z1, z2)), x1)), U11'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U11(U72(z0, z1, z2), x1)) -> c57(ACTIVE(U11(active(U72(mark(z0), z1, z2)), x1)), U11'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U11(x(z0, z1), x1)) -> c57(ACTIVE(U11(active(x(mark(z0), mark(z1))), x1)), U11'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U11(x0, x1)) -> c57(U11'(mark(x0), x1))
   MARK(U12(z0)) -> c59(ACTIVE(U12(z0)), U12'(mark(z0)), MARK(z0))
   MARK(U12(U11(z0, z1))) -> c59(ACTIVE(U12(active(U11(mark(z0), z1)))), U12'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U12(tt)) -> c59(ACTIVE(U12(active(tt))), U12'(mark(tt)), MARK(tt))
   MARK(U12(U12(z0))) -> c59(ACTIVE(U12(active(U12(mark(z0))))), U12'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U12(isNat(z0))) -> c59(ACTIVE(U12(active(isNat(z0)))), U12'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U12(U21(z0))) -> c59(ACTIVE(U12(active(U21(mark(z0))))), U12'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U12(U31(z0, z1))) -> c59(ACTIVE(U12(active(U31(mark(z0), z1)))), U12'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U12(U32(z0))) -> c59(ACTIVE(U12(active(U32(mark(z0))))), U12'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U12(U41(z0, z1))) -> c59(ACTIVE(U12(active(U41(mark(z0), z1)))), U12'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U12(U51(z0, z1, z2))) -> c59(ACTIVE(U12(active(U51(mark(z0), z1, z2)))), U12'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U12(U52(z0, z1, z2))) -> c59(ACTIVE(U12(active(U52(mark(z0), z1, z2)))), U12'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U12(s(z0))) -> c59(ACTIVE(U12(active(s(mark(z0))))), U12'(mark(s(z0))), MARK(s(z0)))
   MARK(U12(plus(z0, z1))) -> c59(ACTIVE(U12(active(plus(mark(z0), mark(z1))))), U12'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U12(U61(z0))) -> c59(ACTIVE(U12(active(U61(mark(z0))))), U12'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U12(0)) -> c59(ACTIVE(U12(active(0))), U12'(mark(0)), MARK(0))
   MARK(U12(U71(z0, z1, z2))) -> c59(ACTIVE(U12(active(U71(mark(z0), z1, z2)))), U12'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U12(U72(z0, z1, z2))) -> c59(ACTIVE(U12(active(U72(mark(z0), z1, z2)))), U12'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U12(x(z0, z1))) -> c59(ACTIVE(U12(active(x(mark(z0), mark(z1))))), U12'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U21(z0)) -> c61(ACTIVE(U21(z0)), U21'(mark(z0)), MARK(z0))
   MARK(U21(U11(z0, z1))) -> c61(ACTIVE(U21(active(U11(mark(z0), z1)))), U21'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U21(tt)) -> c61(ACTIVE(U21(active(tt))), U21'(mark(tt)), MARK(tt))
   MARK(U21(U12(z0))) -> c61(ACTIVE(U21(active(U12(mark(z0))))), U21'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U21(isNat(z0))) -> c61(ACTIVE(U21(active(isNat(z0)))), U21'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U21(U21(z0))) -> c61(ACTIVE(U21(active(U21(mark(z0))))), U21'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U21(U31(z0, z1))) -> c61(ACTIVE(U21(active(U31(mark(z0), z1)))), U21'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U21(U32(z0))) -> c61(ACTIVE(U21(active(U32(mark(z0))))), U21'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U21(U41(z0, z1))) -> c61(ACTIVE(U21(active(U41(mark(z0), z1)))), U21'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U21(U51(z0, z1, z2))) -> c61(ACTIVE(U21(active(U51(mark(z0), z1, z2)))), U21'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U21(U52(z0, z1, z2))) -> c61(ACTIVE(U21(active(U52(mark(z0), z1, z2)))), U21'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U21(s(z0))) -> c61(ACTIVE(U21(active(s(mark(z0))))), U21'(mark(s(z0))), MARK(s(z0)))
   MARK(U21(plus(z0, z1))) -> c61(ACTIVE(U21(active(plus(mark(z0), mark(z1))))), U21'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U21(U61(z0))) -> c61(ACTIVE(U21(active(U61(mark(z0))))), U21'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U21(0)) -> c61(ACTIVE(U21(active(0))), U21'(mark(0)), MARK(0))
   MARK(U21(U71(z0, z1, z2))) -> c61(ACTIVE(U21(active(U71(mark(z0), z1, z2)))), U21'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U21(U72(z0, z1, z2))) -> c61(ACTIVE(U21(active(U72(mark(z0), z1, z2)))), U21'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U21(x(z0, z1))) -> c61(ACTIVE(U21(active(x(mark(z0), mark(z1))))), U21'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U31(z0, z1)) -> c62(ACTIVE(U31(z0, z1)), U31'(mark(z0), z1), MARK(z0))
   MARK(U31(U11(z0, z1), x1)) -> c62(ACTIVE(U31(active(U11(mark(z0), z1)), x1)), U31'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U31(tt, x1)) -> c62(ACTIVE(U31(active(tt), x1)), U31'(mark(tt), x1), MARK(tt))
   MARK(U31(U12(z0), x1)) -> c62(ACTIVE(U31(active(U12(mark(z0))), x1)), U31'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U31(isNat(z0), x1)) -> c62(ACTIVE(U31(active(isNat(z0)), x1)), U31'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U31(U21(z0), x1)) -> c62(ACTIVE(U31(active(U21(mark(z0))), x1)), U31'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U31(U31(z0, z1), x1)) -> c62(ACTIVE(U31(active(U31(mark(z0), z1)), x1)), U31'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U31(U32(z0), x1)) -> c62(ACTIVE(U31(active(U32(mark(z0))), x1)), U31'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U31(U41(z0, z1), x1)) -> c62(ACTIVE(U31(active(U41(mark(z0), z1)), x1)), U31'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U31(U51(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U51(mark(z0), z1, z2)), x1)), U31'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U31(U52(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U52(mark(z0), z1, z2)), x1)), U31'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U31(s(z0), x1)) -> c62(ACTIVE(U31(active(s(mark(z0))), x1)), U31'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U31(plus(z0, z1), x1)) -> c62(ACTIVE(U31(active(plus(mark(z0), mark(z1))), x1)), U31'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U31(U61(z0), x1)) -> c62(ACTIVE(U31(active(U61(mark(z0))), x1)), U31'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U31(0, x1)) -> c62(ACTIVE(U31(active(0), x1)), U31'(mark(0), x1), MARK(0))
   MARK(U31(U71(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U71(mark(z0), z1, z2)), x1)), U31'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U31(U72(z0, z1, z2), x1)) -> c62(ACTIVE(U31(active(U72(mark(z0), z1, z2)), x1)), U31'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U31(x(z0, z1), x1)) -> c62(ACTIVE(U31(active(x(mark(z0), mark(z1))), x1)), U31'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U31(x0, x1)) -> c62(U31'(mark(x0), x1))
   MARK(U32(z0)) -> c63(ACTIVE(U32(z0)), U32'(mark(z0)), MARK(z0))
   MARK(U32(U11(z0, z1))) -> c63(ACTIVE(U32(active(U11(mark(z0), z1)))), U32'(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(U32(tt)) -> c63(ACTIVE(U32(active(tt))), U32'(mark(tt)), MARK(tt))
   MARK(U32(U12(z0))) -> c63(ACTIVE(U32(active(U12(mark(z0))))), U32'(mark(U12(z0))), MARK(U12(z0)))
   MARK(U32(isNat(z0))) -> c63(ACTIVE(U32(active(isNat(z0)))), U32'(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(U32(U21(z0))) -> c63(ACTIVE(U32(active(U21(mark(z0))))), U32'(mark(U21(z0))), MARK(U21(z0)))
   MARK(U32(U31(z0, z1))) -> c63(ACTIVE(U32(active(U31(mark(z0), z1)))), U32'(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(U32(U32(z0))) -> c63(ACTIVE(U32(active(U32(mark(z0))))), U32'(mark(U32(z0))), MARK(U32(z0)))
   MARK(U32(U41(z0, z1))) -> c63(ACTIVE(U32(active(U41(mark(z0), z1)))), U32'(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(U32(U51(z0, z1, z2))) -> c63(ACTIVE(U32(active(U51(mark(z0), z1, z2)))), U32'(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(U32(U52(z0, z1, z2))) -> c63(ACTIVE(U32(active(U52(mark(z0), z1, z2)))), U32'(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(U32(s(z0))) -> c63(ACTIVE(U32(active(s(mark(z0))))), U32'(mark(s(z0))), MARK(s(z0)))
   MARK(U32(plus(z0, z1))) -> c63(ACTIVE(U32(active(plus(mark(z0), mark(z1))))), U32'(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(U32(U61(z0))) -> c63(ACTIVE(U32(active(U61(mark(z0))))), U32'(mark(U61(z0))), MARK(U61(z0)))
   MARK(U32(0)) -> c63(ACTIVE(U32(active(0))), U32'(mark(0)), MARK(0))
   MARK(U32(U71(z0, z1, z2))) -> c63(ACTIVE(U32(active(U71(mark(z0), z1, z2)))), U32'(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(U32(U72(z0, z1, z2))) -> c63(ACTIVE(U32(active(U72(mark(z0), z1, z2)))), U32'(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(U32(x(z0, z1))) -> c63(ACTIVE(U32(active(x(mark(z0), mark(z1))))), U32'(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(U41(z0, z1)) -> c64(ACTIVE(U41(z0, z1)), U41'(mark(z0), z1), MARK(z0))
   MARK(U41(U11(z0, z1), x1)) -> c64(ACTIVE(U41(active(U11(mark(z0), z1)), x1)), U41'(mark(U11(z0, z1)), x1), MARK(U11(z0, z1)))
   MARK(U41(tt, x1)) -> c64(ACTIVE(U41(active(tt), x1)), U41'(mark(tt), x1), MARK(tt))
   MARK(U41(U12(z0), x1)) -> c64(ACTIVE(U41(active(U12(mark(z0))), x1)), U41'(mark(U12(z0)), x1), MARK(U12(z0)))
   MARK(U41(isNat(z0), x1)) -> c64(ACTIVE(U41(active(isNat(z0)), x1)), U41'(mark(isNat(z0)), x1), MARK(isNat(z0)))
   MARK(U41(U21(z0), x1)) -> c64(ACTIVE(U41(active(U21(mark(z0))), x1)), U41'(mark(U21(z0)), x1), MARK(U21(z0)))
   MARK(U41(U31(z0, z1), x1)) -> c64(ACTIVE(U41(active(U31(mark(z0), z1)), x1)), U41'(mark(U31(z0, z1)), x1), MARK(U31(z0, z1)))
   MARK(U41(U32(z0), x1)) -> c64(ACTIVE(U41(active(U32(mark(z0))), x1)), U41'(mark(U32(z0)), x1), MARK(U32(z0)))
   MARK(U41(U41(z0, z1), x1)) -> c64(ACTIVE(U41(active(U41(mark(z0), z1)), x1)), U41'(mark(U41(z0, z1)), x1), MARK(U41(z0, z1)))
   MARK(U41(U51(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U51(mark(z0), z1, z2)), x1)), U41'(mark(U51(z0, z1, z2)), x1), MARK(U51(z0, z1, z2)))
   MARK(U41(U52(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U52(mark(z0), z1, z2)), x1)), U41'(mark(U52(z0, z1, z2)), x1), MARK(U52(z0, z1, z2)))
   MARK(U41(s(z0), x1)) -> c64(ACTIVE(U41(active(s(mark(z0))), x1)), U41'(mark(s(z0)), x1), MARK(s(z0)))
   MARK(U41(plus(z0, z1), x1)) -> c64(ACTIVE(U41(active(plus(mark(z0), mark(z1))), x1)), U41'(mark(plus(z0, z1)), x1), MARK(plus(z0, z1)))
   MARK(U41(U61(z0), x1)) -> c64(ACTIVE(U41(active(U61(mark(z0))), x1)), U41'(mark(U61(z0)), x1), MARK(U61(z0)))
   MARK(U41(0, x1)) -> c64(ACTIVE(U41(active(0), x1)), U41'(mark(0), x1), MARK(0))
   MARK(U41(U71(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U71(mark(z0), z1, z2)), x1)), U41'(mark(U71(z0, z1, z2)), x1), MARK(U71(z0, z1, z2)))
   MARK(U41(U72(z0, z1, z2), x1)) -> c64(ACTIVE(U41(active(U72(mark(z0), z1, z2)), x1)), U41'(mark(U72(z0, z1, z2)), x1), MARK(U72(z0, z1, z2)))
   MARK(U41(x(z0, z1), x1)) -> c64(ACTIVE(U41(active(x(mark(z0), mark(z1))), x1)), U41'(mark(x(z0, z1)), x1), MARK(x(z0, z1)))
   MARK(U41(x0, x1)) -> c64(U41'(mark(x0), x1))
   MARK(U51(z0, z1, z2)) -> c65(ACTIVE(U51(z0, z1, z2)), U51'(mark(z0), z1, z2), MARK(z0))
   MARK(U51(U11(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U11(mark(z0), z1)), x1, x2)), U51'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U51(tt, x1, x2)) -> c65(ACTIVE(U51(active(tt), x1, x2)), U51'(mark(tt), x1, x2), MARK(tt))
   MARK(U51(U12(z0), x1, x2)) -> c65(ACTIVE(U51(active(U12(mark(z0))), x1, x2)), U51'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U51(isNat(z0), x1, x2)) -> c65(ACTIVE(U51(active(isNat(z0)), x1, x2)), U51'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U51(U21(z0), x1, x2)) -> c65(ACTIVE(U51(active(U21(mark(z0))), x1, x2)), U51'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U51(U31(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U31(mark(z0), z1)), x1, x2)), U51'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U51(U32(z0), x1, x2)) -> c65(ACTIVE(U51(active(U32(mark(z0))), x1, x2)), U51'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U51(U41(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(U41(mark(z0), z1)), x1, x2)), U51'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U51(U51(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U51(mark(z0), z1, z2)), x1, x2)), U51'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U51(U52(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U52(mark(z0), z1, z2)), x1, x2)), U51'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U51(s(z0), x1, x2)) -> c65(ACTIVE(U51(active(s(mark(z0))), x1, x2)), U51'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U51(plus(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(plus(mark(z0), mark(z1))), x1, x2)), U51'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U51(U61(z0), x1, x2)) -> c65(ACTIVE(U51(active(U61(mark(z0))), x1, x2)), U51'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U51(0, x1, x2)) -> c65(ACTIVE(U51(active(0), x1, x2)), U51'(mark(0), x1, x2), MARK(0))
   MARK(U51(U71(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U71(mark(z0), z1, z2)), x1, x2)), U51'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U51(U72(z0, z1, z2), x1, x2)) -> c65(ACTIVE(U51(active(U72(mark(z0), z1, z2)), x1, x2)), U51'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U51(x(z0, z1), x1, x2)) -> c65(ACTIVE(U51(active(x(mark(z0), mark(z1))), x1, x2)), U51'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U51(x0, x1, x2)) -> c65(U51'(mark(x0), x1, x2))
   MARK(U52(z0, z1, z2)) -> c66(ACTIVE(U52(z0, z1, z2)), U52'(mark(z0), z1, z2), MARK(z0))
   MARK(U52(U11(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U11(mark(z0), z1)), x1, x2)), U52'(mark(U11(z0, z1)), x1, x2), MARK(U11(z0, z1)))
   MARK(U52(tt, x1, x2)) -> c66(ACTIVE(U52(active(tt), x1, x2)), U52'(mark(tt), x1, x2), MARK(tt))
   MARK(U52(U12(z0), x1, x2)) -> c66(ACTIVE(U52(active(U12(mark(z0))), x1, x2)), U52'(mark(U12(z0)), x1, x2), MARK(U12(z0)))
   MARK(U52(isNat(z0), x1, x2)) -> c66(ACTIVE(U52(active(isNat(z0)), x1, x2)), U52'(mark(isNat(z0)), x1, x2), MARK(isNat(z0)))
   MARK(U52(U21(z0), x1, x2)) -> c66(ACTIVE(U52(active(U21(mark(z0))), x1, x2)), U52'(mark(U21(z0)), x1, x2), MARK(U21(z0)))
   MARK(U52(U31(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U31(mark(z0), z1)), x1, x2)), U52'(mark(U31(z0, z1)), x1, x2), MARK(U31(z0, z1)))
   MARK(U52(U32(z0), x1, x2)) -> c66(ACTIVE(U52(active(U32(mark(z0))), x1, x2)), U52'(mark(U32(z0)), x1, x2), MARK(U32(z0)))
   MARK(U52(U41(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(U41(mark(z0), z1)), x1, x2)), U52'(mark(U41(z0, z1)), x1, x2), MARK(U41(z0, z1)))
   MARK(U52(U51(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U51(mark(z0), z1, z2)), x1, x2)), U52'(mark(U51(z0, z1, z2)), x1, x2), MARK(U51(z0, z1, z2)))
   MARK(U52(U52(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U52(mark(z0), z1, z2)), x1, x2)), U52'(mark(U52(z0, z1, z2)), x1, x2), MARK(U52(z0, z1, z2)))
   MARK(U52(s(z0), x1, x2)) -> c66(ACTIVE(U52(active(s(mark(z0))), x1, x2)), U52'(mark(s(z0)), x1, x2), MARK(s(z0)))
   MARK(U52(plus(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(plus(mark(z0), mark(z1))), x1, x2)), U52'(mark(plus(z0, z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U52(U61(z0), x1, x2)) -> c66(ACTIVE(U52(active(U61(mark(z0))), x1, x2)), U52'(mark(U61(z0)), x1, x2), MARK(U61(z0)))
   MARK(U52(0, x1, x2)) -> c66(ACTIVE(U52(active(0), x1, x2)), U52'(mark(0), x1, x2), MARK(0))
   MARK(U52(U71(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U71(mark(z0), z1, z2)), x1, x2)), U52'(mark(U71(z0, z1, z2)), x1, x2), MARK(U71(z0, z1, z2)))
   MARK(U52(U72(z0, z1, z2), x1, x2)) -> c66(ACTIVE(U52(active(U72(mark(z0), z1, z2)), x1, x2)), U52'(mark(U72(z0, z1, z2)), x1, x2), MARK(U72(z0, z1, z2)))
   MARK(U52(x(z0, z1), x1, x2)) -> c66(ACTIVE(U52(active(x(mark(z0), mark(z1))), x1, x2)), U52'(mark(x(z0, z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U52(x0, x1, x2)) -> c66(U52'(mark(x0), x1, x2))
   MARK(s(U11(z0, z1))) -> c67(ACTIVE(s(active(U11(mark(z0), z1)))), S(mark(U11(z0, z1))), MARK(U11(z0, z1)))
   MARK(s(tt)) -> c67(ACTIVE(s(active(tt))), S(mark(tt)), MARK(tt))
   MARK(s(U12(z0))) -> c67(ACTIVE(s(active(U12(mark(z0))))), S(mark(U12(z0))), MARK(U12(z0)))
   MARK(s(isNat(z0))) -> c67(ACTIVE(s(active(isNat(z0)))), S(mark(isNat(z0))), MARK(isNat(z0)))
   MARK(s(U21(z0))) -> c67(ACTIVE(s(active(U21(mark(z0))))), S(mark(U21(z0))), MARK(U21(z0)))
   MARK(s(U31(z0, z1))) -> c67(ACTIVE(s(active(U31(mark(z0), z1)))), S(mark(U31(z0, z1))), MARK(U31(z0, z1)))
   MARK(s(U32(z0))) -> c67(ACTIVE(s(active(U32(mark(z0))))), S(mark(U32(z0))), MARK(U32(z0)))
   MARK(s(U41(z0, z1))) -> c67(ACTIVE(s(active(U41(mark(z0), z1)))), S(mark(U41(z0, z1))), MARK(U41(z0, z1)))
   MARK(s(U51(z0, z1, z2))) -> c67(ACTIVE(s(active(U51(mark(z0), z1, z2)))), S(mark(U51(z0, z1, z2))), MARK(U51(z0, z1, z2)))
   MARK(s(U52(z0, z1, z2))) -> c67(ACTIVE(s(active(U52(mark(z0), z1, z2)))), S(mark(U52(z0, z1, z2))), MARK(U52(z0, z1, z2)))
   MARK(s(s(z0))) -> c67(ACTIVE(s(active(s(mark(z0))))), S(mark(s(z0))), MARK(s(z0)))
   MARK(s(plus(z0, z1))) -> c67(ACTIVE(s(active(plus(mark(z0), mark(z1))))), S(mark(plus(z0, z1))), MARK(plus(z0, z1)))
   MARK(s(U61(z0))) -> c67(ACTIVE(s(active(U61(mark(z0))))), S(mark(U61(z0))), MARK(U61(z0)))
   MARK(s(0)) -> c67(ACTIVE(s(active(0))), S(mark(0)), MARK(0))
   MARK(s(U71(z0, z1, z2))) -> c67(ACTIVE(s(active(U71(mark(z0), z1, z2)))), S(mark(U71(z0, z1, z2))), MARK(U71(z0, z1, z2)))
   MARK(s(U72(z0, z1, z2))) -> c67(ACTIVE(s(active(U72(mark(z0), z1, z2)))), S(mark(U72(z0, z1, z2))), MARK(U72(z0, z1, z2)))
   MARK(s(x(z0, z1))) -> c67(ACTIVE(s(active(x(mark(z0), mark(z1))))), S(mark(x(z0, z1))), MARK(x(z0, z1)))
   MARK(s(z0)) -> c67(S(mark(z0)), MARK(z0))
   MARK(plus(z0, x1)) -> c68(ACTIVE(plus(z0, mark(x1))), PLUS(mark(z0), mark(x1)), MARK(z0), MARK(x1))
   MARK(plus(x0, z1)) -> c68(ACTIVE(plus(mark(x0), z1)), PLUS(mark(x0), mark(z1)), MARK(x0), MARK(z1))
   MARK(plus(x0, U11(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U11(mark(z0), z1)))), PLUS(mark(x0), mark(U11(z0, z1))), MARK(x0), MARK(U11(z0, z1)))
   MARK(plus(x0, tt)) -> c68(ACTIVE(plus(mark(x0), active(tt))), PLUS(mark(x0), mark(tt)), MARK(x0), MARK(tt))
   MARK(plus(x0, U12(z0))) -> c68(ACTIVE(plus(mark(x0), active(U12(mark(z0))))), PLUS(mark(x0), mark(U12(z0))), MARK(x0), MARK(U12(z0)))
   MARK(plus(x0, isNat(z0))) -> c68(ACTIVE(plus(mark(x0), active(isNat(z0)))), PLUS(mark(x0), mark(isNat(z0))), MARK(x0), MARK(isNat(z0)))
   MARK(plus(x0, U21(z0))) -> c68(ACTIVE(plus(mark(x0), active(U21(mark(z0))))), PLUS(mark(x0), mark(U21(z0))), MARK(x0), MARK(U21(z0)))
   MARK(plus(x0, U31(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U31(mark(z0), z1)))), PLUS(mark(x0), mark(U31(z0, z1))), MARK(x0), MARK(U31(z0, z1)))
   MARK(plus(x0, U32(z0))) -> c68(ACTIVE(plus(mark(x0), active(U32(mark(z0))))), PLUS(mark(x0), mark(U32(z0))), MARK(x0), MARK(U32(z0)))
   MARK(plus(x0, U41(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(U41(mark(z0), z1)))), PLUS(mark(x0), mark(U41(z0, z1))), MARK(x0), MARK(U41(z0, z1)))
   MARK(plus(x0, U51(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U51(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U51(z0, z1, z2))), MARK(x0), MARK(U51(z0, z1, z2)))
   MARK(plus(x0, U52(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U52(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U52(z0, z1, z2))), MARK(x0), MARK(U52(z0, z1, z2)))
   MARK(plus(x0, s(z0))) -> c68(ACTIVE(plus(mark(x0), active(s(mark(z0))))), PLUS(mark(x0), mark(s(z0))), MARK(x0), MARK(s(z0)))
   MARK(plus(x0, plus(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(plus(mark(z0), mark(z1))))), PLUS(mark(x0), mark(plus(z0, z1))), MARK(x0), MARK(plus(z0, z1)))
   MARK(plus(x0, U61(z0))) -> c68(ACTIVE(plus(mark(x0), active(U61(mark(z0))))), PLUS(mark(x0), mark(U61(z0))), MARK(x0), MARK(U61(z0)))
   MARK(plus(x0, 0)) -> c68(ACTIVE(plus(mark(x0), active(0))), PLUS(mark(x0), mark(0)), MARK(x0), MARK(0))
   MARK(plus(x0, U71(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U71(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U71(z0, z1, z2))), MARK(x0), MARK(U71(z0, z1, z2)))
   MARK(plus(x0, U72(z0, z1, z2))) -> c68(ACTIVE(plus(mark(x0), active(U72(mark(z0), z1, z2)))), PLUS(mark(x0), mark(U72(z0, z1, z2))), MARK(x0), MARK(U72(z0, z1, z2)))
   MARK(plus(x0, x(z0, z1))) -> c68(ACTIVE(plus(mark(x0), active(x(mark(z0), mark(z1))))), PLUS(mark(x0), mark(x(z0, z1))), MARK(x0), MARK(x(z0, z1)))
   MARK(plus(U11(z0, z1), x1)) -> c68(ACTIVE(plus(active(U11(mark(z0), z1)), mark(x1))), PLUS(mark(U11(z0, z1)), mark(x1)), MARK(U11(z0, z1)), MARK(x1))
   MARK(plus(tt, x1)) -> c68(ACTIVE(plus(active(tt), mark(x1))), PLUS(mark(tt), mark(x1)), MARK(tt), MARK(x1))
   MARK(plus(U12(z0), x1)) -> c68(ACTIVE(plus(active(U12(mark(z0))), mark(x1))), PLUS(mark(U12(z0)), mark(x1)), MARK(U12(z0)), MARK(x1))
   MARK(plus(isNat(z0), x1)) -> c68(ACTIVE(plus(active(isNat(z0)), mark(x1))), PLUS(mark(isNat(z0)), mark(x1)), MARK(isNat(z0)), MARK(x1))
   MARK(plus(U21(z0), x1)) -> c68(ACTIVE(plus(active(U21(mark(z0))), mark(x1))), PLUS(mark(U21(z0)), mark(x1)), MARK(U21(z0)), MARK(x1))
   MARK(plus(U31(z0, z1), x1)) -> c68(ACTIVE(plus(active(U31(mark(z0), z1)), mark(x1))), PLUS(mark(U31(z0, z1)), mark(x1)), MARK(U31(z0, z1)), MARK(x1))
   MARK(plus(U32(z0), x1)) -> c68(ACTIVE(plus(active(U32(mark(z0))), mark(x1))), PLUS(mark(U32(z0)), mark(x1)), MARK(U32(z0)), MARK(x1))
   MARK(plus(U41(z0, z1), x1)) -> c68(ACTIVE(plus(active(U41(mark(z0), z1)), mark(x1))), PLUS(mark(U41(z0, z1)), mark(x1)), MARK(U41(z0, z1)), MARK(x1))
   MARK(plus(U51(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U51(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U51(z0, z1, z2)), mark(x1)), MARK(U51(z0, z1, z2)), MARK(x1))
   MARK(plus(U52(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U52(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U52(z0, z1, z2)), mark(x1)), MARK(U52(z0, z1, z2)), MARK(x1))
   MARK(plus(s(z0), x1)) -> c68(ACTIVE(plus(active(s(mark(z0))), mark(x1))), PLUS(mark(s(z0)), mark(x1)), MARK(s(z0)), MARK(x1))
   MARK(plus(plus(z0, z1), x1)) -> c68(ACTIVE(plus(active(plus(mark(z0), mark(z1))), mark(x1))), PLUS(mark(plus(z0, z1)), mark(x1)), MARK(plus(z0, z1)), MARK(x1))
   MARK(plus(U61(z0), x1)) -> c68(ACTIVE(plus(active(U61(mark(z0))), mark(x1))), PLUS(mark(U61(z0)), mark(x1)), MARK(U61(z0)), MARK(x1))
   MARK(plus(0, x1)) -> c68(ACTIVE(plus(active(0), mark(x1))), PLUS(mark(0), mark(x1)), MARK(0), MARK(x1))
   MARK(plus(U71(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U71(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U71(z0, z1, z2)), mark(x1)), MARK(U71(z0, z1, z2)), MARK(x1))
   MARK(plus(U72(z0, z1, z2), x1)) -> c68(ACTIVE(plus(active(U72(mark(z0), z1, z2)), mark(x1))), PLUS(mark(U72(z0, z1, z2)), mark(x1)), MARK(U72(z0, z1, z2)), MARK(x1))
   MARK(plus(x(z0, z1), x1)) -> c68(ACTIVE(plus(active(x(mark(z0), mark(z1))), mark(x1))), PLUS(mark(x(z0, z1)), mark(x1)), MARK(x(z0, z1)), MARK(x1))
K tuples:none
Defined Rule Symbols:   encArg_1, active_1, mark_1, U11_2, U12_1, isNat_1, U21_1, U31_2, U32_1, U41_2, U51_3, U52_3, s_1, plus_2, U61_1, U71_3, U72_3, x_2

Defined Pair Symbols:   ACTIVE_1, MARK_1, U11'_2, U12'_1, ISNAT_1, U21'_1, U31'_2, U32'_1, U41'_2, U51'_3, U52'_3, S_1, PLUS_2, U61'_1, U71'_3, U72'_3, X_2, ENCODE_ACTIVE_1, ENCODE_U11_2, ENCODE_MARK_1, ENCODE_U12_1, ENCODE_ISNAT_1, ENCODE_U21_1, ENCODE_U31_2, ENCODE_U32_1, ENCODE_U41_2, ENCODE_U51_3, ENCODE_U52_3, ENCODE_S_1, ENCODE_PLUS_2, ENCODE_U61_1, ENCODE_U71_3, ENCODE_U72_3, ENCODE_X_2, ENCARG_1

Compound Symbols:   c39_1, c40_1, c42_1, c43_1, c44_3, c46_1, c47_3, c49_1, c50_3, c52_3, c54_3, c56_3, c60_2, c69_3, c71_3, c72_3, c73_4, c74_1, c75_1, c76_1, c77_1, c78_1, c79_1, c80_1, c81_1, c82_1, c83_1, c84_1, c85_1, c86_1, c87_1, c88_1, c89_1, c90_1, c91_1, c92_1, c93_1, c94_1, c95_1, c96_1, c97_1, c98_1, c99_1, c100_1, c101_1, c102_1, c103_1, c104_1, c105_1, c106_1, c107_1, c108_1, c109_1, c110_1, c111_1, c112_1, c113_1, c114_1, c115_1, c116_1, c117_1, c118_1, c119_1, c120_1, c121_1, c122_1, c123_1, c124_1, c125_1, c126_1, c127_1, c128_1, c129_1, c38_2, c41_2, c45_2, c48_2, c51_2, c53_2, c55_2, c58, c70, c_1, c2_2, c3_2, c3_1, c4_3, c4_2, c5_2, c6_2, c7_2, c8_3, c8_2, c9_2, c10_3, c10_2, c11_4, c11_3, c12_4, c12_3, c13_2, c14_3, c14_2, c15_2, c16_4, c16_3, c17_4, c17_3, c18_3, c18_2, c57_3, c57_1, c59_3, c61_3, c62_3, c62_1, c63_3, c64_3, c64_1, c65_3, c65_1, c66_3, c66_1, c67_3, c67_2, c68_4