YES proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Termination w.r.t. Q of the given QTRS could be proven: (0) QTRS (1) QTRSToCSRProof [SOUND, 0 ms] (2) CSR (3) CSRRRRProof [EQUIVALENT, 117 ms] (4) CSR (5) CSRRRRProof [EQUIVALENT, 21 ms] (6) CSR (7) CSRRRRProof [EQUIVALENT, 0 ms] (8) CSR (9) CSRRRRProof [EQUIVALENT, 1 ms] (10) CSR (11) CSRRRRProof [EQUIVALENT, 13 ms] (12) CSR (13) CSRRRRProof [EQUIVALENT, 12 ms] (14) CSR (15) CSRRRRProof [EQUIVALENT, 12 ms] (16) CSR (17) CSRRRRProof [EQUIVALENT, 16 ms] (18) CSR (19) CSRRRRProof [EQUIVALENT, 0 ms] (20) CSR (21) CSRRRRProof [EQUIVALENT, 5 ms] (22) CSR (23) CSRRRRProof [EQUIVALENT, 0 ms] (24) CSR (25) CSRRRRProof [EQUIVALENT, 3 ms] (26) CSR (27) CSRRRRProof [EQUIVALENT, 0 ms] (28) CSR (29) CSRRRRProof [EQUIVALENT, 0 ms] (30) CSR (31) CSRRRRProof [EQUIVALENT, 2 ms] (32) CSR (33) RisEmptyProof [EQUIVALENT, 0 ms] (34) YES ---------------------------------------- (0) Obligation: Q restricted rewrite system: The TRS R consists of the following rules: active(__(__(X, Y), Z)) -> mark(__(X, __(Y, Z))) active(__(X, nil)) -> mark(X) active(__(nil, X)) -> mark(X) active(U11(tt, V)) -> mark(U12(isNeList(V))) active(U12(tt)) -> mark(tt) active(U21(tt, V1, V2)) -> mark(U22(isList(V1), V2)) active(U22(tt, V2)) -> mark(U23(isList(V2))) active(U23(tt)) -> mark(tt) active(U31(tt, V)) -> mark(U32(isQid(V))) active(U32(tt)) -> mark(tt) active(U41(tt, V1, V2)) -> mark(U42(isList(V1), V2)) active(U42(tt, V2)) -> mark(U43(isNeList(V2))) active(U43(tt)) -> mark(tt) active(U51(tt, V1, V2)) -> mark(U52(isNeList(V1), V2)) active(U52(tt, V2)) -> mark(U53(isList(V2))) active(U53(tt)) -> mark(tt) active(U61(tt, V)) -> mark(U62(isQid(V))) active(U62(tt)) -> mark(tt) active(U71(tt, V)) -> mark(U72(isNePal(V))) active(U72(tt)) -> mark(tt) active(and(tt, X)) -> mark(X) active(isList(V)) -> mark(U11(isPalListKind(V), V)) active(isList(nil)) -> mark(tt) active(isList(__(V1, V2))) -> mark(U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2)) active(isNeList(V)) -> mark(U31(isPalListKind(V), V)) active(isNeList(__(V1, V2))) -> mark(U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2)) active(isNeList(__(V1, V2))) -> mark(U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2)) active(isNePal(V)) -> mark(U61(isPalListKind(V), V)) active(isNePal(__(I, __(P, I)))) -> mark(and(and(isQid(I), isPalListKind(I)), and(isPal(P), isPalListKind(P)))) active(isPal(V)) -> mark(U71(isPalListKind(V), V)) active(isPal(nil)) -> mark(tt) active(isPalListKind(a)) -> mark(tt) active(isPalListKind(e)) -> mark(tt) active(isPalListKind(i)) -> mark(tt) active(isPalListKind(nil)) -> mark(tt) active(isPalListKind(o)) -> mark(tt) active(isPalListKind(u)) -> mark(tt) active(isPalListKind(__(V1, V2))) -> mark(and(isPalListKind(V1), isPalListKind(V2))) active(isQid(a)) -> mark(tt) active(isQid(e)) -> mark(tt) active(isQid(i)) -> mark(tt) active(isQid(o)) -> mark(tt) active(isQid(u)) -> mark(tt) active(__(X1, X2)) -> __(active(X1), X2) active(__(X1, X2)) -> __(X1, active(X2)) active(U11(X1, X2)) -> U11(active(X1), X2) active(U12(X)) -> U12(active(X)) active(U21(X1, X2, X3)) -> U21(active(X1), X2, X3) active(U22(X1, X2)) -> U22(active(X1), X2) active(U23(X)) -> U23(active(X)) active(U31(X1, X2)) -> U31(active(X1), X2) active(U32(X)) -> U32(active(X)) active(U41(X1, X2, X3)) -> U41(active(X1), X2, X3) active(U42(X1, X2)) -> U42(active(X1), X2) active(U43(X)) -> U43(active(X)) active(U51(X1, X2, X3)) -> U51(active(X1), X2, X3) active(U52(X1, X2)) -> U52(active(X1), X2) active(U53(X)) -> U53(active(X)) active(U61(X1, X2)) -> U61(active(X1), X2) active(U62(X)) -> U62(active(X)) active(U71(X1, X2)) -> U71(active(X1), X2) active(U72(X)) -> U72(active(X)) active(and(X1, X2)) -> and(active(X1), X2) __(mark(X1), X2) -> mark(__(X1, X2)) __(X1, mark(X2)) -> mark(__(X1, X2)) U11(mark(X1), X2) -> mark(U11(X1, X2)) U12(mark(X)) -> mark(U12(X)) U21(mark(X1), X2, X3) -> mark(U21(X1, X2, X3)) U22(mark(X1), X2) -> mark(U22(X1, X2)) U23(mark(X)) -> mark(U23(X)) U31(mark(X1), X2) -> mark(U31(X1, X2)) U32(mark(X)) -> mark(U32(X)) U41(mark(X1), X2, X3) -> mark(U41(X1, X2, X3)) U42(mark(X1), X2) -> mark(U42(X1, X2)) U43(mark(X)) -> mark(U43(X)) U51(mark(X1), X2, X3) -> mark(U51(X1, X2, X3)) U52(mark(X1), X2) -> mark(U52(X1, X2)) U53(mark(X)) -> mark(U53(X)) U61(mark(X1), X2) -> mark(U61(X1, X2)) U62(mark(X)) -> mark(U62(X)) U71(mark(X1), X2) -> mark(U71(X1, X2)) U72(mark(X)) -> mark(U72(X)) and(mark(X1), X2) -> mark(and(X1, X2)) proper(__(X1, X2)) -> __(proper(X1), proper(X2)) proper(nil) -> ok(nil) proper(U11(X1, X2)) -> U11(proper(X1), proper(X2)) proper(tt) -> ok(tt) proper(U12(X)) -> U12(proper(X)) proper(isNeList(X)) -> isNeList(proper(X)) proper(U21(X1, X2, X3)) -> U21(proper(X1), proper(X2), proper(X3)) proper(U22(X1, X2)) -> U22(proper(X1), proper(X2)) proper(isList(X)) -> isList(proper(X)) proper(U23(X)) -> U23(proper(X)) proper(U31(X1, X2)) -> U31(proper(X1), proper(X2)) proper(U32(X)) -> U32(proper(X)) proper(isQid(X)) -> isQid(proper(X)) proper(U41(X1, X2, X3)) -> U41(proper(X1), proper(X2), proper(X3)) proper(U42(X1, X2)) -> U42(proper(X1), proper(X2)) proper(U43(X)) -> U43(proper(X)) proper(U51(X1, X2, X3)) -> U51(proper(X1), proper(X2), proper(X3)) proper(U52(X1, X2)) -> U52(proper(X1), proper(X2)) proper(U53(X)) -> U53(proper(X)) proper(U61(X1, X2)) -> U61(proper(X1), proper(X2)) proper(U62(X)) -> U62(proper(X)) proper(U71(X1, X2)) -> U71(proper(X1), proper(X2)) proper(U72(X)) -> U72(proper(X)) proper(isNePal(X)) -> isNePal(proper(X)) proper(and(X1, X2)) -> and(proper(X1), proper(X2)) proper(isPalListKind(X)) -> isPalListKind(proper(X)) proper(isPal(X)) -> isPal(proper(X)) proper(a) -> ok(a) proper(e) -> ok(e) proper(i) -> ok(i) proper(o) -> ok(o) proper(u) -> ok(u) __(ok(X1), ok(X2)) -> ok(__(X1, X2)) U11(ok(X1), ok(X2)) -> ok(U11(X1, X2)) U12(ok(X)) -> ok(U12(X)) isNeList(ok(X)) -> ok(isNeList(X)) U21(ok(X1), ok(X2), ok(X3)) -> ok(U21(X1, X2, X3)) U22(ok(X1), ok(X2)) -> ok(U22(X1, X2)) isList(ok(X)) -> ok(isList(X)) U23(ok(X)) -> ok(U23(X)) U31(ok(X1), ok(X2)) -> ok(U31(X1, X2)) U32(ok(X)) -> ok(U32(X)) isQid(ok(X)) -> ok(isQid(X)) U41(ok(X1), ok(X2), ok(X3)) -> ok(U41(X1, X2, X3)) U42(ok(X1), ok(X2)) -> ok(U42(X1, X2)) U43(ok(X)) -> ok(U43(X)) U51(ok(X1), ok(X2), ok(X3)) -> ok(U51(X1, X2, X3)) U52(ok(X1), ok(X2)) -> ok(U52(X1, X2)) U53(ok(X)) -> ok(U53(X)) U61(ok(X1), ok(X2)) -> ok(U61(X1, X2)) U62(ok(X)) -> ok(U62(X)) U71(ok(X1), ok(X2)) -> ok(U71(X1, X2)) U72(ok(X)) -> ok(U72(X)) isNePal(ok(X)) -> ok(isNePal(X)) and(ok(X1), ok(X2)) -> ok(and(X1, X2)) isPalListKind(ok(X)) -> ok(isPalListKind(X)) isPal(ok(X)) -> ok(isPal(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) The set Q consists of the following terms: active(isList(x0)) active(isNeList(x0)) active(isNePal(x0)) active(isPal(x0)) active(isPalListKind(a)) active(isPalListKind(e)) active(isPalListKind(i)) active(isPalListKind(nil)) active(isPalListKind(o)) active(isPalListKind(u)) active(isPalListKind(__(x0, x1))) active(isQid(a)) active(isQid(e)) active(isQid(i)) active(isQid(o)) active(isQid(u)) active(__(x0, x1)) active(U11(x0, x1)) active(U12(x0)) active(U21(x0, x1, x2)) active(U22(x0, x1)) active(U23(x0)) active(U31(x0, x1)) active(U32(x0)) active(U41(x0, x1, x2)) active(U42(x0, x1)) active(U43(x0)) active(U51(x0, x1, x2)) active(U52(x0, x1)) active(U53(x0)) active(U61(x0, x1)) active(U62(x0)) active(U71(x0, x1)) active(U72(x0)) active(and(x0, x1)) __(mark(x0), x1) __(x0, mark(x1)) U11(mark(x0), x1) U12(mark(x0)) U21(mark(x0), x1, x2) U22(mark(x0), x1) U23(mark(x0)) U31(mark(x0), x1) U32(mark(x0)) U41(mark(x0), x1, x2) U42(mark(x0), x1) U43(mark(x0)) U51(mark(x0), x1, x2) U52(mark(x0), x1) U53(mark(x0)) U61(mark(x0), x1) U62(mark(x0)) U71(mark(x0), x1) U72(mark(x0)) and(mark(x0), x1) proper(__(x0, x1)) proper(nil) proper(U11(x0, x1)) proper(tt) proper(U12(x0)) proper(isNeList(x0)) proper(U21(x0, x1, x2)) proper(U22(x0, x1)) proper(isList(x0)) proper(U23(x0)) proper(U31(x0, x1)) proper(U32(x0)) proper(isQid(x0)) proper(U41(x0, x1, x2)) proper(U42(x0, x1)) proper(U43(x0)) proper(U51(x0, x1, x2)) proper(U52(x0, x1)) proper(U53(x0)) proper(U61(x0, x1)) proper(U62(x0)) proper(U71(x0, x1)) proper(U72(x0)) proper(isNePal(x0)) proper(and(x0, x1)) proper(isPalListKind(x0)) proper(isPal(x0)) proper(a) proper(e) proper(i) proper(o) proper(u) __(ok(x0), ok(x1)) U11(ok(x0), ok(x1)) U12(ok(x0)) isNeList(ok(x0)) U21(ok(x0), ok(x1), ok(x2)) U22(ok(x0), ok(x1)) isList(ok(x0)) U23(ok(x0)) U31(ok(x0), ok(x1)) U32(ok(x0)) isQid(ok(x0)) U41(ok(x0), ok(x1), ok(x2)) U42(ok(x0), ok(x1)) U43(ok(x0)) U51(ok(x0), ok(x1), ok(x2)) U52(ok(x0), ok(x1)) U53(ok(x0)) U61(ok(x0), ok(x1)) U62(ok(x0)) U71(ok(x0), ok(x1)) U72(ok(x0)) isNePal(ok(x0)) and(ok(x0), ok(x1)) isPalListKind(ok(x0)) isPal(ok(x0)) top(mark(x0)) top(ok(x0)) ---------------------------------------- (1) QTRSToCSRProof (SOUND) The following Q TRS is given: Q restricted rewrite system: The TRS R consists of the following rules: active(__(__(X, Y), Z)) -> mark(__(X, __(Y, Z))) active(__(X, nil)) -> mark(X) active(__(nil, X)) -> mark(X) active(U11(tt, V)) -> mark(U12(isNeList(V))) active(U12(tt)) -> mark(tt) active(U21(tt, V1, V2)) -> mark(U22(isList(V1), V2)) active(U22(tt, V2)) -> mark(U23(isList(V2))) active(U23(tt)) -> mark(tt) active(U31(tt, V)) -> mark(U32(isQid(V))) active(U32(tt)) -> mark(tt) active(U41(tt, V1, V2)) -> mark(U42(isList(V1), V2)) active(U42(tt, V2)) -> mark(U43(isNeList(V2))) active(U43(tt)) -> mark(tt) active(U51(tt, V1, V2)) -> mark(U52(isNeList(V1), V2)) active(U52(tt, V2)) -> mark(U53(isList(V2))) active(U53(tt)) -> mark(tt) active(U61(tt, V)) -> mark(U62(isQid(V))) active(U62(tt)) -> mark(tt) active(U71(tt, V)) -> mark(U72(isNePal(V))) active(U72(tt)) -> mark(tt) active(and(tt, X)) -> mark(X) active(isList(V)) -> mark(U11(isPalListKind(V), V)) active(isList(nil)) -> mark(tt) active(isList(__(V1, V2))) -> mark(U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2)) active(isNeList(V)) -> mark(U31(isPalListKind(V), V)) active(isNeList(__(V1, V2))) -> mark(U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2)) active(isNeList(__(V1, V2))) -> mark(U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2)) active(isNePal(V)) -> mark(U61(isPalListKind(V), V)) active(isNePal(__(I, __(P, I)))) -> mark(and(and(isQid(I), isPalListKind(I)), and(isPal(P), isPalListKind(P)))) active(isPal(V)) -> mark(U71(isPalListKind(V), V)) active(isPal(nil)) -> mark(tt) active(isPalListKind(a)) -> mark(tt) active(isPalListKind(e)) -> mark(tt) active(isPalListKind(i)) -> mark(tt) active(isPalListKind(nil)) -> mark(tt) active(isPalListKind(o)) -> mark(tt) active(isPalListKind(u)) -> mark(tt) active(isPalListKind(__(V1, V2))) -> mark(and(isPalListKind(V1), isPalListKind(V2))) active(isQid(a)) -> mark(tt) active(isQid(e)) -> mark(tt) active(isQid(i)) -> mark(tt) active(isQid(o)) -> mark(tt) active(isQid(u)) -> mark(tt) active(__(X1, X2)) -> __(active(X1), X2) active(__(X1, X2)) -> __(X1, active(X2)) active(U11(X1, X2)) -> U11(active(X1), X2) active(U12(X)) -> U12(active(X)) active(U21(X1, X2, X3)) -> U21(active(X1), X2, X3) active(U22(X1, X2)) -> U22(active(X1), X2) active(U23(X)) -> U23(active(X)) active(U31(X1, X2)) -> U31(active(X1), X2) active(U32(X)) -> U32(active(X)) active(U41(X1, X2, X3)) -> U41(active(X1), X2, X3) active(U42(X1, X2)) -> U42(active(X1), X2) active(U43(X)) -> U43(active(X)) active(U51(X1, X2, X3)) -> U51(active(X1), X2, X3) active(U52(X1, X2)) -> U52(active(X1), X2) active(U53(X)) -> U53(active(X)) active(U61(X1, X2)) -> U61(active(X1), X2) active(U62(X)) -> U62(active(X)) active(U71(X1, X2)) -> U71(active(X1), X2) active(U72(X)) -> U72(active(X)) active(and(X1, X2)) -> and(active(X1), X2) __(mark(X1), X2) -> mark(__(X1, X2)) __(X1, mark(X2)) -> mark(__(X1, X2)) U11(mark(X1), X2) -> mark(U11(X1, X2)) U12(mark(X)) -> mark(U12(X)) U21(mark(X1), X2, X3) -> mark(U21(X1, X2, X3)) U22(mark(X1), X2) -> mark(U22(X1, X2)) U23(mark(X)) -> mark(U23(X)) U31(mark(X1), X2) -> mark(U31(X1, X2)) U32(mark(X)) -> mark(U32(X)) U41(mark(X1), X2, X3) -> mark(U41(X1, X2, X3)) U42(mark(X1), X2) -> mark(U42(X1, X2)) U43(mark(X)) -> mark(U43(X)) U51(mark(X1), X2, X3) -> mark(U51(X1, X2, X3)) U52(mark(X1), X2) -> mark(U52(X1, X2)) U53(mark(X)) -> mark(U53(X)) U61(mark(X1), X2) -> mark(U61(X1, X2)) U62(mark(X)) -> mark(U62(X)) U71(mark(X1), X2) -> mark(U71(X1, X2)) U72(mark(X)) -> mark(U72(X)) and(mark(X1), X2) -> mark(and(X1, X2)) proper(__(X1, X2)) -> __(proper(X1), proper(X2)) proper(nil) -> ok(nil) proper(U11(X1, X2)) -> U11(proper(X1), proper(X2)) proper(tt) -> ok(tt) proper(U12(X)) -> U12(proper(X)) proper(isNeList(X)) -> isNeList(proper(X)) proper(U21(X1, X2, X3)) -> U21(proper(X1), proper(X2), proper(X3)) proper(U22(X1, X2)) -> U22(proper(X1), proper(X2)) proper(isList(X)) -> isList(proper(X)) proper(U23(X)) -> U23(proper(X)) proper(U31(X1, X2)) -> U31(proper(X1), proper(X2)) proper(U32(X)) -> U32(proper(X)) proper(isQid(X)) -> isQid(proper(X)) proper(U41(X1, X2, X3)) -> U41(proper(X1), proper(X2), proper(X3)) proper(U42(X1, X2)) -> U42(proper(X1), proper(X2)) proper(U43(X)) -> U43(proper(X)) proper(U51(X1, X2, X3)) -> U51(proper(X1), proper(X2), proper(X3)) proper(U52(X1, X2)) -> U52(proper(X1), proper(X2)) proper(U53(X)) -> U53(proper(X)) proper(U61(X1, X2)) -> U61(proper(X1), proper(X2)) proper(U62(X)) -> U62(proper(X)) proper(U71(X1, X2)) -> U71(proper(X1), proper(X2)) proper(U72(X)) -> U72(proper(X)) proper(isNePal(X)) -> isNePal(proper(X)) proper(and(X1, X2)) -> and(proper(X1), proper(X2)) proper(isPalListKind(X)) -> isPalListKind(proper(X)) proper(isPal(X)) -> isPal(proper(X)) proper(a) -> ok(a) proper(e) -> ok(e) proper(i) -> ok(i) proper(o) -> ok(o) proper(u) -> ok(u) __(ok(X1), ok(X2)) -> ok(__(X1, X2)) U11(ok(X1), ok(X2)) -> ok(U11(X1, X2)) U12(ok(X)) -> ok(U12(X)) isNeList(ok(X)) -> ok(isNeList(X)) U21(ok(X1), ok(X2), ok(X3)) -> ok(U21(X1, X2, X3)) U22(ok(X1), ok(X2)) -> ok(U22(X1, X2)) isList(ok(X)) -> ok(isList(X)) U23(ok(X)) -> ok(U23(X)) U31(ok(X1), ok(X2)) -> ok(U31(X1, X2)) U32(ok(X)) -> ok(U32(X)) isQid(ok(X)) -> ok(isQid(X)) U41(ok(X1), ok(X2), ok(X3)) -> ok(U41(X1, X2, X3)) U42(ok(X1), ok(X2)) -> ok(U42(X1, X2)) U43(ok(X)) -> ok(U43(X)) U51(ok(X1), ok(X2), ok(X3)) -> ok(U51(X1, X2, X3)) U52(ok(X1), ok(X2)) -> ok(U52(X1, X2)) U53(ok(X)) -> ok(U53(X)) U61(ok(X1), ok(X2)) -> ok(U61(X1, X2)) U62(ok(X)) -> ok(U62(X)) U71(ok(X1), ok(X2)) -> ok(U71(X1, X2)) U72(ok(X)) -> ok(U72(X)) isNePal(ok(X)) -> ok(isNePal(X)) and(ok(X1), ok(X2)) -> ok(and(X1, X2)) isPalListKind(ok(X)) -> ok(isPalListKind(X)) isPal(ok(X)) -> ok(isPal(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) The set Q consists of the following terms: active(isList(x0)) active(isNeList(x0)) active(isNePal(x0)) active(isPal(x0)) active(isPalListKind(a)) active(isPalListKind(e)) active(isPalListKind(i)) active(isPalListKind(nil)) active(isPalListKind(o)) active(isPalListKind(u)) active(isPalListKind(__(x0, x1))) active(isQid(a)) active(isQid(e)) active(isQid(i)) active(isQid(o)) active(isQid(u)) active(__(x0, x1)) active(U11(x0, x1)) active(U12(x0)) active(U21(x0, x1, x2)) active(U22(x0, x1)) active(U23(x0)) active(U31(x0, x1)) active(U32(x0)) active(U41(x0, x1, x2)) active(U42(x0, x1)) active(U43(x0)) active(U51(x0, x1, x2)) active(U52(x0, x1)) active(U53(x0)) active(U61(x0, x1)) active(U62(x0)) active(U71(x0, x1)) active(U72(x0)) active(and(x0, x1)) __(mark(x0), x1) __(x0, mark(x1)) U11(mark(x0), x1) U12(mark(x0)) U21(mark(x0), x1, x2) U22(mark(x0), x1) U23(mark(x0)) U31(mark(x0), x1) U32(mark(x0)) U41(mark(x0), x1, x2) U42(mark(x0), x1) U43(mark(x0)) U51(mark(x0), x1, x2) U52(mark(x0), x1) U53(mark(x0)) U61(mark(x0), x1) U62(mark(x0)) U71(mark(x0), x1) U72(mark(x0)) and(mark(x0), x1) proper(__(x0, x1)) proper(nil) proper(U11(x0, x1)) proper(tt) proper(U12(x0)) proper(isNeList(x0)) proper(U21(x0, x1, x2)) proper(U22(x0, x1)) proper(isList(x0)) proper(U23(x0)) proper(U31(x0, x1)) proper(U32(x0)) proper(isQid(x0)) proper(U41(x0, x1, x2)) proper(U42(x0, x1)) proper(U43(x0)) proper(U51(x0, x1, x2)) proper(U52(x0, x1)) proper(U53(x0)) proper(U61(x0, x1)) proper(U62(x0)) proper(U71(x0, x1)) proper(U72(x0)) proper(isNePal(x0)) proper(and(x0, x1)) proper(isPalListKind(x0)) proper(isPal(x0)) proper(a) proper(e) proper(i) proper(o) proper(u) __(ok(x0), ok(x1)) U11(ok(x0), ok(x1)) U12(ok(x0)) isNeList(ok(x0)) U21(ok(x0), ok(x1), ok(x2)) U22(ok(x0), ok(x1)) isList(ok(x0)) U23(ok(x0)) U31(ok(x0), ok(x1)) U32(ok(x0)) isQid(ok(x0)) U41(ok(x0), ok(x1), ok(x2)) U42(ok(x0), ok(x1)) U43(ok(x0)) U51(ok(x0), ok(x1), ok(x2)) U52(ok(x0), ok(x1)) U53(ok(x0)) U61(ok(x0), ok(x1)) U62(ok(x0)) U71(ok(x0), ok(x1)) U72(ok(x0)) isNePal(ok(x0)) and(ok(x0), ok(x1)) isPalListKind(ok(x0)) isPal(ok(x0)) top(mark(x0)) top(ok(x0)) Special symbols used for the transformation (see [GM04]): top: top_1, active: active_1, mark: mark_1, ok: ok_1, proper: proper_1 The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U43: {1} U51: {1} U52: {1} U53: {1} U61: {1} U62: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set The QTRS contained just a subset of rules created by the complete Giesl-Middeldorp transformation. Therefore, the inverse transformation is sound, but not necessarily complete. ---------------------------------------- (2) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) __(X, nil) -> X __(nil, X) -> X U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U23(tt) -> tt U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U42(tt, V2) -> U43(isNeList(V2)) U43(tt) -> tt U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U53(tt) -> tt U61(tt, V) -> U62(isQid(V)) U62(tt) -> tt U71(tt, V) -> U72(isNePal(V)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(nil) -> tt isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isNePal(__(I, __(P, I))) -> and(and(isQid(I), isPalListKind(I)), and(isPal(P), isPalListKind(P))) isPal(V) -> U71(isPalListKind(V), V) isPal(nil) -> tt isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) isQid(a) -> tt isQid(e) -> tt isQid(i) -> tt isQid(o) -> tt isQid(u) -> tt The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U43: {1} U51: {1} U52: {1} U53: {1} U61: {1} U62: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (3) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) __(X, nil) -> X __(nil, X) -> X U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U23(tt) -> tt U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U42(tt, V2) -> U43(isNeList(V2)) U43(tt) -> tt U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U53(tt) -> tt U61(tt, V) -> U62(isQid(V)) U62(tt) -> tt U71(tt, V) -> U72(isNePal(V)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(nil) -> tt isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isNePal(__(I, __(P, I))) -> and(and(isQid(I), isPalListKind(I)), and(isPal(P), isPalListKind(P))) isPal(V) -> U71(isPalListKind(V), V) isPal(nil) -> tt isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) isQid(a) -> tt isQid(e) -> tt isQid(i) -> tt isQid(o) -> tt isQid(u) -> tt The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U43: {1} U51: {1} U52: {1} U53: {1} U61: {1} U62: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = x_1 + x_2 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U22(x_1, x_2)) = 1 + x_1 + x_2 POL(U23(x_1)) = 1 + x_1 POL(U31(x_1, x_2)) = x_1 + x_2 POL(U32(x_1)) = x_1 POL(U41(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U42(x_1, x_2)) = 1 + x_1 + x_2 POL(U43(x_1)) = 1 + x_1 POL(U51(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U52(x_1, x_2)) = 1 + x_1 + x_2 POL(U53(x_1)) = 1 + x_1 POL(U61(x_1, x_2)) = 1 + x_1 + x_2 POL(U62(x_1)) = 1 + x_1 POL(U71(x_1, x_2)) = 1 + x_1 + x_2 POL(U72(x_1)) = x_1 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = x_1 POL(isNeList(x_1)) = x_1 POL(isNePal(x_1)) = 1 + x_1 POL(isPal(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = x_1 POL(nil) = 1 POL(o) = 1 POL(tt) = 0 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: __(X, nil) -> X __(nil, X) -> X U23(tt) -> tt U43(tt) -> tt U53(tt) -> tt U62(tt) -> tt isList(nil) -> tt isNePal(__(I, __(P, I))) -> and(and(isQid(I), isPalListKind(I)), and(isPal(P), isPalListKind(P))) isPal(nil) -> tt isQid(a) -> tt isQid(e) -> tt isQid(i) -> tt isQid(o) -> tt isQid(u) -> tt ---------------------------------------- (4) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U42(tt, V2) -> U43(isNeList(V2)) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U61(tt, V) -> U62(isQid(V)) U71(tt, V) -> U72(isNePal(V)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPal(V) -> U71(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U43: {1} U51: {1} U52: {1} U53: {1} U61: {1} U62: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (5) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U42(tt, V2) -> U43(isNeList(V2)) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U61(tt, V) -> U62(isQid(V)) U71(tt, V) -> U72(isNePal(V)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPal(V) -> U71(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U43: {1} U51: {1} U52: {1} U53: {1} U61: {1} U62: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = x_1 + x_2 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U22(x_1, x_2)) = 1 + x_1 + x_2 POL(U23(x_1)) = 1 + x_1 POL(U31(x_1, x_2)) = x_1 + x_2 POL(U32(x_1)) = x_1 POL(U41(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U42(x_1, x_2)) = 1 + x_1 + x_2 POL(U43(x_1)) = x_1 POL(U51(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U52(x_1, x_2)) = 1 + x_1 + x_2 POL(U53(x_1)) = 1 + x_1 POL(U61(x_1, x_2)) = 1 + x_1 + x_2 POL(U62(x_1)) = 1 + x_1 POL(U71(x_1, x_2)) = 1 + x_1 + x_2 POL(U72(x_1)) = x_1 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = x_1 POL(isNeList(x_1)) = x_1 POL(isNePal(x_1)) = 1 + x_1 POL(isPal(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = x_1 POL(nil) = 1 POL(o) = 1 POL(tt) = 0 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U42(tt, V2) -> U43(isNeList(V2)) ---------------------------------------- (6) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U61(tt, V) -> U62(isQid(V)) U71(tt, V) -> U72(isNePal(V)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPal(V) -> U71(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} U61: {1} U62: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (7) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U61(tt, V) -> U62(isQid(V)) U71(tt, V) -> U72(isNePal(V)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPal(V) -> U71(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} U61: {1} U62: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = x_1 + x_2 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U22(x_1, x_2)) = 1 + x_1 + x_2 POL(U23(x_1)) = 1 + x_1 POL(U31(x_1, x_2)) = x_1 + x_2 POL(U32(x_1)) = x_1 POL(U41(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U42(x_1, x_2)) = 1 + x_1 + x_2 POL(U51(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U52(x_1, x_2)) = 1 + x_1 + x_2 POL(U53(x_1)) = 1 + x_1 POL(U61(x_1, x_2)) = 1 + x_1 + x_2 POL(U62(x_1)) = x_1 POL(U71(x_1, x_2)) = 1 + x_1 + x_2 POL(U72(x_1)) = x_1 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = x_1 POL(isNeList(x_1)) = x_1 POL(isNePal(x_1)) = 1 + x_1 POL(isPal(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = x_1 POL(nil) = 1 POL(o) = 1 POL(tt) = 0 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U61(tt, V) -> U62(isQid(V)) ---------------------------------------- (8) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U71(tt, V) -> U72(isNePal(V)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPal(V) -> U71(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} U61: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (9) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U71(tt, V) -> U72(isNePal(V)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPal(V) -> U71(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} U61: {1} U71: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set isPal: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = 2*x_1 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 2*x_1 POL(U22(x_1, x_2)) = 2*x_1 POL(U23(x_1)) = 2*x_1 POL(U31(x_1, x_2)) = x_1 POL(U32(x_1)) = 2*x_1 POL(U41(x_1, x_2, x_3)) = x_1 POL(U42(x_1, x_2)) = x_1 POL(U51(x_1, x_2, x_3)) = 2*x_1 POL(U52(x_1, x_2)) = 2*x_1 POL(U53(x_1)) = 2*x_1 POL(U61(x_1, x_2)) = 2*x_1 POL(U71(x_1, x_2)) = 1 + x_1 + 2*x_2 POL(U72(x_1)) = 2*x_1 POL(__(x_1, x_2)) = x_1 + x_2 POL(a) = 2 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 2 POL(i) = 2 POL(isList(x_1)) = 0 POL(isNeList(x_1)) = 0 POL(isNePal(x_1)) = 0 POL(isPal(x_1)) = 2 + 2*x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = 0 POL(nil) = 2 POL(o) = 2 POL(tt) = 0 POL(u) = 2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U71(tt, V) -> U72(isNePal(V)) isPal(V) -> U71(isPalListKind(V), V) ---------------------------------------- (10) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} U61: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (11) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) U72(tt) -> tt and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} U61: {1} U72: {1} isNePal: empty set and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = x_1 + x_2 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U22(x_1, x_2)) = 1 + x_1 + x_2 POL(U23(x_1)) = 1 + x_1 POL(U31(x_1, x_2)) = x_1 + x_2 POL(U32(x_1)) = x_1 POL(U41(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U42(x_1, x_2)) = 1 + x_1 + x_2 POL(U51(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U52(x_1, x_2)) = 1 + x_1 + x_2 POL(U53(x_1)) = 1 + x_1 POL(U61(x_1, x_2)) = 1 + x_1 + x_2 POL(U72(x_1)) = 1 + x_1 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = x_1 POL(isNeList(x_1)) = x_1 POL(isNePal(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = x_1 POL(nil) = 1 POL(o) = 1 POL(tt) = 0 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U72(tt) -> tt ---------------------------------------- (12) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} U61: {1} isNePal: empty set and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (13) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNePal(V) -> U61(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} U61: {1} isNePal: empty set and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = x_1 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = x_1 POL(U22(x_1, x_2)) = x_1 POL(U23(x_1)) = x_1 POL(U31(x_1, x_2)) = x_1 POL(U32(x_1)) = x_1 POL(U41(x_1, x_2, x_3)) = x_1 POL(U42(x_1, x_2)) = x_1 POL(U51(x_1, x_2, x_3)) = x_1 POL(U52(x_1, x_2)) = x_1 POL(U53(x_1)) = x_1 POL(U61(x_1, x_2)) = x_1 + x_2 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = 0 POL(isNeList(x_1)) = 0 POL(isNePal(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = 0 POL(nil) = 1 POL(o) = 1 POL(tt) = 0 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: isNePal(V) -> U61(isPalListKind(V), V) ---------------------------------------- (14) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (15) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) U52(tt, V2) -> U53(isList(V2)) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} U53: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = x_1 + x_2 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U22(x_1, x_2)) = 1 + x_1 + x_2 POL(U23(x_1)) = 1 + x_1 POL(U31(x_1, x_2)) = x_1 + x_2 POL(U32(x_1)) = x_1 POL(U41(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U42(x_1, x_2)) = 1 + x_1 + x_2 POL(U51(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U52(x_1, x_2)) = 1 + x_1 + x_2 POL(U53(x_1)) = x_1 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = x_1 POL(isNeList(x_1)) = x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = x_1 POL(nil) = 1 POL(o) = 1 POL(tt) = 0 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U52(tt, V2) -> U53(isList(V2)) ---------------------------------------- (16) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (17) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: __(__(X, Y), Z) -> __(X, __(Y, Z)) U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = x_1 POL(U12(x_1)) = 2*x_1 POL(U21(x_1, x_2, x_3)) = 2*x_1 POL(U22(x_1, x_2)) = 2*x_1 POL(U23(x_1)) = 2*x_1 POL(U31(x_1, x_2)) = x_1 POL(U32(x_1)) = 2*x_1 POL(U41(x_1, x_2, x_3)) = 2*x_1 POL(U42(x_1, x_2)) = 2*x_1 POL(U51(x_1, x_2, x_3)) = 2*x_1 POL(U52(x_1, x_2)) = x_1 POL(__(x_1, x_2)) = 1 + 2*x_1 + x_2 POL(a) = 2 POL(and(x_1, x_2)) = 2*x_1 + 2*x_2 POL(e) = 2 POL(i) = 2 POL(isList(x_1)) = 0 POL(isNeList(x_1)) = 0 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = 0 POL(nil) = 2 POL(o) = 2 POL(tt) = 0 POL(u) = 2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: __(__(X, Y), Z) -> __(X, __(Y, Z)) ---------------------------------------- (18) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (19) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U22(tt, V2) -> U23(isList(V2)) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(V) -> U31(isPalListKind(V), V) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U23: {1} U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = 2*x_1 + 2*x_2 POL(U12(x_1)) = 2*x_1 POL(U21(x_1, x_2, x_3)) = 1 + 2*x_1 + 2*x_2 + 2*x_3 POL(U22(x_1, x_2)) = 1 + x_1 + 2*x_2 POL(U23(x_1)) = x_1 POL(U31(x_1, x_2)) = 2*x_1 + x_2 POL(U32(x_1)) = x_1 POL(U41(x_1, x_2, x_3)) = 2*x_1 + 2*x_2 POL(U42(x_1, x_2)) = x_1 POL(U51(x_1, x_2, x_3)) = 2*x_1 + 2*x_2 POL(U52(x_1, x_2)) = 2*x_1 POL(__(x_1, x_2)) = 1 + 2*x_1 + 2*x_2 POL(a) = 2 POL(and(x_1, x_2)) = 2*x_1 + 2*x_2 POL(e) = 2 POL(i) = 2 POL(isList(x_1)) = 2*x_1 POL(isNeList(x_1)) = x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = 0 POL(nil) = 2 POL(o) = 2 POL(tt) = 0 POL(u) = 2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U22(tt, V2) -> U23(isList(V2)) isList(__(V1, V2)) -> U21(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U41(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) isNeList(__(V1, V2)) -> U51(and(isPalListKind(V1), isPalListKind(V2)), V1, V2) ---------------------------------------- (20) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (21) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) U32(tt) -> tt U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = 1 + x_1 + x_2 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U22(x_1, x_2)) = x_1 + x_2 POL(U31(x_1, x_2)) = 1 + x_1 + x_2 POL(U32(x_1)) = 1 + x_1 POL(U41(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U42(x_1, x_2)) = x_1 + x_2 POL(U51(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U52(x_1, x_2)) = x_1 + x_2 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = 1 + x_1 POL(isNeList(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = x_1 POL(nil) = 1 POL(o) = 1 POL(tt) = 0 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U32(tt) -> tt ---------------------------------------- (22) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (23) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: U11(tt, V) -> U12(isNeList(V)) U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) U41(tt, V1, V2) -> U42(isList(V1), V2) U51(tt, V1, V2) -> U52(isNeList(V1), V2) and(tt, X) -> X isList(V) -> U11(isPalListKind(V), V) isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set U11: {1} tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} U51: {1} U52: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U11(x_1, x_2)) = 1 + x_1 POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 2 + x_1 + 2*x_2 + 2*x_3 POL(U22(x_1, x_2)) = x_1 + 2*x_2 POL(U31(x_1, x_2)) = 2*x_1 POL(U32(x_1)) = 2*x_1 POL(U41(x_1, x_2, x_3)) = 2 + 2*x_1 + 2*x_2 + 2*x_3 POL(U42(x_1, x_2)) = x_1 + 2*x_2 POL(U51(x_1, x_2, x_3)) = 2 + x_1 + 2*x_2 + 2*x_3 POL(U52(x_1, x_2)) = 2*x_1 + 2*x_2 POL(__(x_1, x_2)) = 2 + 2*x_1 + x_2 POL(a) = 2 POL(and(x_1, x_2)) = x_1 + 2*x_2 POL(e) = 2 POL(i) = 2 POL(isList(x_1)) = 2 + x_1 POL(isNeList(x_1)) = 0 POL(isPalListKind(x_1)) = 0 POL(isQid(x_1)) = 0 POL(nil) = 2 POL(o) = 2 POL(tt) = 0 POL(u) = 2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U11(tt, V) -> U12(isNeList(V)) U51(tt, V1, V2) -> U52(isNeList(V1), V2) isList(V) -> U11(isPalListKind(V), V) ---------------------------------------- (24) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) U41(tt, V1, V2) -> U42(isList(V1), V2) and(tt, X) -> X isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (25) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) U41(tt, V1, V2) -> U42(isList(V1), V2) and(tt, X) -> X isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set U41: {1} U42: {1} and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U12(x_1)) = x_1 POL(U21(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U22(x_1, x_2)) = 1 + x_1 + x_2 POL(U31(x_1, x_2)) = 1 + x_1 POL(U32(x_1)) = 1 + x_1 POL(U41(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U42(x_1, x_2)) = x_1 + x_2 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = 1 + x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = 1 + x_1 POL(isNeList(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = x_1 POL(isQid(x_1)) = 1 POL(nil) = 1 POL(o) = 1 POL(tt) = 1 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U41(tt, V1, V2) -> U42(isList(V1), V2) and(tt, X) -> X ---------------------------------------- (26) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (27) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: U12(tt) -> tt U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set tt: empty set U12: {1} isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U12(x_1)) = 1 + x_1 POL(U21(x_1, x_2, x_3)) = 1 + x_1 + x_2 + x_3 POL(U22(x_1, x_2)) = 1 + x_1 + x_2 POL(U31(x_1, x_2)) = 1 + x_1 POL(U32(x_1)) = 1 + x_1 POL(__(x_1, x_2)) = 1 + x_1 + x_2 POL(a) = 1 POL(and(x_1, x_2)) = 1 + x_1 + x_2 POL(e) = 1 POL(i) = 1 POL(isList(x_1)) = 1 + x_1 POL(isNeList(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = x_1 POL(isQid(x_1)) = 1 POL(nil) = 1 POL(o) = 1 POL(tt) = 1 POL(u) = 1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U12(tt) -> tt ---------------------------------------- (28) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set tt: empty set isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set ---------------------------------------- (29) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) isNeList(V) -> U31(isPalListKind(V), V) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) The replacement map contains the following entries: __: {1, 2} nil: empty set tt: empty set isNeList: empty set U21: {1} U22: {1} isList: empty set U31: {1} U32: {1} isQid: empty set and: {1} isPalListKind: empty set a: empty set e: empty set i: empty set o: empty set u: empty set Used ordering: Polynomial interpretation [POLO]: POL(U21(x_1, x_2, x_3)) = 1 + 2*x_1 + 2*x_2 + 2*x_3 POL(U22(x_1, x_2)) = 2 + 2*x_1 + 2*x_2 POL(U31(x_1, x_2)) = x_1 POL(U32(x_1)) = 1 + 2*x_1 POL(__(x_1, x_2)) = 2 + 2*x_1 + 2*x_2 POL(a) = 2 POL(and(x_1, x_2)) = x_1 + x_2 POL(e) = 2 POL(i) = 2 POL(isList(x_1)) = x_1 POL(isNeList(x_1)) = 1 + 2*x_1 POL(isPalListKind(x_1)) = 1 + 2*x_1 POL(isQid(x_1)) = 0 POL(nil) = 2 POL(o) = 2 POL(tt) = 2 POL(u) = 2 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: U21(tt, V1, V2) -> U22(isList(V1), V2) U31(tt, V) -> U32(isQid(V)) isPalListKind(a) -> tt isPalListKind(e) -> tt isPalListKind(i) -> tt isPalListKind(nil) -> tt isPalListKind(o) -> tt isPalListKind(u) -> tt isPalListKind(__(V1, V2)) -> and(isPalListKind(V1), isPalListKind(V2)) ---------------------------------------- (30) Obligation: Context-sensitive rewrite system: The TRS R consists of the following rules: isNeList(V) -> U31(isPalListKind(V), V) The replacement map contains the following entries: isNeList: empty set U31: {1} isPalListKind: empty set ---------------------------------------- (31) CSRRRRProof (EQUIVALENT) The following CSR is given: Context-sensitive rewrite system: The TRS R consists of the following rules: isNeList(V) -> U31(isPalListKind(V), V) The replacement map contains the following entries: isNeList: empty set U31: {1} isPalListKind: empty set Used ordering: Polynomial interpretation [POLO]: POL(U31(x_1, x_2)) = x_1 + x_2 POL(isNeList(x_1)) = 1 + x_1 POL(isPalListKind(x_1)) = 0 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: isNeList(V) -> U31(isPalListKind(V), V) ---------------------------------------- (32) Obligation: Context-sensitive rewrite system: R is empty. ---------------------------------------- (33) RisEmptyProof (EQUIVALENT) The CSR R is empty. Hence, termination is trivially proven. ---------------------------------------- (34) YES