/export/starexec/sandbox/solver/bin/starexec_run_Transition /export/starexec/sandbox/benchmark/theBenchmark.smt2 /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES DP problem for innermost termination. P = init#(x1, x2, x3, x4) -> f1#(rnd1, rnd2, rnd3, rnd4) f10#(I0, I1, I2, I3) -> f10#(I4, I1, I2 + 1, I5) [-1 <= I1 - 1 /\ 42 <= y1 - 1 /\ -1 <= I2 - 1 /\ I4 + 1 <= I0 /\ 0 <= I0 - 1 /\ -1 <= I4 - 1] f10#(I6, I7, I8, I9) -> f10#(I10, I7, I8 + 1, I11) [-1 <= I7 - 1 /\ -1 <= I8 - 1 /\ I12 <= 42 /\ -1 <= I12 - 1 /\ I10 + 1 <= I6 /\ 0 <= I6 - 1 /\ -1 <= I10 - 1] f2#(I13, I14, I15, I16) -> f10#(I17, I18, I15, I19) [-1 <= I17 - 1 /\ -1 <= I14 - 1 /\ 0 <= I13 - 1 /\ I17 <= I14] f8#(I42, I43, I44, I45) -> f8#(I46, I43 - 1, I44, I47) [0 <= I43 - 1 /\ 0 <= I45 - 1 /\ 0 <= I48 - 1 /\ I46 - 3 <= I42 /\ 2 <= I42 - 1 /\ 5 <= I46 - 1] f8#(I49, I50, I51, I52) -> f8#(I53, I50 - 1, I51, I54) [0 <= I50 - 1 /\ 0 <= I52 - 1 /\ 0 <= I55 - 1 /\ I53 - 3 <= I49 /\ 2 <= I49 - 1 /\ 5 <= I53 - 1] f8#(I56, I57, I58, I59) -> f8#(I60, I57 - 1, I58, I61) [0 <= I57 - 1 /\ 0 <= I59 - 1 /\ 0 <= I62 - 1 /\ I60 - 2 <= I56 /\ 2 <= I56 - 1 /\ 3 <= I60 - 1] f8#(I63, I64, I65, I66) -> f8#(I67, I64 - 1, I65, I68) [0 <= I64 - 1 /\ 0 <= I66 - 1 /\ 0 <= I69 - 1 /\ I67 - 2 <= I63 /\ 2 <= I63 - 1 /\ 3 <= I67 - 1] f8#(I70, I71, I72, I73) -> f8#(I74, I71 - 1, I72, I73) [-1 <= I74 - 1 /\ 1 <= I70 - 1 /\ 0 <= I71 - 1 /\ I74 + 2 <= I70] f5#(I75, I76, I77, I78) -> f8#(I79, I80, I81, I82) [0 <= I83 - 1 /\ -1 <= I80 - 1 /\ I79 - 1 <= I75 /\ 0 <= I75 - 1 /\ 1 <= I79 - 1 /\ I83 + 1 = I82] f7#(I84, I85, I86, I87) -> f8#(I88, I89, I90, I91) [0 <= I92 - 1 /\ -1 <= I89 - 1 /\ I88 - 3 <= I84 /\ 0 <= I84 - 1 /\ 3 <= I88 - 1 /\ I92 + 1 = I91] f1#(I93, I94, I95, I96) -> f7#(I97, I98, I99, I100) [0 <= I97 - 1 /\ 0 <= I93 - 1 /\ I97 <= I93] f6#(I101, I102, I103, I104) -> f7#(I105, I106, I107, I108) [0 <= I105 - 1] f1#(I109, I110, I111, I112) -> f5#(I113, I114, I115, I116) [0 <= I113 - 1 /\ 0 <= I109 - 1 /\ I113 <= I109] f4#(I117, I118, I119, I120) -> f5#(I121, I122, I123, I124) [0 <= I121 - 1] f3#(I125, I126, I127, I128) -> f2#(I129, I130, 2, I131) [-1 <= I130 - 1 /\ 0 <= I129 - 1 /\ -1 <= I126 - 1 /\ 0 <= I125 - 1 /\ I130 <= I126 /\ I129 - 1 <= I126 /\ I129 <= I125] f1#(I132, I133, I134, I135) -> f2#(I136, I137, I138, I139) [-1 <= I137 - 1 /\ 0 <= I136 - 1 /\ 0 <= I132 - 1 /\ I136 <= I132] R = init(x1, x2, x3, x4) -> f1(rnd1, rnd2, rnd3, rnd4) f10(I0, I1, I2, I3) -> f10(I4, I1, I2 + 1, I5) [-1 <= I1 - 1 /\ 42 <= y1 - 1 /\ -1 <= I2 - 1 /\ I4 + 1 <= I0 /\ 0 <= I0 - 1 /\ -1 <= I4 - 1] f10(I6, I7, I8, I9) -> f10(I10, I7, I8 + 1, I11) [-1 <= I7 - 1 /\ -1 <= I8 - 1 /\ I12 <= 42 /\ -1 <= I12 - 1 /\ I10 + 1 <= I6 /\ 0 <= I6 - 1 /\ -1 <= I10 - 1] f2(I13, I14, I15, I16) -> f10(I17, I18, I15, I19) [-1 <= I17 - 1 /\ -1 <= I14 - 1 /\ 0 <= I13 - 1 /\ I17 <= I14] f8(I20, I21, I22, I23) -> f9(I24, I25, I26, I27) [0 <= I25 - 1 /\ 2 <= I20 - 1 /\ I25 + 2 <= I20 /\ -1 <= I22 - 1 /\ 0 <= I26 - 1 /\ 0 <= I23 - 1 /\ 0 <= I21 - 1] f8(I28, I29, I30, I31) -> f9(I32, I33, I31, I34) [0 <= I33 - 1 /\ 2 <= I28 - 1 /\ I33 + 2 <= I28 /\ -1 <= I30 - 1 /\ 0 <= I31 - 1 /\ 0 <= I29 - 1] f1(I35, I36, I37, I38) -> f9(I39, I40, 0, I41) [0 <= I40 - 1 /\ 0 <= I39 - 1 /\ 0 <= I35 - 1 /\ I40 <= I35 /\ -1 <= I36 - 1 /\ I39 <= I35] f8(I42, I43, I44, I45) -> f8(I46, I43 - 1, I44, I47) [0 <= I43 - 1 /\ 0 <= I45 - 1 /\ 0 <= I48 - 1 /\ I46 - 3 <= I42 /\ 2 <= I42 - 1 /\ 5 <= I46 - 1] f8(I49, I50, I51, I52) -> f8(I53, I50 - 1, I51, I54) [0 <= I50 - 1 /\ 0 <= I52 - 1 /\ 0 <= I55 - 1 /\ I53 - 3 <= I49 /\ 2 <= I49 - 1 /\ 5 <= I53 - 1] f8(I56, I57, I58, I59) -> f8(I60, I57 - 1, I58, I61) [0 <= I57 - 1 /\ 0 <= I59 - 1 /\ 0 <= I62 - 1 /\ I60 - 2 <= I56 /\ 2 <= I56 - 1 /\ 3 <= I60 - 1] f8(I63, I64, I65, I66) -> f8(I67, I64 - 1, I65, I68) [0 <= I64 - 1 /\ 0 <= I66 - 1 /\ 0 <= I69 - 1 /\ I67 - 2 <= I63 /\ 2 <= I63 - 1 /\ 3 <= I67 - 1] f8(I70, I71, I72, I73) -> f8(I74, I71 - 1, I72, I73) [-1 <= I74 - 1 /\ 1 <= I70 - 1 /\ 0 <= I71 - 1 /\ I74 + 2 <= I70] f5(I75, I76, I77, I78) -> f8(I79, I80, I81, I82) [0 <= I83 - 1 /\ -1 <= I80 - 1 /\ I79 - 1 <= I75 /\ 0 <= I75 - 1 /\ 1 <= I79 - 1 /\ I83 + 1 = I82] f7(I84, I85, I86, I87) -> f8(I88, I89, I90, I91) [0 <= I92 - 1 /\ -1 <= I89 - 1 /\ I88 - 3 <= I84 /\ 0 <= I84 - 1 /\ 3 <= I88 - 1 /\ I92 + 1 = I91] f1(I93, I94, I95, I96) -> f7(I97, I98, I99, I100) [0 <= I97 - 1 /\ 0 <= I93 - 1 /\ I97 <= I93] f6(I101, I102, I103, I104) -> f7(I105, I106, I107, I108) [0 <= I105 - 1] f1(I109, I110, I111, I112) -> f5(I113, I114, I115, I116) [0 <= I113 - 1 /\ 0 <= I109 - 1 /\ I113 <= I109] f4(I117, I118, I119, I120) -> f5(I121, I122, I123, I124) [0 <= I121 - 1] f3(I125, I126, I127, I128) -> f2(I129, I130, 2, I131) [-1 <= I130 - 1 /\ 0 <= I129 - 1 /\ -1 <= I126 - 1 /\ 0 <= I125 - 1 /\ I130 <= I126 /\ I129 - 1 <= I126 /\ I129 <= I125] f1(I132, I133, I134, I135) -> f2(I136, I137, I138, I139) [-1 <= I137 - 1 /\ 0 <= I136 - 1 /\ 0 <= I132 - 1 /\ I136 <= I132] The dependency graph for this problem is: 0 -> 11, 13, 16 1 -> 1, 2 2 -> 1, 2 3 -> 1, 2 4 -> 4, 5, 6, 7, 8 5 -> 4, 5, 6, 7, 8 6 -> 4, 5, 6, 7, 8 7 -> 4, 5, 6, 7, 8 8 -> 4, 5, 6, 7, 8 9 -> 4, 5, 6, 7, 8 10 -> 4, 5, 6, 7, 8 11 -> 10 12 -> 10 13 -> 9 14 -> 9 15 -> 3 16 -> 3 Where: 0) init#(x1, x2, x3, x4) -> f1#(rnd1, rnd2, rnd3, rnd4) 1) f10#(I0, I1, I2, I3) -> f10#(I4, I1, I2 + 1, I5) [-1 <= I1 - 1 /\ 42 <= y1 - 1 /\ -1 <= I2 - 1 /\ I4 + 1 <= I0 /\ 0 <= I0 - 1 /\ -1 <= I4 - 1] 2) f10#(I6, I7, I8, I9) -> f10#(I10, I7, I8 + 1, I11) [-1 <= I7 - 1 /\ -1 <= I8 - 1 /\ I12 <= 42 /\ -1 <= I12 - 1 /\ I10 + 1 <= I6 /\ 0 <= I6 - 1 /\ -1 <= I10 - 1] 3) f2#(I13, I14, I15, I16) -> f10#(I17, I18, I15, I19) [-1 <= I17 - 1 /\ -1 <= I14 - 1 /\ 0 <= I13 - 1 /\ I17 <= I14] 4) f8#(I42, I43, I44, I45) -> f8#(I46, I43 - 1, I44, I47) [0 <= I43 - 1 /\ 0 <= I45 - 1 /\ 0 <= I48 - 1 /\ I46 - 3 <= I42 /\ 2 <= I42 - 1 /\ 5 <= I46 - 1] 5) f8#(I49, I50, I51, I52) -> f8#(I53, I50 - 1, I51, I54) [0 <= I50 - 1 /\ 0 <= I52 - 1 /\ 0 <= I55 - 1 /\ I53 - 3 <= I49 /\ 2 <= I49 - 1 /\ 5 <= I53 - 1] 6) f8#(I56, I57, I58, I59) -> f8#(I60, I57 - 1, I58, I61) [0 <= I57 - 1 /\ 0 <= I59 - 1 /\ 0 <= I62 - 1 /\ I60 - 2 <= I56 /\ 2 <= I56 - 1 /\ 3 <= I60 - 1] 7) f8#(I63, I64, I65, I66) -> f8#(I67, I64 - 1, I65, I68) [0 <= I64 - 1 /\ 0 <= I66 - 1 /\ 0 <= I69 - 1 /\ I67 - 2 <= I63 /\ 2 <= I63 - 1 /\ 3 <= I67 - 1] 8) f8#(I70, I71, I72, I73) -> f8#(I74, I71 - 1, I72, I73) [-1 <= I74 - 1 /\ 1 <= I70 - 1 /\ 0 <= I71 - 1 /\ I74 + 2 <= I70] 9) f5#(I75, I76, I77, I78) -> f8#(I79, I80, I81, I82) [0 <= I83 - 1 /\ -1 <= I80 - 1 /\ I79 - 1 <= I75 /\ 0 <= I75 - 1 /\ 1 <= I79 - 1 /\ I83 + 1 = I82] 10) f7#(I84, I85, I86, I87) -> f8#(I88, I89, I90, I91) [0 <= I92 - 1 /\ -1 <= I89 - 1 /\ I88 - 3 <= I84 /\ 0 <= I84 - 1 /\ 3 <= I88 - 1 /\ I92 + 1 = I91] 11) f1#(I93, I94, I95, I96) -> f7#(I97, I98, I99, I100) [0 <= I97 - 1 /\ 0 <= I93 - 1 /\ I97 <= I93] 12) f6#(I101, I102, I103, I104) -> f7#(I105, I106, I107, I108) [0 <= I105 - 1] 13) f1#(I109, I110, I111, I112) -> f5#(I113, I114, I115, I116) [0 <= I113 - 1 /\ 0 <= I109 - 1 /\ I113 <= I109] 14) f4#(I117, I118, I119, I120) -> f5#(I121, I122, I123, I124) [0 <= I121 - 1] 15) f3#(I125, I126, I127, I128) -> f2#(I129, I130, 2, I131) [-1 <= I130 - 1 /\ 0 <= I129 - 1 /\ -1 <= I126 - 1 /\ 0 <= I125 - 1 /\ I130 <= I126 /\ I129 - 1 <= I126 /\ I129 <= I125] 16) f1#(I132, I133, I134, I135) -> f2#(I136, I137, I138, I139) [-1 <= I137 - 1 /\ 0 <= I136 - 1 /\ 0 <= I132 - 1 /\ I136 <= I132] We have the following SCCs. { 4, 5, 6, 7, 8 } { 1, 2 } DP problem for innermost termination. P = f10#(I0, I1, I2, I3) -> f10#(I4, I1, I2 + 1, I5) [-1 <= I1 - 1 /\ 42 <= y1 - 1 /\ -1 <= I2 - 1 /\ I4 + 1 <= I0 /\ 0 <= I0 - 1 /\ -1 <= I4 - 1] f10#(I6, I7, I8, I9) -> f10#(I10, I7, I8 + 1, I11) [-1 <= I7 - 1 /\ -1 <= I8 - 1 /\ I12 <= 42 /\ -1 <= I12 - 1 /\ I10 + 1 <= I6 /\ 0 <= I6 - 1 /\ -1 <= I10 - 1] R = init(x1, x2, x3, x4) -> f1(rnd1, rnd2, rnd3, rnd4) f10(I0, I1, I2, I3) -> f10(I4, I1, I2 + 1, I5) [-1 <= I1 - 1 /\ 42 <= y1 - 1 /\ -1 <= I2 - 1 /\ I4 + 1 <= I0 /\ 0 <= I0 - 1 /\ -1 <= I4 - 1] f10(I6, I7, I8, I9) -> f10(I10, I7, I8 + 1, I11) [-1 <= I7 - 1 /\ -1 <= I8 - 1 /\ I12 <= 42 /\ -1 <= I12 - 1 /\ I10 + 1 <= I6 /\ 0 <= I6 - 1 /\ -1 <= I10 - 1] f2(I13, I14, I15, I16) -> f10(I17, I18, I15, I19) [-1 <= I17 - 1 /\ -1 <= I14 - 1 /\ 0 <= I13 - 1 /\ I17 <= I14] f8(I20, I21, I22, I23) -> f9(I24, I25, I26, I27) [0 <= I25 - 1 /\ 2 <= I20 - 1 /\ I25 + 2 <= I20 /\ -1 <= I22 - 1 /\ 0 <= I26 - 1 /\ 0 <= I23 - 1 /\ 0 <= I21 - 1] f8(I28, I29, I30, I31) -> f9(I32, I33, I31, I34) [0 <= I33 - 1 /\ 2 <= I28 - 1 /\ I33 + 2 <= I28 /\ -1 <= I30 - 1 /\ 0 <= I31 - 1 /\ 0 <= I29 - 1] f1(I35, I36, I37, I38) -> f9(I39, I40, 0, I41) [0 <= I40 - 1 /\ 0 <= I39 - 1 /\ 0 <= I35 - 1 /\ I40 <= I35 /\ -1 <= I36 - 1 /\ I39 <= I35] f8(I42, I43, I44, I45) -> f8(I46, I43 - 1, I44, I47) [0 <= I43 - 1 /\ 0 <= I45 - 1 /\ 0 <= I48 - 1 /\ I46 - 3 <= I42 /\ 2 <= I42 - 1 /\ 5 <= I46 - 1] f8(I49, I50, I51, I52) -> f8(I53, I50 - 1, I51, I54) [0 <= I50 - 1 /\ 0 <= I52 - 1 /\ 0 <= I55 - 1 /\ I53 - 3 <= I49 /\ 2 <= I49 - 1 /\ 5 <= I53 - 1] f8(I56, I57, I58, I59) -> f8(I60, I57 - 1, I58, I61) [0 <= I57 - 1 /\ 0 <= I59 - 1 /\ 0 <= I62 - 1 /\ I60 - 2 <= I56 /\ 2 <= I56 - 1 /\ 3 <= I60 - 1] f8(I63, I64, I65, I66) -> f8(I67, I64 - 1, I65, I68) [0 <= I64 - 1 /\ 0 <= I66 - 1 /\ 0 <= I69 - 1 /\ I67 - 2 <= I63 /\ 2 <= I63 - 1 /\ 3 <= I67 - 1] f8(I70, I71, I72, I73) -> f8(I74, I71 - 1, I72, I73) [-1 <= I74 - 1 /\ 1 <= I70 - 1 /\ 0 <= I71 - 1 /\ I74 + 2 <= I70] f5(I75, I76, I77, I78) -> f8(I79, I80, I81, I82) [0 <= I83 - 1 /\ -1 <= I80 - 1 /\ I79 - 1 <= I75 /\ 0 <= I75 - 1 /\ 1 <= I79 - 1 /\ I83 + 1 = I82] f7(I84, I85, I86, I87) -> f8(I88, I89, I90, I91) [0 <= I92 - 1 /\ -1 <= I89 - 1 /\ I88 - 3 <= I84 /\ 0 <= I84 - 1 /\ 3 <= I88 - 1 /\ I92 + 1 = I91] f1(I93, I94, I95, I96) -> f7(I97, I98, I99, I100) [0 <= I97 - 1 /\ 0 <= I93 - 1 /\ I97 <= I93] f6(I101, I102, I103, I104) -> f7(I105, I106, I107, I108) [0 <= I105 - 1] f1(I109, I110, I111, I112) -> f5(I113, I114, I115, I116) [0 <= I113 - 1 /\ 0 <= I109 - 1 /\ I113 <= I109] f4(I117, I118, I119, I120) -> f5(I121, I122, I123, I124) [0 <= I121 - 1] f3(I125, I126, I127, I128) -> f2(I129, I130, 2, I131) [-1 <= I130 - 1 /\ 0 <= I129 - 1 /\ -1 <= I126 - 1 /\ 0 <= I125 - 1 /\ I130 <= I126 /\ I129 - 1 <= I126 /\ I129 <= I125] f1(I132, I133, I134, I135) -> f2(I136, I137, I138, I139) [-1 <= I137 - 1 /\ 0 <= I136 - 1 /\ 0 <= I132 - 1 /\ I136 <= I132] We use the basic value criterion with the projection function NU: NU[f10#(z1,z2,z3,z4)] = z1 This gives the following inequalities: -1 <= I1 - 1 /\ 42 <= y1 - 1 /\ -1 <= I2 - 1 /\ I4 + 1 <= I0 /\ 0 <= I0 - 1 /\ -1 <= I4 - 1 ==> I0 >! I4 -1 <= I7 - 1 /\ -1 <= I8 - 1 /\ I12 <= 42 /\ -1 <= I12 - 1 /\ I10 + 1 <= I6 /\ 0 <= I6 - 1 /\ -1 <= I10 - 1 ==> I6 >! I10 All dependency pairs are strictly oriented, so the entire dependency pair problem may be removed. DP problem for innermost termination. P = f8#(I42, I43, I44, I45) -> f8#(I46, I43 - 1, I44, I47) [0 <= I43 - 1 /\ 0 <= I45 - 1 /\ 0 <= I48 - 1 /\ I46 - 3 <= I42 /\ 2 <= I42 - 1 /\ 5 <= I46 - 1] f8#(I49, I50, I51, I52) -> f8#(I53, I50 - 1, I51, I54) [0 <= I50 - 1 /\ 0 <= I52 - 1 /\ 0 <= I55 - 1 /\ I53 - 3 <= I49 /\ 2 <= I49 - 1 /\ 5 <= I53 - 1] f8#(I56, I57, I58, I59) -> f8#(I60, I57 - 1, I58, I61) [0 <= I57 - 1 /\ 0 <= I59 - 1 /\ 0 <= I62 - 1 /\ I60 - 2 <= I56 /\ 2 <= I56 - 1 /\ 3 <= I60 - 1] f8#(I63, I64, I65, I66) -> f8#(I67, I64 - 1, I65, I68) [0 <= I64 - 1 /\ 0 <= I66 - 1 /\ 0 <= I69 - 1 /\ I67 - 2 <= I63 /\ 2 <= I63 - 1 /\ 3 <= I67 - 1] f8#(I70, I71, I72, I73) -> f8#(I74, I71 - 1, I72, I73) [-1 <= I74 - 1 /\ 1 <= I70 - 1 /\ 0 <= I71 - 1 /\ I74 + 2 <= I70] R = init(x1, x2, x3, x4) -> f1(rnd1, rnd2, rnd3, rnd4) f10(I0, I1, I2, I3) -> f10(I4, I1, I2 + 1, I5) [-1 <= I1 - 1 /\ 42 <= y1 - 1 /\ -1 <= I2 - 1 /\ I4 + 1 <= I0 /\ 0 <= I0 - 1 /\ -1 <= I4 - 1] f10(I6, I7, I8, I9) -> f10(I10, I7, I8 + 1, I11) [-1 <= I7 - 1 /\ -1 <= I8 - 1 /\ I12 <= 42 /\ -1 <= I12 - 1 /\ I10 + 1 <= I6 /\ 0 <= I6 - 1 /\ -1 <= I10 - 1] f2(I13, I14, I15, I16) -> f10(I17, I18, I15, I19) [-1 <= I17 - 1 /\ -1 <= I14 - 1 /\ 0 <= I13 - 1 /\ I17 <= I14] f8(I20, I21, I22, I23) -> f9(I24, I25, I26, I27) [0 <= I25 - 1 /\ 2 <= I20 - 1 /\ I25 + 2 <= I20 /\ -1 <= I22 - 1 /\ 0 <= I26 - 1 /\ 0 <= I23 - 1 /\ 0 <= I21 - 1] f8(I28, I29, I30, I31) -> f9(I32, I33, I31, I34) [0 <= I33 - 1 /\ 2 <= I28 - 1 /\ I33 + 2 <= I28 /\ -1 <= I30 - 1 /\ 0 <= I31 - 1 /\ 0 <= I29 - 1] f1(I35, I36, I37, I38) -> f9(I39, I40, 0, I41) [0 <= I40 - 1 /\ 0 <= I39 - 1 /\ 0 <= I35 - 1 /\ I40 <= I35 /\ -1 <= I36 - 1 /\ I39 <= I35] f8(I42, I43, I44, I45) -> f8(I46, I43 - 1, I44, I47) [0 <= I43 - 1 /\ 0 <= I45 - 1 /\ 0 <= I48 - 1 /\ I46 - 3 <= I42 /\ 2 <= I42 - 1 /\ 5 <= I46 - 1] f8(I49, I50, I51, I52) -> f8(I53, I50 - 1, I51, I54) [0 <= I50 - 1 /\ 0 <= I52 - 1 /\ 0 <= I55 - 1 /\ I53 - 3 <= I49 /\ 2 <= I49 - 1 /\ 5 <= I53 - 1] f8(I56, I57, I58, I59) -> f8(I60, I57 - 1, I58, I61) [0 <= I57 - 1 /\ 0 <= I59 - 1 /\ 0 <= I62 - 1 /\ I60 - 2 <= I56 /\ 2 <= I56 - 1 /\ 3 <= I60 - 1] f8(I63, I64, I65, I66) -> f8(I67, I64 - 1, I65, I68) [0 <= I64 - 1 /\ 0 <= I66 - 1 /\ 0 <= I69 - 1 /\ I67 - 2 <= I63 /\ 2 <= I63 - 1 /\ 3 <= I67 - 1] f8(I70, I71, I72, I73) -> f8(I74, I71 - 1, I72, I73) [-1 <= I74 - 1 /\ 1 <= I70 - 1 /\ 0 <= I71 - 1 /\ I74 + 2 <= I70] f5(I75, I76, I77, I78) -> f8(I79, I80, I81, I82) [0 <= I83 - 1 /\ -1 <= I80 - 1 /\ I79 - 1 <= I75 /\ 0 <= I75 - 1 /\ 1 <= I79 - 1 /\ I83 + 1 = I82] f7(I84, I85, I86, I87) -> f8(I88, I89, I90, I91) [0 <= I92 - 1 /\ -1 <= I89 - 1 /\ I88 - 3 <= I84 /\ 0 <= I84 - 1 /\ 3 <= I88 - 1 /\ I92 + 1 = I91] f1(I93, I94, I95, I96) -> f7(I97, I98, I99, I100) [0 <= I97 - 1 /\ 0 <= I93 - 1 /\ I97 <= I93] f6(I101, I102, I103, I104) -> f7(I105, I106, I107, I108) [0 <= I105 - 1] f1(I109, I110, I111, I112) -> f5(I113, I114, I115, I116) [0 <= I113 - 1 /\ 0 <= I109 - 1 /\ I113 <= I109] f4(I117, I118, I119, I120) -> f5(I121, I122, I123, I124) [0 <= I121 - 1] f3(I125, I126, I127, I128) -> f2(I129, I130, 2, I131) [-1 <= I130 - 1 /\ 0 <= I129 - 1 /\ -1 <= I126 - 1 /\ 0 <= I125 - 1 /\ I130 <= I126 /\ I129 - 1 <= I126 /\ I129 <= I125] f1(I132, I133, I134, I135) -> f2(I136, I137, I138, I139) [-1 <= I137 - 1 /\ 0 <= I136 - 1 /\ 0 <= I132 - 1 /\ I136 <= I132] We use the basic value criterion with the projection function NU: NU[f8#(z1,z2,z3,z4)] = z2 This gives the following inequalities: 0 <= I43 - 1 /\ 0 <= I45 - 1 /\ 0 <= I48 - 1 /\ I46 - 3 <= I42 /\ 2 <= I42 - 1 /\ 5 <= I46 - 1 ==> I43 >! I43 - 1 0 <= I50 - 1 /\ 0 <= I52 - 1 /\ 0 <= I55 - 1 /\ I53 - 3 <= I49 /\ 2 <= I49 - 1 /\ 5 <= I53 - 1 ==> I50 >! I50 - 1 0 <= I57 - 1 /\ 0 <= I59 - 1 /\ 0 <= I62 - 1 /\ I60 - 2 <= I56 /\ 2 <= I56 - 1 /\ 3 <= I60 - 1 ==> I57 >! I57 - 1 0 <= I64 - 1 /\ 0 <= I66 - 1 /\ 0 <= I69 - 1 /\ I67 - 2 <= I63 /\ 2 <= I63 - 1 /\ 3 <= I67 - 1 ==> I64 >! I64 - 1 -1 <= I74 - 1 /\ 1 <= I70 - 1 /\ 0 <= I71 - 1 /\ I74 + 2 <= I70 ==> I71 >! I71 - 1 All dependency pairs are strictly oriented, so the entire dependency pair problem may be removed.