/export/starexec/sandbox/solver/bin/starexec_run_FirstOrder /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- MAYBE We consider the system theBenchmark. We are asked to determine termination of the following first-order TRS. 0 : [] --> o U11 : [o] --> o U21 : [o] --> o U31 : [o] --> o U41 : [o * o] --> o U42 : [o] --> o U51 : [o * o] --> o U52 : [o] --> o U61 : [o * o] --> o U62 : [o] --> o U71 : [o * o * o] --> o U72 : [o * o] --> o U81 : [o] --> o U91 : [o * o * o * o] --> o U92 : [o * o * o * o] --> o U93 : [o * o * o * o] --> o active : [o] --> o cons : [o * o] --> o isNat : [o] --> o isNatIList : [o] --> o isNatList : [o] --> o length : [o] --> o mark : [o] --> o nil : [] --> o ok : [o] --> o proper : [o] --> o s : [o] --> o take : [o * o] --> o top : [o] --> o tt : [] --> o zeros : [] --> o active(zeros) => mark(cons(0, zeros)) active(U11(tt)) => mark(tt) active(U21(tt)) => mark(tt) active(U31(tt)) => mark(tt) active(U41(tt, X)) => mark(U42(isNatIList(X))) active(U42(tt)) => mark(tt) active(U51(tt, X)) => mark(U52(isNatList(X))) active(U52(tt)) => mark(tt) active(U61(tt, X)) => mark(U62(isNatIList(X))) active(U62(tt)) => mark(tt) active(U71(tt, X, Y)) => mark(U72(isNat(Y), X)) active(U72(tt, X)) => mark(s(length(X))) active(U81(tt)) => mark(nil) active(U91(tt, X, Y, Z)) => mark(U92(isNat(Y), X, Y, Z)) active(U92(tt, X, Y, Z)) => mark(U93(isNat(Z), X, Y, Z)) active(U93(tt, X, Y, Z)) => mark(cons(Z, take(Y, X))) active(isNat(0)) => mark(tt) active(isNat(length(X))) => mark(U11(isNatList(X))) active(isNat(s(X))) => mark(U21(isNat(X))) active(isNatIList(X)) => mark(U31(isNatList(X))) active(isNatIList(zeros)) => mark(tt) active(isNatIList(cons(X, Y))) => mark(U41(isNat(X), Y)) active(isNatList(nil)) => mark(tt) active(isNatList(cons(X, Y))) => mark(U51(isNat(X), Y)) active(isNatList(take(X, Y))) => mark(U61(isNat(X), Y)) active(length(nil)) => mark(0) active(length(cons(X, Y))) => mark(U71(isNatList(Y), Y, X)) active(take(0, X)) => mark(U81(isNatIList(X))) active(take(s(X), cons(Y, Z))) => mark(U91(isNatIList(Z), Z, X, Y)) active(cons(X, Y)) => cons(active(X), Y) active(U11(X)) => U11(active(X)) active(U21(X)) => U21(active(X)) active(U31(X)) => U31(active(X)) active(U41(X, Y)) => U41(active(X), Y) active(U42(X)) => U42(active(X)) active(U51(X, Y)) => U51(active(X), Y) active(U52(X)) => U52(active(X)) active(U61(X, Y)) => U61(active(X), Y) active(U62(X)) => U62(active(X)) active(U71(X, Y, Z)) => U71(active(X), Y, Z) active(U72(X, Y)) => U72(active(X), Y) active(s(X)) => s(active(X)) active(length(X)) => length(active(X)) active(U81(X)) => U81(active(X)) active(U91(X, Y, Z, U)) => U91(active(X), Y, Z, U) active(U92(X, Y, Z, U)) => U92(active(X), Y, Z, U) active(U93(X, Y, Z, U)) => U93(active(X), Y, Z, U) active(take(X, Y)) => take(active(X), Y) active(take(X, Y)) => take(X, active(Y)) cons(mark(X), Y) => mark(cons(X, Y)) U11(mark(X)) => mark(U11(X)) U21(mark(X)) => mark(U21(X)) U31(mark(X)) => mark(U31(X)) U41(mark(X), Y) => mark(U41(X, Y)) U42(mark(X)) => mark(U42(X)) U51(mark(X), Y) => mark(U51(X, Y)) U52(mark(X)) => mark(U52(X)) U61(mark(X), Y) => mark(U61(X, Y)) U62(mark(X)) => mark(U62(X)) U71(mark(X), Y, Z) => mark(U71(X, Y, Z)) U72(mark(X), Y) => mark(U72(X, Y)) s(mark(X)) => mark(s(X)) length(mark(X)) => mark(length(X)) U81(mark(X)) => mark(U81(X)) U91(mark(X), Y, Z, U) => mark(U91(X, Y, Z, U)) U92(mark(X), Y, Z, U) => mark(U92(X, Y, Z, U)) U93(mark(X), Y, Z, U) => mark(U93(X, Y, Z, U)) take(mark(X), Y) => mark(take(X, Y)) take(X, mark(Y)) => mark(take(X, Y)) proper(zeros) => ok(zeros) proper(cons(X, Y)) => cons(proper(X), proper(Y)) proper(0) => ok(0) proper(U11(X)) => U11(proper(X)) proper(tt) => ok(tt) proper(U21(X)) => U21(proper(X)) proper(U31(X)) => U31(proper(X)) proper(U41(X, Y)) => U41(proper(X), proper(Y)) proper(U42(X)) => U42(proper(X)) proper(isNatIList(X)) => isNatIList(proper(X)) proper(U51(X, Y)) => U51(proper(X), proper(Y)) proper(U52(X)) => U52(proper(X)) proper(isNatList(X)) => isNatList(proper(X)) proper(U61(X, Y)) => U61(proper(X), proper(Y)) proper(U62(X)) => U62(proper(X)) proper(U71(X, Y, Z)) => U71(proper(X), proper(Y), proper(Z)) proper(U72(X, Y)) => U72(proper(X), proper(Y)) proper(isNat(X)) => isNat(proper(X)) proper(s(X)) => s(proper(X)) proper(length(X)) => length(proper(X)) proper(U81(X)) => U81(proper(X)) proper(nil) => ok(nil) proper(U91(X, Y, Z, U)) => U91(proper(X), proper(Y), proper(Z), proper(U)) proper(U92(X, Y, Z, U)) => U92(proper(X), proper(Y), proper(Z), proper(U)) proper(U93(X, Y, Z, U)) => U93(proper(X), proper(Y), proper(Z), proper(U)) proper(take(X, Y)) => take(proper(X), proper(Y)) cons(ok(X), ok(Y)) => ok(cons(X, Y)) U11(ok(X)) => ok(U11(X)) U21(ok(X)) => ok(U21(X)) U31(ok(X)) => ok(U31(X)) U41(ok(X), ok(Y)) => ok(U41(X, Y)) U42(ok(X)) => ok(U42(X)) isNatIList(ok(X)) => ok(isNatIList(X)) U51(ok(X), ok(Y)) => ok(U51(X, Y)) U52(ok(X)) => ok(U52(X)) isNatList(ok(X)) => ok(isNatList(X)) U61(ok(X), ok(Y)) => ok(U61(X, Y)) U62(ok(X)) => ok(U62(X)) U71(ok(X), ok(Y), ok(Z)) => ok(U71(X, Y, Z)) U72(ok(X), ok(Y)) => ok(U72(X, Y)) isNat(ok(X)) => ok(isNat(X)) s(ok(X)) => ok(s(X)) length(ok(X)) => ok(length(X)) U81(ok(X)) => ok(U81(X)) U91(ok(X), ok(Y), ok(Z), ok(U)) => ok(U91(X, Y, Z, U)) U92(ok(X), ok(Y), ok(Z), ok(U)) => ok(U92(X, Y, Z, U)) U93(ok(X), ok(Y), ok(Z), ok(U)) => ok(U93(X, Y, Z, U)) take(ok(X), ok(Y)) => ok(take(X, Y)) top(mark(X)) => top(proper(X)) top(ok(X)) => top(active(X))