/export/starexec/sandbox2/solver/bin/starexec_run_FirstOrder /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/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 activate : [o] --> o cons : [o * o] --> o isNat : [o] --> o isNatIList : [o] --> o isNatList : [o] --> o length : [o] --> o n!6220!62200 : [] --> o n!6220!6220cons : [o * o] --> o n!6220!6220length : [o] --> o n!6220!6220nil : [] --> o n!6220!6220s : [o] --> o n!6220!6220take : [o * o] --> o n!6220!6220zeros : [] --> o nil : [] --> o s : [o] --> o take : [o * o] --> o tt : [] --> o zeros : [] --> o zeros => cons(0, n!6220!6220zeros) U11(tt) => tt U21(tt) => tt U31(tt) => tt U41(tt, X) => U42(isNatIList(activate(X))) U42(tt) => tt U51(tt, X) => U52(isNatList(activate(X))) U52(tt) => tt U61(tt, X) => U62(isNatIList(activate(X))) U62(tt) => tt U71(tt, X, Y) => U72(isNat(activate(Y)), activate(X)) U72(tt, X) => s(length(activate(X))) U81(tt) => nil U91(tt, X, Y, Z) => U92(isNat(activate(Y)), activate(X), activate(Y), activate(Z)) U92(tt, X, Y, Z) => U93(isNat(activate(Z)), activate(X), activate(Y), activate(Z)) U93(tt, X, Y, Z) => cons(activate(Z), n!6220!6220take(activate(Y), activate(X))) isNat(n!6220!62200) => tt isNat(n!6220!6220length(X)) => U11(isNatList(activate(X))) isNat(n!6220!6220s(X)) => U21(isNat(activate(X))) isNatIList(X) => U31(isNatList(activate(X))) isNatIList(n!6220!6220zeros) => tt isNatIList(n!6220!6220cons(X, Y)) => U41(isNat(activate(X)), activate(Y)) isNatList(n!6220!6220nil) => tt isNatList(n!6220!6220cons(X, Y)) => U51(isNat(activate(X)), activate(Y)) isNatList(n!6220!6220take(X, Y)) => U61(isNat(activate(X)), activate(Y)) length(nil) => 0 length(cons(X, Y)) => U71(isNatList(activate(Y)), activate(Y), X) take(0, X) => U81(isNatIList(X)) take(s(X), cons(Y, Z)) => U91(isNatIList(activate(Z)), activate(Z), X, Y) zeros => n!6220!6220zeros take(X, Y) => n!6220!6220take(X, Y) 0 => n!6220!62200 length(X) => n!6220!6220length(X) s(X) => n!6220!6220s(X) cons(X, Y) => n!6220!6220cons(X, Y) nil => n!6220!6220nil activate(n!6220!6220zeros) => zeros activate(n!6220!6220take(X, Y)) => take(activate(X), activate(Y)) activate(n!6220!62200) => 0 activate(n!6220!6220length(X)) => length(activate(X)) activate(n!6220!6220s(X)) => s(activate(X)) activate(n!6220!6220cons(X, Y)) => cons(activate(X), Y) activate(n!6220!6220nil) => nil activate(X) => X