2.42/1.26 NO 2.42/1.26 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 2.42/1.26 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.42/1.26 2.42/1.26 2.42/1.26 Outermost Termination of the given OTRS could be disproven: 2.42/1.26 2.42/1.26 (0) OTRS 2.42/1.26 (1) OutermostNonTerminationProof [COMPLETE, 0 ms] 2.42/1.26 (2) NO 2.42/1.26 2.42/1.26 2.42/1.26 ---------------------------------------- 2.42/1.26 2.42/1.26 (0) 2.42/1.26 Obligation: 2.42/1.26 Term rewrite system R: 2.42/1.26 The TRS R consists of the following rules: 2.42/1.26 2.42/1.26 U61(tt) -> s(length(L)) 2.42/1.26 and(tt) -> X 2.42/1.26 zeros -> cons(0) 2.42/1.26 U11(tt) -> U12(isNatList) 2.42/1.26 U12(tt) -> tt 2.42/1.26 U21(tt) -> U22(isNat) 2.42/1.26 U22(tt) -> tt 2.42/1.26 U31(tt) -> U32(isNatList) 2.42/1.26 U32(tt) -> tt 2.42/1.26 U41(tt) -> U42(isNat) 2.42/1.26 U42(tt) -> U43(isNatIList) 2.42/1.26 U43(tt) -> tt 2.42/1.26 U51(tt) -> U52(isNat) 2.42/1.26 U52(tt) -> U53(isNatList) 2.42/1.26 U53(tt) -> tt 2.42/1.26 isNat -> tt 2.42/1.26 isNat -> U11(isNatIListKind) 2.42/1.26 isNat -> U21(isNatKind) 2.42/1.26 isNatIList -> U31(isNatIListKind) 2.42/1.26 isNatIList -> tt 2.42/1.26 isNatIList -> U41(and(isNatKind)) 2.42/1.26 isNatIListKind -> tt 2.42/1.26 isNatIListKind -> and(isNatKind) 2.42/1.26 isNatKind -> tt 2.42/1.26 isNatKind -> isNatIListKind 2.42/1.26 isNatKind -> isNatKind 2.42/1.26 isNatList -> tt 2.42/1.26 isNatList -> U51(and(isNatKind)) 2.42/1.26 length(nil) -> 0 2.42/1.26 length(cons(N)) -> U61(and(and(isNatList))) 2.42/1.26 2.42/1.26 2.42/1.26 2.42/1.26 Outermost Strategy. 2.42/1.26 2.42/1.26 ---------------------------------------- 2.42/1.26 2.42/1.26 (1) OutermostNonTerminationProof (COMPLETE) 2.42/1.26 Term rewrite system R: 2.42/1.26 The TRS R consists of the following rules: 2.42/1.26 2.42/1.26 U61(tt) -> s(length(L)) 2.42/1.26 and(tt) -> X 2.42/1.26 zeros -> cons(0) 2.42/1.26 U11(tt) -> U12(isNatList) 2.42/1.26 U12(tt) -> tt 2.42/1.26 U21(tt) -> U22(isNat) 2.42/1.26 U22(tt) -> tt 2.42/1.26 U31(tt) -> U32(isNatList) 2.42/1.26 U32(tt) -> tt 2.42/1.26 U41(tt) -> U42(isNat) 2.42/1.26 U42(tt) -> U43(isNatIList) 2.42/1.26 U43(tt) -> tt 2.42/1.26 U51(tt) -> U52(isNat) 2.42/1.26 U52(tt) -> U53(isNatList) 2.42/1.26 U53(tt) -> tt 2.42/1.26 isNat -> tt 2.42/1.26 isNat -> U11(isNatIListKind) 2.42/1.26 isNat -> U21(isNatKind) 2.42/1.26 isNatIList -> U31(isNatIListKind) 2.42/1.26 isNatIList -> tt 2.42/1.26 isNatIList -> U41(and(isNatKind)) 2.42/1.26 isNatIListKind -> tt 2.42/1.26 isNatIListKind -> and(isNatKind) 2.42/1.26 isNatKind -> tt 2.42/1.26 isNatKind -> isNatIListKind 2.42/1.26 isNatKind -> isNatKind 2.42/1.26 isNatList -> tt 2.42/1.26 isNatList -> U51(and(isNatKind)) 2.42/1.27 length(nil) -> 0 2.42/1.27 length(cons(N)) -> U61(and(and(isNatList))) 2.42/1.27 2.42/1.27 2.42/1.27 2.42/1.27 Outermost Strategy. 2.42/1.27 2.42/1.27 ---------- Loop: ---------- 2.42/1.27 2.42/1.27 U61(tt) -> s(length(U61(tt))) with rule U61(tt) -> s(length(L)) at position [] and matcher [L / U61(tt)] 2.42/1.27 2.42/1.27 Now an instance of the first term with Matcher [ ] occurs in the last term at position [0,0]. 2.42/1.27 2.42/1.27 Context: s(length([])) 2.42/1.27 2.42/1.27 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.42/1.27 ---------------------------------------- 2.42/1.27 2.42/1.27 (2) 2.42/1.27 NO 2.42/1.29 EOF