2.73/1.28 NO 2.73/1.29 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 2.73/1.29 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.73/1.29 2.73/1.29 2.73/1.29 Outermost Termination of the given OTRS could be disproven: 2.73/1.29 2.73/1.29 (0) OTRS 2.73/1.29 (1) OutermostNonTerminationProof [COMPLETE, 0 ms] 2.73/1.29 (2) NO 2.73/1.29 2.73/1.29 2.73/1.29 ---------------------------------------- 2.73/1.29 2.73/1.29 (0) 2.73/1.29 Obligation: 2.73/1.29 Term rewrite system R: 2.73/1.29 The TRS R consists of the following rules: 2.73/1.29 2.73/1.29 U11(tt) -> s(length(L)) 2.73/1.29 and(tt) -> X 2.73/1.29 zeros -> cons(0) 2.73/1.29 isNat -> tt 2.73/1.29 isNat -> isNatList 2.73/1.29 isNat -> isNat 2.73/1.29 isNatIList -> isNatList 2.73/1.29 isNatIList -> tt 2.73/1.29 isNatIList -> and(isNat) 2.73/1.29 isNatList -> tt 2.73/1.29 isNatList -> and(isNat) 2.73/1.29 length(nil) -> 0 2.73/1.29 length(cons(N)) -> U11(and(isNatList)) 2.73/1.29 2.73/1.29 2.73/1.29 2.73/1.29 Outermost Strategy. 2.73/1.29 2.73/1.29 ---------------------------------------- 2.73/1.29 2.73/1.29 (1) OutermostNonTerminationProof (COMPLETE) 2.73/1.29 Term rewrite system R: 2.73/1.29 The TRS R consists of the following rules: 2.73/1.29 2.73/1.29 U11(tt) -> s(length(L)) 2.73/1.29 and(tt) -> X 2.73/1.29 zeros -> cons(0) 2.73/1.29 isNat -> tt 2.73/1.29 isNat -> isNatList 2.73/1.29 isNat -> isNat 2.73/1.29 isNatIList -> isNatList 2.73/1.29 isNatIList -> tt 2.73/1.29 isNatIList -> and(isNat) 2.73/1.29 isNatList -> tt 2.73/1.29 isNatList -> and(isNat) 2.73/1.29 length(nil) -> 0 2.73/1.29 length(cons(N)) -> U11(and(isNatList)) 2.73/1.29 2.73/1.29 2.73/1.29 2.73/1.29 Outermost Strategy. 2.73/1.29 2.73/1.29 ---------- Loop: ---------- 2.73/1.29 2.73/1.29 U11(tt) -> s(length(U11(tt))) with rule U11(tt) -> s(length(L)) at position [] and matcher [L / U11(tt)] 2.73/1.29 2.73/1.29 Now an instance of the first term with Matcher [ ] occurs in the last term at position [0,0]. 2.73/1.29 2.73/1.29 Context: s(length([])) 2.73/1.29 2.73/1.29 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.73/1.29 ---------------------------------------- 2.73/1.29 2.73/1.29 (2) 2.73/1.29 NO 2.73/1.32 EOF