2.56/1.22 NO 2.56/1.23 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 2.56/1.23 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.56/1.23 2.56/1.23 2.56/1.23 Outermost Termination of the given OTRS could be disproven: 2.56/1.23 2.56/1.23 (0) OTRS 2.56/1.23 (1) OutermostNonTerminationProof [COMPLETE, 0 ms] 2.56/1.23 (2) NO 2.56/1.23 2.56/1.23 2.56/1.23 ---------------------------------------- 2.56/1.23 2.56/1.23 (0) 2.56/1.23 Obligation: 2.56/1.23 Term rewrite system R: 2.56/1.23 The TRS R consists of the following rules: 2.56/1.23 2.56/1.23 uTake2(tt) -> cons(N) 2.56/1.23 uLength(tt) -> s(length(L)) 2.56/1.23 and(tt, T) -> T 2.56/1.23 isNatIList -> isNatList 2.56/1.23 isNat -> tt 2.56/1.23 isNat -> isNat 2.56/1.23 isNat -> isNatList 2.56/1.23 isNatIList -> tt 2.56/1.23 isNatIList -> and(isNat, isNatIList) 2.56/1.23 isNatList -> tt 2.56/1.23 isNatList -> and(isNat, isNatList) 2.56/1.23 isNatList -> and(isNat, isNatIList) 2.56/1.23 zeros -> cons(0) 2.56/1.23 take(0, IL) -> uTake1(isNatIList) 2.56/1.23 uTake1(tt) -> nil 2.56/1.23 take(s(M), cons(N)) -> uTake2(and(isNat, and(isNat, isNatIList))) 2.56/1.23 length(cons(N)) -> uLength(and(isNat, isNatList)) 2.56/1.23 2.56/1.23 2.56/1.23 2.56/1.23 Outermost Strategy. 2.56/1.23 2.56/1.23 ---------------------------------------- 2.56/1.23 2.56/1.23 (1) OutermostNonTerminationProof (COMPLETE) 2.56/1.23 Term rewrite system R: 2.56/1.23 The TRS R consists of the following rules: 2.56/1.23 2.56/1.23 uTake2(tt) -> cons(N) 2.56/1.23 uLength(tt) -> s(length(L)) 2.56/1.23 and(tt, T) -> T 2.56/1.23 isNatIList -> isNatList 2.56/1.23 isNat -> tt 2.56/1.23 isNat -> isNat 2.56/1.23 isNat -> isNatList 2.56/1.23 isNatIList -> tt 2.56/1.23 isNatIList -> and(isNat, isNatIList) 2.56/1.23 isNatList -> tt 2.56/1.23 isNatList -> and(isNat, isNatList) 2.56/1.23 isNatList -> and(isNat, isNatIList) 2.56/1.23 zeros -> cons(0) 2.56/1.23 take(0, IL) -> uTake1(isNatIList) 2.56/1.23 uTake1(tt) -> nil 2.56/1.23 take(s(M), cons(N)) -> uTake2(and(isNat, and(isNat, isNatIList))) 2.56/1.23 length(cons(N)) -> uLength(and(isNat, isNatList)) 2.56/1.23 2.56/1.23 2.56/1.23 2.56/1.23 Outermost Strategy. 2.56/1.23 2.56/1.23 ---------- Loop: ---------- 2.56/1.23 2.56/1.23 uTake2(tt) -> cons(uTake2(tt)) with rule uTake2(tt) -> cons(N) at position [] and matcher [N / uTake2(tt)] 2.56/1.23 2.56/1.23 Now an instance of the first term with Matcher [ ] occurs in the last term at position [0]. 2.56/1.23 2.56/1.23 Context: cons([]) 2.56/1.23 2.56/1.23 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.56/1.23 ---------------------------------------- 2.56/1.23 2.56/1.23 (2) 2.56/1.23 NO 2.59/1.26 EOF