2.55/1.25 NO 2.55/1.25 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 2.55/1.25 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.55/1.25 2.55/1.25 2.55/1.25 Outermost Termination of the given OTRS could be disproven: 2.55/1.25 2.55/1.25 (0) OTRS 2.55/1.25 (1) OutermostNonTerminationProof [COMPLETE, 0 ms] 2.55/1.25 (2) NO 2.55/1.25 2.55/1.25 2.55/1.25 ---------------------------------------- 2.55/1.25 2.55/1.25 (0) 2.55/1.25 Obligation: 2.55/1.25 Term rewrite system R: 2.55/1.25 The TRS R consists of the following rules: 2.55/1.25 2.55/1.25 eq(0, 0) -> true 2.55/1.25 eq(s(X), s(Y)) -> eq(X, Y) 2.55/1.25 eq(X, Y) -> false 2.55/1.25 inf(X) -> cons(X, inf(s(X))) 2.55/1.25 take(0, X) -> nil 2.55/1.25 take(s(X), cons(Y, L)) -> cons(Y, take(X, L)) 2.55/1.25 length(nil) -> 0 2.55/1.25 length(cons(X, L)) -> s(length(L)) 2.55/1.25 2.55/1.25 2.55/1.25 2.55/1.25 Outermost Strategy. 2.55/1.25 2.55/1.25 ---------------------------------------- 2.55/1.25 2.55/1.25 (1) OutermostNonTerminationProof (COMPLETE) 2.55/1.25 Term rewrite system R: 2.55/1.25 The TRS R consists of the following rules: 2.55/1.25 2.55/1.25 eq(0, 0) -> true 2.55/1.25 eq(s(X), s(Y)) -> eq(X, Y) 2.55/1.25 eq(X, Y) -> false 2.55/1.25 inf(X) -> cons(X, inf(s(X))) 2.55/1.25 take(0, X) -> nil 2.55/1.25 take(s(X), cons(Y, L)) -> cons(Y, take(X, L)) 2.55/1.25 length(nil) -> 0 2.55/1.25 length(cons(X, L)) -> s(length(L)) 2.55/1.25 2.55/1.25 2.55/1.25 2.55/1.25 Outermost Strategy. 2.55/1.25 2.55/1.25 ---------- Loop: ---------- 2.55/1.25 2.55/1.25 inf(X) -> cons(X, inf(s(X))) with rule inf(X') -> cons(X', inf(s(X'))) at position [] and matcher [X' / X] 2.55/1.25 2.55/1.25 Now an instance of the first term with Matcher [X / s(X)] occurs in the last term at position [1]. 2.55/1.25 2.55/1.25 Context: cons(X, []) 2.55/1.25 2.55/1.25 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.55/1.25 ---------------------------------------- 2.55/1.25 2.55/1.25 (2) 2.55/1.25 NO 2.68/1.27 EOF