2.64/1.34 NO 2.64/1.35 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 2.64/1.35 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.64/1.35 2.64/1.35 2.64/1.35 Outermost Termination of the given OTRS could be disproven: 2.64/1.35 2.64/1.35 (0) OTRS 2.64/1.35 (1) OutermostNonTerminationProof [COMPLETE, 0 ms] 2.64/1.35 (2) NO 2.64/1.35 2.64/1.35 2.64/1.35 ---------------------------------------- 2.64/1.35 2.64/1.35 (0) 2.64/1.35 Obligation: 2.64/1.35 Term rewrite system R: 2.64/1.35 The TRS R consists of the following rules: 2.64/1.35 2.64/1.35 and(true, X) -> X 2.64/1.35 and(false, Y) -> false 2.64/1.35 if(true, X, Y) -> X 2.64/1.35 if(false, X, Y) -> Y 2.64/1.35 add(0, X) -> X 2.64/1.35 add(s(X), Y) -> s(add(X, Y)) 2.64/1.35 first(0, X) -> nil 2.64/1.35 first(s(X), cons(Y, Z)) -> cons(Y, first(X, Z)) 2.64/1.35 from(X) -> cons(X, from(s(X))) 2.64/1.35 2.64/1.35 2.64/1.35 2.64/1.35 Outermost Strategy. 2.64/1.35 2.64/1.35 ---------------------------------------- 2.64/1.35 2.64/1.35 (1) OutermostNonTerminationProof (COMPLETE) 2.64/1.35 Term rewrite system R: 2.64/1.35 The TRS R consists of the following rules: 2.64/1.35 2.64/1.35 and(true, X) -> X 2.64/1.35 and(false, Y) -> false 2.64/1.35 if(true, X, Y) -> X 2.64/1.35 if(false, X, Y) -> Y 2.64/1.35 add(0, X) -> X 2.64/1.35 add(s(X), Y) -> s(add(X, Y)) 2.64/1.35 first(0, X) -> nil 2.64/1.35 first(s(X), cons(Y, Z)) -> cons(Y, first(X, Z)) 2.64/1.35 from(X) -> cons(X, from(s(X))) 2.64/1.35 2.64/1.35 2.64/1.35 2.64/1.35 Outermost Strategy. 2.64/1.35 2.64/1.35 ---------- Loop: ---------- 2.64/1.35 2.64/1.35 from(X) -> cons(X, from(s(X))) with rule from(X') -> cons(X', from(s(X'))) at position [] and matcher [X' / X] 2.64/1.35 2.64/1.35 Now an instance of the first term with Matcher [X / s(X)] occurs in the last term at position [1]. 2.64/1.35 2.64/1.35 Context: cons(X, []) 2.64/1.35 2.64/1.35 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.64/1.35 ---------------------------------------- 2.64/1.35 2.64/1.35 (2) 2.64/1.35 NO 2.84/2.03 EOF