2.66/1.37 NO 2.66/1.37 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 2.66/1.37 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.66/1.37 2.66/1.37 2.66/1.37 Outermost Termination of the given OTRS could be disproven: 2.66/1.37 2.66/1.37 (0) OTRS 2.66/1.37 (1) OutermostNonTerminationProof [COMPLETE, 42 ms] 2.66/1.37 (2) NO 2.66/1.37 2.66/1.37 2.66/1.37 ---------------------------------------- 2.66/1.37 2.66/1.37 (0) 2.66/1.37 Obligation: 2.66/1.37 Term rewrite system R: 2.66/1.37 The TRS R consists of the following rules: 2.66/1.37 2.66/1.37 p(0) -> 0 2.66/1.37 p(s(X)) -> X 2.66/1.37 leq(0, Y) -> true 2.66/1.37 leq(s(X), 0) -> false 2.66/1.37 leq(s(X), s(Y)) -> leq(X, Y) 2.66/1.37 if(true, X, Y) -> activate(X) 2.66/1.37 if(false, X, Y) -> activate(Y) 2.66/1.37 diff(X, Y) -> if(leq(X, Y), n__0, n__s(diff(p(X), Y))) 2.66/1.37 0 -> n__0 2.66/1.37 s(X) -> n__s(X) 2.66/1.37 activate(n__0) -> 0 2.66/1.37 activate(n__s(X)) -> s(X) 2.66/1.37 activate(X) -> X 2.66/1.37 2.66/1.37 2.66/1.37 2.66/1.37 Outermost Strategy. 2.66/1.37 2.66/1.37 ---------------------------------------- 2.66/1.37 2.66/1.37 (1) OutermostNonTerminationProof (COMPLETE) 2.66/1.37 Term rewrite system R: 2.66/1.37 The TRS R consists of the following rules: 2.66/1.37 2.66/1.37 p(0) -> 0 2.66/1.37 p(s(X)) -> X 2.66/1.37 leq(0, Y) -> true 2.66/1.37 leq(s(X), 0) -> false 2.66/1.37 leq(s(X), s(Y)) -> leq(X, Y) 2.66/1.37 if(true, X, Y) -> activate(X) 2.66/1.37 if(false, X, Y) -> activate(Y) 2.66/1.37 diff(X, Y) -> if(leq(X, Y), n__0, n__s(diff(p(X), Y))) 2.66/1.37 0 -> n__0 2.66/1.37 s(X) -> n__s(X) 2.66/1.37 activate(n__0) -> 0 2.66/1.37 activate(n__s(X)) -> s(X) 2.66/1.37 activate(X) -> X 2.66/1.37 2.66/1.37 2.66/1.37 2.66/1.37 Outermost Strategy. 2.66/1.37 2.66/1.37 ---------- Loop: ---------- 2.66/1.37 2.66/1.37 diff(X, Y) -> if(leq(X, Y), n__0, n__s(diff(p(X), Y))) with rule diff(X', Y') -> if(leq(X', Y'), n__0, n__s(diff(p(X'), Y'))) at position [] and matcher [X' / X, Y' / Y] 2.66/1.37 2.66/1.37 Now an instance of the first term with Matcher [X / p(X)] occurs in the last term at position [2,0]. 2.66/1.37 2.66/1.37 Context: if(leq(X, Y), n__0, n__s([])) 2.66/1.37 2.66/1.37 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.66/1.37 ---------------------------------------- 2.66/1.37 2.66/1.37 (2) 2.66/1.37 NO 2.88/1.41 EOF