2.48/1.31 NO 2.48/1.32 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 2.48/1.32 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.48/1.32 2.48/1.32 2.48/1.32 Outermost Termination of the given OTRS could be disproven: 2.48/1.32 2.48/1.32 (0) OTRS 2.48/1.32 (1) OutermostNonTerminationProof [COMPLETE, 0 ms] 2.48/1.32 (2) NO 2.48/1.32 2.48/1.32 2.48/1.32 ---------------------------------------- 2.48/1.32 2.48/1.32 (0) 2.48/1.32 Obligation: 2.48/1.32 Term rewrite system R: 2.48/1.32 The TRS R consists of the following rules: 2.48/1.32 2.48/1.32 sel(s(X), cons(Y, Z)) -> sel(X, Z) 2.48/1.32 sel(0, cons(X, Z)) -> X 2.48/1.32 first(0, Z) -> nil 2.48/1.32 first(s(X), cons(Y, Z)) -> cons(Y, first(X, Z)) 2.48/1.32 from(X) -> cons(X, from(s(X))) 2.48/1.32 sel1(s(X), cons(Y, Z)) -> sel1(X, Z) 2.48/1.32 sel1(0, cons(X, Z)) -> quote(X) 2.48/1.32 first1(0, Z) -> nil1 2.48/1.32 first1(s(X), cons(Y, Z)) -> cons1(quote(Y), first1(X, Z)) 2.48/1.32 quote(0) -> 01 2.48/1.32 quote1(cons(X, Z)) -> cons1(quote(X), quote1(Z)) 2.48/1.32 quote1(nil) -> nil1 2.48/1.32 quote(s(X)) -> s1(quote(X)) 2.48/1.32 quote(sel(X, Z)) -> sel1(X, Z) 2.48/1.32 quote1(first(X, Z)) -> first1(X, Z) 2.48/1.32 unquote(01) -> 0 2.48/1.32 unquote(s1(X)) -> s(unquote(X)) 2.48/1.32 unquote1(nil1) -> nil 2.48/1.32 unquote1(cons1(X, Z)) -> fcons(unquote(X), unquote1(Z)) 2.48/1.32 fcons(X, Z) -> cons(X, Z) 2.48/1.32 2.48/1.32 2.48/1.32 2.48/1.32 Outermost Strategy. 2.48/1.32 2.48/1.32 ---------------------------------------- 2.48/1.32 2.48/1.32 (1) OutermostNonTerminationProof (COMPLETE) 2.48/1.32 Term rewrite system R: 2.48/1.32 The TRS R consists of the following rules: 2.48/1.32 2.48/1.32 sel(s(X), cons(Y, Z)) -> sel(X, Z) 2.48/1.32 sel(0, cons(X, Z)) -> X 2.48/1.32 first(0, Z) -> nil 2.48/1.32 first(s(X), cons(Y, Z)) -> cons(Y, first(X, Z)) 2.48/1.32 from(X) -> cons(X, from(s(X))) 2.48/1.32 sel1(s(X), cons(Y, Z)) -> sel1(X, Z) 2.48/1.32 sel1(0, cons(X, Z)) -> quote(X) 2.48/1.32 first1(0, Z) -> nil1 2.48/1.32 first1(s(X), cons(Y, Z)) -> cons1(quote(Y), first1(X, Z)) 2.48/1.32 quote(0) -> 01 2.48/1.32 quote1(cons(X, Z)) -> cons1(quote(X), quote1(Z)) 2.48/1.32 quote1(nil) -> nil1 2.48/1.32 quote(s(X)) -> s1(quote(X)) 2.48/1.32 quote(sel(X, Z)) -> sel1(X, Z) 2.48/1.32 quote1(first(X, Z)) -> first1(X, Z) 2.48/1.32 unquote(01) -> 0 2.48/1.32 unquote(s1(X)) -> s(unquote(X)) 2.48/1.32 unquote1(nil1) -> nil 2.48/1.32 unquote1(cons1(X, Z)) -> fcons(unquote(X), unquote1(Z)) 2.48/1.32 fcons(X, Z) -> cons(X, Z) 2.48/1.32 2.48/1.32 2.48/1.32 2.48/1.32 Outermost Strategy. 2.48/1.32 2.48/1.32 ---------- Loop: ---------- 2.48/1.32 2.48/1.32 from(X) -> cons(X, from(s(X))) with rule from(X') -> cons(X', from(s(X'))) at position [] and matcher [X' / X] 2.48/1.32 2.48/1.32 Now an instance of the first term with Matcher [X / s(X)] occurs in the last term at position [1]. 2.48/1.32 2.48/1.32 Context: cons(X, []) 2.48/1.32 2.48/1.32 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.48/1.32 ---------------------------------------- 2.48/1.32 2.48/1.32 (2) 2.48/1.32 NO 2.48/1.33 EOF