2.76/1.36 NO 2.97/1.37 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 2.97/1.37 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.97/1.37 2.97/1.37 2.97/1.37 Outermost Termination of the given OTRS could be disproven: 2.97/1.37 2.97/1.37 (0) OTRS 2.97/1.37 (1) OutermostNonTerminationProof [COMPLETE, 0 ms] 2.97/1.37 (2) NO 2.97/1.37 2.97/1.37 2.97/1.37 ---------------------------------------- 2.97/1.37 2.97/1.37 (0) 2.97/1.37 Obligation: 2.97/1.37 Term rewrite system R: 2.97/1.37 The TRS R consists of the following rules: 2.97/1.37 2.97/1.37 dbl(0) -> 0 2.97/1.37 dbl(s(X)) -> s(s(dbl(X))) 2.97/1.37 dbls(nil) -> nil 2.97/1.37 dbls(cons(X, Y)) -> cons(dbl(X), dbls(Y)) 2.97/1.37 sel(0, cons(X, Y)) -> X 2.97/1.37 sel(s(X), cons(Y, Z)) -> sel(X, Z) 2.97/1.37 indx(nil, X) -> nil 2.97/1.37 indx(cons(X, Y), Z) -> cons(sel(X, Z), indx(Y, Z)) 2.97/1.37 from(X) -> cons(X, from(s(X))) 2.97/1.37 dbl1(0) -> 01 2.97/1.37 dbl1(s(X)) -> s1(s1(dbl1(X))) 2.97/1.37 sel1(0, cons(X, Y)) -> X 2.97/1.37 sel1(s(X), cons(Y, Z)) -> sel1(X, Z) 2.97/1.37 quote(0) -> 01 2.97/1.37 quote(s(X)) -> s1(quote(X)) 2.97/1.37 quote(dbl(X)) -> dbl1(X) 2.97/1.37 quote(sel(X, Y)) -> sel1(X, Y) 2.97/1.37 2.97/1.37 2.97/1.37 2.97/1.37 Outermost Strategy. 2.97/1.37 2.97/1.37 ---------------------------------------- 2.97/1.37 2.97/1.37 (1) OutermostNonTerminationProof (COMPLETE) 2.97/1.37 Term rewrite system R: 2.97/1.37 The TRS R consists of the following rules: 2.97/1.37 2.97/1.37 dbl(0) -> 0 2.97/1.37 dbl(s(X)) -> s(s(dbl(X))) 2.97/1.37 dbls(nil) -> nil 2.97/1.37 dbls(cons(X, Y)) -> cons(dbl(X), dbls(Y)) 2.97/1.37 sel(0, cons(X, Y)) -> X 2.97/1.37 sel(s(X), cons(Y, Z)) -> sel(X, Z) 2.97/1.37 indx(nil, X) -> nil 2.97/1.37 indx(cons(X, Y), Z) -> cons(sel(X, Z), indx(Y, Z)) 2.97/1.37 from(X) -> cons(X, from(s(X))) 2.97/1.37 dbl1(0) -> 01 2.97/1.37 dbl1(s(X)) -> s1(s1(dbl1(X))) 2.97/1.37 sel1(0, cons(X, Y)) -> X 2.97/1.37 sel1(s(X), cons(Y, Z)) -> sel1(X, Z) 2.97/1.37 quote(0) -> 01 2.97/1.37 quote(s(X)) -> s1(quote(X)) 2.97/1.37 quote(dbl(X)) -> dbl1(X) 2.97/1.37 quote(sel(X, Y)) -> sel1(X, Y) 2.97/1.37 2.97/1.37 2.97/1.37 2.97/1.37 Outermost Strategy. 2.97/1.37 2.97/1.37 ---------- Loop: ---------- 2.97/1.37 2.97/1.37 from(X) -> cons(X, from(s(X))) with rule from(X') -> cons(X', from(s(X'))) at position [] and matcher [X' / X] 2.97/1.37 2.97/1.37 Now an instance of the first term with Matcher [X / s(X)] occurs in the last term at position [1]. 2.97/1.37 2.97/1.37 Context: cons(X, []) 2.97/1.37 2.97/1.37 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.97/1.37 ---------------------------------------- 2.97/1.37 2.97/1.37 (2) 2.97/1.37 NO 2.97/1.40 EOF