2.46/1.33 NO 2.46/1.34 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 2.46/1.34 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.46/1.34 2.46/1.34 2.46/1.34 Outermost Termination of the given OTRS could be disproven: 2.46/1.34 2.46/1.34 (0) OTRS 2.46/1.34 (1) OutermostNonTerminationProof [COMPLETE, 0 ms] 2.46/1.34 (2) NO 2.46/1.34 2.46/1.34 2.46/1.34 ---------------------------------------- 2.46/1.34 2.46/1.34 (0) 2.46/1.34 Obligation: 2.46/1.34 Term rewrite system R: 2.46/1.34 The TRS R consists of the following rules: 2.46/1.34 2.46/1.34 U12(tt) -> s(length(L)) 2.46/1.34 U23(tt) -> cons(N) 2.46/1.34 zeros -> cons(0) 2.46/1.34 U11(tt) -> U12(tt) 2.46/1.34 U21(tt) -> U22(tt) 2.46/1.34 U22(tt) -> U23(tt) 2.46/1.34 length(nil) -> 0 2.46/1.34 length(cons(N)) -> U11(tt) 2.46/1.34 take(0, IL) -> nil 2.46/1.34 take(s(M), cons(N)) -> U21(tt) 2.46/1.34 2.46/1.34 2.46/1.34 2.46/1.34 Outermost Strategy. 2.46/1.34 2.46/1.34 ---------------------------------------- 2.46/1.34 2.46/1.34 (1) OutermostNonTerminationProof (COMPLETE) 2.46/1.34 Term rewrite system R: 2.46/1.34 The TRS R consists of the following rules: 2.46/1.34 2.46/1.34 U12(tt) -> s(length(L)) 2.46/1.34 U23(tt) -> cons(N) 2.46/1.34 zeros -> cons(0) 2.46/1.34 U11(tt) -> U12(tt) 2.46/1.34 U21(tt) -> U22(tt) 2.46/1.34 U22(tt) -> U23(tt) 2.46/1.34 length(nil) -> 0 2.46/1.34 length(cons(N)) -> U11(tt) 2.46/1.34 take(0, IL) -> nil 2.46/1.34 take(s(M), cons(N)) -> U21(tt) 2.46/1.34 2.46/1.34 2.46/1.34 2.46/1.34 Outermost Strategy. 2.46/1.34 2.46/1.34 ---------- Loop: ---------- 2.46/1.34 2.46/1.34 U12(tt) -> s(length(U12(tt))) with rule U12(tt) -> s(length(L)) at position [] and matcher [L / U12(tt)] 2.46/1.34 2.46/1.34 Now an instance of the first term with Matcher [ ] occurs in the last term at position [0,0]. 2.46/1.34 2.46/1.34 Context: s(length([])) 2.46/1.34 2.46/1.34 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.46/1.34 ---------------------------------------- 2.46/1.34 2.46/1.34 (2) 2.46/1.34 NO 2.46/1.38 EOF