3.98/1.60 NO 3.98/1.61 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 3.98/1.61 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 3.98/1.61 3.98/1.61 3.98/1.61 Outermost Termination of the given OTRS could be disproven: 3.98/1.61 3.98/1.61 (0) OTRS 3.98/1.61 (1) OutermostNonTerminationProof [COMPLETE, 208 ms] 3.98/1.61 (2) NO 3.98/1.61 3.98/1.61 3.98/1.61 ---------------------------------------- 3.98/1.61 3.98/1.61 (0) 3.98/1.61 Obligation: 3.98/1.61 Term rewrite system R: 3.98/1.61 The TRS R consists of the following rules: 3.98/1.61 3.98/1.61 zeros -> cons(0, n__zeros) 3.98/1.61 U11(tt, L) -> U12(tt, activate(L)) 3.98/1.61 U12(tt, L) -> s(length(activate(L))) 3.98/1.61 length(nil) -> 0 3.98/1.61 length(cons(N, L)) -> U11(tt, activate(L)) 3.98/1.61 zeros -> n__zeros 3.98/1.61 activate(n__zeros) -> zeros 3.98/1.61 activate(X) -> X 3.98/1.61 3.98/1.61 3.98/1.61 3.98/1.61 Outermost Strategy. 3.98/1.61 3.98/1.61 ---------------------------------------- 3.98/1.61 3.98/1.61 (1) OutermostNonTerminationProof (COMPLETE) 3.98/1.61 Term rewrite system R: 3.98/1.61 The TRS R consists of the following rules: 3.98/1.61 3.98/1.61 zeros -> cons(0, n__zeros) 3.98/1.61 U11(tt, L) -> U12(tt, activate(L)) 3.98/1.61 U12(tt, L) -> s(length(activate(L))) 3.98/1.61 length(nil) -> 0 3.98/1.61 length(cons(N, L)) -> U11(tt, activate(L)) 3.98/1.61 zeros -> n__zeros 3.98/1.61 activate(n__zeros) -> zeros 3.98/1.61 activate(X) -> X 3.98/1.61 3.98/1.61 3.98/1.61 3.98/1.61 Outermost Strategy. 3.98/1.61 3.98/1.61 ---------- Loop: ---------- 3.98/1.61 3.98/1.61 U12(tt, activate(activate(n__zeros))) -> s(length(activate(activate(activate(n__zeros))))) with rule U12(tt, L) -> s(length(activate(L))) at position [] and matcher [L / activate(activate(n__zeros))] 3.98/1.61 3.98/1.61 s(length(activate(activate(activate(n__zeros))))) -> s(length(activate(activate(n__zeros)))) with rule activate(X) -> X at position [0,0] and matcher [X / activate(activate(n__zeros))] 3.98/1.61 3.98/1.61 s(length(activate(activate(n__zeros)))) -> s(length(activate(n__zeros))) with rule activate(X) -> X at position [0,0] and matcher [X / activate(n__zeros)] 3.98/1.61 3.98/1.61 s(length(activate(n__zeros))) -> s(length(zeros)) with rule activate(n__zeros) -> zeros at position [0,0] and matcher [ ] 3.98/1.61 3.98/1.61 s(length(zeros)) -> s(length(cons(0, n__zeros))) with rule zeros -> cons(0, n__zeros) at position [0,0] and matcher [ ] 3.98/1.61 3.98/1.61 s(length(cons(0, n__zeros))) -> s(U11(tt, activate(n__zeros))) with rule length(cons(N, L)) -> U11(tt, activate(L)) at position [0] and matcher [N / 0, L / n__zeros] 3.98/1.61 3.98/1.61 s(U11(tt, activate(n__zeros))) -> s(U12(tt, activate(activate(n__zeros)))) with rule U11(tt, L) -> U12(tt, activate(L)) at position [0] and matcher [L / activate(n__zeros)] 3.98/1.61 3.98/1.61 Now an instance of the first term with Matcher [ ] occurs in the last term at position [0]. 3.98/1.61 3.98/1.61 Context: s([]) 3.98/1.61 3.98/1.61 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 3.98/1.61 ---------------------------------------- 3.98/1.61 3.98/1.61 (2) 3.98/1.61 NO 4.23/1.68 EOF