2.91/1.40 NO 2.91/1.41 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 2.91/1.41 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.91/1.41 2.91/1.41 2.91/1.41 Outermost Termination of the given OTRS could be disproven: 2.91/1.41 2.91/1.41 (0) OTRS 2.91/1.41 (1) OutermostNonTerminationProof [COMPLETE, 69 ms] 2.91/1.41 (2) NO 2.91/1.41 2.91/1.41 2.91/1.41 ---------------------------------------- 2.91/1.41 2.91/1.41 (0) 2.91/1.41 Obligation: 2.91/1.41 Term rewrite system R: 2.91/1.41 The TRS R consists of the following rules: 2.91/1.41 2.91/1.41 app(app(const, x), y) -> x 2.91/1.41 app(app(app(subst, f), g), x) -> app(app(f, x), app(g, x)) 2.91/1.41 app(app(fix, f), x) -> app(app(f, app(fix, f)), x) 2.91/1.41 2.91/1.41 2.91/1.41 2.91/1.41 Outermost Strategy. 2.91/1.41 2.91/1.41 ---------------------------------------- 2.91/1.41 2.91/1.41 (1) OutermostNonTerminationProof (COMPLETE) 2.91/1.41 Term rewrite system R: 2.91/1.41 The TRS R consists of the following rules: 2.91/1.41 2.91/1.41 app(app(const, x), y) -> x 2.91/1.41 app(app(app(subst, f), g), x) -> app(app(f, x), app(g, x)) 2.91/1.41 app(app(fix, f), x) -> app(app(f, app(fix, f)), x) 2.91/1.41 2.91/1.41 2.91/1.41 2.91/1.41 Outermost Strategy. 2.91/1.41 2.91/1.41 ---------- Loop: ---------- 2.91/1.41 2.91/1.41 app(app(app(fix, subst), x'), x) -> app(app(app(subst, app(fix, subst)), x'), x) with rule app(app(fix, f'), x'') -> app(app(f', app(fix, f')), x'') at position [0] and matcher [f' / subst, x'' / x'] 2.91/1.41 2.91/1.41 app(app(app(subst, app(fix, subst)), x'), x) -> app(app(app(fix, subst), x), app(x', x)) with rule app(app(app(subst, f), g), x'') -> app(app(f, x''), app(g, x'')) at position [] and matcher [f / app(fix, subst), g / x', x'' / x] 2.91/1.41 2.91/1.41 Now an instance of the first term with Matcher [x' / x, x / app(x', x)] occurs in the last term at position []. 2.91/1.41 2.91/1.41 Context: [] 2.91/1.41 2.91/1.41 We used [THIEMANN_LOOPS_UNDER_STRATEGIES] to show that this Loop is an Outermost-Loop. 2.91/1.41 ---------------------------------------- 2.91/1.41 2.91/1.41 (2) 2.91/1.41 NO 2.91/1.45 EOF