3.68/1.68 YES 3.68/1.69 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 3.68/1.69 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 3.68/1.69 3.68/1.69 3.68/1.69 Quasi decreasingness of the given CTRS could be proven: 3.68/1.69 3.68/1.69 (0) CTRS 3.68/1.69 (1) CTRSToQTRSProof [SOUND, 0 ms] 3.68/1.69 (2) QTRS 3.68/1.69 (3) QTRSRRRProof [EQUIVALENT, 24 ms] 3.68/1.69 (4) QTRS 3.68/1.69 (5) RisEmptyProof [EQUIVALENT, 0 ms] 3.68/1.69 (6) YES 3.68/1.69 3.68/1.69 3.68/1.69 ---------------------------------------- 3.68/1.69 3.68/1.69 (0) 3.68/1.69 Obligation: 3.68/1.69 Conditional term rewrite system: 3.68/1.69 The TRS R consists of the following rules: 3.68/1.69 3.68/1.69 a -> c 3.68/1.69 a -> d 3.68/1.69 b -> c 3.68/1.69 b -> d 3.68/1.69 s(k) -> t(a) 3.68/1.69 s(l) -> t(a) 3.68/1.69 g(x, x) -> h(x, x) 3.68/1.69 3.68/1.69 The conditional TRS C consists of the following conditional rules: 3.68/1.69 3.68/1.69 f(x, y) -> y <= s(x) -> t(y) 3.68/1.69 3.68/1.69 3.68/1.69 ---------------------------------------- 3.68/1.69 3.68/1.69 (1) CTRSToQTRSProof (SOUND) 3.68/1.69 The conditional rules have been transormed into unconditional rules according to [CTRS,AAECCNOC]. 3.68/1.69 ---------------------------------------- 3.68/1.69 3.68/1.69 (2) 3.68/1.69 Obligation: 3.68/1.69 Q restricted rewrite system: 3.68/1.69 The TRS R consists of the following rules: 3.68/1.69 3.68/1.69 f(x, y) -> U1(s(x), y) 3.68/1.69 U1(t(y), y) -> y 3.68/1.69 a -> c 3.68/1.69 a -> d 3.68/1.69 b -> c 3.68/1.69 b -> d 3.68/1.69 s(k) -> t(a) 3.68/1.69 s(l) -> t(a) 3.68/1.69 g(x, x) -> h(x, x) 3.68/1.69 3.68/1.69 Q is empty. 3.68/1.69 3.68/1.69 ---------------------------------------- 3.68/1.69 3.68/1.69 (3) QTRSRRRProof (EQUIVALENT) 3.68/1.69 Used ordering: 3.68/1.69 Knuth-Bendix order [KBO] with precedence:g_2 > f_2 > U1_2 > h_2 > l > k > b > a > d > c > s_1 > t_1 3.68/1.69 3.68/1.69 and weight map: 3.68/1.69 3.68/1.69 a=2 3.68/1.69 c=2 3.68/1.69 d=2 3.68/1.69 b=2 3.68/1.69 k=1 3.68/1.69 l=1 3.68/1.69 s_1=2 3.68/1.69 t_1=1 3.68/1.69 f_2=2 3.68/1.69 U1_2=0 3.68/1.69 g_2=0 3.68/1.69 h_2=0 3.68/1.69 3.68/1.69 The variable weight is 1With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 3.68/1.69 3.68/1.69 f(x, y) -> U1(s(x), y) 3.68/1.69 U1(t(y), y) -> y 3.68/1.69 a -> c 3.68/1.69 a -> d 3.68/1.69 b -> c 3.68/1.69 b -> d 3.68/1.69 s(k) -> t(a) 3.68/1.69 s(l) -> t(a) 3.68/1.69 g(x, x) -> h(x, x) 3.68/1.69 3.68/1.69 3.68/1.69 3.68/1.69 3.68/1.69 ---------------------------------------- 3.68/1.69 3.68/1.69 (4) 3.68/1.69 Obligation: 3.68/1.69 Q restricted rewrite system: 3.68/1.69 R is empty. 3.68/1.69 Q is empty. 3.68/1.69 3.68/1.69 ---------------------------------------- 3.68/1.69 3.68/1.69 (5) RisEmptyProof (EQUIVALENT) 3.68/1.69 The TRS R is empty. Hence, termination is trivially proven. 3.68/1.69 ---------------------------------------- 3.68/1.69 3.68/1.69 (6) 3.68/1.69 YES 3.84/1.72 EOF