3.39/1.70 YES 3.65/1.71 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 3.65/1.71 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 3.65/1.71 3.65/1.71 3.65/1.71 Quasi decreasingness of the given CTRS could be proven: 3.65/1.71 3.65/1.71 (0) CTRS 3.65/1.71 (1) CTRSToQTRSProof [SOUND, 0 ms] 3.65/1.71 (2) QTRS 3.65/1.71 (3) QTRSRRRProof [EQUIVALENT, 56 ms] 3.65/1.71 (4) QTRS 3.65/1.71 (5) QTRSRRRProof [EQUIVALENT, 0 ms] 3.65/1.71 (6) QTRS 3.65/1.71 (7) RisEmptyProof [EQUIVALENT, 0 ms] 3.65/1.71 (8) YES 3.65/1.71 3.65/1.71 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (0) 3.65/1.71 Obligation: 3.65/1.71 Conditional term rewrite system: 3.65/1.71 The TRS R is empty. 3.65/1.71 The conditional TRS C consists of the following conditional rules: 3.65/1.71 3.65/1.71 f(x, x') -> g(y, y) <= x -> y, x' -> y 3.65/1.71 h(x, x', x'') -> c <= x -> y, x' -> y, x'' -> y 3.65/1.71 3.65/1.71 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (1) CTRSToQTRSProof (SOUND) 3.65/1.71 The conditional rules have been transormed into unconditional rules according to [CTRS,AAECCNOC]. 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (2) 3.65/1.71 Obligation: 3.65/1.71 Q restricted rewrite system: 3.65/1.71 The TRS R consists of the following rules: 3.65/1.71 3.65/1.71 f(x, x') -> U1(x, x') 3.65/1.71 U1(y, x') -> U2(x', y) 3.65/1.71 U2(y, y) -> g(y, y) 3.65/1.71 h(x, x', x'') -> U3(x, x', x'') 3.65/1.71 U3(y, x', x'') -> U4(x', x'') 3.65/1.71 U4(y, x'') -> U5(x'') 3.65/1.71 U5(y) -> c 3.65/1.71 3.65/1.71 Q is empty. 3.65/1.71 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (3) QTRSRRRProof (EQUIVALENT) 3.65/1.71 Used ordering: 3.65/1.71 Polynomial interpretation [POLO]: 3.65/1.71 3.65/1.71 POL(U1(x_1, x_2)) = 1 + 2*x_1 + 2*x_2 3.65/1.71 POL(U2(x_1, x_2)) = 1 + 2*x_1 + 2*x_2 3.65/1.71 POL(U3(x_1, x_2, x_3)) = 1 + x_1 + 2*x_2 + 2*x_3 3.65/1.71 POL(U4(x_1, x_2)) = 2*x_1 + 2*x_2 3.65/1.71 POL(U5(x_1)) = 2*x_1 3.65/1.71 POL(c) = 0 3.65/1.71 POL(f(x_1, x_2)) = 1 + 2*x_1 + 2*x_2 3.65/1.71 POL(g(x_1, x_2)) = x_1 + x_2 3.65/1.71 POL(h(x_1, x_2, x_3)) = 1 + x_1 + 2*x_2 + 2*x_3 3.65/1.71 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 3.65/1.71 3.65/1.71 U2(y, y) -> g(y, y) 3.65/1.71 U3(y, x', x'') -> U4(x', x'') 3.65/1.71 3.65/1.71 3.65/1.71 3.65/1.71 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (4) 3.65/1.71 Obligation: 3.65/1.71 Q restricted rewrite system: 3.65/1.71 The TRS R consists of the following rules: 3.65/1.71 3.65/1.71 f(x, x') -> U1(x, x') 3.65/1.71 U1(y, x') -> U2(x', y) 3.65/1.71 h(x, x', x'') -> U3(x, x', x'') 3.65/1.71 U4(y, x'') -> U5(x'') 3.65/1.71 U5(y) -> c 3.65/1.71 3.65/1.71 Q is empty. 3.65/1.71 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (5) QTRSRRRProof (EQUIVALENT) 3.65/1.71 Used ordering: 3.65/1.71 Knuth-Bendix order [KBO] with precedence:f_2 > U4_2 > U5_1 > c > h_3 > U3_3 > U1_2 > U2_2 3.65/1.71 3.65/1.71 and weight map: 3.65/1.71 3.65/1.71 c=2 3.65/1.71 U5_1=1 3.65/1.71 f_2=0 3.65/1.71 U1_2=0 3.65/1.71 U2_2=0 3.65/1.71 h_3=0 3.65/1.71 U3_3=0 3.65/1.71 U4_2=0 3.65/1.71 3.65/1.71 The variable weight is 1With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 3.65/1.71 3.65/1.71 f(x, x') -> U1(x, x') 3.65/1.71 U1(y, x') -> U2(x', y) 3.65/1.71 h(x, x', x'') -> U3(x, x', x'') 3.65/1.71 U4(y, x'') -> U5(x'') 3.65/1.71 U5(y) -> c 3.65/1.71 3.65/1.71 3.65/1.71 3.65/1.71 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (6) 3.65/1.71 Obligation: 3.65/1.71 Q restricted rewrite system: 3.65/1.71 R is empty. 3.65/1.71 Q is empty. 3.65/1.71 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (7) RisEmptyProof (EQUIVALENT) 3.65/1.71 The TRS R is empty. Hence, termination is trivially proven. 3.65/1.71 ---------------------------------------- 3.65/1.71 3.65/1.71 (8) 3.65/1.71 YES 3.65/1.74 EOF