25.63/7.41 YES 26.70/7.67 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 26.70/7.67 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 26.70/7.67 26.70/7.67 26.70/7.67 Termination w.r.t. Q of the given QTRS could be proven: 26.70/7.67 26.70/7.67 (0) QTRS 26.70/7.67 (1) DependencyPairsProof [EQUIVALENT, 27 ms] 26.70/7.67 (2) QDP 26.70/7.67 (3) QDPOrderProof [EQUIVALENT, 107 ms] 26.70/7.67 (4) QDP 26.70/7.67 (5) PisEmptyProof [EQUIVALENT, 0 ms] 26.70/7.67 (6) YES 26.70/7.67 26.70/7.67 26.70/7.67 ---------------------------------------- 26.70/7.67 26.70/7.67 (0) 26.70/7.67 Obligation: 26.70/7.67 Q restricted rewrite system: 26.70/7.67 The TRS R consists of the following rules: 26.70/7.67 26.70/7.67 a(b(x1)) -> x1 26.70/7.67 a(c(x1)) -> b(c(c(a(x1)))) 26.70/7.67 b(c(x1)) -> a(b(x1)) 26.70/7.67 26.70/7.67 Q is empty. 26.70/7.67 26.70/7.67 ---------------------------------------- 26.70/7.67 26.70/7.67 (1) DependencyPairsProof (EQUIVALENT) 26.70/7.67 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 26.70/7.67 ---------------------------------------- 26.70/7.67 26.70/7.67 (2) 26.70/7.67 Obligation: 26.70/7.67 Q DP problem: 26.70/7.67 The TRS P consists of the following rules: 26.70/7.67 26.70/7.67 A(c(x1)) -> B(c(c(a(x1)))) 26.70/7.67 A(c(x1)) -> A(x1) 26.70/7.67 B(c(x1)) -> A(b(x1)) 26.70/7.67 B(c(x1)) -> B(x1) 26.70/7.67 26.70/7.67 The TRS R consists of the following rules: 26.70/7.67 26.70/7.67 a(b(x1)) -> x1 26.70/7.67 a(c(x1)) -> b(c(c(a(x1)))) 26.70/7.67 b(c(x1)) -> a(b(x1)) 26.70/7.67 26.70/7.67 Q is empty. 26.70/7.67 We have to consider all minimal (P,Q,R)-chains. 26.70/7.67 ---------------------------------------- 26.70/7.67 26.70/7.67 (3) QDPOrderProof (EQUIVALENT) 26.70/7.67 We use the reduction pair processor [LPAR04,JAR06]. 26.70/7.67 26.70/7.67 26.70/7.67 The following pairs can be oriented strictly and are deleted. 26.70/7.67 26.70/7.67 A(c(x1)) -> B(c(c(a(x1)))) 26.70/7.67 A(c(x1)) -> A(x1) 26.70/7.67 B(c(x1)) -> A(b(x1)) 26.70/7.67 B(c(x1)) -> B(x1) 26.70/7.67 The remaining pairs can at least be oriented weakly. 26.70/7.67 Used ordering: Polynomial interpretation [POLO,RATPOLO]: 26.70/7.67 26.70/7.67 POL(A(x_1)) = [7/4] + [2]x_1 26.70/7.67 POL(B(x_1)) = [1/2]x_1 26.70/7.67 POL(a(x_1)) = [3/2] + [2]x_1 26.70/7.67 POL(b(x_1)) = [1/2]x_1 26.70/7.67 POL(c(x_1)) = [4] + [2]x_1 26.70/7.67 The value of delta used in the strict ordering is 1/4. 26.70/7.67 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 26.70/7.67 26.70/7.67 a(b(x1)) -> x1 26.70/7.67 a(c(x1)) -> b(c(c(a(x1)))) 26.70/7.67 b(c(x1)) -> a(b(x1)) 26.70/7.67 26.70/7.67 26.70/7.67 ---------------------------------------- 26.70/7.67 26.70/7.67 (4) 26.70/7.67 Obligation: 26.70/7.67 Q DP problem: 26.70/7.67 P is empty. 26.70/7.67 The TRS R consists of the following rules: 26.70/7.67 26.70/7.67 a(b(x1)) -> x1 26.70/7.67 a(c(x1)) -> b(c(c(a(x1)))) 26.70/7.67 b(c(x1)) -> a(b(x1)) 26.70/7.67 26.70/7.67 Q is empty. 26.70/7.67 We have to consider all minimal (P,Q,R)-chains. 26.70/7.67 ---------------------------------------- 26.70/7.67 26.70/7.67 (5) PisEmptyProof (EQUIVALENT) 26.70/7.67 The TRS P is empty. Hence, there is no (P,Q,R) chain. 26.70/7.67 ---------------------------------------- 26.70/7.67 26.70/7.67 (6) 26.70/7.67 YES 26.96/7.75 EOF