23.28/6.95 YES 23.28/6.96 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 23.28/6.96 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 23.28/6.96 23.28/6.96 23.28/6.96 Termination w.r.t. Q of the given QTRS could be proven: 23.28/6.96 23.28/6.96 (0) QTRS 23.28/6.96 (1) DependencyPairsProof [EQUIVALENT, 4 ms] 23.28/6.96 (2) QDP 23.28/6.96 (3) QDPOrderProof [EQUIVALENT, 108 ms] 23.28/6.96 (4) QDP 23.28/6.96 (5) PisEmptyProof [EQUIVALENT, 0 ms] 23.28/6.96 (6) YES 23.28/6.96 23.28/6.96 23.28/6.96 ---------------------------------------- 23.28/6.96 23.28/6.96 (0) 23.28/6.96 Obligation: 23.28/6.96 Q restricted rewrite system: 23.28/6.96 The TRS R consists of the following rules: 23.28/6.96 23.28/6.96 a(x1) -> b(c(x1)) 23.28/6.96 a(b(x1)) -> x1 23.28/6.96 a(b(b(x1))) -> b(b(a(a(x1)))) 23.28/6.96 23.28/6.96 Q is empty. 23.28/6.96 23.28/6.96 ---------------------------------------- 23.28/6.96 23.28/6.96 (1) DependencyPairsProof (EQUIVALENT) 23.28/6.96 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 23.28/6.96 ---------------------------------------- 23.28/6.96 23.28/6.96 (2) 23.28/6.96 Obligation: 23.28/6.96 Q DP problem: 23.28/6.96 The TRS P consists of the following rules: 23.28/6.96 23.28/6.96 A(b(b(x1))) -> A(a(x1)) 23.28/6.96 A(b(b(x1))) -> A(x1) 23.28/6.96 23.28/6.96 The TRS R consists of the following rules: 23.28/6.96 23.28/6.96 a(x1) -> b(c(x1)) 23.28/6.96 a(b(x1)) -> x1 23.28/6.96 a(b(b(x1))) -> b(b(a(a(x1)))) 23.28/6.96 23.28/6.96 Q is empty. 23.28/6.96 We have to consider all minimal (P,Q,R)-chains. 23.28/6.96 ---------------------------------------- 23.28/6.96 23.28/6.96 (3) QDPOrderProof (EQUIVALENT) 23.28/6.96 We use the reduction pair processor [LPAR04,JAR06]. 23.28/6.96 23.28/6.96 23.28/6.96 The following pairs can be oriented strictly and are deleted. 23.28/6.96 23.28/6.96 A(b(b(x1))) -> A(a(x1)) 23.28/6.96 A(b(b(x1))) -> A(x1) 23.28/6.96 The remaining pairs can at least be oriented weakly. 23.28/6.96 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 23.28/6.96 23.28/6.96 <<< 23.28/6.96 POL(A(x_1)) = [[-I]] + [[0A, -I, 0A]] * x_1 23.28/6.96 >>> 23.28/6.96 23.28/6.96 <<< 23.28/6.96 POL(b(x_1)) = [[-I], [0A], [-I]] + [[0A, 0A, 1A], [-I, -I, 0A], [0A, -I, -I]] * x_1 23.28/6.96 >>> 23.28/6.96 23.28/6.96 <<< 23.28/6.96 POL(a(x_1)) = [[-I], [0A], [-I]] + [[0A, -I, 0A], [1A, -I, 0A], [0A, -I, -I]] * x_1 23.28/6.96 >>> 23.28/6.96 23.28/6.96 <<< 23.28/6.96 POL(c(x_1)) = [[-I], [-I], [-I]] + [[0A, -I, -I], [0A, -I, -I], [-I, -I, -I]] * x_1 23.28/6.96 >>> 23.28/6.96 23.28/6.96 23.28/6.96 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 23.28/6.96 23.28/6.96 a(x1) -> b(c(x1)) 23.28/6.96 a(b(x1)) -> x1 23.28/6.96 a(b(b(x1))) -> b(b(a(a(x1)))) 23.28/6.96 23.28/6.96 23.28/6.96 ---------------------------------------- 23.28/6.96 23.28/6.96 (4) 23.28/6.96 Obligation: 23.28/6.96 Q DP problem: 23.28/6.96 P is empty. 23.28/6.96 The TRS R consists of the following rules: 23.28/6.96 23.28/6.96 a(x1) -> b(c(x1)) 23.28/6.96 a(b(x1)) -> x1 23.28/6.96 a(b(b(x1))) -> b(b(a(a(x1)))) 23.28/6.96 23.28/6.96 Q is empty. 23.28/6.96 We have to consider all minimal (P,Q,R)-chains. 23.28/6.96 ---------------------------------------- 23.28/6.96 23.28/6.96 (5) PisEmptyProof (EQUIVALENT) 23.28/6.96 The TRS P is empty. Hence, there is no (P,Q,R) chain. 23.28/6.96 ---------------------------------------- 23.28/6.96 23.28/6.96 (6) 23.28/6.96 YES 23.62/7.04 EOF