29.55/8.54 YES 29.55/8.58 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 29.55/8.58 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 29.55/8.58 29.55/8.58 29.55/8.58 Termination w.r.t. Q of the given QTRS could be proven: 29.55/8.58 29.55/8.58 (0) QTRS 29.55/8.58 (1) DependencyPairsProof [EQUIVALENT, 16 ms] 29.55/8.58 (2) QDP 29.55/8.58 (3) QDPOrderProof [EQUIVALENT, 120 ms] 29.55/8.58 (4) QDP 29.55/8.58 (5) QDPOrderProof [EQUIVALENT, 251 ms] 29.55/8.58 (6) QDP 29.55/8.58 (7) PisEmptyProof [EQUIVALENT, 0 ms] 29.55/8.58 (8) YES 29.55/8.58 29.55/8.58 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (0) 29.55/8.58 Obligation: 29.55/8.58 Q restricted rewrite system: 29.55/8.58 The TRS R consists of the following rules: 29.55/8.58 29.55/8.58 b(b(a(b(x1)))) -> a(b(b(b(x1)))) 29.55/8.58 a(a(a(b(x1)))) -> a(b(b(a(x1)))) 29.55/8.58 b(a(a(b(x1)))) -> a(a(a(b(x1)))) 29.55/8.58 29.55/8.58 Q is empty. 29.55/8.58 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (1) DependencyPairsProof (EQUIVALENT) 29.55/8.58 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (2) 29.55/8.58 Obligation: 29.55/8.58 Q DP problem: 29.55/8.58 The TRS P consists of the following rules: 29.55/8.58 29.55/8.58 B(b(a(b(x1)))) -> A(b(b(b(x1)))) 29.55/8.58 B(b(a(b(x1)))) -> B(b(b(x1))) 29.55/8.58 B(b(a(b(x1)))) -> B(b(x1)) 29.55/8.58 A(a(a(b(x1)))) -> A(b(b(a(x1)))) 29.55/8.58 A(a(a(b(x1)))) -> B(b(a(x1))) 29.55/8.58 A(a(a(b(x1)))) -> B(a(x1)) 29.55/8.58 A(a(a(b(x1)))) -> A(x1) 29.55/8.58 B(a(a(b(x1)))) -> A(a(a(b(x1)))) 29.55/8.58 29.55/8.58 The TRS R consists of the following rules: 29.55/8.58 29.55/8.58 b(b(a(b(x1)))) -> a(b(b(b(x1)))) 29.55/8.58 a(a(a(b(x1)))) -> a(b(b(a(x1)))) 29.55/8.58 b(a(a(b(x1)))) -> a(a(a(b(x1)))) 29.55/8.58 29.55/8.58 Q is empty. 29.55/8.58 We have to consider all minimal (P,Q,R)-chains. 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (3) QDPOrderProof (EQUIVALENT) 29.55/8.58 We use the reduction pair processor [LPAR04,JAR06]. 29.55/8.58 29.55/8.58 29.55/8.58 The following pairs can be oriented strictly and are deleted. 29.55/8.58 29.55/8.58 B(b(a(b(x1)))) -> A(b(b(b(x1)))) 29.55/8.58 B(b(a(b(x1)))) -> B(b(b(x1))) 29.55/8.58 B(b(a(b(x1)))) -> B(b(x1)) 29.55/8.58 A(a(a(b(x1)))) -> B(b(a(x1))) 29.55/8.58 A(a(a(b(x1)))) -> B(a(x1)) 29.55/8.58 A(a(a(b(x1)))) -> A(x1) 29.55/8.58 B(a(a(b(x1)))) -> A(a(a(b(x1)))) 29.55/8.58 The remaining pairs can at least be oriented weakly. 29.55/8.58 Used ordering: Polynomial interpretation [POLO]: 29.55/8.58 29.55/8.58 POL(A(x_1)) = 4 + 2*x_1 29.55/8.58 POL(B(x_1)) = 1 + 4*x_1 29.55/8.58 POL(a(x_1)) = 2 + 2*x_1 29.55/8.58 POL(b(x_1)) = 2 + 2*x_1 29.55/8.58 29.55/8.58 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 29.55/8.58 29.55/8.58 b(b(a(b(x1)))) -> a(b(b(b(x1)))) 29.55/8.58 b(a(a(b(x1)))) -> a(a(a(b(x1)))) 29.55/8.58 a(a(a(b(x1)))) -> a(b(b(a(x1)))) 29.55/8.58 29.55/8.58 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (4) 29.55/8.58 Obligation: 29.55/8.58 Q DP problem: 29.55/8.58 The TRS P consists of the following rules: 29.55/8.58 29.55/8.58 A(a(a(b(x1)))) -> A(b(b(a(x1)))) 29.55/8.58 29.55/8.58 The TRS R consists of the following rules: 29.55/8.58 29.55/8.58 b(b(a(b(x1)))) -> a(b(b(b(x1)))) 29.55/8.58 a(a(a(b(x1)))) -> a(b(b(a(x1)))) 29.55/8.58 b(a(a(b(x1)))) -> a(a(a(b(x1)))) 29.55/8.58 29.55/8.58 Q is empty. 29.55/8.58 We have to consider all minimal (P,Q,R)-chains. 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (5) QDPOrderProof (EQUIVALENT) 29.55/8.58 We use the reduction pair processor [LPAR04,JAR06]. 29.55/8.58 29.55/8.58 29.55/8.58 The following pairs can be oriented strictly and are deleted. 29.55/8.58 29.55/8.58 A(a(a(b(x1)))) -> A(b(b(a(x1)))) 29.55/8.58 The remaining pairs can at least be oriented weakly. 29.55/8.58 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 29.55/8.58 29.55/8.58 <<< 29.55/8.58 POL(A(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 29.55/8.58 >>> 29.55/8.58 29.55/8.58 <<< 29.55/8.58 POL(a(x_1)) = [[0A], [0A], [0A]] + [[0A, 0A, -I], [1A, 0A, 0A], [0A, 0A, -I]] * x_1 29.55/8.58 >>> 29.55/8.58 29.55/8.58 <<< 29.55/8.58 POL(b(x_1)) = [[0A], [0A], [-I]] + [[0A, 0A, 1A], [0A, 0A, 1A], [-I, -I, 0A]] * x_1 29.55/8.58 >>> 29.55/8.58 29.55/8.58 29.55/8.58 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 29.55/8.58 29.55/8.58 a(a(a(b(x1)))) -> a(b(b(a(x1)))) 29.55/8.58 b(b(a(b(x1)))) -> a(b(b(b(x1)))) 29.55/8.58 b(a(a(b(x1)))) -> a(a(a(b(x1)))) 29.55/8.58 29.55/8.58 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (6) 29.55/8.58 Obligation: 29.55/8.58 Q DP problem: 29.55/8.58 P is empty. 29.55/8.58 The TRS R consists of the following rules: 29.55/8.58 29.55/8.58 b(b(a(b(x1)))) -> a(b(b(b(x1)))) 29.55/8.58 a(a(a(b(x1)))) -> a(b(b(a(x1)))) 29.55/8.58 b(a(a(b(x1)))) -> a(a(a(b(x1)))) 29.55/8.58 29.55/8.58 Q is empty. 29.55/8.58 We have to consider all minimal (P,Q,R)-chains. 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (7) PisEmptyProof (EQUIVALENT) 29.55/8.58 The TRS P is empty. Hence, there is no (P,Q,R) chain. 29.55/8.58 ---------------------------------------- 29.55/8.58 29.55/8.58 (8) 29.55/8.58 YES 30.07/8.72 EOF