36.71/10.18 YES 36.71/10.19 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 36.71/10.19 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 36.71/10.19 36.71/10.19 36.71/10.19 Termination w.r.t. Q of the given QTRS could be proven: 36.71/10.19 36.71/10.19 (0) QTRS 36.71/10.19 (1) DependencyPairsProof [EQUIVALENT, 9 ms] 36.71/10.19 (2) QDP 36.71/10.19 (3) QDPOrderProof [EQUIVALENT, 217 ms] 36.71/10.19 (4) QDP 36.71/10.19 (5) QDPOrderProof [EQUIVALENT, 27 ms] 36.71/10.19 (6) QDP 36.71/10.19 (7) DependencyGraphProof [EQUIVALENT, 0 ms] 36.71/10.19 (8) QDP 36.71/10.19 (9) QDPOrderProof [EQUIVALENT, 14 ms] 36.71/10.19 (10) QDP 36.71/10.19 (11) PisEmptyProof [EQUIVALENT, 0 ms] 36.71/10.19 (12) YES 36.71/10.19 36.71/10.19 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (0) 36.71/10.19 Obligation: 36.71/10.19 Q restricted rewrite system: 36.71/10.19 The TRS R consists of the following rules: 36.71/10.19 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 b(b(b(x1))) -> b(a(a(a(x1)))) 36.71/10.19 36.71/10.19 Q is empty. 36.71/10.19 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (1) DependencyPairsProof (EQUIVALENT) 36.71/10.19 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (2) 36.71/10.19 Obligation: 36.71/10.19 Q DP problem: 36.71/10.19 The TRS P consists of the following rules: 36.71/10.19 36.71/10.19 A(a(b(a(x1)))) -> A(b(b(b(x1)))) 36.71/10.19 A(a(b(a(x1)))) -> B(b(b(x1))) 36.71/10.19 A(a(b(a(x1)))) -> B(b(x1)) 36.71/10.19 A(a(b(a(x1)))) -> B(x1) 36.71/10.19 B(b(b(x1))) -> B(a(a(a(x1)))) 36.71/10.19 B(b(b(x1))) -> A(a(a(x1))) 36.71/10.19 B(b(b(x1))) -> A(a(x1)) 36.71/10.19 B(b(b(x1))) -> A(x1) 36.71/10.19 36.71/10.19 The TRS R consists of the following rules: 36.71/10.19 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 b(b(b(x1))) -> b(a(a(a(x1)))) 36.71/10.19 36.71/10.19 Q is empty. 36.71/10.19 We have to consider all minimal (P,Q,R)-chains. 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (3) QDPOrderProof (EQUIVALENT) 36.71/10.19 We use the reduction pair processor [LPAR04,JAR06]. 36.71/10.19 36.71/10.19 36.71/10.19 The following pairs can be oriented strictly and are deleted. 36.71/10.19 36.71/10.19 A(a(b(a(x1)))) -> A(b(b(b(x1)))) 36.71/10.19 The remaining pairs can at least be oriented weakly. 36.71/10.19 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 36.71/10.19 36.71/10.19 <<< 36.71/10.19 POL(A(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 36.71/10.19 >>> 36.71/10.19 36.71/10.19 <<< 36.71/10.19 POL(a(x_1)) = [[-I], [-I], [0A]] + [[0A, 0A, 0A], [0A, -I, -I], [0A, 0A, 0A]] * x_1 36.71/10.19 >>> 36.71/10.19 36.71/10.19 <<< 36.71/10.19 POL(b(x_1)) = [[-I], [1A], [0A]] + [[0A, 0A, -I], [0A, 0A, 0A], [-I, -I, -I]] * x_1 36.71/10.19 >>> 36.71/10.19 36.71/10.19 <<< 36.71/10.19 POL(B(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 36.71/10.19 >>> 36.71/10.19 36.71/10.19 36.71/10.19 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 36.71/10.19 36.71/10.19 b(b(b(x1))) -> b(a(a(a(x1)))) 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 36.71/10.19 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (4) 36.71/10.19 Obligation: 36.71/10.19 Q DP problem: 36.71/10.19 The TRS P consists of the following rules: 36.71/10.19 36.71/10.19 A(a(b(a(x1)))) -> B(b(b(x1))) 36.71/10.19 A(a(b(a(x1)))) -> B(b(x1)) 36.71/10.19 A(a(b(a(x1)))) -> B(x1) 36.71/10.19 B(b(b(x1))) -> B(a(a(a(x1)))) 36.71/10.19 B(b(b(x1))) -> A(a(a(x1))) 36.71/10.19 B(b(b(x1))) -> A(a(x1)) 36.71/10.19 B(b(b(x1))) -> A(x1) 36.71/10.19 36.71/10.19 The TRS R consists of the following rules: 36.71/10.19 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 b(b(b(x1))) -> b(a(a(a(x1)))) 36.71/10.19 36.71/10.19 Q is empty. 36.71/10.19 We have to consider all minimal (P,Q,R)-chains. 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (5) QDPOrderProof (EQUIVALENT) 36.71/10.19 We use the reduction pair processor [LPAR04,JAR06]. 36.71/10.19 36.71/10.19 36.71/10.19 The following pairs can be oriented strictly and are deleted. 36.71/10.19 36.71/10.19 A(a(b(a(x1)))) -> B(b(b(x1))) 36.71/10.19 A(a(b(a(x1)))) -> B(b(x1)) 36.71/10.19 A(a(b(a(x1)))) -> B(x1) 36.71/10.19 The remaining pairs can at least be oriented weakly. 36.71/10.19 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 36.71/10.19 36.71/10.19 <<< 36.71/10.19 POL(A(x_1)) = [[0A]] + [[0A, -I, 0A]] * x_1 36.71/10.19 >>> 36.71/10.19 36.71/10.19 <<< 36.71/10.19 POL(a(x_1)) = [[0A], [0A], [0A]] + [[-I, 0A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 36.71/10.19 >>> 36.71/10.19 36.71/10.19 <<< 36.71/10.19 POL(b(x_1)) = [[0A], [0A], [0A]] + [[0A, 1A, 0A], [-I, 0A, 0A], [0A, 0A, 0A]] * x_1 36.71/10.19 >>> 36.71/10.19 36.71/10.19 <<< 36.71/10.19 POL(B(x_1)) = [[0A]] + [[-I, 0A, -I]] * x_1 36.71/10.19 >>> 36.71/10.19 36.71/10.19 36.71/10.19 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 36.71/10.19 36.71/10.19 b(b(b(x1))) -> b(a(a(a(x1)))) 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 36.71/10.19 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (6) 36.71/10.19 Obligation: 36.71/10.19 Q DP problem: 36.71/10.19 The TRS P consists of the following rules: 36.71/10.19 36.71/10.19 B(b(b(x1))) -> B(a(a(a(x1)))) 36.71/10.19 B(b(b(x1))) -> A(a(a(x1))) 36.71/10.19 B(b(b(x1))) -> A(a(x1)) 36.71/10.19 B(b(b(x1))) -> A(x1) 36.71/10.19 36.71/10.19 The TRS R consists of the following rules: 36.71/10.19 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 b(b(b(x1))) -> b(a(a(a(x1)))) 36.71/10.19 36.71/10.19 Q is empty. 36.71/10.19 We have to consider all minimal (P,Q,R)-chains. 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (7) DependencyGraphProof (EQUIVALENT) 36.71/10.19 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 3 less nodes. 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (8) 36.71/10.19 Obligation: 36.71/10.19 Q DP problem: 36.71/10.19 The TRS P consists of the following rules: 36.71/10.19 36.71/10.19 B(b(b(x1))) -> B(a(a(a(x1)))) 36.71/10.19 36.71/10.19 The TRS R consists of the following rules: 36.71/10.19 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 b(b(b(x1))) -> b(a(a(a(x1)))) 36.71/10.19 36.71/10.19 Q is empty. 36.71/10.19 We have to consider all minimal (P,Q,R)-chains. 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (9) QDPOrderProof (EQUIVALENT) 36.71/10.19 We use the reduction pair processor [LPAR04,JAR06]. 36.71/10.19 36.71/10.19 36.71/10.19 The following pairs can be oriented strictly and are deleted. 36.71/10.19 36.71/10.19 B(b(b(x1))) -> B(a(a(a(x1)))) 36.71/10.19 The remaining pairs can at least be oriented weakly. 36.71/10.19 Used ordering: Polynomial Order [NEGPOLO,POLO] with Interpretation: 36.71/10.19 36.71/10.19 POL( B_1(x_1) ) = x_1 + 2 36.71/10.19 POL( a_1(x_1) ) = 2 36.71/10.19 POL( b_1(x_1) ) = x_1 + 2 36.71/10.19 36.71/10.19 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 36.71/10.19 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 36.71/10.19 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (10) 36.71/10.19 Obligation: 36.71/10.19 Q DP problem: 36.71/10.19 P is empty. 36.71/10.19 The TRS R consists of the following rules: 36.71/10.19 36.71/10.19 a(a(b(a(x1)))) -> a(b(b(b(x1)))) 36.71/10.19 b(b(b(x1))) -> b(a(a(a(x1)))) 36.71/10.19 36.71/10.19 Q is empty. 36.71/10.19 We have to consider all minimal (P,Q,R)-chains. 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (11) PisEmptyProof (EQUIVALENT) 36.71/10.19 The TRS P is empty. Hence, there is no (P,Q,R) chain. 36.71/10.19 ---------------------------------------- 36.71/10.19 36.71/10.19 (12) 36.71/10.19 YES 37.16/10.34 EOF