33.56/9.47 YES 33.74/9.56 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 33.74/9.56 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 33.74/9.56 33.74/9.56 33.74/9.56 Termination w.r.t. Q of the given QTRS could be proven: 33.74/9.56 33.74/9.56 (0) QTRS 33.74/9.56 (1) QTRS Reverse [EQUIVALENT, 0 ms] 33.74/9.56 (2) QTRS 33.74/9.56 (3) DependencyPairsProof [EQUIVALENT, 1 ms] 33.74/9.56 (4) QDP 33.74/9.56 (5) QDPOrderProof [EQUIVALENT, 19 ms] 33.74/9.56 (6) QDP 33.74/9.56 (7) DependencyGraphProof [EQUIVALENT, 0 ms] 33.74/9.56 (8) AND 33.74/9.56 (9) QDP 33.74/9.56 (10) QDPOrderProof [EQUIVALENT, 64 ms] 33.74/9.56 (11) QDP 33.74/9.56 (12) PisEmptyProof [EQUIVALENT, 0 ms] 33.74/9.56 (13) YES 33.74/9.56 (14) QDP 33.74/9.56 (15) QDPOrderProof [EQUIVALENT, 73 ms] 33.74/9.56 (16) QDP 33.74/9.56 (17) PisEmptyProof [EQUIVALENT, 0 ms] 33.74/9.56 (18) YES 33.74/9.56 33.74/9.56 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (0) 33.74/9.56 Obligation: 33.74/9.56 Q restricted rewrite system: 33.74/9.56 The TRS R consists of the following rules: 33.74/9.56 33.74/9.56 a(b(a(b(x1)))) -> a(a(b(b(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> b(b(b(a(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> b(a(b(a(x1)))) 33.74/9.56 33.74/9.56 Q is empty. 33.74/9.56 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (1) QTRS Reverse (EQUIVALENT) 33.74/9.56 We applied the QTRS Reverse Processor [REVERSE]. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (2) 33.74/9.56 Obligation: 33.74/9.56 Q restricted rewrite system: 33.74/9.56 The TRS R consists of the following rules: 33.74/9.56 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 33.74/9.56 Q is empty. 33.74/9.56 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (3) DependencyPairsProof (EQUIVALENT) 33.74/9.56 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (4) 33.74/9.56 Obligation: 33.74/9.56 Q DP problem: 33.74/9.56 The TRS P consists of the following rules: 33.74/9.56 33.74/9.56 B(a(b(a(x1)))) -> B(b(a(a(x1)))) 33.74/9.56 B(a(b(a(x1)))) -> B(a(a(x1))) 33.74/9.56 B(a(b(a(x1)))) -> A(a(x1)) 33.74/9.56 B(b(b(b(x1)))) -> A(b(b(b(x1)))) 33.74/9.56 A(a(a(a(x1)))) -> A(b(a(b(x1)))) 33.74/9.56 A(a(a(a(x1)))) -> B(a(b(x1))) 33.74/9.56 A(a(a(a(x1)))) -> A(b(x1)) 33.74/9.56 A(a(a(a(x1)))) -> B(x1) 33.74/9.56 33.74/9.56 The TRS R consists of the following rules: 33.74/9.56 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 33.74/9.56 Q is empty. 33.74/9.56 We have to consider all minimal (P,Q,R)-chains. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (5) QDPOrderProof (EQUIVALENT) 33.74/9.56 We use the reduction pair processor [LPAR04,JAR06]. 33.74/9.56 33.74/9.56 33.74/9.56 The following pairs can be oriented strictly and are deleted. 33.74/9.56 33.74/9.56 B(a(b(a(x1)))) -> B(a(a(x1))) 33.74/9.56 B(a(b(a(x1)))) -> A(a(x1)) 33.74/9.56 A(a(a(a(x1)))) -> B(a(b(x1))) 33.74/9.56 A(a(a(a(x1)))) -> A(b(x1)) 33.74/9.56 A(a(a(a(x1)))) -> B(x1) 33.74/9.56 The remaining pairs can at least be oriented weakly. 33.74/9.56 Used ordering: Polynomial interpretation [POLO]: 33.74/9.56 33.74/9.56 POL(A(x_1)) = 1 + x_1 33.74/9.56 POL(B(x_1)) = 1 + x_1 33.74/9.56 POL(a(x_1)) = 1 + x_1 33.74/9.56 POL(b(x_1)) = 1 + x_1 33.74/9.56 33.74/9.56 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 33.74/9.56 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 33.74/9.56 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (6) 33.74/9.56 Obligation: 33.74/9.56 Q DP problem: 33.74/9.56 The TRS P consists of the following rules: 33.74/9.56 33.74/9.56 B(a(b(a(x1)))) -> B(b(a(a(x1)))) 33.74/9.56 B(b(b(b(x1)))) -> A(b(b(b(x1)))) 33.74/9.56 A(a(a(a(x1)))) -> A(b(a(b(x1)))) 33.74/9.56 33.74/9.56 The TRS R consists of the following rules: 33.74/9.56 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 33.74/9.56 Q is empty. 33.74/9.56 We have to consider all minimal (P,Q,R)-chains. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (7) DependencyGraphProof (EQUIVALENT) 33.74/9.56 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 2 SCCs with 1 less node. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (8) 33.74/9.56 Complex Obligation (AND) 33.74/9.56 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (9) 33.74/9.56 Obligation: 33.74/9.56 Q DP problem: 33.74/9.56 The TRS P consists of the following rules: 33.74/9.56 33.74/9.56 A(a(a(a(x1)))) -> A(b(a(b(x1)))) 33.74/9.56 33.74/9.56 The TRS R consists of the following rules: 33.74/9.56 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 33.74/9.56 Q is empty. 33.74/9.56 We have to consider all minimal (P,Q,R)-chains. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (10) QDPOrderProof (EQUIVALENT) 33.74/9.56 We use the reduction pair processor [LPAR04,JAR06]. 33.74/9.56 33.74/9.56 33.74/9.56 The following pairs can be oriented strictly and are deleted. 33.74/9.56 33.74/9.56 A(a(a(a(x1)))) -> A(b(a(b(x1)))) 33.74/9.56 The remaining pairs can at least be oriented weakly. 33.74/9.56 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 33.74/9.56 33.74/9.56 <<< 33.74/9.56 POL(A(x_1)) = [[-I]] + [[0A, 1A, 0A]] * x_1 33.74/9.56 >>> 33.74/9.56 33.74/9.56 <<< 33.74/9.56 POL(a(x_1)) = [[-I], [-I], [-I]] + [[0A, 0A, 0A], [0A, 1A, -I], [0A, 0A, 0A]] * x_1 33.74/9.56 >>> 33.74/9.56 33.74/9.56 <<< 33.74/9.56 POL(b(x_1)) = [[-I], [-I], [-I]] + [[1A, 0A, 0A], [0A, 0A, -I], [0A, 1A, -I]] * x_1 33.74/9.56 >>> 33.74/9.56 33.74/9.56 33.74/9.56 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 33.74/9.56 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 33.74/9.56 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (11) 33.74/9.56 Obligation: 33.74/9.56 Q DP problem: 33.74/9.56 P is empty. 33.74/9.56 The TRS R consists of the following rules: 33.74/9.56 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 33.74/9.56 Q is empty. 33.74/9.56 We have to consider all minimal (P,Q,R)-chains. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (12) PisEmptyProof (EQUIVALENT) 33.74/9.56 The TRS P is empty. Hence, there is no (P,Q,R) chain. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (13) 33.74/9.56 YES 33.74/9.56 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (14) 33.74/9.56 Obligation: 33.74/9.56 Q DP problem: 33.74/9.56 The TRS P consists of the following rules: 33.74/9.56 33.74/9.56 B(a(b(a(x1)))) -> B(b(a(a(x1)))) 33.74/9.56 33.74/9.56 The TRS R consists of the following rules: 33.74/9.56 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 33.74/9.56 Q is empty. 33.74/9.56 We have to consider all minimal (P,Q,R)-chains. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (15) QDPOrderProof (EQUIVALENT) 33.74/9.56 We use the reduction pair processor [LPAR04,JAR06]. 33.74/9.56 33.74/9.56 33.74/9.56 The following pairs can be oriented strictly and are deleted. 33.74/9.56 33.74/9.56 B(a(b(a(x1)))) -> B(b(a(a(x1)))) 33.74/9.56 The remaining pairs can at least be oriented weakly. 33.74/9.56 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 33.74/9.56 33.74/9.56 <<< 33.74/9.56 POL(B(x_1)) = [[0A]] + [[-I, 0A, -I]] * x_1 33.74/9.56 >>> 33.74/9.56 33.74/9.56 <<< 33.74/9.56 POL(a(x_1)) = [[0A], [0A], [-I]] + [[-I, -I, 0A], [0A, 1A, 0A], [0A, 0A, -I]] * x_1 33.74/9.56 >>> 33.74/9.56 33.74/9.56 <<< 33.74/9.56 POL(b(x_1)) = [[0A], [-I], [-I]] + [[-I, 1A, 0A], [-I, -I, 0A], [0A, 0A, 1A]] * x_1 33.74/9.56 >>> 33.74/9.56 33.74/9.56 33.74/9.56 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 33.74/9.56 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 33.74/9.56 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (16) 33.74/9.56 Obligation: 33.74/9.56 Q DP problem: 33.74/9.56 P is empty. 33.74/9.56 The TRS R consists of the following rules: 33.74/9.56 33.74/9.56 b(a(b(a(x1)))) -> b(b(a(a(x1)))) 33.74/9.56 b(b(b(b(x1)))) -> a(b(b(b(x1)))) 33.74/9.56 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 33.74/9.56 33.74/9.56 Q is empty. 33.74/9.56 We have to consider all minimal (P,Q,R)-chains. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (17) PisEmptyProof (EQUIVALENT) 33.74/9.56 The TRS P is empty. Hence, there is no (P,Q,R) chain. 33.74/9.56 ---------------------------------------- 33.74/9.56 33.74/9.56 (18) 33.74/9.56 YES 34.26/9.64 EOF