31.15/8.72 YES 31.29/8.78 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 31.29/8.78 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 31.29/8.78 31.29/8.78 31.29/8.78 Termination w.r.t. Q of the given QTRS could be proven: 31.29/8.78 31.29/8.78 (0) QTRS 31.29/8.78 (1) QTRS Reverse [EQUIVALENT, 0 ms] 31.29/8.78 (2) QTRS 31.29/8.78 (3) DependencyPairsProof [EQUIVALENT, 2 ms] 31.29/8.78 (4) QDP 31.29/8.78 (5) QDPOrderProof [EQUIVALENT, 168 ms] 31.29/8.78 (6) QDP 31.29/8.78 (7) QDPOrderProof [EQUIVALENT, 15 ms] 31.29/8.78 (8) QDP 31.29/8.78 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 31.29/8.78 (10) TRUE 31.29/8.78 31.29/8.78 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (0) 31.29/8.78 Obligation: 31.29/8.78 Q restricted rewrite system: 31.29/8.78 The TRS R consists of the following rules: 31.29/8.78 31.29/8.78 a(a(b(b(x1)))) -> a(b(a(a(x1)))) 31.29/8.78 a(x1) -> b(b(b(x1))) 31.29/8.78 31.29/8.78 Q is empty. 31.29/8.78 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (1) QTRS Reverse (EQUIVALENT) 31.29/8.78 We applied the QTRS Reverse Processor [REVERSE]. 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (2) 31.29/8.78 Obligation: 31.29/8.78 Q restricted rewrite system: 31.29/8.78 The TRS R consists of the following rules: 31.29/8.78 31.29/8.78 b(b(a(a(x1)))) -> a(a(b(a(x1)))) 31.29/8.78 a(x1) -> b(b(b(x1))) 31.29/8.78 31.29/8.78 Q is empty. 31.29/8.78 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (3) DependencyPairsProof (EQUIVALENT) 31.29/8.78 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (4) 31.29/8.78 Obligation: 31.29/8.78 Q DP problem: 31.29/8.78 The TRS P consists of the following rules: 31.29/8.78 31.29/8.78 B(b(a(a(x1)))) -> A(a(b(a(x1)))) 31.29/8.78 B(b(a(a(x1)))) -> A(b(a(x1))) 31.29/8.78 B(b(a(a(x1)))) -> B(a(x1)) 31.29/8.78 A(x1) -> B(b(b(x1))) 31.29/8.78 A(x1) -> B(b(x1)) 31.29/8.78 A(x1) -> B(x1) 31.29/8.78 31.29/8.78 The TRS R consists of the following rules: 31.29/8.78 31.29/8.78 b(b(a(a(x1)))) -> a(a(b(a(x1)))) 31.29/8.78 a(x1) -> b(b(b(x1))) 31.29/8.78 31.29/8.78 Q is empty. 31.29/8.78 We have to consider all minimal (P,Q,R)-chains. 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (5) QDPOrderProof (EQUIVALENT) 31.29/8.78 We use the reduction pair processor [LPAR04,JAR06]. 31.29/8.78 31.29/8.78 31.29/8.78 The following pairs can be oriented strictly and are deleted. 31.29/8.78 31.29/8.78 B(b(a(a(x1)))) -> B(a(x1)) 31.29/8.78 The remaining pairs can at least be oriented weakly. 31.29/8.78 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 31.29/8.78 31.29/8.78 <<< 31.29/8.78 POL(B(x_1)) = [[-I]] + [[0A, -I, -I]] * x_1 31.29/8.78 >>> 31.29/8.78 31.29/8.78 <<< 31.29/8.78 POL(b(x_1)) = [[-I], [-I], [-I]] + [[0A, -I, -I], [0A, -I, 0A], [0A, 0A, -I]] * x_1 31.29/8.78 >>> 31.29/8.78 31.29/8.78 <<< 31.29/8.78 POL(a(x_1)) = [[-I], [-I], [0A]] + [[0A, -I, 0A], [0A, -I, 0A], [1A, 0A, 1A]] * x_1 31.29/8.78 >>> 31.29/8.78 31.29/8.78 <<< 31.29/8.78 POL(A(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 31.29/8.78 >>> 31.29/8.78 31.29/8.78 31.29/8.78 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 31.29/8.78 31.29/8.78 a(x1) -> b(b(b(x1))) 31.29/8.78 b(b(a(a(x1)))) -> a(a(b(a(x1)))) 31.29/8.78 31.29/8.78 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (6) 31.29/8.78 Obligation: 31.29/8.78 Q DP problem: 31.29/8.78 The TRS P consists of the following rules: 31.29/8.78 31.29/8.78 B(b(a(a(x1)))) -> A(a(b(a(x1)))) 31.29/8.78 B(b(a(a(x1)))) -> A(b(a(x1))) 31.29/8.78 A(x1) -> B(b(b(x1))) 31.29/8.78 A(x1) -> B(b(x1)) 31.29/8.78 A(x1) -> B(x1) 31.29/8.78 31.29/8.78 The TRS R consists of the following rules: 31.29/8.78 31.29/8.78 b(b(a(a(x1)))) -> a(a(b(a(x1)))) 31.29/8.78 a(x1) -> b(b(b(x1))) 31.29/8.78 31.29/8.78 Q is empty. 31.29/8.78 We have to consider all minimal (P,Q,R)-chains. 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (7) QDPOrderProof (EQUIVALENT) 31.29/8.78 We use the reduction pair processor [LPAR04,JAR06]. 31.29/8.78 31.29/8.78 31.29/8.78 The following pairs can be oriented strictly and are deleted. 31.29/8.78 31.29/8.78 B(b(a(a(x1)))) -> A(a(b(a(x1)))) 31.29/8.78 B(b(a(a(x1)))) -> A(b(a(x1))) 31.29/8.78 The remaining pairs can at least be oriented weakly. 31.29/8.78 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 31.29/8.78 31.29/8.78 <<< 31.29/8.78 POL(B(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 31.29/8.78 >>> 31.29/8.78 31.29/8.78 <<< 31.29/8.78 POL(b(x_1)) = [[0A], [0A], [0A]] + [[-I, -I, 0A], [-I, -I, 0A], [0A, 0A, -I]] * x_1 31.29/8.78 >>> 31.29/8.78 31.29/8.78 <<< 31.29/8.78 POL(a(x_1)) = [[0A], [1A], [0A]] + [[0A, 1A, 0A], [1A, 0A, 0A], [0A, 0A, -I]] * x_1 31.29/8.78 >>> 31.29/8.78 31.29/8.78 <<< 31.29/8.78 POL(A(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 31.29/8.78 >>> 31.29/8.78 31.29/8.78 31.29/8.78 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 31.29/8.78 31.29/8.78 a(x1) -> b(b(b(x1))) 31.29/8.78 b(b(a(a(x1)))) -> a(a(b(a(x1)))) 31.29/8.78 31.29/8.78 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (8) 31.29/8.78 Obligation: 31.29/8.78 Q DP problem: 31.29/8.78 The TRS P consists of the following rules: 31.29/8.78 31.29/8.78 A(x1) -> B(b(b(x1))) 31.29/8.78 A(x1) -> B(b(x1)) 31.29/8.78 A(x1) -> B(x1) 31.29/8.78 31.29/8.78 The TRS R consists of the following rules: 31.29/8.78 31.29/8.78 b(b(a(a(x1)))) -> a(a(b(a(x1)))) 31.29/8.78 a(x1) -> b(b(b(x1))) 31.29/8.78 31.29/8.78 Q is empty. 31.29/8.78 We have to consider all minimal (P,Q,R)-chains. 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (9) DependencyGraphProof (EQUIVALENT) 31.29/8.78 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 3 less nodes. 31.29/8.78 ---------------------------------------- 31.29/8.78 31.29/8.78 (10) 31.29/8.78 TRUE 31.49/8.87 EOF