35.74/10.19 YES 36.14/10.26 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 36.14/10.26 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 36.14/10.26 36.14/10.26 36.14/10.26 Termination w.r.t. Q of the given QTRS could be proven: 36.14/10.26 36.14/10.26 (0) QTRS 36.14/10.26 (1) QTRS Reverse [EQUIVALENT, 0 ms] 36.14/10.26 (2) QTRS 36.14/10.26 (3) DependencyPairsProof [EQUIVALENT, 2 ms] 36.14/10.26 (4) QDP 36.14/10.26 (5) DependencyGraphProof [EQUIVALENT, 0 ms] 36.14/10.26 (6) QDP 36.14/10.26 (7) QDPOrderProof [EQUIVALENT, 61 ms] 36.14/10.26 (8) QDP 36.14/10.26 (9) QDPOrderProof [EQUIVALENT, 20 ms] 36.14/10.26 (10) QDP 36.14/10.26 (11) PisEmptyProof [EQUIVALENT, 0 ms] 36.14/10.26 (12) YES 36.14/10.26 36.14/10.26 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (0) 36.14/10.26 Obligation: 36.14/10.26 Q restricted rewrite system: 36.14/10.26 The TRS R consists of the following rules: 36.14/10.26 36.14/10.26 a(x1) -> x1 36.14/10.26 a(a(b(x1))) -> a(b(b(a(x1)))) 36.14/10.26 b(b(b(x1))) -> a(x1) 36.14/10.26 36.14/10.26 Q is empty. 36.14/10.26 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (1) QTRS Reverse (EQUIVALENT) 36.14/10.26 We applied the QTRS Reverse Processor [REVERSE]. 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (2) 36.14/10.26 Obligation: 36.14/10.26 Q restricted rewrite system: 36.14/10.26 The TRS R consists of the following rules: 36.14/10.26 36.14/10.26 a(x1) -> x1 36.14/10.26 b(a(a(x1))) -> a(b(b(a(x1)))) 36.14/10.26 b(b(b(x1))) -> a(x1) 36.14/10.26 36.14/10.26 Q is empty. 36.14/10.26 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (3) DependencyPairsProof (EQUIVALENT) 36.14/10.26 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (4) 36.14/10.26 Obligation: 36.14/10.26 Q DP problem: 36.14/10.26 The TRS P consists of the following rules: 36.14/10.26 36.14/10.26 B(a(a(x1))) -> A(b(b(a(x1)))) 36.14/10.26 B(a(a(x1))) -> B(b(a(x1))) 36.14/10.26 B(a(a(x1))) -> B(a(x1)) 36.14/10.26 B(b(b(x1))) -> A(x1) 36.14/10.26 36.14/10.26 The TRS R consists of the following rules: 36.14/10.26 36.14/10.26 a(x1) -> x1 36.14/10.26 b(a(a(x1))) -> a(b(b(a(x1)))) 36.14/10.26 b(b(b(x1))) -> a(x1) 36.14/10.26 36.14/10.26 Q is empty. 36.14/10.26 We have to consider all minimal (P,Q,R)-chains. 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (5) DependencyGraphProof (EQUIVALENT) 36.14/10.26 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 2 less nodes. 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (6) 36.14/10.26 Obligation: 36.14/10.26 Q DP problem: 36.14/10.26 The TRS P consists of the following rules: 36.14/10.26 36.14/10.26 B(a(a(x1))) -> B(a(x1)) 36.14/10.26 B(a(a(x1))) -> B(b(a(x1))) 36.14/10.26 36.14/10.26 The TRS R consists of the following rules: 36.14/10.26 36.14/10.26 a(x1) -> x1 36.14/10.26 b(a(a(x1))) -> a(b(b(a(x1)))) 36.14/10.26 b(b(b(x1))) -> a(x1) 36.14/10.26 36.14/10.26 Q is empty. 36.14/10.26 We have to consider all minimal (P,Q,R)-chains. 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (7) QDPOrderProof (EQUIVALENT) 36.14/10.26 We use the reduction pair processor [LPAR04,JAR06]. 36.14/10.26 36.14/10.26 36.14/10.26 The following pairs can be oriented strictly and are deleted. 36.14/10.26 36.14/10.26 B(a(a(x1))) -> B(a(x1)) 36.14/10.26 The remaining pairs can at least be oriented weakly. 36.14/10.26 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 36.14/10.26 36.14/10.26 <<< 36.14/10.26 POL(B(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 36.14/10.26 >>> 36.14/10.26 36.14/10.26 <<< 36.14/10.26 POL(a(x_1)) = [[-I], [-I], [0A]] + [[0A, 0A, -I], [0A, 0A, -I], [0A, 0A, 1A]] * x_1 36.14/10.26 >>> 36.14/10.26 36.14/10.26 <<< 36.14/10.26 POL(b(x_1)) = [[0A], [0A], [-I]] + [[0A, 0A, 1A], [0A, 0A, 0A], [-I, 0A, 0A]] * x_1 36.14/10.26 >>> 36.14/10.26 36.14/10.26 36.14/10.26 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 36.14/10.26 36.14/10.26 a(x1) -> x1 36.14/10.26 b(a(a(x1))) -> a(b(b(a(x1)))) 36.14/10.26 b(b(b(x1))) -> a(x1) 36.14/10.26 36.14/10.26 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (8) 36.14/10.26 Obligation: 36.14/10.26 Q DP problem: 36.14/10.26 The TRS P consists of the following rules: 36.14/10.26 36.14/10.26 B(a(a(x1))) -> B(b(a(x1))) 36.14/10.26 36.14/10.26 The TRS R consists of the following rules: 36.14/10.26 36.14/10.26 a(x1) -> x1 36.14/10.26 b(a(a(x1))) -> a(b(b(a(x1)))) 36.14/10.26 b(b(b(x1))) -> a(x1) 36.14/10.26 36.14/10.26 Q is empty. 36.14/10.26 We have to consider all minimal (P,Q,R)-chains. 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (9) QDPOrderProof (EQUIVALENT) 36.14/10.26 We use the reduction pair processor [LPAR04,JAR06]. 36.14/10.26 36.14/10.26 36.14/10.26 The following pairs can be oriented strictly and are deleted. 36.14/10.26 36.14/10.26 B(a(a(x1))) -> B(b(a(x1))) 36.14/10.26 The remaining pairs can at least be oriented weakly. 36.14/10.26 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 36.14/10.26 36.14/10.26 <<< 36.14/10.26 POL(B(x_1)) = [[-I]] + [[0A, 0A, -I]] * x_1 36.14/10.26 >>> 36.14/10.26 36.14/10.26 <<< 36.14/10.26 POL(a(x_1)) = [[-I], [0A], [-I]] + [[0A, 0A, 0A], [0A, 1A, 0A], [0A, 0A, 0A]] * x_1 36.14/10.26 >>> 36.14/10.26 36.14/10.26 <<< 36.14/10.26 POL(b(x_1)) = [[0A], [0A], [0A]] + [[0A, 0A, 0A], [0A, 0A, -I], [0A, 1A, 0A]] * x_1 36.14/10.26 >>> 36.14/10.26 36.14/10.26 36.14/10.26 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 36.14/10.26 36.14/10.26 a(x1) -> x1 36.14/10.26 b(a(a(x1))) -> a(b(b(a(x1)))) 36.14/10.26 b(b(b(x1))) -> a(x1) 36.14/10.26 36.14/10.26 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (10) 36.14/10.26 Obligation: 36.14/10.26 Q DP problem: 36.14/10.26 P is empty. 36.14/10.26 The TRS R consists of the following rules: 36.14/10.26 36.14/10.26 a(x1) -> x1 36.14/10.26 b(a(a(x1))) -> a(b(b(a(x1)))) 36.14/10.26 b(b(b(x1))) -> a(x1) 36.14/10.26 36.14/10.26 Q is empty. 36.14/10.26 We have to consider all minimal (P,Q,R)-chains. 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (11) PisEmptyProof (EQUIVALENT) 36.14/10.26 The TRS P is empty. Hence, there is no (P,Q,R) chain. 36.14/10.26 ---------------------------------------- 36.14/10.26 36.14/10.26 (12) 36.14/10.26 YES 36.52/10.39 EOF