26.70/7.68 YES 26.98/7.74 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 26.98/7.74 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 26.98/7.74 26.98/7.74 26.98/7.74 Termination w.r.t. Q of the given QTRS could be proven: 26.98/7.74 26.98/7.74 (0) QTRS 26.98/7.74 (1) QTRS Reverse [EQUIVALENT, 0 ms] 26.98/7.74 (2) QTRS 26.98/7.74 (3) DependencyPairsProof [EQUIVALENT, 0 ms] 26.98/7.74 (4) QDP 26.98/7.74 (5) DependencyGraphProof [EQUIVALENT, 0 ms] 26.98/7.74 (6) QDP 26.98/7.74 (7) QDPOrderProof [EQUIVALENT, 151 ms] 26.98/7.74 (8) QDP 26.98/7.74 (9) QDPOrderProof [EQUIVALENT, 55 ms] 26.98/7.74 (10) QDP 26.98/7.74 (11) QDPOrderProof [EQUIVALENT, 55 ms] 26.98/7.74 (12) QDP 26.98/7.74 (13) PisEmptyProof [EQUIVALENT, 0 ms] 26.98/7.74 (14) YES 26.98/7.74 26.98/7.74 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (0) 26.98/7.74 Obligation: 26.98/7.74 Q restricted rewrite system: 26.98/7.74 The TRS R consists of the following rules: 26.98/7.74 26.98/7.74 a(x1) -> x1 26.98/7.74 a(a(b(b(x1)))) -> b(b(a(a(b(a(x1)))))) 26.98/7.74 26.98/7.74 Q is empty. 26.98/7.74 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (1) QTRS Reverse (EQUIVALENT) 26.98/7.74 We applied the QTRS Reverse Processor [REVERSE]. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (2) 26.98/7.74 Obligation: 26.98/7.74 Q restricted rewrite system: 26.98/7.74 The TRS R consists of the following rules: 26.98/7.74 26.98/7.74 a(x1) -> x1 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 26.98/7.74 Q is empty. 26.98/7.74 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (3) DependencyPairsProof (EQUIVALENT) 26.98/7.74 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (4) 26.98/7.74 Obligation: 26.98/7.74 Q DP problem: 26.98/7.74 The TRS P consists of the following rules: 26.98/7.74 26.98/7.74 B(b(a(a(x1)))) -> A(b(a(a(b(b(x1)))))) 26.98/7.74 B(b(a(a(x1)))) -> B(a(a(b(b(x1))))) 26.98/7.74 B(b(a(a(x1)))) -> A(a(b(b(x1)))) 26.98/7.74 B(b(a(a(x1)))) -> A(b(b(x1))) 26.98/7.74 B(b(a(a(x1)))) -> B(b(x1)) 26.98/7.74 B(b(a(a(x1)))) -> B(x1) 26.98/7.74 26.98/7.74 The TRS R consists of the following rules: 26.98/7.74 26.98/7.74 a(x1) -> x1 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 26.98/7.74 Q is empty. 26.98/7.74 We have to consider all minimal (P,Q,R)-chains. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (5) DependencyGraphProof (EQUIVALENT) 26.98/7.74 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 3 less nodes. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (6) 26.98/7.74 Obligation: 26.98/7.74 Q DP problem: 26.98/7.74 The TRS P consists of the following rules: 26.98/7.74 26.98/7.74 B(b(a(a(x1)))) -> B(b(x1)) 26.98/7.74 B(b(a(a(x1)))) -> B(a(a(b(b(x1))))) 26.98/7.74 B(b(a(a(x1)))) -> B(x1) 26.98/7.74 26.98/7.74 The TRS R consists of the following rules: 26.98/7.74 26.98/7.74 a(x1) -> x1 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 26.98/7.74 Q is empty. 26.98/7.74 We have to consider all minimal (P,Q,R)-chains. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (7) QDPOrderProof (EQUIVALENT) 26.98/7.74 We use the reduction pair processor [LPAR04,JAR06]. 26.98/7.74 26.98/7.74 26.98/7.74 The following pairs can be oriented strictly and are deleted. 26.98/7.74 26.98/7.74 B(b(a(a(x1)))) -> B(x1) 26.98/7.74 The remaining pairs can at least be oriented weakly. 26.98/7.74 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(B(x_1)) = [[0A]] + [[0A, -I, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(b(x_1)) = [[0A], [0A], [0A]] + [[-I, 0A, -I], [-I, -I, 0A], [-I, -I, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(a(x_1)) = [[0A], [0A], [0A]] + [[0A, -I, 0A], [0A, 0A, -I], [1A, -I, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 26.98/7.74 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 26.98/7.74 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 a(x1) -> x1 26.98/7.74 26.98/7.74 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (8) 26.98/7.74 Obligation: 26.98/7.74 Q DP problem: 26.98/7.74 The TRS P consists of the following rules: 26.98/7.74 26.98/7.74 B(b(a(a(x1)))) -> B(b(x1)) 26.98/7.74 B(b(a(a(x1)))) -> B(a(a(b(b(x1))))) 26.98/7.74 26.98/7.74 The TRS R consists of the following rules: 26.98/7.74 26.98/7.74 a(x1) -> x1 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 26.98/7.74 Q is empty. 26.98/7.74 We have to consider all minimal (P,Q,R)-chains. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (9) QDPOrderProof (EQUIVALENT) 26.98/7.74 We use the reduction pair processor [LPAR04,JAR06]. 26.98/7.74 26.98/7.74 26.98/7.74 The following pairs can be oriented strictly and are deleted. 26.98/7.74 26.98/7.74 B(b(a(a(x1)))) -> B(b(x1)) 26.98/7.74 The remaining pairs can at least be oriented weakly. 26.98/7.74 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(B(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(b(x_1)) = [[0A], [0A], [0A]] + [[-I, 0A, -I], [-I, 0A, 0A], [-I, 0A, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(a(x_1)) = [[-I], [-I], [1A]] + [[0A, 0A, 0A], [0A, 0A, -I], [1A, 0A, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 26.98/7.74 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 26.98/7.74 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 a(x1) -> x1 26.98/7.74 26.98/7.74 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (10) 26.98/7.74 Obligation: 26.98/7.74 Q DP problem: 26.98/7.74 The TRS P consists of the following rules: 26.98/7.74 26.98/7.74 B(b(a(a(x1)))) -> B(a(a(b(b(x1))))) 26.98/7.74 26.98/7.74 The TRS R consists of the following rules: 26.98/7.74 26.98/7.74 a(x1) -> x1 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 26.98/7.74 Q is empty. 26.98/7.74 We have to consider all minimal (P,Q,R)-chains. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (11) QDPOrderProof (EQUIVALENT) 26.98/7.74 We use the reduction pair processor [LPAR04,JAR06]. 26.98/7.74 26.98/7.74 26.98/7.74 The following pairs can be oriented strictly and are deleted. 26.98/7.74 26.98/7.74 B(b(a(a(x1)))) -> B(a(a(b(b(x1))))) 26.98/7.74 The remaining pairs can at least be oriented weakly. 26.98/7.74 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(B(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(b(x_1)) = [[0A], [0A], [0A]] + [[-I, -I, 0A], [0A, -I, 0A], [0A, 0A, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 <<< 26.98/7.74 POL(a(x_1)) = [[-I], [1A], [0A]] + [[0A, 0A, 0A], [1A, 0A, 0A], [-I, -I, 0A]] * x_1 26.98/7.74 >>> 26.98/7.74 26.98/7.74 26.98/7.74 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 26.98/7.74 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 a(x1) -> x1 26.98/7.74 26.98/7.74 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (12) 26.98/7.74 Obligation: 26.98/7.74 Q DP problem: 26.98/7.74 P is empty. 26.98/7.74 The TRS R consists of the following rules: 26.98/7.74 26.98/7.74 a(x1) -> x1 26.98/7.74 b(b(a(a(x1)))) -> a(b(a(a(b(b(x1)))))) 26.98/7.74 26.98/7.74 Q is empty. 26.98/7.74 We have to consider all minimal (P,Q,R)-chains. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (13) PisEmptyProof (EQUIVALENT) 26.98/7.74 The TRS P is empty. Hence, there is no (P,Q,R) chain. 26.98/7.74 ---------------------------------------- 26.98/7.74 26.98/7.74 (14) 26.98/7.74 YES 27.72/7.96 EOF