39.99/11.22 YES 40.56/11.39 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 40.56/11.39 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 40.56/11.39 40.56/11.39 40.56/11.39 Termination w.r.t. Q of the given QTRS could be proven: 40.56/11.39 40.56/11.39 (0) QTRS 40.56/11.39 (1) DependencyPairsProof [EQUIVALENT, 1 ms] 40.56/11.39 (2) QDP 40.56/11.39 (3) QDPOrderProof [EQUIVALENT, 22 ms] 40.56/11.39 (4) QDP 40.56/11.39 (5) QDPOrderProof [EQUIVALENT, 95 ms] 40.56/11.39 (6) QDP 40.56/11.39 (7) QDPOrderProof [EQUIVALENT, 26 ms] 40.56/11.39 (8) QDP 40.56/11.39 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 40.56/11.39 (10) TRUE 40.56/11.39 40.56/11.39 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (0) 40.56/11.39 Obligation: 40.56/11.39 Q restricted rewrite system: 40.56/11.39 The TRS R consists of the following rules: 40.56/11.39 40.56/11.39 a(x1) -> x1 40.56/11.39 a(a(b(x1))) -> c(b(a(a(x1)))) 40.56/11.39 b(c(x1)) -> a(b(x1)) 40.56/11.39 40.56/11.39 Q is empty. 40.56/11.39 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (1) DependencyPairsProof (EQUIVALENT) 40.56/11.39 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (2) 40.56/11.39 Obligation: 40.56/11.39 Q DP problem: 40.56/11.39 The TRS P consists of the following rules: 40.56/11.39 40.56/11.39 A(a(b(x1))) -> B(a(a(x1))) 40.56/11.39 A(a(b(x1))) -> A(a(x1)) 40.56/11.39 A(a(b(x1))) -> A(x1) 40.56/11.39 B(c(x1)) -> A(b(x1)) 40.56/11.39 B(c(x1)) -> B(x1) 40.56/11.39 40.56/11.39 The TRS R consists of the following rules: 40.56/11.39 40.56/11.39 a(x1) -> x1 40.56/11.39 a(a(b(x1))) -> c(b(a(a(x1)))) 40.56/11.39 b(c(x1)) -> a(b(x1)) 40.56/11.39 40.56/11.39 Q is empty. 40.56/11.39 We have to consider all minimal (P,Q,R)-chains. 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (3) QDPOrderProof (EQUIVALENT) 40.56/11.39 We use the reduction pair processor [LPAR04,JAR06]. 40.56/11.39 40.56/11.39 40.56/11.39 The following pairs can be oriented strictly and are deleted. 40.56/11.39 40.56/11.39 A(a(b(x1))) -> A(a(x1)) 40.56/11.39 A(a(b(x1))) -> A(x1) 40.56/11.39 The remaining pairs can at least be oriented weakly. 40.56/11.39 Used ordering: Polynomial interpretation [POLO]: 40.56/11.39 40.56/11.39 POL(A(x_1)) = x_1 40.56/11.39 POL(B(x_1)) = 1 + x_1 40.56/11.39 POL(a(x_1)) = x_1 40.56/11.39 POL(b(x_1)) = 1 + x_1 40.56/11.39 POL(c(x_1)) = x_1 40.56/11.39 40.56/11.39 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 40.56/11.39 40.56/11.39 a(x1) -> x1 40.56/11.39 a(a(b(x1))) -> c(b(a(a(x1)))) 40.56/11.39 b(c(x1)) -> a(b(x1)) 40.56/11.39 40.56/11.39 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (4) 40.56/11.39 Obligation: 40.56/11.39 Q DP problem: 40.56/11.39 The TRS P consists of the following rules: 40.56/11.39 40.56/11.39 A(a(b(x1))) -> B(a(a(x1))) 40.56/11.39 B(c(x1)) -> A(b(x1)) 40.56/11.39 B(c(x1)) -> B(x1) 40.56/11.39 40.56/11.39 The TRS R consists of the following rules: 40.56/11.39 40.56/11.39 a(x1) -> x1 40.56/11.39 a(a(b(x1))) -> c(b(a(a(x1)))) 40.56/11.39 b(c(x1)) -> a(b(x1)) 40.56/11.39 40.56/11.39 Q is empty. 40.56/11.39 We have to consider all minimal (P,Q,R)-chains. 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (5) QDPOrderProof (EQUIVALENT) 40.56/11.39 We use the reduction pair processor [LPAR04,JAR06]. 40.56/11.39 40.56/11.39 40.56/11.39 The following pairs can be oriented strictly and are deleted. 40.56/11.39 40.56/11.39 B(c(x1)) -> B(x1) 40.56/11.39 The remaining pairs can at least be oriented weakly. 40.56/11.39 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(A(x_1)) = [[1A]] + [[0A, 0A, -I]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(a(x_1)) = [[-I], [0A], [-I]] + [[0A, 0A, -I], [0A, 0A, -I], [1A, -I, 0A]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(b(x_1)) = [[0A], [1A], [0A]] + [[-I, -I, 0A], [1A, 1A, 0A], [0A, 0A, -I]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(B(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(c(x_1)) = [[1A], [0A], [1A]] + [[-I, 0A, 1A], [0A, 0A, 0A], [1A, 1A, 0A]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 40.56/11.39 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 40.56/11.39 40.56/11.39 a(x1) -> x1 40.56/11.39 a(a(b(x1))) -> c(b(a(a(x1)))) 40.56/11.39 b(c(x1)) -> a(b(x1)) 40.56/11.39 40.56/11.39 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (6) 40.56/11.39 Obligation: 40.56/11.39 Q DP problem: 40.56/11.39 The TRS P consists of the following rules: 40.56/11.39 40.56/11.39 A(a(b(x1))) -> B(a(a(x1))) 40.56/11.39 B(c(x1)) -> A(b(x1)) 40.56/11.39 40.56/11.39 The TRS R consists of the following rules: 40.56/11.39 40.56/11.39 a(x1) -> x1 40.56/11.39 a(a(b(x1))) -> c(b(a(a(x1)))) 40.56/11.39 b(c(x1)) -> a(b(x1)) 40.56/11.39 40.56/11.39 Q is empty. 40.56/11.39 We have to consider all minimal (P,Q,R)-chains. 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (7) QDPOrderProof (EQUIVALENT) 40.56/11.39 We use the reduction pair processor [LPAR04,JAR06]. 40.56/11.39 40.56/11.39 40.56/11.39 The following pairs can be oriented strictly and are deleted. 40.56/11.39 40.56/11.39 A(a(b(x1))) -> B(a(a(x1))) 40.56/11.39 The remaining pairs can at least be oriented weakly. 40.56/11.39 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(A(x_1)) = [[-I]] + [[0A, 0A, 0A]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(a(x_1)) = [[-I], [0A], [0A]] + [[0A, 0A, 0A], [1A, 0A, 0A], [-I, -I, 0A]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(b(x_1)) = [[0A], [0A], [0A]] + [[-I, -I, 0A], [0A, -I, 0A], [-I, -I, 0A]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(B(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 <<< 40.56/11.39 POL(c(x_1)) = [[1A], [1A], [0A]] + [[0A, -I, 1A], [0A, -I, 0A], [0A, -I, 0A]] * x_1 40.56/11.39 >>> 40.56/11.39 40.56/11.39 40.56/11.39 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 40.56/11.39 40.56/11.39 a(x1) -> x1 40.56/11.39 a(a(b(x1))) -> c(b(a(a(x1)))) 40.56/11.39 b(c(x1)) -> a(b(x1)) 40.56/11.39 40.56/11.39 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (8) 40.56/11.39 Obligation: 40.56/11.39 Q DP problem: 40.56/11.39 The TRS P consists of the following rules: 40.56/11.39 40.56/11.39 B(c(x1)) -> A(b(x1)) 40.56/11.39 40.56/11.39 The TRS R consists of the following rules: 40.56/11.39 40.56/11.39 a(x1) -> x1 40.56/11.39 a(a(b(x1))) -> c(b(a(a(x1)))) 40.56/11.39 b(c(x1)) -> a(b(x1)) 40.56/11.39 40.56/11.39 Q is empty. 40.56/11.39 We have to consider all minimal (P,Q,R)-chains. 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (9) DependencyGraphProof (EQUIVALENT) 40.56/11.39 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node. 40.56/11.39 ---------------------------------------- 40.56/11.39 40.56/11.39 (10) 40.56/11.39 TRUE 40.94/11.46 EOF