31.73/9.02 YES 32.19/9.11 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 32.19/9.11 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 32.19/9.11 32.19/9.11 32.19/9.11 Termination w.r.t. Q of the given QTRS could be proven: 32.19/9.11 32.19/9.11 (0) QTRS 32.19/9.11 (1) DependencyPairsProof [EQUIVALENT, 5 ms] 32.19/9.11 (2) QDP 32.19/9.11 (3) QDPOrderProof [EQUIVALENT, 100 ms] 32.19/9.11 (4) QDP 32.19/9.11 (5) QDPOrderProof [EQUIVALENT, 38 ms] 32.19/9.11 (6) QDP 32.19/9.11 (7) PisEmptyProof [EQUIVALENT, 0 ms] 32.19/9.11 (8) YES 32.19/9.11 32.19/9.11 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (0) 32.19/9.11 Obligation: 32.19/9.11 Q restricted rewrite system: 32.19/9.11 The TRS R consists of the following rules: 32.19/9.11 32.19/9.11 a(x1) -> x1 32.19/9.11 a(x1) -> b(c(b(x1))) 32.19/9.11 a(b(b(x1))) -> b(b(a(a(x1)))) 32.19/9.11 32.19/9.11 Q is empty. 32.19/9.11 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (1) DependencyPairsProof (EQUIVALENT) 32.19/9.11 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (2) 32.19/9.11 Obligation: 32.19/9.11 Q DP problem: 32.19/9.11 The TRS P consists of the following rules: 32.19/9.11 32.19/9.11 A(b(b(x1))) -> A(a(x1)) 32.19/9.11 A(b(b(x1))) -> A(x1) 32.19/9.11 32.19/9.11 The TRS R consists of the following rules: 32.19/9.11 32.19/9.11 a(x1) -> x1 32.19/9.11 a(x1) -> b(c(b(x1))) 32.19/9.11 a(b(b(x1))) -> b(b(a(a(x1)))) 32.19/9.11 32.19/9.11 Q is empty. 32.19/9.11 We have to consider all minimal (P,Q,R)-chains. 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (3) QDPOrderProof (EQUIVALENT) 32.19/9.11 We use the reduction pair processor [LPAR04,JAR06]. 32.19/9.11 32.19/9.11 32.19/9.11 The following pairs can be oriented strictly and are deleted. 32.19/9.11 32.19/9.11 A(b(b(x1))) -> A(x1) 32.19/9.11 The remaining pairs can at least be oriented weakly. 32.19/9.11 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 32.19/9.11 32.19/9.11 <<< 32.19/9.11 POL(A(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 32.19/9.11 >>> 32.19/9.11 32.19/9.11 <<< 32.19/9.11 POL(b(x_1)) = [[0A], [-I], [1A]] + [[-I, 1A, -I], [0A, 0A, 0A], [0A, -I, -I]] * x_1 32.19/9.11 >>> 32.19/9.11 32.19/9.11 <<< 32.19/9.11 POL(a(x_1)) = [[0A], [0A], [1A]] + [[0A, 1A, 0A], [-I, 0A, -I], [0A, 1A, 0A]] * x_1 32.19/9.11 >>> 32.19/9.11 32.19/9.11 <<< 32.19/9.11 POL(c(x_1)) = [[0A], [-I], [0A]] + [[-I, -I, -I], [-I, -I, -I], [-I, -I, -I]] * x_1 32.19/9.11 >>> 32.19/9.11 32.19/9.11 32.19/9.11 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 32.19/9.11 32.19/9.11 a(x1) -> x1 32.19/9.11 a(x1) -> b(c(b(x1))) 32.19/9.11 a(b(b(x1))) -> b(b(a(a(x1)))) 32.19/9.11 32.19/9.11 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (4) 32.19/9.11 Obligation: 32.19/9.11 Q DP problem: 32.19/9.11 The TRS P consists of the following rules: 32.19/9.11 32.19/9.11 A(b(b(x1))) -> A(a(x1)) 32.19/9.11 32.19/9.11 The TRS R consists of the following rules: 32.19/9.11 32.19/9.11 a(x1) -> x1 32.19/9.11 a(x1) -> b(c(b(x1))) 32.19/9.11 a(b(b(x1))) -> b(b(a(a(x1)))) 32.19/9.11 32.19/9.11 Q is empty. 32.19/9.11 We have to consider all minimal (P,Q,R)-chains. 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (5) QDPOrderProof (EQUIVALENT) 32.19/9.11 We use the reduction pair processor [LPAR04,JAR06]. 32.19/9.11 32.19/9.11 32.19/9.11 The following pairs can be oriented strictly and are deleted. 32.19/9.11 32.19/9.11 A(b(b(x1))) -> A(a(x1)) 32.19/9.11 The remaining pairs can at least be oriented weakly. 32.19/9.11 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 32.19/9.11 32.19/9.11 <<< 32.19/9.11 POL(A(x_1)) = [[-I]] + [[1A, 0A, 0A]] * x_1 32.19/9.11 >>> 32.19/9.11 32.19/9.11 <<< 32.19/9.11 POL(b(x_1)) = [[-I], [1A], [-I]] + [[0A, 0A, -I], [1A, 0A, 0A], [0A, -I, -I]] * x_1 32.19/9.11 >>> 32.19/9.11 32.19/9.11 <<< 32.19/9.11 POL(a(x_1)) = [[0A], [1A], [0A]] + [[0A, -I, -I], [1A, 0A, 0A], [0A, -I, 0A]] * x_1 32.19/9.11 >>> 32.19/9.11 32.19/9.11 <<< 32.19/9.11 POL(c(x_1)) = [[0A], [0A], [0A]] + [[-I, -I, -I], [-I, -I, -I], [-I, -I, -I]] * x_1 32.19/9.11 >>> 32.19/9.11 32.19/9.11 32.19/9.11 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 32.19/9.11 32.19/9.11 a(x1) -> x1 32.19/9.11 a(x1) -> b(c(b(x1))) 32.19/9.11 a(b(b(x1))) -> b(b(a(a(x1)))) 32.19/9.11 32.19/9.11 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (6) 32.19/9.11 Obligation: 32.19/9.11 Q DP problem: 32.19/9.11 P is empty. 32.19/9.11 The TRS R consists of the following rules: 32.19/9.11 32.19/9.11 a(x1) -> x1 32.19/9.11 a(x1) -> b(c(b(x1))) 32.19/9.11 a(b(b(x1))) -> b(b(a(a(x1)))) 32.19/9.11 32.19/9.11 Q is empty. 32.19/9.11 We have to consider all minimal (P,Q,R)-chains. 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (7) PisEmptyProof (EQUIVALENT) 32.19/9.11 The TRS P is empty. Hence, there is no (P,Q,R) chain. 32.19/9.11 ---------------------------------------- 32.19/9.11 32.19/9.11 (8) 32.19/9.11 YES 32.56/9.29 EOF