24.10/6.97 YES 24.21/6.99 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 24.21/6.99 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 24.21/6.99 24.21/6.99 24.21/6.99 Termination w.r.t. Q of the given QTRS could be proven: 24.21/6.99 24.21/6.99 (0) QTRS 24.21/6.99 (1) DependencyPairsProof [EQUIVALENT, 0 ms] 24.21/6.99 (2) QDP 24.21/6.99 (3) QDPOrderProof [EQUIVALENT, 133 ms] 24.21/6.99 (4) QDP 24.21/6.99 (5) QDPOrderProof [EQUIVALENT, 0 ms] 24.21/6.99 (6) QDP 24.21/6.99 (7) PisEmptyProof [EQUIVALENT, 0 ms] 24.21/6.99 (8) YES 24.21/6.99 24.21/6.99 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (0) 24.21/6.99 Obligation: 24.21/6.99 Q restricted rewrite system: 24.21/6.99 The TRS R consists of the following rules: 24.21/6.99 24.21/6.99 a(x1) -> x1 24.21/6.99 a(x1) -> b(c(x1)) 24.21/6.99 a(b(b(x1))) -> b(b(a(a(x1)))) 24.21/6.99 24.21/6.99 Q is empty. 24.21/6.99 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (1) DependencyPairsProof (EQUIVALENT) 24.21/6.99 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (2) 24.21/6.99 Obligation: 24.21/6.99 Q DP problem: 24.21/6.99 The TRS P consists of the following rules: 24.21/6.99 24.21/6.99 A(b(b(x1))) -> A(a(x1)) 24.21/6.99 A(b(b(x1))) -> A(x1) 24.21/6.99 24.21/6.99 The TRS R consists of the following rules: 24.21/6.99 24.21/6.99 a(x1) -> x1 24.21/6.99 a(x1) -> b(c(x1)) 24.21/6.99 a(b(b(x1))) -> b(b(a(a(x1)))) 24.21/6.99 24.21/6.99 Q is empty. 24.21/6.99 We have to consider all minimal (P,Q,R)-chains. 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (3) QDPOrderProof (EQUIVALENT) 24.21/6.99 We use the reduction pair processor [LPAR04,JAR06]. 24.21/6.99 24.21/6.99 24.21/6.99 The following pairs can be oriented strictly and are deleted. 24.21/6.99 24.21/6.99 A(b(b(x1))) -> A(x1) 24.21/6.99 The remaining pairs can at least be oriented weakly. 24.21/6.99 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 24.21/6.99 24.21/6.99 <<< 24.21/6.99 POL(A(x_1)) = [[0A]] + [[-I, 1A, 1A]] * x_1 24.21/6.99 >>> 24.21/6.99 24.21/6.99 <<< 24.21/6.99 POL(b(x_1)) = [[-I], [-I], [0A]] + [[0A, 0A, 0A], [1A, 0A, -I], [0A, -I, 0A]] * x_1 24.21/6.99 >>> 24.21/6.99 24.21/6.99 <<< 24.21/6.99 POL(a(x_1)) = [[-I], [0A], [0A]] + [[0A, -I, -I], [1A, 0A, 0A], [1A, 0A, 0A]] * x_1 24.21/6.99 >>> 24.21/6.99 24.21/6.99 <<< 24.21/6.99 POL(c(x_1)) = [[-I], [-I], [-I]] + [[0A, -I, -I], [-I, -I, -I], [-I, -I, -I]] * x_1 24.21/6.99 >>> 24.21/6.99 24.21/6.99 24.21/6.99 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 24.21/6.99 24.21/6.99 a(x1) -> x1 24.21/6.99 a(x1) -> b(c(x1)) 24.21/6.99 a(b(b(x1))) -> b(b(a(a(x1)))) 24.21/6.99 24.21/6.99 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (4) 24.21/6.99 Obligation: 24.21/6.99 Q DP problem: 24.21/6.99 The TRS P consists of the following rules: 24.21/6.99 24.21/6.99 A(b(b(x1))) -> A(a(x1)) 24.21/6.99 24.21/6.99 The TRS R consists of the following rules: 24.21/6.99 24.21/6.99 a(x1) -> x1 24.21/6.99 a(x1) -> b(c(x1)) 24.21/6.99 a(b(b(x1))) -> b(b(a(a(x1)))) 24.21/6.99 24.21/6.99 Q is empty. 24.21/6.99 We have to consider all minimal (P,Q,R)-chains. 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (5) QDPOrderProof (EQUIVALENT) 24.21/6.99 We use the reduction pair processor [LPAR04,JAR06]. 24.21/6.99 24.21/6.99 24.21/6.99 The following pairs can be oriented strictly and are deleted. 24.21/6.99 24.21/6.99 A(b(b(x1))) -> A(a(x1)) 24.21/6.99 The remaining pairs can at least be oriented weakly. 24.21/6.99 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 24.21/6.99 24.21/6.99 <<< 24.21/6.99 POL(A(x_1)) = [[-I]] + [[0A, 1A, 0A]] * x_1 24.21/6.99 >>> 24.21/6.99 24.21/6.99 <<< 24.21/6.99 POL(b(x_1)) = [[1A], [0A], [0A]] + [[-I, 1A, 1A], [0A, -I, -I], [-I, 0A, -I]] * x_1 24.21/6.99 >>> 24.21/6.99 24.21/6.99 <<< 24.21/6.99 POL(a(x_1)) = [[1A], [0A], [0A]] + [[0A, 1A, 0A], [-I, 0A, -I], [-I, 0A, 0A]] * x_1 24.21/6.99 >>> 24.21/6.99 24.21/6.99 <<< 24.21/6.99 POL(c(x_1)) = [[0A], [0A], [0A]] + [[-I, 0A, -I], [-I, -I, -I], [-I, 0A, -I]] * x_1 24.21/6.99 >>> 24.21/6.99 24.21/6.99 24.21/6.99 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 24.21/6.99 24.21/6.99 a(x1) -> x1 24.21/6.99 a(x1) -> b(c(x1)) 24.21/6.99 a(b(b(x1))) -> b(b(a(a(x1)))) 24.21/6.99 24.21/6.99 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (6) 24.21/6.99 Obligation: 24.21/6.99 Q DP problem: 24.21/6.99 P is empty. 24.21/6.99 The TRS R consists of the following rules: 24.21/6.99 24.21/6.99 a(x1) -> x1 24.21/6.99 a(x1) -> b(c(x1)) 24.21/6.99 a(b(b(x1))) -> b(b(a(a(x1)))) 24.21/6.99 24.21/6.99 Q is empty. 24.21/6.99 We have to consider all minimal (P,Q,R)-chains. 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (7) PisEmptyProof (EQUIVALENT) 24.21/6.99 The TRS P is empty. Hence, there is no (P,Q,R) chain. 24.21/6.99 ---------------------------------------- 24.21/6.99 24.21/6.99 (8) 24.21/6.99 YES 24.52/7.10 EOF