44.19/12.14 YES 44.19/12.14 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 44.19/12.14 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 44.19/12.14 44.19/12.14 44.19/12.14 Termination w.r.t. Q of the given QTRS could be proven: 44.19/12.14 44.19/12.14 (0) QTRS 44.19/12.14 (1) DependencyPairsProof [EQUIVALENT, 4 ms] 44.19/12.14 (2) QDP 44.19/12.14 (3) QDPOrderProof [EQUIVALENT, 35 ms] 44.19/12.14 (4) QDP 44.19/12.14 (5) QDPOrderProof [EQUIVALENT, 54 ms] 44.19/12.14 (6) QDP 44.19/12.14 (7) QDPOrderProof [EQUIVALENT, 29 ms] 44.19/12.14 (8) QDP 44.19/12.14 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 44.19/12.14 (10) TRUE 44.19/12.14 44.19/12.14 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (0) 44.19/12.14 Obligation: 44.19/12.14 Q restricted rewrite system: 44.19/12.14 The TRS R consists of the following rules: 44.19/12.14 44.19/12.14 a(b(x1)) -> x1 44.19/12.14 a(c(x1)) -> b(c(a(a(x1)))) 44.19/12.14 c(b(x1)) -> a(c(x1)) 44.19/12.14 44.19/12.14 Q is empty. 44.19/12.14 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (1) DependencyPairsProof (EQUIVALENT) 44.19/12.14 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (2) 44.19/12.14 Obligation: 44.19/12.14 Q DP problem: 44.19/12.14 The TRS P consists of the following rules: 44.19/12.14 44.19/12.14 A(c(x1)) -> C(a(a(x1))) 44.19/12.14 A(c(x1)) -> A(a(x1)) 44.19/12.14 A(c(x1)) -> A(x1) 44.19/12.14 C(b(x1)) -> A(c(x1)) 44.19/12.14 C(b(x1)) -> C(x1) 44.19/12.14 44.19/12.14 The TRS R consists of the following rules: 44.19/12.14 44.19/12.14 a(b(x1)) -> x1 44.19/12.14 a(c(x1)) -> b(c(a(a(x1)))) 44.19/12.14 c(b(x1)) -> a(c(x1)) 44.19/12.14 44.19/12.14 Q is empty. 44.19/12.14 We have to consider all minimal (P,Q,R)-chains. 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (3) QDPOrderProof (EQUIVALENT) 44.19/12.14 We use the reduction pair processor [LPAR04,JAR06]. 44.19/12.14 44.19/12.14 44.19/12.14 The following pairs can be oriented strictly and are deleted. 44.19/12.14 44.19/12.14 A(c(x1)) -> A(a(x1)) 44.19/12.14 A(c(x1)) -> A(x1) 44.19/12.14 The remaining pairs can at least be oriented weakly. 44.19/12.14 Used ordering: Polynomial interpretation [POLO]: 44.19/12.14 44.19/12.14 POL(A(x_1)) = x_1 44.19/12.14 POL(C(x_1)) = 1 + x_1 44.19/12.14 POL(a(x_1)) = x_1 44.19/12.14 POL(b(x_1)) = x_1 44.19/12.14 POL(c(x_1)) = 1 + x_1 44.19/12.14 44.19/12.14 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 44.19/12.14 44.19/12.14 a(b(x1)) -> x1 44.19/12.14 a(c(x1)) -> b(c(a(a(x1)))) 44.19/12.14 c(b(x1)) -> a(c(x1)) 44.19/12.14 44.19/12.14 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (4) 44.19/12.14 Obligation: 44.19/12.14 Q DP problem: 44.19/12.14 The TRS P consists of the following rules: 44.19/12.14 44.19/12.14 A(c(x1)) -> C(a(a(x1))) 44.19/12.14 C(b(x1)) -> A(c(x1)) 44.19/12.14 C(b(x1)) -> C(x1) 44.19/12.14 44.19/12.14 The TRS R consists of the following rules: 44.19/12.14 44.19/12.14 a(b(x1)) -> x1 44.19/12.14 a(c(x1)) -> b(c(a(a(x1)))) 44.19/12.14 c(b(x1)) -> a(c(x1)) 44.19/12.14 44.19/12.14 Q is empty. 44.19/12.14 We have to consider all minimal (P,Q,R)-chains. 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (5) QDPOrderProof (EQUIVALENT) 44.19/12.14 We use the reduction pair processor [LPAR04,JAR06]. 44.19/12.14 44.19/12.14 44.19/12.14 The following pairs can be oriented strictly and are deleted. 44.19/12.14 44.19/12.14 C(b(x1)) -> C(x1) 44.19/12.14 The remaining pairs can at least be oriented weakly. 44.19/12.14 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(A(x_1)) = [[1A]] + [[0A, 0A, 0A]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(c(x_1)) = [[0A], [0A], [-I]] + [[0A, 0A, -I], [0A, 0A, 1A], [-I, -I, 0A]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(C(x_1)) = [[0A]] + [[0A, 0A, 1A]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(a(x_1)) = [[0A], [-I], [-I]] + [[-I, 0A, 0A], [-I, -I, 0A], [-I, 0A, -I]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(b(x_1)) = [[0A], [-I], [0A]] + [[0A, 0A, 1A], [-I, -I, 0A], [0A, 0A, 1A]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 44.19/12.14 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 44.19/12.14 44.19/12.14 a(b(x1)) -> x1 44.19/12.14 a(c(x1)) -> b(c(a(a(x1)))) 44.19/12.14 c(b(x1)) -> a(c(x1)) 44.19/12.14 44.19/12.14 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (6) 44.19/12.14 Obligation: 44.19/12.14 Q DP problem: 44.19/12.14 The TRS P consists of the following rules: 44.19/12.14 44.19/12.14 A(c(x1)) -> C(a(a(x1))) 44.19/12.14 C(b(x1)) -> A(c(x1)) 44.19/12.14 44.19/12.14 The TRS R consists of the following rules: 44.19/12.14 44.19/12.14 a(b(x1)) -> x1 44.19/12.14 a(c(x1)) -> b(c(a(a(x1)))) 44.19/12.14 c(b(x1)) -> a(c(x1)) 44.19/12.14 44.19/12.14 Q is empty. 44.19/12.14 We have to consider all minimal (P,Q,R)-chains. 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (7) QDPOrderProof (EQUIVALENT) 44.19/12.14 We use the reduction pair processor [LPAR04,JAR06]. 44.19/12.14 44.19/12.14 44.19/12.14 The following pairs can be oriented strictly and are deleted. 44.19/12.14 44.19/12.14 A(c(x1)) -> C(a(a(x1))) 44.19/12.14 The remaining pairs can at least be oriented weakly. 44.19/12.14 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(A(x_1)) = [[-I]] + [[0A, -I, 0A]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(c(x_1)) = [[1A], [-I], [0A]] + [[0A, 1A, 1A], [-I, -I, -I], [-I, 0A, 0A]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(C(x_1)) = [[0A]] + [[-I, 0A, 0A]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(a(x_1)) = [[0A], [-I], [0A]] + [[-I, 0A, 0A], [-I, 0A, -I], [0A, 0A, -I]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 <<< 44.19/12.14 POL(b(x_1)) = [[0A], [-I], [1A]] + [[-I, 0A, 0A], [-I, 1A, -I], [0A, 0A, 1A]] * x_1 44.19/12.14 >>> 44.19/12.14 44.19/12.14 44.19/12.14 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 44.19/12.14 44.19/12.14 a(b(x1)) -> x1 44.19/12.14 a(c(x1)) -> b(c(a(a(x1)))) 44.19/12.14 c(b(x1)) -> a(c(x1)) 44.19/12.14 44.19/12.14 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (8) 44.19/12.14 Obligation: 44.19/12.14 Q DP problem: 44.19/12.14 The TRS P consists of the following rules: 44.19/12.14 44.19/12.14 C(b(x1)) -> A(c(x1)) 44.19/12.14 44.19/12.14 The TRS R consists of the following rules: 44.19/12.14 44.19/12.14 a(b(x1)) -> x1 44.19/12.14 a(c(x1)) -> b(c(a(a(x1)))) 44.19/12.14 c(b(x1)) -> a(c(x1)) 44.19/12.14 44.19/12.14 Q is empty. 44.19/12.14 We have to consider all minimal (P,Q,R)-chains. 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (9) DependencyGraphProof (EQUIVALENT) 44.19/12.14 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node. 44.19/12.14 ---------------------------------------- 44.19/12.14 44.19/12.14 (10) 44.19/12.14 TRUE 44.61/12.33 EOF