43.12/11.93 YES 43.79/12.06 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 43.79/12.06 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 43.79/12.06 43.79/12.06 43.79/12.06 Termination w.r.t. Q of the given QTRS could be proven: 43.79/12.06 43.79/12.06 (0) QTRS 43.79/12.06 (1) DependencyPairsProof [EQUIVALENT, 6 ms] 43.79/12.06 (2) QDP 43.79/12.06 (3) QDPOrderProof [EQUIVALENT, 29 ms] 43.79/12.06 (4) QDP 43.79/12.06 (5) QDPOrderProof [EQUIVALENT, 77 ms] 43.79/12.06 (6) QDP 43.79/12.06 (7) DependencyGraphProof [EQUIVALENT, 0 ms] 43.79/12.06 (8) QDP 43.79/12.06 (9) QDPOrderProof [EQUIVALENT, 26 ms] 43.79/12.06 (10) QDP 43.79/12.06 (11) DependencyGraphProof [EQUIVALENT, 0 ms] 43.79/12.06 (12) TRUE 43.79/12.06 43.79/12.06 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (0) 43.79/12.06 Obligation: 43.79/12.06 Q restricted rewrite system: 43.79/12.06 The TRS R consists of the following rules: 43.79/12.06 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 43.79/12.06 Q is empty. 43.79/12.06 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (1) DependencyPairsProof (EQUIVALENT) 43.79/12.06 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (2) 43.79/12.06 Obligation: 43.79/12.06 Q DP problem: 43.79/12.06 The TRS P consists of the following rules: 43.79/12.06 43.79/12.06 A(x1) -> B(c(x1)) 43.79/12.06 A(x1) -> C(x1) 43.79/12.06 B(a(b(x1))) -> C(x1) 43.79/12.06 C(c(x1)) -> A(a(b(x1))) 43.79/12.06 C(c(x1)) -> A(b(x1)) 43.79/12.06 C(c(x1)) -> B(x1) 43.79/12.06 43.79/12.06 The TRS R consists of the following rules: 43.79/12.06 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 43.79/12.06 Q is empty. 43.79/12.06 We have to consider all minimal (P,Q,R)-chains. 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (3) QDPOrderProof (EQUIVALENT) 43.79/12.06 We use the reduction pair processor [LPAR04,JAR06]. 43.79/12.06 43.79/12.06 43.79/12.06 The following pairs can be oriented strictly and are deleted. 43.79/12.06 43.79/12.06 C(c(x1)) -> A(b(x1)) 43.79/12.06 C(c(x1)) -> B(x1) 43.79/12.06 The remaining pairs can at least be oriented weakly. 43.79/12.06 Used ordering: Polynomial interpretation [POLO]: 43.79/12.06 43.79/12.06 POL(A(x_1)) = 1 + x_1 43.79/12.06 POL(B(x_1)) = x_1 43.79/12.06 POL(C(x_1)) = 1 + x_1 43.79/12.06 POL(a(x_1)) = 1 + x_1 43.79/12.06 POL(b(x_1)) = x_1 43.79/12.06 POL(c(x_1)) = 1 + x_1 43.79/12.06 43.79/12.06 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 43.79/12.06 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 43.79/12.06 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (4) 43.79/12.06 Obligation: 43.79/12.06 Q DP problem: 43.79/12.06 The TRS P consists of the following rules: 43.79/12.06 43.79/12.06 A(x1) -> B(c(x1)) 43.79/12.06 A(x1) -> C(x1) 43.79/12.06 B(a(b(x1))) -> C(x1) 43.79/12.06 C(c(x1)) -> A(a(b(x1))) 43.79/12.06 43.79/12.06 The TRS R consists of the following rules: 43.79/12.06 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 43.79/12.06 Q is empty. 43.79/12.06 We have to consider all minimal (P,Q,R)-chains. 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (5) QDPOrderProof (EQUIVALENT) 43.79/12.06 We use the reduction pair processor [LPAR04,JAR06]. 43.79/12.06 43.79/12.06 43.79/12.06 The following pairs can be oriented strictly and are deleted. 43.79/12.06 43.79/12.06 A(x1) -> B(c(x1)) 43.79/12.06 The remaining pairs can at least be oriented weakly. 43.79/12.06 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(A(x_1)) = [[1A]] + [[0A, 0A, 1A]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(B(x_1)) = [[0A]] + [[-I, 0A, -I]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(c(x_1)) = [[0A], [0A], [1A]] + [[0A, 1A, 1A], [-I, -I, 0A], [0A, 1A, 0A]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(C(x_1)) = [[1A]] + [[0A, -I, -I]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(a(x_1)) = [[1A], [0A], [0A]] + [[0A, 1A, 1A], [0A, 0A, 0A], [-I, 0A, 0A]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(b(x_1)) = [[1A], [0A], [0A]] + [[0A, 1A, 0A], [-I, 0A, -I], [-I, 0A, -I]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 43.79/12.06 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 43.79/12.06 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 43.79/12.06 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (6) 43.79/12.06 Obligation: 43.79/12.06 Q DP problem: 43.79/12.06 The TRS P consists of the following rules: 43.79/12.06 43.79/12.06 A(x1) -> C(x1) 43.79/12.06 B(a(b(x1))) -> C(x1) 43.79/12.06 C(c(x1)) -> A(a(b(x1))) 43.79/12.06 43.79/12.06 The TRS R consists of the following rules: 43.79/12.06 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 43.79/12.06 Q is empty. 43.79/12.06 We have to consider all minimal (P,Q,R)-chains. 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (7) DependencyGraphProof (EQUIVALENT) 43.79/12.06 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 1 less node. 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (8) 43.79/12.06 Obligation: 43.79/12.06 Q DP problem: 43.79/12.06 The TRS P consists of the following rules: 43.79/12.06 43.79/12.06 C(c(x1)) -> A(a(b(x1))) 43.79/12.06 A(x1) -> C(x1) 43.79/12.06 43.79/12.06 The TRS R consists of the following rules: 43.79/12.06 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 43.79/12.06 Q is empty. 43.79/12.06 We have to consider all minimal (P,Q,R)-chains. 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (9) QDPOrderProof (EQUIVALENT) 43.79/12.06 We use the reduction pair processor [LPAR04,JAR06]. 43.79/12.06 43.79/12.06 43.79/12.06 The following pairs can be oriented strictly and are deleted. 43.79/12.06 43.79/12.06 A(x1) -> C(x1) 43.79/12.06 The remaining pairs can at least be oriented weakly. 43.79/12.06 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(C(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(c(x_1)) = [[0A], [0A], [1A]] + [[-I, -I, 0A], [0A, 0A, 1A], [1A, 0A, 0A]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(A(x_1)) = [[1A]] + [[0A, 0A, 1A]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(a(x_1)) = [[1A], [1A], [0A]] + [[0A, 0A, 0A], [1A, 0A, 1A], [0A, -I, 0A]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 <<< 43.79/12.06 POL(b(x_1)) = [[-I], [0A], [0A]] + [[0A, -I, -I], [1A, 0A, 0A], [0A, -I, -I]] * x_1 43.79/12.06 >>> 43.79/12.06 43.79/12.06 43.79/12.06 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 43.79/12.06 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 43.79/12.06 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (10) 43.79/12.06 Obligation: 43.79/12.06 Q DP problem: 43.79/12.06 The TRS P consists of the following rules: 43.79/12.06 43.79/12.06 C(c(x1)) -> A(a(b(x1))) 43.79/12.06 43.79/12.06 The TRS R consists of the following rules: 43.79/12.06 43.79/12.06 a(x1) -> b(c(x1)) 43.79/12.06 b(a(b(x1))) -> c(x1) 43.79/12.06 c(c(x1)) -> a(a(b(x1))) 43.79/12.06 43.79/12.06 Q is empty. 43.79/12.06 We have to consider all minimal (P,Q,R)-chains. 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (11) DependencyGraphProof (EQUIVALENT) 43.79/12.06 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node. 43.79/12.06 ---------------------------------------- 43.79/12.06 43.79/12.06 (12) 43.79/12.06 TRUE 44.07/12.16 EOF