33.60/9.49 YES 33.98/9.57 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 33.98/9.57 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 33.98/9.57 33.98/9.57 33.98/9.57 Termination w.r.t. Q of the given QTRS could be proven: 33.98/9.57 33.98/9.57 (0) QTRS 33.98/9.57 (1) QTRS Reverse [EQUIVALENT, 0 ms] 33.98/9.57 (2) QTRS 33.98/9.57 (3) DependencyPairsProof [EQUIVALENT, 0 ms] 33.98/9.57 (4) QDP 33.98/9.57 (5) DependencyGraphProof [EQUIVALENT, 0 ms] 33.98/9.57 (6) QDP 33.98/9.57 (7) QDPOrderProof [EQUIVALENT, 143 ms] 33.98/9.57 (8) QDP 33.98/9.57 (9) QDPOrderProof [EQUIVALENT, 76 ms] 33.98/9.57 (10) QDP 33.98/9.57 (11) DependencyGraphProof [EQUIVALENT, 0 ms] 33.98/9.57 (12) TRUE 33.98/9.57 33.98/9.57 33.98/9.57 ---------------------------------------- 33.98/9.57 33.98/9.57 (0) 33.98/9.57 Obligation: 33.98/9.57 Q restricted rewrite system: 33.98/9.57 The TRS R consists of the following rules: 33.98/9.57 33.98/9.57 a(x1) -> x1 33.98/9.57 a(a(b(x1))) -> c(c(a(c(x1)))) 33.98/9.57 c(c(x1)) -> b(a(x1)) 33.98/9.57 33.98/9.57 Q is empty. 33.98/9.57 33.98/9.57 ---------------------------------------- 33.98/9.57 33.98/9.57 (1) QTRS Reverse (EQUIVALENT) 33.98/9.57 We applied the QTRS Reverse Processor [REVERSE]. 33.98/9.57 ---------------------------------------- 33.98/9.57 33.98/9.57 (2) 33.98/9.57 Obligation: 33.98/9.57 Q restricted rewrite system: 33.98/9.57 The TRS R consists of the following rules: 33.98/9.57 33.98/9.57 a(x1) -> x1 33.98/9.57 b(a(a(x1))) -> c(a(c(c(x1)))) 33.98/9.58 c(c(x1)) -> a(b(x1)) 33.98/9.58 33.98/9.58 Q is empty. 33.98/9.58 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (3) DependencyPairsProof (EQUIVALENT) 33.98/9.58 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (4) 33.98/9.58 Obligation: 33.98/9.58 Q DP problem: 33.98/9.58 The TRS P consists of the following rules: 33.98/9.58 33.98/9.58 B(a(a(x1))) -> C(a(c(c(x1)))) 33.98/9.58 B(a(a(x1))) -> A(c(c(x1))) 33.98/9.58 B(a(a(x1))) -> C(c(x1)) 33.98/9.58 B(a(a(x1))) -> C(x1) 33.98/9.58 C(c(x1)) -> A(b(x1)) 33.98/9.58 C(c(x1)) -> B(x1) 33.98/9.58 33.98/9.58 The TRS R consists of the following rules: 33.98/9.58 33.98/9.58 a(x1) -> x1 33.98/9.58 b(a(a(x1))) -> c(a(c(c(x1)))) 33.98/9.58 c(c(x1)) -> a(b(x1)) 33.98/9.58 33.98/9.58 Q is empty. 33.98/9.58 We have to consider all minimal (P,Q,R)-chains. 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (5) DependencyGraphProof (EQUIVALENT) 33.98/9.58 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 2 less nodes. 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (6) 33.98/9.58 Obligation: 33.98/9.58 Q DP problem: 33.98/9.58 The TRS P consists of the following rules: 33.98/9.58 33.98/9.58 C(c(x1)) -> B(x1) 33.98/9.58 B(a(a(x1))) -> C(a(c(c(x1)))) 33.98/9.58 B(a(a(x1))) -> C(c(x1)) 33.98/9.58 B(a(a(x1))) -> C(x1) 33.98/9.58 33.98/9.58 The TRS R consists of the following rules: 33.98/9.58 33.98/9.58 a(x1) -> x1 33.98/9.58 b(a(a(x1))) -> c(a(c(c(x1)))) 33.98/9.58 c(c(x1)) -> a(b(x1)) 33.98/9.58 33.98/9.58 Q is empty. 33.98/9.58 We have to consider all minimal (P,Q,R)-chains. 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (7) QDPOrderProof (EQUIVALENT) 33.98/9.58 We use the reduction pair processor [LPAR04,JAR06]. 33.98/9.58 33.98/9.58 33.98/9.58 The following pairs can be oriented strictly and are deleted. 33.98/9.58 33.98/9.58 B(a(a(x1))) -> C(x1) 33.98/9.58 The remaining pairs can at least be oriented weakly. 33.98/9.58 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(C(x_1)) = [[-I]] + [[0A, -I, 0A]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(c(x_1)) = [[-I], [0A], [0A]] + [[0A, 0A, -I], [1A, 0A, 0A], [1A, -I, -I]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(B(x_1)) = [[0A]] + [[1A, -I, -I]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(a(x_1)) = [[-I], [0A], [-I]] + [[0A, -I, 0A], [1A, 1A, 0A], [0A, 0A, 0A]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(b(x_1)) = [[-I], [-I], [0A]] + [[0A, 0A, -I], [0A, 0A, -I], [0A, 0A, -I]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 33.98/9.58 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 33.98/9.58 33.98/9.58 c(c(x1)) -> a(b(x1)) 33.98/9.58 a(x1) -> x1 33.98/9.58 b(a(a(x1))) -> c(a(c(c(x1)))) 33.98/9.58 33.98/9.58 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (8) 33.98/9.58 Obligation: 33.98/9.58 Q DP problem: 33.98/9.58 The TRS P consists of the following rules: 33.98/9.58 33.98/9.58 C(c(x1)) -> B(x1) 33.98/9.58 B(a(a(x1))) -> C(a(c(c(x1)))) 33.98/9.58 B(a(a(x1))) -> C(c(x1)) 33.98/9.58 33.98/9.58 The TRS R consists of the following rules: 33.98/9.58 33.98/9.58 a(x1) -> x1 33.98/9.58 b(a(a(x1))) -> c(a(c(c(x1)))) 33.98/9.58 c(c(x1)) -> a(b(x1)) 33.98/9.58 33.98/9.58 Q is empty. 33.98/9.58 We have to consider all minimal (P,Q,R)-chains. 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (9) QDPOrderProof (EQUIVALENT) 33.98/9.58 We use the reduction pair processor [LPAR04,JAR06]. 33.98/9.58 33.98/9.58 33.98/9.58 The following pairs can be oriented strictly and are deleted. 33.98/9.58 33.98/9.58 C(c(x1)) -> B(x1) 33.98/9.58 The remaining pairs can at least be oriented weakly. 33.98/9.58 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(C(x_1)) = [[-I]] + [[0A, -I, 0A]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(c(x_1)) = [[0A], [0A], [1A]] + [[0A, 1A, 0A], [-I, 0A, -I], [0A, 0A, 0A]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(B(x_1)) = [[0A]] + [[-I, 0A, -I]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(a(x_1)) = [[0A], [-I], [1A]] + [[0A, 0A, 0A], [-I, 0A, 0A], [0A, 1A, 0A]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 <<< 33.98/9.58 POL(b(x_1)) = [[0A], [-I], [0A]] + [[0A, 1A, 0A], [-I, 0A, -I], [-I, 0A, -I]] * x_1 33.98/9.58 >>> 33.98/9.58 33.98/9.58 33.98/9.58 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 33.98/9.58 33.98/9.58 c(c(x1)) -> a(b(x1)) 33.98/9.58 a(x1) -> x1 33.98/9.58 b(a(a(x1))) -> c(a(c(c(x1)))) 33.98/9.58 33.98/9.58 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (10) 33.98/9.58 Obligation: 33.98/9.58 Q DP problem: 33.98/9.58 The TRS P consists of the following rules: 33.98/9.58 33.98/9.58 B(a(a(x1))) -> C(a(c(c(x1)))) 33.98/9.58 B(a(a(x1))) -> C(c(x1)) 33.98/9.58 33.98/9.58 The TRS R consists of the following rules: 33.98/9.58 33.98/9.58 a(x1) -> x1 33.98/9.58 b(a(a(x1))) -> c(a(c(c(x1)))) 33.98/9.58 c(c(x1)) -> a(b(x1)) 33.98/9.58 33.98/9.58 Q is empty. 33.98/9.58 We have to consider all minimal (P,Q,R)-chains. 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (11) DependencyGraphProof (EQUIVALENT) 33.98/9.58 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 2 less nodes. 33.98/9.58 ---------------------------------------- 33.98/9.58 33.98/9.58 (12) 33.98/9.58 TRUE 34.36/9.84 EOF