41.75/11.58 YES 42.15/11.71 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 42.15/11.71 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 42.15/11.71 42.15/11.71 42.15/11.71 Termination w.r.t. Q of the given QTRS could be proven: 42.15/11.71 42.15/11.71 (0) QTRS 42.15/11.71 (1) QTRS Reverse [EQUIVALENT, 0 ms] 42.15/11.71 (2) QTRS 42.15/11.71 (3) DependencyPairsProof [EQUIVALENT, 12 ms] 42.15/11.71 (4) QDP 42.15/11.71 (5) DependencyGraphProof [EQUIVALENT, 1 ms] 42.15/11.71 (6) QDP 42.15/11.71 (7) QDPOrderProof [EQUIVALENT, 142 ms] 42.15/11.71 (8) QDP 42.15/11.71 (9) QDPOrderProof [EQUIVALENT, 48 ms] 42.15/11.71 (10) QDP 42.15/11.71 (11) DependencyGraphProof [EQUIVALENT, 0 ms] 42.15/11.71 (12) TRUE 42.15/11.71 42.15/11.71 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (0) 42.15/11.71 Obligation: 42.15/11.71 Q restricted rewrite system: 42.15/11.71 The TRS R consists of the following rules: 42.15/11.71 42.15/11.71 a(x1) -> x1 42.15/11.71 a(a(b(b(x1)))) -> b(c(a(c(x1)))) 42.15/11.71 c(x1) -> b(a(x1)) 42.15/11.71 42.15/11.71 Q is empty. 42.15/11.71 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (1) QTRS Reverse (EQUIVALENT) 42.15/11.71 We applied the QTRS Reverse Processor [REVERSE]. 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (2) 42.15/11.71 Obligation: 42.15/11.71 Q restricted rewrite system: 42.15/11.71 The TRS R consists of the following rules: 42.15/11.71 42.15/11.71 a(x1) -> x1 42.15/11.71 b(b(a(a(x1)))) -> c(a(c(b(x1)))) 42.15/11.71 c(x1) -> a(b(x1)) 42.15/11.71 42.15/11.71 Q is empty. 42.15/11.71 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (3) DependencyPairsProof (EQUIVALENT) 42.15/11.71 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (4) 42.15/11.71 Obligation: 42.15/11.71 Q DP problem: 42.15/11.71 The TRS P consists of the following rules: 42.15/11.71 42.15/11.71 B(b(a(a(x1)))) -> C(a(c(b(x1)))) 42.15/11.71 B(b(a(a(x1)))) -> A(c(b(x1))) 42.15/11.71 B(b(a(a(x1)))) -> C(b(x1)) 42.15/11.71 B(b(a(a(x1)))) -> B(x1) 42.15/11.71 C(x1) -> A(b(x1)) 42.15/11.71 C(x1) -> B(x1) 42.15/11.71 42.15/11.71 The TRS R consists of the following rules: 42.15/11.71 42.15/11.71 a(x1) -> x1 42.15/11.71 b(b(a(a(x1)))) -> c(a(c(b(x1)))) 42.15/11.71 c(x1) -> a(b(x1)) 42.15/11.71 42.15/11.71 Q is empty. 42.15/11.71 We have to consider all minimal (P,Q,R)-chains. 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (5) DependencyGraphProof (EQUIVALENT) 42.15/11.71 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 2 less nodes. 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (6) 42.15/11.71 Obligation: 42.15/11.71 Q DP problem: 42.15/11.71 The TRS P consists of the following rules: 42.15/11.71 42.15/11.71 C(x1) -> B(x1) 42.15/11.71 B(b(a(a(x1)))) -> C(a(c(b(x1)))) 42.15/11.71 B(b(a(a(x1)))) -> C(b(x1)) 42.15/11.71 B(b(a(a(x1)))) -> B(x1) 42.15/11.71 42.15/11.71 The TRS R consists of the following rules: 42.15/11.71 42.15/11.71 a(x1) -> x1 42.15/11.71 b(b(a(a(x1)))) -> c(a(c(b(x1)))) 42.15/11.71 c(x1) -> a(b(x1)) 42.15/11.71 42.15/11.71 Q is empty. 42.15/11.71 We have to consider all minimal (P,Q,R)-chains. 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (7) QDPOrderProof (EQUIVALENT) 42.15/11.71 We use the reduction pair processor [LPAR04,JAR06]. 42.15/11.71 42.15/11.71 42.15/11.71 The following pairs can be oriented strictly and are deleted. 42.15/11.71 42.15/11.71 B(b(a(a(x1)))) -> B(x1) 42.15/11.71 The remaining pairs can at least be oriented weakly. 42.15/11.71 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(C(x_1)) = [[1A]] + [[-I, -I, 0A]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(B(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(b(x_1)) = [[0A], [-I], [-I]] + [[-I, -I, 0A], [0A, -I, 0A], [-I, 0A, 0A]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(a(x_1)) = [[0A], [-I], [-I]] + [[0A, 0A, 0A], [1A, 0A, 0A], [-I, -I, 0A]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(c(x_1)) = [[0A], [1A], [-I]] + [[0A, 0A, 0A], [0A, 0A, 1A], [-I, 0A, 0A]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 42.15/11.71 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 42.15/11.71 42.15/11.71 b(b(a(a(x1)))) -> c(a(c(b(x1)))) 42.15/11.71 c(x1) -> a(b(x1)) 42.15/11.71 a(x1) -> x1 42.15/11.71 42.15/11.71 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (8) 42.15/11.71 Obligation: 42.15/11.71 Q DP problem: 42.15/11.71 The TRS P consists of the following rules: 42.15/11.71 42.15/11.71 C(x1) -> B(x1) 42.15/11.71 B(b(a(a(x1)))) -> C(a(c(b(x1)))) 42.15/11.71 B(b(a(a(x1)))) -> C(b(x1)) 42.15/11.71 42.15/11.71 The TRS R consists of the following rules: 42.15/11.71 42.15/11.71 a(x1) -> x1 42.15/11.71 b(b(a(a(x1)))) -> c(a(c(b(x1)))) 42.15/11.71 c(x1) -> a(b(x1)) 42.15/11.71 42.15/11.71 Q is empty. 42.15/11.71 We have to consider all minimal (P,Q,R)-chains. 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (9) QDPOrderProof (EQUIVALENT) 42.15/11.71 We use the reduction pair processor [LPAR04,JAR06]. 42.15/11.71 42.15/11.71 42.15/11.71 The following pairs can be oriented strictly and are deleted. 42.15/11.71 42.15/11.71 C(x1) -> B(x1) 42.15/11.71 The remaining pairs can at least be oriented weakly. 42.15/11.71 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(C(x_1)) = [[1A]] + [[1A, 0A, 0A]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(B(x_1)) = [[0A]] + [[0A, -I, -I]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(b(x_1)) = [[-I], [0A], [-I]] + [[0A, -I, 0A], [0A, -I, -I], [0A, 0A, -I]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(a(x_1)) = [[-I], [0A], [-I]] + [[0A, -I, -I], [0A, 0A, 0A], [0A, 1A, 0A]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 <<< 42.15/11.71 POL(c(x_1)) = [[-I], [0A], [1A]] + [[0A, -I, 0A], [0A, 0A, 0A], [1A, 0A, 0A]] * x_1 42.15/11.71 >>> 42.15/11.71 42.15/11.71 42.15/11.71 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 42.15/11.71 42.15/11.71 b(b(a(a(x1)))) -> c(a(c(b(x1)))) 42.15/11.71 c(x1) -> a(b(x1)) 42.15/11.71 a(x1) -> x1 42.15/11.71 42.15/11.71 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (10) 42.15/11.71 Obligation: 42.15/11.71 Q DP problem: 42.15/11.71 The TRS P consists of the following rules: 42.15/11.71 42.15/11.71 B(b(a(a(x1)))) -> C(a(c(b(x1)))) 42.15/11.71 B(b(a(a(x1)))) -> C(b(x1)) 42.15/11.71 42.15/11.71 The TRS R consists of the following rules: 42.15/11.71 42.15/11.71 a(x1) -> x1 42.15/11.71 b(b(a(a(x1)))) -> c(a(c(b(x1)))) 42.15/11.71 c(x1) -> a(b(x1)) 42.15/11.71 42.15/11.71 Q is empty. 42.15/11.71 We have to consider all minimal (P,Q,R)-chains. 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (11) DependencyGraphProof (EQUIVALENT) 42.15/11.71 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 2 less nodes. 42.15/11.71 ---------------------------------------- 42.15/11.71 42.15/11.71 (12) 42.15/11.71 TRUE 42.52/11.80 EOF