45.07/12.41 YES 45.53/12.45 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 45.53/12.45 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 45.53/12.45 45.53/12.45 45.53/12.45 Termination w.r.t. Q of the given QTRS could be proven: 45.53/12.45 45.53/12.45 (0) QTRS 45.53/12.45 (1) QTRS Reverse [EQUIVALENT, 0 ms] 45.53/12.45 (2) QTRS 45.53/12.45 (3) DependencyPairsProof [EQUIVALENT, 10 ms] 45.53/12.45 (4) QDP 45.53/12.45 (5) DependencyGraphProof [EQUIVALENT, 1 ms] 45.53/12.45 (6) QDP 45.53/12.45 (7) QDPOrderProof [EQUIVALENT, 174 ms] 45.53/12.45 (8) QDP 45.53/12.45 (9) QDPOrderProof [EQUIVALENT, 35 ms] 45.53/12.45 (10) QDP 45.53/12.45 (11) PisEmptyProof [EQUIVALENT, 0 ms] 45.53/12.45 (12) YES 45.53/12.45 45.53/12.45 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (0) 45.53/12.45 Obligation: 45.53/12.45 Q restricted rewrite system: 45.53/12.45 The TRS R consists of the following rules: 45.53/12.45 45.53/12.45 a(x1) -> b(x1) 45.53/12.45 b(a(c(x1))) -> c(c(b(a(a(x1))))) 45.53/12.45 c(b(x1)) -> x1 45.53/12.45 45.53/12.45 Q is empty. 45.53/12.45 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (1) QTRS Reverse (EQUIVALENT) 45.53/12.45 We applied the QTRS Reverse Processor [REVERSE]. 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (2) 45.53/12.45 Obligation: 45.53/12.45 Q restricted rewrite system: 45.53/12.45 The TRS R consists of the following rules: 45.53/12.45 45.53/12.45 a(x1) -> b(x1) 45.53/12.45 c(a(b(x1))) -> a(a(b(c(c(x1))))) 45.53/12.45 b(c(x1)) -> x1 45.53/12.45 45.53/12.45 Q is empty. 45.53/12.45 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (3) DependencyPairsProof (EQUIVALENT) 45.53/12.45 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (4) 45.53/12.45 Obligation: 45.53/12.45 Q DP problem: 45.53/12.45 The TRS P consists of the following rules: 45.53/12.45 45.53/12.45 A(x1) -> B(x1) 45.53/12.45 C(a(b(x1))) -> A(a(b(c(c(x1))))) 45.53/12.45 C(a(b(x1))) -> A(b(c(c(x1)))) 45.53/12.45 C(a(b(x1))) -> B(c(c(x1))) 45.53/12.45 C(a(b(x1))) -> C(c(x1)) 45.53/12.45 C(a(b(x1))) -> C(x1) 45.53/12.45 45.53/12.45 The TRS R consists of the following rules: 45.53/12.45 45.53/12.45 a(x1) -> b(x1) 45.53/12.45 c(a(b(x1))) -> a(a(b(c(c(x1))))) 45.53/12.45 b(c(x1)) -> x1 45.53/12.45 45.53/12.45 Q is empty. 45.53/12.45 We have to consider all minimal (P,Q,R)-chains. 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (5) DependencyGraphProof (EQUIVALENT) 45.53/12.45 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 4 less nodes. 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (6) 45.53/12.45 Obligation: 45.53/12.45 Q DP problem: 45.53/12.45 The TRS P consists of the following rules: 45.53/12.45 45.53/12.45 C(a(b(x1))) -> C(x1) 45.53/12.45 C(a(b(x1))) -> C(c(x1)) 45.53/12.45 45.53/12.45 The TRS R consists of the following rules: 45.53/12.45 45.53/12.45 a(x1) -> b(x1) 45.53/12.45 c(a(b(x1))) -> a(a(b(c(c(x1))))) 45.53/12.45 b(c(x1)) -> x1 45.53/12.45 45.53/12.45 Q is empty. 45.53/12.45 We have to consider all minimal (P,Q,R)-chains. 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (7) QDPOrderProof (EQUIVALENT) 45.53/12.45 We use the reduction pair processor [LPAR04,JAR06]. 45.53/12.45 45.53/12.45 45.53/12.45 The following pairs can be oriented strictly and are deleted. 45.53/12.45 45.53/12.45 C(a(b(x1))) -> C(x1) 45.53/12.45 The remaining pairs can at least be oriented weakly. 45.53/12.45 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 45.53/12.45 45.53/12.45 <<< 45.53/12.45 POL(C(x_1)) = [[-I]] + [[0A, 0A, -I]] * x_1 45.53/12.45 >>> 45.53/12.45 45.53/12.45 <<< 45.53/12.45 POL(a(x_1)) = [[0A], [0A], [1A]] + [[0A, 0A, 0A], [1A, 0A, 0A], [0A, 0A, 0A]] * x_1 45.53/12.45 >>> 45.53/12.45 45.53/12.45 <<< 45.53/12.45 POL(b(x_1)) = [[-I], [-I], [0A]] + [[0A, 0A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 45.53/12.45 >>> 45.53/12.45 45.53/12.45 <<< 45.53/12.45 POL(c(x_1)) = [[0A], [0A], [0A]] + [[0A, 0A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 45.53/12.45 >>> 45.53/12.45 45.53/12.45 45.53/12.45 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 45.53/12.45 45.53/12.45 c(a(b(x1))) -> a(a(b(c(c(x1))))) 45.53/12.45 b(c(x1)) -> x1 45.53/12.45 a(x1) -> b(x1) 45.53/12.45 45.53/12.45 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (8) 45.53/12.45 Obligation: 45.53/12.45 Q DP problem: 45.53/12.45 The TRS P consists of the following rules: 45.53/12.45 45.53/12.45 C(a(b(x1))) -> C(c(x1)) 45.53/12.45 45.53/12.45 The TRS R consists of the following rules: 45.53/12.45 45.53/12.45 a(x1) -> b(x1) 45.53/12.45 c(a(b(x1))) -> a(a(b(c(c(x1))))) 45.53/12.45 b(c(x1)) -> x1 45.53/12.45 45.53/12.45 Q is empty. 45.53/12.45 We have to consider all minimal (P,Q,R)-chains. 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (9) QDPOrderProof (EQUIVALENT) 45.53/12.45 We use the reduction pair processor [LPAR04,JAR06]. 45.53/12.45 45.53/12.45 45.53/12.45 The following pairs can be oriented strictly and are deleted. 45.53/12.45 45.53/12.45 C(a(b(x1))) -> C(c(x1)) 45.53/12.45 The remaining pairs can at least be oriented weakly. 45.53/12.45 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 45.53/12.45 45.53/12.45 <<< 45.53/12.45 POL(C(x_1)) = [[-I]] + [[0A, 0A, 0A]] * x_1 45.53/12.45 >>> 45.53/12.45 45.53/12.45 <<< 45.53/12.45 POL(a(x_1)) = [[0A], [1A], [0A]] + [[0A, 0A, 0A], [1A, 0A, 0A], [0A, -I, 0A]] * x_1 45.53/12.45 >>> 45.53/12.45 45.53/12.45 <<< 45.53/12.45 POL(b(x_1)) = [[-I], [0A], [-I]] + [[0A, 0A, 0A], [0A, 0A, 0A], [0A, -I, 0A]] * x_1 45.53/12.45 >>> 45.53/12.45 45.53/12.45 <<< 45.53/12.45 POL(c(x_1)) = [[0A], [0A], [0A]] + [[0A, 0A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 45.53/12.45 >>> 45.53/12.45 45.53/12.45 45.53/12.45 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 45.53/12.45 45.53/12.45 c(a(b(x1))) -> a(a(b(c(c(x1))))) 45.53/12.45 b(c(x1)) -> x1 45.53/12.45 a(x1) -> b(x1) 45.53/12.45 45.53/12.45 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (10) 45.53/12.45 Obligation: 45.53/12.45 Q DP problem: 45.53/12.45 P is empty. 45.53/12.45 The TRS R consists of the following rules: 45.53/12.45 45.53/12.45 a(x1) -> b(x1) 45.53/12.45 c(a(b(x1))) -> a(a(b(c(c(x1))))) 45.53/12.45 b(c(x1)) -> x1 45.53/12.45 45.53/12.45 Q is empty. 45.53/12.45 We have to consider all minimal (P,Q,R)-chains. 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (11) PisEmptyProof (EQUIVALENT) 45.53/12.45 The TRS P is empty. Hence, there is no (P,Q,R) chain. 45.53/12.45 ---------------------------------------- 45.53/12.45 45.53/12.45 (12) 45.53/12.45 YES 45.79/12.58 EOF