14.15/4.41 YES 14.57/4.52 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 14.57/4.52 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 14.57/4.52 14.57/4.52 14.57/4.52 Termination w.r.t. Q of the given QTRS could be proven: 14.57/4.52 14.57/4.52 (0) QTRS 14.57/4.52 (1) QTRS Reverse [EQUIVALENT, 0 ms] 14.57/4.52 (2) QTRS 14.57/4.52 (3) DependencyPairsProof [EQUIVALENT, 5 ms] 14.57/4.52 (4) QDP 14.57/4.52 (5) DependencyGraphProof [EQUIVALENT, 0 ms] 14.57/4.52 (6) QDP 14.57/4.52 (7) QDPOrderProof [EQUIVALENT, 129 ms] 14.57/4.52 (8) QDP 14.57/4.52 (9) PisEmptyProof [EQUIVALENT, 0 ms] 14.57/4.52 (10) YES 14.57/4.52 14.57/4.52 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (0) 14.57/4.52 Obligation: 14.57/4.52 Q restricted rewrite system: 14.57/4.52 The TRS R consists of the following rules: 14.57/4.52 14.57/4.52 a(x1) -> b(x1) 14.57/4.52 a(c(x1)) -> c(c(c(a(a(b(x1)))))) 14.57/4.52 b(b(x1)) -> x1 14.57/4.52 14.57/4.52 Q is empty. 14.57/4.52 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (1) QTRS Reverse (EQUIVALENT) 14.57/4.52 We applied the QTRS Reverse Processor [REVERSE]. 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (2) 14.57/4.52 Obligation: 14.57/4.52 Q restricted rewrite system: 14.57/4.52 The TRS R consists of the following rules: 14.57/4.52 14.57/4.52 a(x1) -> b(x1) 14.57/4.52 c(a(x1)) -> b(a(a(c(c(c(x1)))))) 14.57/4.52 b(b(x1)) -> x1 14.57/4.52 14.57/4.52 Q is empty. 14.57/4.52 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (3) DependencyPairsProof (EQUIVALENT) 14.57/4.52 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (4) 14.57/4.52 Obligation: 14.57/4.52 Q DP problem: 14.57/4.52 The TRS P consists of the following rules: 14.57/4.52 14.57/4.52 A(x1) -> B(x1) 14.57/4.52 C(a(x1)) -> B(a(a(c(c(c(x1)))))) 14.57/4.52 C(a(x1)) -> A(a(c(c(c(x1))))) 14.57/4.52 C(a(x1)) -> A(c(c(c(x1)))) 14.57/4.52 C(a(x1)) -> C(c(c(x1))) 14.57/4.52 C(a(x1)) -> C(c(x1)) 14.57/4.52 C(a(x1)) -> C(x1) 14.57/4.52 14.57/4.52 The TRS R consists of the following rules: 14.57/4.52 14.57/4.52 a(x1) -> b(x1) 14.57/4.52 c(a(x1)) -> b(a(a(c(c(c(x1)))))) 14.57/4.52 b(b(x1)) -> x1 14.57/4.52 14.57/4.52 Q is empty. 14.57/4.52 We have to consider all minimal (P,Q,R)-chains. 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (5) DependencyGraphProof (EQUIVALENT) 14.57/4.52 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 4 less nodes. 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (6) 14.57/4.52 Obligation: 14.57/4.52 Q DP problem: 14.57/4.52 The TRS P consists of the following rules: 14.57/4.52 14.57/4.52 C(a(x1)) -> C(c(x1)) 14.57/4.52 C(a(x1)) -> C(c(c(x1))) 14.57/4.52 C(a(x1)) -> C(x1) 14.57/4.52 14.57/4.52 The TRS R consists of the following rules: 14.57/4.52 14.57/4.52 a(x1) -> b(x1) 14.57/4.52 c(a(x1)) -> b(a(a(c(c(c(x1)))))) 14.57/4.52 b(b(x1)) -> x1 14.57/4.52 14.57/4.52 Q is empty. 14.57/4.52 We have to consider all minimal (P,Q,R)-chains. 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (7) QDPOrderProof (EQUIVALENT) 14.57/4.52 We use the reduction pair processor [LPAR04,JAR06]. 14.57/4.52 14.57/4.52 14.57/4.52 The following pairs can be oriented strictly and are deleted. 14.57/4.52 14.57/4.52 C(a(x1)) -> C(c(x1)) 14.57/4.52 C(a(x1)) -> C(c(c(x1))) 14.57/4.52 C(a(x1)) -> C(x1) 14.57/4.52 The remaining pairs can at least be oriented weakly. 14.57/4.52 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 14.57/4.52 14.57/4.52 <<< 14.57/4.52 POL(C(x_1)) = [[0A]] + [[0A, 0A, -I]] * x_1 14.57/4.52 >>> 14.57/4.52 14.57/4.52 <<< 14.57/4.52 POL(a(x_1)) = [[1A], [0A], [0A]] + [[0A, 0A, -I], [1A, 1A, 0A], [0A, 0A, 0A]] * x_1 14.57/4.52 >>> 14.57/4.52 14.57/4.52 <<< 14.57/4.52 POL(c(x_1)) = [[0A], [0A], [0A]] + [[0A, 0A, -I], [0A, 0A, -I], [1A, 1A, 0A]] * x_1 14.57/4.52 >>> 14.57/4.52 14.57/4.52 <<< 14.57/4.52 POL(b(x_1)) = [[-I], [-I], [-I]] + [[0A, -I, -I], [0A, -I, 0A], [0A, 0A, 0A]] * x_1 14.57/4.52 >>> 14.57/4.52 14.57/4.52 14.57/4.52 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 14.57/4.52 14.57/4.52 c(a(x1)) -> b(a(a(c(c(c(x1)))))) 14.57/4.52 a(x1) -> b(x1) 14.57/4.52 b(b(x1)) -> x1 14.57/4.52 14.57/4.52 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (8) 14.57/4.52 Obligation: 14.57/4.52 Q DP problem: 14.57/4.52 P is empty. 14.57/4.52 The TRS R consists of the following rules: 14.57/4.52 14.57/4.52 a(x1) -> b(x1) 14.57/4.52 c(a(x1)) -> b(a(a(c(c(c(x1)))))) 14.57/4.52 b(b(x1)) -> x1 14.57/4.52 14.57/4.52 Q is empty. 14.57/4.52 We have to consider all minimal (P,Q,R)-chains. 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (9) PisEmptyProof (EQUIVALENT) 14.57/4.52 The TRS P is empty. Hence, there is no (P,Q,R) chain. 14.57/4.52 ---------------------------------------- 14.57/4.52 14.57/4.52 (10) 14.57/4.52 YES 14.92/4.60 EOF