22.70/6.70 YES 22.70/6.75 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 22.70/6.75 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 22.70/6.75 22.70/6.75 22.70/6.75 Termination w.r.t. Q of the given QTRS could be proven: 22.70/6.75 22.70/6.75 (0) QTRS 22.70/6.75 (1) QTRS Reverse [EQUIVALENT, 0 ms] 22.70/6.75 (2) QTRS 22.70/6.75 (3) DependencyPairsProof [EQUIVALENT, 0 ms] 22.70/6.75 (4) QDP 22.70/6.75 (5) DependencyGraphProof [EQUIVALENT, 0 ms] 22.70/6.75 (6) QDP 22.70/6.75 (7) QDPOrderProof [EQUIVALENT, 172 ms] 22.70/6.75 (8) QDP 22.70/6.75 (9) PisEmptyProof [EQUIVALENT, 0 ms] 22.70/6.75 (10) YES 22.70/6.75 22.70/6.75 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (0) 22.70/6.75 Obligation: 22.70/6.75 Q restricted rewrite system: 22.70/6.75 The TRS R consists of the following rules: 22.70/6.75 22.70/6.75 a(x1) -> x1 22.70/6.75 a(b(x1)) -> b(b(a(a(c(x1))))) 22.70/6.75 b(x1) -> x1 22.70/6.75 c(a(c(x1))) -> x1 22.70/6.75 22.70/6.75 Q is empty. 22.70/6.75 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (1) QTRS Reverse (EQUIVALENT) 22.70/6.75 We applied the QTRS Reverse Processor [REVERSE]. 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (2) 22.70/6.75 Obligation: 22.70/6.75 Q restricted rewrite system: 22.70/6.75 The TRS R consists of the following rules: 22.70/6.75 22.70/6.75 a(x1) -> x1 22.70/6.75 b(a(x1)) -> c(a(a(b(b(x1))))) 22.70/6.75 b(x1) -> x1 22.70/6.75 c(a(c(x1))) -> x1 22.70/6.75 22.70/6.75 Q is empty. 22.70/6.75 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (3) DependencyPairsProof (EQUIVALENT) 22.70/6.75 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (4) 22.70/6.75 Obligation: 22.70/6.75 Q DP problem: 22.70/6.75 The TRS P consists of the following rules: 22.70/6.75 22.70/6.75 B(a(x1)) -> C(a(a(b(b(x1))))) 22.70/6.75 B(a(x1)) -> A(a(b(b(x1)))) 22.70/6.75 B(a(x1)) -> A(b(b(x1))) 22.70/6.75 B(a(x1)) -> B(b(x1)) 22.70/6.75 B(a(x1)) -> B(x1) 22.70/6.75 22.70/6.75 The TRS R consists of the following rules: 22.70/6.75 22.70/6.75 a(x1) -> x1 22.70/6.75 b(a(x1)) -> c(a(a(b(b(x1))))) 22.70/6.75 b(x1) -> x1 22.70/6.75 c(a(c(x1))) -> x1 22.70/6.75 22.70/6.75 Q is empty. 22.70/6.75 We have to consider all minimal (P,Q,R)-chains. 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (5) DependencyGraphProof (EQUIVALENT) 22.70/6.75 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 3 less nodes. 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (6) 22.70/6.75 Obligation: 22.70/6.75 Q DP problem: 22.70/6.75 The TRS P consists of the following rules: 22.70/6.75 22.70/6.75 B(a(x1)) -> B(x1) 22.70/6.75 B(a(x1)) -> B(b(x1)) 22.70/6.75 22.70/6.75 The TRS R consists of the following rules: 22.70/6.75 22.70/6.75 a(x1) -> x1 22.70/6.75 b(a(x1)) -> c(a(a(b(b(x1))))) 22.70/6.75 b(x1) -> x1 22.70/6.75 c(a(c(x1))) -> x1 22.70/6.75 22.70/6.75 Q is empty. 22.70/6.75 We have to consider all minimal (P,Q,R)-chains. 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (7) QDPOrderProof (EQUIVALENT) 22.70/6.75 We use the reduction pair processor [LPAR04,JAR06]. 22.70/6.75 22.70/6.75 22.70/6.75 The following pairs can be oriented strictly and are deleted. 22.70/6.75 22.70/6.75 B(a(x1)) -> B(x1) 22.70/6.75 B(a(x1)) -> B(b(x1)) 22.70/6.75 The remaining pairs can at least be oriented weakly. 22.70/6.75 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 22.70/6.75 22.70/6.75 <<< 22.70/6.75 POL(B(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 22.70/6.75 >>> 22.70/6.75 22.70/6.75 <<< 22.70/6.75 POL(a(x_1)) = [[0A], [0A], [1A]] + [[0A, 0A, 0A], [-I, 0A, -I], [0A, 0A, 1A]] * x_1 22.70/6.75 >>> 22.70/6.75 22.70/6.75 <<< 22.70/6.75 POL(b(x_1)) = [[0A], [-I], [0A]] + [[0A, 0A, 1A], [-I, 0A, -I], [-I, -I, 0A]] * x_1 22.70/6.75 >>> 22.70/6.75 22.70/6.75 <<< 22.70/6.75 POL(c(x_1)) = [[-I], [-I], [-I]] + [[0A, 0A, 0A], [-I, 0A, -I], [0A, 0A, -I]] * x_1 22.70/6.75 >>> 22.70/6.75 22.70/6.75 22.70/6.75 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 22.70/6.75 22.70/6.75 b(a(x1)) -> c(a(a(b(b(x1))))) 22.70/6.75 b(x1) -> x1 22.70/6.75 a(x1) -> x1 22.70/6.75 c(a(c(x1))) -> x1 22.70/6.75 22.70/6.75 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (8) 22.70/6.75 Obligation: 22.70/6.75 Q DP problem: 22.70/6.75 P is empty. 22.70/6.75 The TRS R consists of the following rules: 22.70/6.75 22.70/6.75 a(x1) -> x1 22.70/6.75 b(a(x1)) -> c(a(a(b(b(x1))))) 22.70/6.75 b(x1) -> x1 22.70/6.75 c(a(c(x1))) -> x1 22.70/6.75 22.70/6.75 Q is empty. 22.70/6.75 We have to consider all minimal (P,Q,R)-chains. 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (9) PisEmptyProof (EQUIVALENT) 22.70/6.75 The TRS P is empty. Hence, there is no (P,Q,R) chain. 22.70/6.75 ---------------------------------------- 22.70/6.75 22.70/6.75 (10) 22.70/6.75 YES 23.09/6.88 EOF