26.96/7.77 YES 28.40/8.22 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 28.40/8.22 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 28.40/8.22 28.40/8.22 28.40/8.22 Termination w.r.t. Q of the given QTRS could be proven: 28.40/8.22 28.40/8.22 (0) QTRS 28.40/8.22 (1) QTRS Reverse [EQUIVALENT, 0 ms] 28.40/8.22 (2) QTRS 28.40/8.22 (3) DependencyPairsProof [EQUIVALENT, 30 ms] 28.40/8.22 (4) QDP 28.40/8.22 (5) DependencyGraphProof [EQUIVALENT, 1 ms] 28.40/8.22 (6) QDP 28.40/8.22 (7) QDPOrderProof [EQUIVALENT, 132 ms] 28.40/8.22 (8) QDP 28.40/8.22 (9) PisEmptyProof [EQUIVALENT, 0 ms] 28.40/8.22 (10) YES 28.40/8.22 28.40/8.22 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (0) 28.40/8.22 Obligation: 28.40/8.22 Q restricted rewrite system: 28.40/8.22 The TRS R consists of the following rules: 28.40/8.22 28.40/8.22 a(x1) -> x1 28.40/8.22 a(b(x1)) -> b(b(a(a(c(x1))))) 28.40/8.22 b(x1) -> x1 28.40/8.22 c(b(c(x1))) -> x1 28.40/8.22 28.40/8.22 Q is empty. 28.40/8.22 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (1) QTRS Reverse (EQUIVALENT) 28.40/8.22 We applied the QTRS Reverse Processor [REVERSE]. 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (2) 28.40/8.22 Obligation: 28.40/8.22 Q restricted rewrite system: 28.40/8.22 The TRS R consists of the following rules: 28.40/8.22 28.40/8.22 a(x1) -> x1 28.40/8.22 b(a(x1)) -> c(a(a(b(b(x1))))) 28.40/8.22 b(x1) -> x1 28.40/8.22 c(b(c(x1))) -> x1 28.40/8.22 28.40/8.22 Q is empty. 28.40/8.22 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (3) DependencyPairsProof (EQUIVALENT) 28.40/8.22 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (4) 28.40/8.22 Obligation: 28.40/8.22 Q DP problem: 28.40/8.22 The TRS P consists of the following rules: 28.40/8.22 28.40/8.22 B(a(x1)) -> C(a(a(b(b(x1))))) 28.40/8.22 B(a(x1)) -> A(a(b(b(x1)))) 28.40/8.22 B(a(x1)) -> A(b(b(x1))) 28.40/8.22 B(a(x1)) -> B(b(x1)) 28.40/8.22 B(a(x1)) -> B(x1) 28.40/8.22 28.40/8.22 The TRS R consists of the following rules: 28.40/8.22 28.40/8.22 a(x1) -> x1 28.40/8.22 b(a(x1)) -> c(a(a(b(b(x1))))) 28.40/8.22 b(x1) -> x1 28.40/8.22 c(b(c(x1))) -> x1 28.40/8.22 28.40/8.22 Q is empty. 28.40/8.22 We have to consider all minimal (P,Q,R)-chains. 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (5) DependencyGraphProof (EQUIVALENT) 28.40/8.22 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 3 less nodes. 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (6) 28.40/8.22 Obligation: 28.40/8.22 Q DP problem: 28.40/8.22 The TRS P consists of the following rules: 28.40/8.22 28.40/8.22 B(a(x1)) -> B(x1) 28.40/8.22 B(a(x1)) -> B(b(x1)) 28.40/8.22 28.40/8.22 The TRS R consists of the following rules: 28.40/8.22 28.40/8.22 a(x1) -> x1 28.40/8.22 b(a(x1)) -> c(a(a(b(b(x1))))) 28.40/8.22 b(x1) -> x1 28.40/8.22 c(b(c(x1))) -> x1 28.40/8.22 28.40/8.22 Q is empty. 28.40/8.22 We have to consider all minimal (P,Q,R)-chains. 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (7) QDPOrderProof (EQUIVALENT) 28.40/8.22 We use the reduction pair processor [LPAR04,JAR06]. 28.40/8.22 28.40/8.22 28.40/8.22 The following pairs can be oriented strictly and are deleted. 28.40/8.22 28.40/8.22 B(a(x1)) -> B(x1) 28.40/8.22 B(a(x1)) -> B(b(x1)) 28.40/8.22 The remaining pairs can at least be oriented weakly. 28.40/8.22 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 28.40/8.22 28.40/8.22 <<< 28.40/8.22 POL(B(x_1)) = [[0A]] + [[-I, 0A, -I]] * x_1 28.40/8.22 >>> 28.40/8.22 28.40/8.22 <<< 28.40/8.22 POL(a(x_1)) = [[-I], [1A], [0A]] + [[0A, 0A, 0A], [0A, 1A, 0A], [0A, 0A, 0A]] * x_1 28.40/8.22 >>> 28.40/8.22 28.40/8.22 <<< 28.40/8.22 POL(b(x_1)) = [[-I], [-I], [-I]] + [[0A, 1A, -I], [-I, 0A, -I], [0A, 1A, 0A]] * x_1 28.40/8.22 >>> 28.40/8.22 28.40/8.22 <<< 28.40/8.22 POL(c(x_1)) = [[-I], [-I], [-I]] + [[0A, 0A, 0A], [0A, -I, 0A], [0A, 0A, 0A]] * x_1 28.40/8.22 >>> 28.40/8.22 28.40/8.22 28.40/8.22 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 28.40/8.22 28.40/8.22 b(a(x1)) -> c(a(a(b(b(x1))))) 28.40/8.22 b(x1) -> x1 28.40/8.22 a(x1) -> x1 28.40/8.22 c(b(c(x1))) -> x1 28.40/8.22 28.40/8.22 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (8) 28.40/8.22 Obligation: 28.40/8.22 Q DP problem: 28.40/8.22 P is empty. 28.40/8.22 The TRS R consists of the following rules: 28.40/8.22 28.40/8.22 a(x1) -> x1 28.40/8.22 b(a(x1)) -> c(a(a(b(b(x1))))) 28.40/8.22 b(x1) -> x1 28.40/8.22 c(b(c(x1))) -> x1 28.40/8.22 28.40/8.22 Q is empty. 28.40/8.22 We have to consider all minimal (P,Q,R)-chains. 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (9) PisEmptyProof (EQUIVALENT) 28.40/8.22 The TRS P is empty. Hence, there is no (P,Q,R) chain. 28.40/8.22 ---------------------------------------- 28.40/8.22 28.40/8.22 (10) 28.40/8.22 YES 28.54/8.40 EOF