24.29/7.13 YES 24.29/7.14 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 24.29/7.14 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 24.29/7.14 24.29/7.14 24.29/7.14 Termination w.r.t. Q of the given QTRS could be proven: 24.29/7.14 24.29/7.14 (0) QTRS 24.29/7.14 (1) QTRS Reverse [EQUIVALENT, 0 ms] 24.29/7.14 (2) QTRS 24.29/7.14 (3) DependencyPairsProof [EQUIVALENT, 0 ms] 24.29/7.14 (4) QDP 24.29/7.14 (5) DependencyGraphProof [EQUIVALENT, 0 ms] 24.29/7.14 (6) QDP 24.29/7.14 (7) QDPOrderProof [EQUIVALENT, 136 ms] 24.29/7.14 (8) QDP 24.29/7.14 (9) QDPOrderProof [EQUIVALENT, 53 ms] 24.29/7.14 (10) QDP 24.29/7.14 (11) PisEmptyProof [EQUIVALENT, 0 ms] 24.29/7.14 (12) YES 24.29/7.14 24.29/7.14 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (0) 24.29/7.14 Obligation: 24.29/7.14 Q restricted rewrite system: 24.29/7.14 The TRS R consists of the following rules: 24.29/7.14 24.29/7.14 a(x1) -> x1 24.29/7.14 a(a(b(x1))) -> b(b(a(a(x1)))) 24.29/7.14 b(x1) -> a(c(a(x1))) 24.29/7.14 24.29/7.14 Q is empty. 24.29/7.14 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (1) QTRS Reverse (EQUIVALENT) 24.29/7.14 We applied the QTRS Reverse Processor [REVERSE]. 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (2) 24.29/7.14 Obligation: 24.29/7.14 Q restricted rewrite system: 24.29/7.14 The TRS R consists of the following rules: 24.29/7.14 24.29/7.14 a(x1) -> x1 24.29/7.14 b(a(a(x1))) -> a(a(b(b(x1)))) 24.29/7.14 b(x1) -> a(c(a(x1))) 24.29/7.14 24.29/7.14 Q is empty. 24.29/7.14 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (3) DependencyPairsProof (EQUIVALENT) 24.29/7.14 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (4) 24.29/7.14 Obligation: 24.29/7.14 Q DP problem: 24.29/7.14 The TRS P consists of the following rules: 24.29/7.14 24.29/7.14 B(a(a(x1))) -> A(a(b(b(x1)))) 24.29/7.14 B(a(a(x1))) -> A(b(b(x1))) 24.29/7.14 B(a(a(x1))) -> B(b(x1)) 24.29/7.14 B(a(a(x1))) -> B(x1) 24.29/7.14 B(x1) -> A(c(a(x1))) 24.29/7.14 B(x1) -> A(x1) 24.29/7.14 24.29/7.14 The TRS R consists of the following rules: 24.29/7.14 24.29/7.14 a(x1) -> x1 24.29/7.14 b(a(a(x1))) -> a(a(b(b(x1)))) 24.29/7.14 b(x1) -> a(c(a(x1))) 24.29/7.14 24.29/7.14 Q is empty. 24.29/7.14 We have to consider all minimal (P,Q,R)-chains. 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (5) DependencyGraphProof (EQUIVALENT) 24.29/7.14 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 4 less nodes. 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (6) 24.29/7.14 Obligation: 24.29/7.14 Q DP problem: 24.29/7.14 The TRS P consists of the following rules: 24.29/7.14 24.29/7.14 B(a(a(x1))) -> B(x1) 24.29/7.14 B(a(a(x1))) -> B(b(x1)) 24.29/7.14 24.29/7.14 The TRS R consists of the following rules: 24.29/7.14 24.29/7.14 a(x1) -> x1 24.29/7.14 b(a(a(x1))) -> a(a(b(b(x1)))) 24.29/7.14 b(x1) -> a(c(a(x1))) 24.29/7.14 24.29/7.14 Q is empty. 24.29/7.14 We have to consider all minimal (P,Q,R)-chains. 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (7) QDPOrderProof (EQUIVALENT) 24.29/7.14 We use the reduction pair processor [LPAR04,JAR06]. 24.29/7.14 24.29/7.14 24.29/7.14 The following pairs can be oriented strictly and are deleted. 24.29/7.14 24.29/7.14 B(a(a(x1))) -> B(x1) 24.29/7.14 The remaining pairs can at least be oriented weakly. 24.29/7.14 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 24.29/7.14 24.29/7.14 <<< 24.29/7.14 POL(B(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 24.29/7.14 >>> 24.29/7.14 24.29/7.14 <<< 24.29/7.14 POL(a(x_1)) = [[1A], [0A], [0A]] + [[0A, 0A, 0A], [1A, 0A, 1A], [0A, 0A, 0A]] * x_1 24.29/7.14 >>> 24.29/7.14 24.29/7.14 <<< 24.29/7.14 POL(b(x_1)) = [[1A], [1A], [0A]] + [[0A, 0A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 24.29/7.14 >>> 24.29/7.14 24.29/7.14 <<< 24.29/7.14 POL(c(x_1)) = [[0A], [-I], [0A]] + [[-I, -I, -I], [-I, -I, 0A], [-I, -I, -I]] * x_1 24.29/7.14 >>> 24.29/7.14 24.29/7.14 24.29/7.14 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 24.29/7.14 24.29/7.14 b(a(a(x1))) -> a(a(b(b(x1)))) 24.29/7.14 b(x1) -> a(c(a(x1))) 24.29/7.14 a(x1) -> x1 24.29/7.14 24.29/7.14 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (8) 24.29/7.14 Obligation: 24.29/7.14 Q DP problem: 24.29/7.14 The TRS P consists of the following rules: 24.29/7.14 24.29/7.14 B(a(a(x1))) -> B(b(x1)) 24.29/7.14 24.29/7.14 The TRS R consists of the following rules: 24.29/7.14 24.29/7.14 a(x1) -> x1 24.29/7.14 b(a(a(x1))) -> a(a(b(b(x1)))) 24.29/7.14 b(x1) -> a(c(a(x1))) 24.29/7.14 24.29/7.14 Q is empty. 24.29/7.14 We have to consider all minimal (P,Q,R)-chains. 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (9) QDPOrderProof (EQUIVALENT) 24.29/7.14 We use the reduction pair processor [LPAR04,JAR06]. 24.29/7.14 24.29/7.14 24.29/7.14 The following pairs can be oriented strictly and are deleted. 24.29/7.14 24.29/7.14 B(a(a(x1))) -> B(b(x1)) 24.29/7.14 The remaining pairs can at least be oriented weakly. 24.29/7.14 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 24.29/7.14 24.29/7.14 <<< 24.29/7.14 POL(B(x_1)) = [[-I]] + [[0A, 1A, 0A]] * x_1 24.29/7.14 >>> 24.29/7.14 24.29/7.14 <<< 24.29/7.14 POL(a(x_1)) = [[1A], [-I], [-I]] + [[0A, 1A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 24.29/7.14 >>> 24.29/7.14 24.29/7.14 <<< 24.29/7.14 POL(b(x_1)) = [[1A], [0A], [0A]] + [[0A, 1A, 0A], [-I, 0A, -I], [-I, -I, 0A]] * x_1 24.29/7.14 >>> 24.29/7.14 24.29/7.14 <<< 24.29/7.14 POL(c(x_1)) = [[0A], [0A], [0A]] + [[-I, -I, -I], [-I, -I, -I], [-I, -I, -I]] * x_1 24.29/7.14 >>> 24.29/7.14 24.29/7.14 24.29/7.14 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 24.29/7.14 24.29/7.14 b(a(a(x1))) -> a(a(b(b(x1)))) 24.29/7.14 b(x1) -> a(c(a(x1))) 24.29/7.14 a(x1) -> x1 24.29/7.14 24.29/7.14 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (10) 24.29/7.14 Obligation: 24.29/7.14 Q DP problem: 24.29/7.14 P is empty. 24.29/7.14 The TRS R consists of the following rules: 24.29/7.14 24.29/7.14 a(x1) -> x1 24.29/7.14 b(a(a(x1))) -> a(a(b(b(x1)))) 24.29/7.14 b(x1) -> a(c(a(x1))) 24.29/7.14 24.29/7.14 Q is empty. 24.29/7.14 We have to consider all minimal (P,Q,R)-chains. 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (11) PisEmptyProof (EQUIVALENT) 24.29/7.14 The TRS P is empty. Hence, there is no (P,Q,R) chain. 24.29/7.14 ---------------------------------------- 24.29/7.14 24.29/7.14 (12) 24.29/7.14 YES 24.64/7.20 EOF