21.46/6.32 YES 22.00/6.43 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 22.00/6.43 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 22.00/6.43 22.00/6.43 22.00/6.43 Termination w.r.t. Q of the given QTRS could be proven: 22.00/6.43 22.00/6.43 (0) QTRS 22.00/6.43 (1) QTRS Reverse [EQUIVALENT, 0 ms] 22.00/6.43 (2) QTRS 22.00/6.43 (3) DependencyPairsProof [EQUIVALENT, 10 ms] 22.00/6.43 (4) QDP 22.00/6.43 (5) MRRProof [EQUIVALENT, 39 ms] 22.00/6.43 (6) QDP 22.00/6.43 (7) QDPOrderProof [EQUIVALENT, 57 ms] 22.00/6.43 (8) QDP 22.00/6.43 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 22.00/6.43 (10) TRUE 22.00/6.43 22.00/6.43 22.00/6.43 ---------------------------------------- 22.00/6.43 22.00/6.43 (0) 22.00/6.43 Obligation: 22.00/6.43 Q restricted rewrite system: 22.00/6.43 The TRS R consists of the following rules: 22.00/6.43 22.00/6.43 a(a(x1)) -> b(c(x1)) 22.00/6.43 a(b(x1)) -> c(a(x1)) 22.00/6.43 c(c(x1)) -> a(b(x1)) 22.00/6.43 22.00/6.43 Q is empty. 22.00/6.43 22.00/6.43 ---------------------------------------- 22.00/6.43 22.00/6.43 (1) QTRS Reverse (EQUIVALENT) 22.00/6.43 We applied the QTRS Reverse Processor [REVERSE]. 22.00/6.43 ---------------------------------------- 22.00/6.43 22.00/6.43 (2) 22.00/6.43 Obligation: 22.00/6.43 Q restricted rewrite system: 22.00/6.43 The TRS R consists of the following rules: 22.00/6.43 22.00/6.43 a(a(x1)) -> c(b(x1)) 22.00/6.43 b(a(x1)) -> a(c(x1)) 22.00/6.43 c(c(x1)) -> b(a(x1)) 22.00/6.43 22.00/6.43 Q is empty. 22.00/6.43 22.00/6.43 ---------------------------------------- 22.00/6.43 22.00/6.43 (3) DependencyPairsProof (EQUIVALENT) 22.00/6.43 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 22.00/6.43 ---------------------------------------- 22.00/6.43 22.00/6.43 (4) 22.00/6.43 Obligation: 22.00/6.43 Q DP problem: 22.00/6.43 The TRS P consists of the following rules: 22.00/6.43 22.00/6.43 A(a(x1)) -> C(b(x1)) 22.00/6.43 A(a(x1)) -> B(x1) 22.00/6.43 B(a(x1)) -> A(c(x1)) 22.00/6.43 B(a(x1)) -> C(x1) 22.00/6.43 C(c(x1)) -> B(a(x1)) 22.00/6.43 C(c(x1)) -> A(x1) 22.00/6.43 22.00/6.43 The TRS R consists of the following rules: 22.00/6.43 22.00/6.43 a(a(x1)) -> c(b(x1)) 22.00/6.43 b(a(x1)) -> a(c(x1)) 22.00/6.43 c(c(x1)) -> b(a(x1)) 22.00/6.43 22.00/6.43 Q is empty. 22.00/6.43 We have to consider all minimal (P,Q,R)-chains. 22.00/6.43 ---------------------------------------- 22.00/6.43 22.00/6.43 (5) MRRProof (EQUIVALENT) 22.00/6.43 By using the rule removal processor [LPAR04] with the following ordering, at least one Dependency Pair or term rewrite system rule of this QDP problem can be strictly oriented. 22.00/6.43 22.00/6.43 Strictly oriented dependency pairs: 22.00/6.43 22.00/6.43 A(a(x1)) -> B(x1) 22.00/6.43 B(a(x1)) -> C(x1) 22.00/6.43 C(c(x1)) -> A(x1) 22.00/6.43 22.00/6.43 22.00/6.43 Used ordering: Polynomial interpretation [POLO]: 22.00/6.43 22.00/6.43 POL(A(x_1)) = 2*x_1 22.00/6.43 POL(B(x_1)) = 2*x_1 22.04/6.43 POL(C(x_1)) = 2*x_1 22.04/6.43 POL(a(x_1)) = 2 + 2*x_1 22.04/6.43 POL(b(x_1)) = 2 + 2*x_1 22.04/6.43 POL(c(x_1)) = 2 + 2*x_1 22.04/6.43 22.04/6.43 22.04/6.43 ---------------------------------------- 22.04/6.43 22.04/6.43 (6) 22.04/6.43 Obligation: 22.04/6.43 Q DP problem: 22.04/6.43 The TRS P consists of the following rules: 22.04/6.43 22.04/6.43 A(a(x1)) -> C(b(x1)) 22.04/6.43 B(a(x1)) -> A(c(x1)) 22.04/6.43 C(c(x1)) -> B(a(x1)) 22.04/6.43 22.04/6.43 The TRS R consists of the following rules: 22.04/6.43 22.04/6.43 a(a(x1)) -> c(b(x1)) 22.04/6.43 b(a(x1)) -> a(c(x1)) 22.04/6.43 c(c(x1)) -> b(a(x1)) 22.04/6.43 22.04/6.43 Q is empty. 22.04/6.43 We have to consider all minimal (P,Q,R)-chains. 22.04/6.43 ---------------------------------------- 22.04/6.43 22.04/6.43 (7) QDPOrderProof (EQUIVALENT) 22.04/6.43 We use the reduction pair processor [LPAR04,JAR06]. 22.04/6.43 22.04/6.43 22.04/6.43 The following pairs can be oriented strictly and are deleted. 22.04/6.43 22.04/6.43 B(a(x1)) -> A(c(x1)) 22.04/6.43 The remaining pairs can at least be oriented weakly. 22.04/6.43 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 22.04/6.43 22.04/6.43 <<< 22.04/6.43 POL(A(x_1)) = [[0A]] + [[0A, -I, -I]] * x_1 22.04/6.43 >>> 22.04/6.43 22.04/6.43 <<< 22.04/6.43 POL(a(x_1)) = [[-I], [0A], [1A]] + [[0A, 0A, 0A], [1A, -I, 0A], [0A, 1A, 0A]] * x_1 22.04/6.43 >>> 22.04/6.43 22.04/6.43 <<< 22.04/6.43 POL(C(x_1)) = [[0A]] + [[0A, 0A, -I]] * x_1 22.04/6.43 >>> 22.04/6.43 22.04/6.43 <<< 22.04/6.43 POL(b(x_1)) = [[-I], [-I], [0A]] + [[0A, -I, 0A], [0A, 0A, 0A], [0A, 0A, 1A]] * x_1 22.04/6.43 >>> 22.04/6.43 22.04/6.43 <<< 22.04/6.43 POL(B(x_1)) = [[-I]] + [[0A, -I, 0A]] * x_1 22.04/6.43 >>> 22.04/6.43 22.04/6.43 <<< 22.04/6.43 POL(c(x_1)) = [[0A], [1A], [-I]] + [[-I, 0A, -I], [0A, 1A, 0A], [0A, 1A, 0A]] * x_1 22.04/6.43 >>> 22.04/6.43 22.04/6.43 22.04/6.43 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 22.04/6.43 22.04/6.43 c(c(x1)) -> b(a(x1)) 22.04/6.43 b(a(x1)) -> a(c(x1)) 22.04/6.43 a(a(x1)) -> c(b(x1)) 22.04/6.43 22.04/6.43 22.04/6.43 ---------------------------------------- 22.04/6.43 22.04/6.43 (8) 22.04/6.43 Obligation: 22.04/6.43 Q DP problem: 22.04/6.43 The TRS P consists of the following rules: 22.04/6.43 22.04/6.43 A(a(x1)) -> C(b(x1)) 22.04/6.43 C(c(x1)) -> B(a(x1)) 22.04/6.43 22.04/6.43 The TRS R consists of the following rules: 22.04/6.43 22.04/6.43 a(a(x1)) -> c(b(x1)) 22.04/6.43 b(a(x1)) -> a(c(x1)) 22.04/6.43 c(c(x1)) -> b(a(x1)) 22.04/6.43 22.04/6.43 Q is empty. 22.04/6.43 We have to consider all minimal (P,Q,R)-chains. 22.04/6.43 ---------------------------------------- 22.04/6.43 22.04/6.43 (9) DependencyGraphProof (EQUIVALENT) 22.04/6.43 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 2 less nodes. 22.04/6.43 ---------------------------------------- 22.04/6.43 22.04/6.43 (10) 22.04/6.43 TRUE 22.13/8.80 EOF