11.70/3.88 YES 12.31/4.00 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 12.31/4.00 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 12.31/4.00 12.31/4.00 12.31/4.00 Termination w.r.t. Q of the given QTRS could be proven: 12.31/4.00 12.31/4.00 (0) QTRS 12.31/4.00 (1) QTRS Reverse [EQUIVALENT, 0 ms] 12.31/4.00 (2) QTRS 12.31/4.00 (3) DependencyPairsProof [EQUIVALENT, 0 ms] 12.31/4.00 (4) QDP 12.31/4.00 (5) MRRProof [EQUIVALENT, 24 ms] 12.31/4.00 (6) QDP 12.31/4.00 (7) QDPOrderProof [EQUIVALENT, 53 ms] 12.31/4.00 (8) QDP 12.31/4.00 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 12.31/4.00 (10) TRUE 12.31/4.00 12.31/4.00 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (0) 12.31/4.00 Obligation: 12.31/4.00 Q restricted rewrite system: 12.31/4.00 The TRS R consists of the following rules: 12.31/4.00 12.31/4.00 a(a(x1)) -> a(b(x1)) 12.31/4.00 a(c(x1)) -> b(x1) 12.31/4.00 b(b(x1)) -> c(b(a(x1))) 12.31/4.00 12.31/4.00 Q is empty. 12.31/4.00 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (1) QTRS Reverse (EQUIVALENT) 12.31/4.00 We applied the QTRS Reverse Processor [REVERSE]. 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (2) 12.31/4.00 Obligation: 12.31/4.00 Q restricted rewrite system: 12.31/4.00 The TRS R consists of the following rules: 12.31/4.00 12.31/4.00 a(a(x1)) -> b(a(x1)) 12.31/4.00 c(a(x1)) -> b(x1) 12.31/4.00 b(b(x1)) -> a(b(c(x1))) 12.31/4.00 12.31/4.00 Q is empty. 12.31/4.00 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (3) DependencyPairsProof (EQUIVALENT) 12.31/4.00 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (4) 12.31/4.00 Obligation: 12.31/4.00 Q DP problem: 12.31/4.00 The TRS P consists of the following rules: 12.31/4.00 12.31/4.00 A(a(x1)) -> B(a(x1)) 12.31/4.00 C(a(x1)) -> B(x1) 12.31/4.00 B(b(x1)) -> A(b(c(x1))) 12.31/4.00 B(b(x1)) -> B(c(x1)) 12.31/4.00 B(b(x1)) -> C(x1) 12.31/4.00 12.31/4.00 The TRS R consists of the following rules: 12.31/4.00 12.31/4.00 a(a(x1)) -> b(a(x1)) 12.31/4.00 c(a(x1)) -> b(x1) 12.31/4.00 b(b(x1)) -> a(b(c(x1))) 12.31/4.00 12.31/4.00 Q is empty. 12.31/4.00 We have to consider all minimal (P,Q,R)-chains. 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (5) MRRProof (EQUIVALENT) 12.31/4.00 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. 12.31/4.00 12.31/4.00 Strictly oriented dependency pairs: 12.31/4.00 12.31/4.00 C(a(x1)) -> B(x1) 12.31/4.00 B(b(x1)) -> B(c(x1)) 12.31/4.00 B(b(x1)) -> C(x1) 12.31/4.00 12.31/4.00 12.31/4.00 Used ordering: Polynomial interpretation [POLO]: 12.31/4.00 12.31/4.00 POL(A(x_1)) = 3 + 3*x_1 12.31/4.00 POL(B(x_1)) = 3 + 3*x_1 12.31/4.00 POL(C(x_1)) = 3 + 3*x_1 12.31/4.00 POL(a(x_1)) = 3 + 2*x_1 12.31/4.00 POL(b(x_1)) = 3 + 2*x_1 12.31/4.00 POL(c(x_1)) = x_1 12.31/4.00 12.31/4.00 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (6) 12.31/4.00 Obligation: 12.31/4.00 Q DP problem: 12.31/4.00 The TRS P consists of the following rules: 12.31/4.00 12.31/4.00 A(a(x1)) -> B(a(x1)) 12.31/4.00 B(b(x1)) -> A(b(c(x1))) 12.31/4.00 12.31/4.00 The TRS R consists of the following rules: 12.31/4.00 12.31/4.00 a(a(x1)) -> b(a(x1)) 12.31/4.00 c(a(x1)) -> b(x1) 12.31/4.00 b(b(x1)) -> a(b(c(x1))) 12.31/4.00 12.31/4.00 Q is empty. 12.31/4.00 We have to consider all minimal (P,Q,R)-chains. 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (7) QDPOrderProof (EQUIVALENT) 12.31/4.00 We use the reduction pair processor [LPAR04,JAR06]. 12.31/4.00 12.31/4.00 12.31/4.00 The following pairs can be oriented strictly and are deleted. 12.31/4.00 12.31/4.00 A(a(x1)) -> B(a(x1)) 12.31/4.00 The remaining pairs can at least be oriented weakly. 12.31/4.00 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 12.31/4.00 12.31/4.00 <<< 12.31/4.00 POL(A(x_1)) = [[0A]] + [[-I, -I, 1A]] * x_1 12.31/4.00 >>> 12.31/4.00 12.31/4.00 <<< 12.31/4.00 POL(a(x_1)) = [[0A], [0A], [0A]] + [[0A, 0A, 0A], [0A, -I, 1A], [0A, 0A, 1A]] * x_1 12.31/4.00 >>> 12.31/4.00 12.31/4.00 <<< 12.31/4.00 POL(B(x_1)) = [[0A]] + [[-I, 0A, 0A]] * x_1 12.31/4.00 >>> 12.31/4.00 12.31/4.00 <<< 12.31/4.00 POL(b(x_1)) = [[-I], [0A], [-I]] + [[0A, 0A, 0A], [0A, 0A, 1A], [-I, 0A, -I]] * x_1 12.31/4.00 >>> 12.31/4.00 12.31/4.00 <<< 12.31/4.00 POL(c(x_1)) = [[-I], [-I], [-I]] + [[0A, -I, -I], [-I, -I, 0A], [-I, -I, 0A]] * x_1 12.31/4.00 >>> 12.31/4.00 12.31/4.00 12.31/4.00 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 12.31/4.00 12.31/4.00 b(b(x1)) -> a(b(c(x1))) 12.31/4.00 a(a(x1)) -> b(a(x1)) 12.31/4.00 c(a(x1)) -> b(x1) 12.31/4.00 12.31/4.00 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (8) 12.31/4.00 Obligation: 12.31/4.00 Q DP problem: 12.31/4.00 The TRS P consists of the following rules: 12.31/4.00 12.31/4.00 B(b(x1)) -> A(b(c(x1))) 12.31/4.00 12.31/4.00 The TRS R consists of the following rules: 12.31/4.00 12.31/4.00 a(a(x1)) -> b(a(x1)) 12.31/4.00 c(a(x1)) -> b(x1) 12.31/4.00 b(b(x1)) -> a(b(c(x1))) 12.31/4.00 12.31/4.00 Q is empty. 12.31/4.00 We have to consider all minimal (P,Q,R)-chains. 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (9) DependencyGraphProof (EQUIVALENT) 12.31/4.00 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node. 12.31/4.00 ---------------------------------------- 12.31/4.00 12.31/4.00 (10) 12.31/4.00 TRUE 12.31/4.06 EOF