36.85/10.42 YES 39.43/11.52 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 39.43/11.52 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 39.43/11.52 39.43/11.52 39.43/11.52 Termination w.r.t. Q of the given QTRS could be proven: 39.43/11.52 39.43/11.52 (0) QTRS 39.43/11.52 (1) QTRS Reverse [EQUIVALENT, 0 ms] 39.43/11.52 (2) QTRS 39.43/11.52 (3) DependencyPairsProof [EQUIVALENT, 0 ms] 39.43/11.52 (4) QDP 39.43/11.52 (5) QDPOrderProof [EQUIVALENT, 20 ms] 39.43/11.52 (6) QDP 39.43/11.52 (7) QDPOrderProof [EQUIVALENT, 19 ms] 39.43/11.52 (8) QDP 39.43/11.52 (9) MRRProof [EQUIVALENT, 33 ms] 39.43/11.52 (10) QDP 39.43/11.52 (11) QDPOrderProof [EQUIVALENT, 109 ms] 39.43/11.52 (12) QDP 39.43/11.52 (13) DependencyGraphProof [EQUIVALENT, 0 ms] 39.43/11.52 (14) TRUE 39.43/11.52 39.43/11.52 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (0) 39.43/11.52 Obligation: 39.43/11.52 Q restricted rewrite system: 39.43/11.52 The TRS R consists of the following rules: 39.43/11.52 39.43/11.52 c(b(a(a(x1)))) -> a(a(b(c(x1)))) 39.43/11.52 b(a(a(a(x1)))) -> a(a(a(b(x1)))) 39.43/11.52 a(b(c(x1))) -> c(b(a(x1))) 39.43/11.52 c(c(b(b(x1)))) -> b(b(c(c(x1)))) 39.43/11.52 39.43/11.52 Q is empty. 39.43/11.52 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (1) QTRS Reverse (EQUIVALENT) 39.43/11.52 We applied the QTRS Reverse Processor [REVERSE]. 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (2) 39.43/11.52 Obligation: 39.43/11.52 Q restricted rewrite system: 39.43/11.52 The TRS R consists of the following rules: 39.43/11.52 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 Q is empty. 39.43/11.52 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (3) DependencyPairsProof (EQUIVALENT) 39.43/11.52 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (4) 39.43/11.52 Obligation: 39.43/11.52 Q DP problem: 39.43/11.52 The TRS P consists of the following rules: 39.43/11.52 39.43/11.52 A(a(b(c(x1)))) -> C(b(a(a(x1)))) 39.43/11.52 A(a(b(c(x1)))) -> B(a(a(x1))) 39.43/11.52 A(a(b(c(x1)))) -> A(a(x1)) 39.43/11.52 A(a(b(c(x1)))) -> A(x1) 39.43/11.52 A(a(a(b(x1)))) -> B(a(a(a(x1)))) 39.43/11.52 A(a(a(b(x1)))) -> A(a(a(x1))) 39.43/11.52 A(a(a(b(x1)))) -> A(a(x1)) 39.43/11.52 A(a(a(b(x1)))) -> A(x1) 39.43/11.52 C(b(a(x1))) -> A(b(c(x1))) 39.43/11.52 C(b(a(x1))) -> B(c(x1)) 39.43/11.52 C(b(a(x1))) -> C(x1) 39.43/11.52 B(b(c(c(x1)))) -> C(c(b(b(x1)))) 39.43/11.52 B(b(c(c(x1)))) -> C(b(b(x1))) 39.43/11.52 B(b(c(c(x1)))) -> B(b(x1)) 39.43/11.52 B(b(c(c(x1)))) -> B(x1) 39.43/11.52 39.43/11.52 The TRS R consists of the following rules: 39.43/11.52 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 Q is empty. 39.43/11.52 We have to consider all minimal (P,Q,R)-chains. 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (5) QDPOrderProof (EQUIVALENT) 39.43/11.52 We use the reduction pair processor [LPAR04,JAR06]. 39.43/11.52 39.43/11.52 39.43/11.52 The following pairs can be oriented strictly and are deleted. 39.43/11.52 39.43/11.52 A(a(b(c(x1)))) -> A(x1) 39.43/11.52 A(a(a(b(x1)))) -> A(a(x1)) 39.43/11.52 A(a(a(b(x1)))) -> A(x1) 39.43/11.52 C(b(a(x1))) -> B(c(x1)) 39.43/11.52 C(b(a(x1))) -> C(x1) 39.43/11.52 The remaining pairs can at least be oriented weakly. 39.43/11.52 Used ordering: Polynomial interpretation [POLO]: 39.43/11.52 39.43/11.52 POL(A(x_1)) = 1 + x_1 39.43/11.52 POL(B(x_1)) = x_1 39.43/11.52 POL(C(x_1)) = x_1 39.43/11.52 POL(a(x_1)) = 1 + x_1 39.43/11.52 POL(b(x_1)) = x_1 39.43/11.52 POL(c(x_1)) = x_1 39.43/11.52 39.43/11.52 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 39.43/11.52 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (6) 39.43/11.52 Obligation: 39.43/11.52 Q DP problem: 39.43/11.52 The TRS P consists of the following rules: 39.43/11.52 39.43/11.52 A(a(b(c(x1)))) -> C(b(a(a(x1)))) 39.43/11.52 A(a(b(c(x1)))) -> B(a(a(x1))) 39.43/11.52 A(a(b(c(x1)))) -> A(a(x1)) 39.43/11.52 A(a(a(b(x1)))) -> B(a(a(a(x1)))) 39.43/11.52 A(a(a(b(x1)))) -> A(a(a(x1))) 39.43/11.52 C(b(a(x1))) -> A(b(c(x1))) 39.43/11.52 B(b(c(c(x1)))) -> C(c(b(b(x1)))) 39.43/11.52 B(b(c(c(x1)))) -> C(b(b(x1))) 39.43/11.52 B(b(c(c(x1)))) -> B(b(x1)) 39.43/11.52 B(b(c(c(x1)))) -> B(x1) 39.43/11.52 39.43/11.52 The TRS R consists of the following rules: 39.43/11.52 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 Q is empty. 39.43/11.52 We have to consider all minimal (P,Q,R)-chains. 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (7) QDPOrderProof (EQUIVALENT) 39.43/11.52 We use the reduction pair processor [LPAR04,JAR06]. 39.43/11.52 39.43/11.52 39.43/11.52 The following pairs can be oriented strictly and are deleted. 39.43/11.52 39.43/11.52 A(a(b(c(x1)))) -> B(a(a(x1))) 39.43/11.52 A(a(b(c(x1)))) -> A(a(x1)) 39.43/11.52 B(b(c(c(x1)))) -> C(b(b(x1))) 39.43/11.52 B(b(c(c(x1)))) -> B(b(x1)) 39.43/11.52 B(b(c(c(x1)))) -> B(x1) 39.43/11.52 The remaining pairs can at least be oriented weakly. 39.43/11.52 Used ordering: Polynomial interpretation [POLO]: 39.43/11.52 39.43/11.52 POL(A(x_1)) = x_1 39.43/11.52 POL(B(x_1)) = x_1 39.43/11.52 POL(C(x_1)) = 1 + x_1 39.43/11.52 POL(a(x_1)) = x_1 39.43/11.52 POL(b(x_1)) = x_1 39.43/11.52 POL(c(x_1)) = 1 + x_1 39.43/11.52 39.43/11.52 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 39.43/11.52 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (8) 39.43/11.52 Obligation: 39.43/11.52 Q DP problem: 39.43/11.52 The TRS P consists of the following rules: 39.43/11.52 39.43/11.52 A(a(b(c(x1)))) -> C(b(a(a(x1)))) 39.43/11.52 A(a(a(b(x1)))) -> B(a(a(a(x1)))) 39.43/11.52 A(a(a(b(x1)))) -> A(a(a(x1))) 39.43/11.52 C(b(a(x1))) -> A(b(c(x1))) 39.43/11.52 B(b(c(c(x1)))) -> C(c(b(b(x1)))) 39.43/11.52 39.43/11.52 The TRS R consists of the following rules: 39.43/11.52 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 Q is empty. 39.43/11.52 We have to consider all minimal (P,Q,R)-chains. 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (9) MRRProof (EQUIVALENT) 39.43/11.52 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. 39.43/11.52 39.43/11.52 Strictly oriented dependency pairs: 39.43/11.52 39.43/11.52 A(a(a(b(x1)))) -> A(a(a(x1))) 39.43/11.52 39.43/11.52 39.43/11.52 Used ordering: Polynomial interpretation [POLO]: 39.43/11.52 39.43/11.52 POL(A(x_1)) = x_1 39.43/11.52 POL(B(x_1)) = 2 + 2*x_1 39.43/11.52 POL(C(x_1)) = 2 + 2*x_1 39.43/11.52 POL(a(x_1)) = x_1 39.43/11.52 POL(b(x_1)) = 2 + 2*x_1 39.43/11.52 POL(c(x_1)) = 2 + 2*x_1 39.43/11.52 39.43/11.52 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (10) 39.43/11.52 Obligation: 39.43/11.52 Q DP problem: 39.43/11.52 The TRS P consists of the following rules: 39.43/11.52 39.43/11.52 A(a(b(c(x1)))) -> C(b(a(a(x1)))) 39.43/11.52 A(a(a(b(x1)))) -> B(a(a(a(x1)))) 39.43/11.52 C(b(a(x1))) -> A(b(c(x1))) 39.43/11.52 B(b(c(c(x1)))) -> C(c(b(b(x1)))) 39.43/11.52 39.43/11.52 The TRS R consists of the following rules: 39.43/11.52 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 Q is empty. 39.43/11.52 We have to consider all minimal (P,Q,R)-chains. 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (11) QDPOrderProof (EQUIVALENT) 39.43/11.52 We use the reduction pair processor [LPAR04,JAR06]. 39.43/11.52 39.43/11.52 39.43/11.52 The following pairs can be oriented strictly and are deleted. 39.43/11.52 39.43/11.52 C(b(a(x1))) -> A(b(c(x1))) 39.43/11.52 The remaining pairs can at least be oriented weakly. 39.43/11.52 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 39.43/11.52 39.43/11.52 <<< 39.43/11.52 POL(A(x_1)) = [[-I]] + [[0A, -I, 0A]] * x_1 39.43/11.52 >>> 39.43/11.52 39.43/11.52 <<< 39.43/11.52 POL(a(x_1)) = [[-I], [-I], [0A]] + [[0A, -I, -I], [-I, -I, 0A], [0A, 0A, 0A]] * x_1 39.43/11.52 >>> 39.43/11.52 39.43/11.52 <<< 39.43/11.52 POL(b(x_1)) = [[-I], [0A], [-I]] + [[0A, -I, -I], [0A, -I, 0A], [0A, 0A, -I]] * x_1 39.43/11.52 >>> 39.43/11.52 39.43/11.52 <<< 39.43/11.52 POL(c(x_1)) = [[-I], [-I], [0A]] + [[0A, -I, -I], [0A, -I, -I], [1A, 0A, 0A]] * x_1 39.43/11.52 >>> 39.43/11.52 39.43/11.52 <<< 39.43/11.52 POL(C(x_1)) = [[-I]] + [[1A, -I, -I]] * x_1 39.43/11.52 >>> 39.43/11.52 39.43/11.52 <<< 39.43/11.52 POL(B(x_1)) = [[-I]] + [[0A, 0A, 0A]] * x_1 39.43/11.52 >>> 39.43/11.52 39.43/11.52 39.43/11.52 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 39.43/11.52 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (12) 39.43/11.52 Obligation: 39.43/11.52 Q DP problem: 39.43/11.52 The TRS P consists of the following rules: 39.43/11.52 39.43/11.52 A(a(b(c(x1)))) -> C(b(a(a(x1)))) 39.43/11.52 A(a(a(b(x1)))) -> B(a(a(a(x1)))) 39.43/11.52 B(b(c(c(x1)))) -> C(c(b(b(x1)))) 39.43/11.52 39.43/11.52 The TRS R consists of the following rules: 39.43/11.52 39.43/11.52 a(a(b(c(x1)))) -> c(b(a(a(x1)))) 39.43/11.52 a(a(a(b(x1)))) -> b(a(a(a(x1)))) 39.43/11.52 c(b(a(x1))) -> a(b(c(x1))) 39.43/11.52 b(b(c(c(x1)))) -> c(c(b(b(x1)))) 39.43/11.52 39.43/11.52 Q is empty. 39.43/11.52 We have to consider all minimal (P,Q,R)-chains. 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (13) DependencyGraphProof (EQUIVALENT) 39.43/11.52 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 3 less nodes. 39.43/11.52 ---------------------------------------- 39.43/11.52 39.43/11.52 (14) 39.43/11.52 TRUE 39.66/11.74 EOF