9.93/3.40 YES 10.24/3.46 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 10.24/3.46 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 10.24/3.46 10.24/3.46 10.24/3.46 Termination w.r.t. Q of the given QTRS could be proven: 10.24/3.46 10.24/3.46 (0) QTRS 10.24/3.46 (1) FlatCCProof [EQUIVALENT, 0 ms] 10.24/3.46 (2) QTRS 10.24/3.46 (3) RootLabelingProof [EQUIVALENT, 0 ms] 10.24/3.46 (4) QTRS 10.24/3.46 (5) QTRSRRRProof [EQUIVALENT, 64 ms] 10.24/3.46 (6) QTRS 10.24/3.46 (7) DependencyPairsProof [EQUIVALENT, 8 ms] 10.24/3.46 (8) QDP 10.24/3.46 (9) QDPOrderProof [EQUIVALENT, 17 ms] 10.24/3.46 (10) QDP 10.24/3.46 (11) DependencyGraphProof [EQUIVALENT, 0 ms] 10.24/3.46 (12) TRUE 10.24/3.46 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (0) 10.24/3.46 Obligation: 10.24/3.46 Q restricted rewrite system: 10.24/3.46 The TRS R consists of the following rules: 10.24/3.46 10.24/3.46 a(b(b(a(x1)))) -> b(a(b(a(x1)))) 10.24/3.46 a(b(b(b(x1)))) -> a(a(b(a(x1)))) 10.24/3.46 a(a(a(a(x1)))) -> b(b(b(a(x1)))) 10.24/3.46 10.24/3.46 Q is empty. 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (1) FlatCCProof (EQUIVALENT) 10.24/3.46 We used flat context closure [ROOTLAB] 10.24/3.46 As Q is empty the flat context closure was sound AND complete. 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (2) 10.24/3.46 Obligation: 10.24/3.46 Q restricted rewrite system: 10.24/3.46 The TRS R consists of the following rules: 10.24/3.46 10.24/3.46 a(b(b(b(x1)))) -> a(a(b(a(x1)))) 10.24/3.46 a(a(b(b(a(x1))))) -> a(b(a(b(a(x1))))) 10.24/3.46 b(a(b(b(a(x1))))) -> b(b(a(b(a(x1))))) 10.24/3.46 a(a(a(a(a(x1))))) -> a(b(b(b(a(x1))))) 10.24/3.46 b(a(a(a(a(x1))))) -> b(b(b(b(a(x1))))) 10.24/3.46 10.24/3.46 Q is empty. 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (3) RootLabelingProof (EQUIVALENT) 10.24/3.46 We used plain root labeling [ROOTLAB] with the following heuristic: 10.24/3.46 LabelAll: All function symbols get labeled 10.24/3.46 10.24/3.46 As Q is empty the root labeling was sound AND complete. 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (4) 10.24/3.46 Obligation: 10.24/3.46 Q restricted rewrite system: 10.24/3.46 The TRS R consists of the following rules: 10.24/3.46 10.24/3.46 a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1)))) 10.24/3.46 a_{b_1}(b_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1)))) 10.24/3.46 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> a_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> a_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 10.24/3.46 Q is empty. 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (5) QTRSRRRProof (EQUIVALENT) 10.24/3.46 Used ordering: 10.24/3.46 Polynomial interpretation [POLO]: 10.24/3.46 10.24/3.46 POL(a_{a_1}(x_1)) = 1 + x_1 10.24/3.46 POL(a_{b_1}(x_1)) = 1 + x_1 10.24/3.46 POL(b_{a_1}(x_1)) = x_1 10.24/3.46 POL(b_{b_1}(x_1)) = 1 + x_1 10.24/3.46 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 10.24/3.46 10.24/3.46 a_{b_1}(b_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1)))) 10.24/3.46 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> a_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> a_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 10.24/3.46 10.24/3.46 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (6) 10.24/3.46 Obligation: 10.24/3.46 Q restricted rewrite system: 10.24/3.46 The TRS R consists of the following rules: 10.24/3.46 10.24/3.46 a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1)))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 10.24/3.46 Q is empty. 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (7) DependencyPairsProof (EQUIVALENT) 10.24/3.46 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (8) 10.24/3.46 Obligation: 10.24/3.46 Q DP problem: 10.24/3.46 The TRS P consists of the following rules: 10.24/3.46 10.24/3.46 A_{B_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> A_{B_1}(b_{a_1}(a_{a_1}(x1))) 10.24/3.46 A_{B_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> B_{A_1}(a_{a_1}(x1)) 10.24/3.46 B_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> B_{A_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1)))) 10.24/3.46 B_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> A_{B_1}(b_{a_1}(a_{a_1}(x1))) 10.24/3.46 B_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> B_{A_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1)))) 10.24/3.46 B_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> A_{B_1}(b_{a_1}(a_{b_1}(x1))) 10.24/3.46 B_{A_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> B_{A_1}(a_{a_1}(x1)) 10.24/3.46 B_{A_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> B_{A_1}(a_{b_1}(x1)) 10.24/3.46 10.24/3.46 The TRS R consists of the following rules: 10.24/3.46 10.24/3.46 a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1)))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 10.24/3.46 Q is empty. 10.24/3.46 We have to consider all minimal (P,Q,R)-chains. 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (9) QDPOrderProof (EQUIVALENT) 10.24/3.46 We use the reduction pair processor [LPAR04,JAR06]. 10.24/3.46 10.24/3.46 10.24/3.46 The following pairs can be oriented strictly and are deleted. 10.24/3.46 10.24/3.46 A_{B_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> A_{B_1}(b_{a_1}(a_{a_1}(x1))) 10.24/3.46 A_{B_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> B_{A_1}(a_{a_1}(x1)) 10.24/3.46 B_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> B_{A_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1)))) 10.24/3.46 B_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> B_{A_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1)))) 10.24/3.46 B_{A_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> B_{A_1}(a_{a_1}(x1)) 10.24/3.46 B_{A_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> B_{A_1}(a_{b_1}(x1)) 10.24/3.46 The remaining pairs can at least be oriented weakly. 10.24/3.46 Used ordering: Polynomial interpretation [POLO]: 10.24/3.46 10.24/3.46 POL(A_{B_1}(x_1)) = 1 + x_1 10.24/3.46 POL(B_{A_1}(x_1)) = x_1 10.24/3.46 POL(a_{a_1}(x_1)) = 1 + x_1 10.24/3.46 POL(a_{b_1}(x_1)) = x_1 10.24/3.46 POL(b_{a_1}(x_1)) = 1 + x_1 10.24/3.46 POL(b_{b_1}(x_1)) = 1 + x_1 10.24/3.46 10.24/3.46 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 10.24/3.46 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1)))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 10.24/3.46 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (10) 10.24/3.46 Obligation: 10.24/3.46 Q DP problem: 10.24/3.46 The TRS P consists of the following rules: 10.24/3.46 10.24/3.46 B_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> A_{B_1}(b_{a_1}(a_{a_1}(x1))) 10.24/3.46 B_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> A_{B_1}(b_{a_1}(a_{b_1}(x1))) 10.24/3.46 10.24/3.46 The TRS R consists of the following rules: 10.24/3.46 10.24/3.46 a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1)))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) 10.24/3.46 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) 10.24/3.46 10.24/3.46 Q is empty. 10.24/3.46 We have to consider all minimal (P,Q,R)-chains. 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (11) DependencyGraphProof (EQUIVALENT) 10.24/3.46 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 2 less nodes. 10.24/3.46 ---------------------------------------- 10.24/3.46 10.24/3.46 (12) 10.24/3.46 TRUE 10.36/4.50 EOF