21.77/6.49 YES 21.88/6.53 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 21.88/6.53 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 21.88/6.53 21.88/6.53 21.88/6.53 Termination w.r.t. Q of the given QTRS could be proven: 21.88/6.53 21.88/6.53 (0) QTRS 21.88/6.53 (1) FlatCCProof [EQUIVALENT, 0 ms] 21.88/6.53 (2) QTRS 21.88/6.53 (3) RootLabelingProof [EQUIVALENT, 0 ms] 21.88/6.53 (4) QTRS 21.88/6.53 (5) QTRSRRRProof [EQUIVALENT, 15 ms] 21.88/6.53 (6) QTRS 21.88/6.53 (7) DependencyPairsProof [EQUIVALENT, 19 ms] 21.88/6.53 (8) QDP 21.88/6.53 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 21.88/6.53 (10) AND 21.88/6.53 (11) QDP 21.88/6.53 (12) QDPOrderProof [EQUIVALENT, 85 ms] 21.88/6.53 (13) QDP 21.88/6.53 (14) PisEmptyProof [EQUIVALENT, 0 ms] 21.88/6.53 (15) YES 21.88/6.53 (16) QDP 21.88/6.53 (17) UsableRulesProof [EQUIVALENT, 2 ms] 21.88/6.53 (18) QDP 21.88/6.53 (19) MNOCProof [EQUIVALENT, 0 ms] 21.88/6.53 (20) QDP 21.88/6.53 (21) QDPOrderProof [EQUIVALENT, 5 ms] 21.88/6.53 (22) QDP 21.88/6.53 (23) PisEmptyProof [EQUIVALENT, 0 ms] 21.88/6.53 (24) YES 21.88/6.53 (25) QDP 21.88/6.53 (26) QDPOrderProof [EQUIVALENT, 95 ms] 21.88/6.53 (27) QDP 21.88/6.53 (28) PisEmptyProof [EQUIVALENT, 0 ms] 21.88/6.53 (29) YES 21.88/6.53 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (0) 21.88/6.53 Obligation: 21.88/6.53 Q restricted rewrite system: 21.88/6.53 The TRS R consists of the following rules: 21.88/6.53 21.88/6.53 a(a(a(b(x1)))) -> b(a(b(a(x1)))) 21.88/6.53 a(a(b(b(x1)))) -> a(a(a(b(x1)))) 21.88/6.53 a(a(a(b(x1)))) -> b(b(a(b(x1)))) 21.88/6.53 b(b(b(a(x1)))) -> b(a(b(b(x1)))) 21.88/6.53 21.88/6.53 Q is empty. 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (1) FlatCCProof (EQUIVALENT) 21.88/6.53 We used flat context closure [ROOTLAB] 21.88/6.53 As Q is empty the flat context closure was sound AND complete. 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (2) 21.88/6.53 Obligation: 21.88/6.53 Q restricted rewrite system: 21.88/6.53 The TRS R consists of the following rules: 21.88/6.53 21.88/6.53 a(a(b(b(x1)))) -> a(a(a(b(x1)))) 21.88/6.53 b(b(b(a(x1)))) -> b(a(b(b(x1)))) 21.88/6.53 a(a(a(a(b(x1))))) -> a(b(a(b(a(x1))))) 21.88/6.53 b(a(a(a(b(x1))))) -> b(b(a(b(a(x1))))) 21.88/6.53 a(a(a(a(b(x1))))) -> a(b(b(a(b(x1))))) 21.88/6.53 b(a(a(a(b(x1))))) -> b(b(b(a(b(x1))))) 21.88/6.53 21.88/6.53 Q is empty. 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (3) RootLabelingProof (EQUIVALENT) 21.88/6.53 We used plain root labeling [ROOTLAB] with the following heuristic: 21.88/6.53 LabelAll: All function symbols get labeled 21.88/6.53 21.88/6.53 As Q is empty the root labeling was sound AND complete. 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (4) 21.88/6.53 Obligation: 21.88/6.53 Q restricted rewrite system: 21.88/6.53 The TRS R consists of the following rules: 21.88/6.53 21.88/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.88/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.88/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) 21.88/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.88/6.53 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> a_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.88/6.53 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> a_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 21.88/6.53 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.88/6.53 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.88/6.53 21.88/6.53 Q is empty. 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (5) QTRSRRRProof (EQUIVALENT) 21.88/6.53 Used ordering: 21.88/6.53 Polynomial interpretation [POLO]: 21.88/6.53 21.88/6.53 POL(a_{a_1}(x_1)) = 1 + x_1 21.88/6.53 POL(a_{b_1}(x_1)) = x_1 21.88/6.53 POL(b_{a_1}(x_1)) = 1 + x_1 21.88/6.53 POL(b_{b_1}(x_1)) = 1 + x_1 21.88/6.53 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 21.88/6.53 21.88/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) 21.88/6.53 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> a_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.88/6.53 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> a_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{b_1}(x1))))) 21.88/6.53 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.88/6.53 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.88/6.53 21.88/6.53 21.88/6.53 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (6) 21.88/6.53 Obligation: 21.88/6.53 Q restricted rewrite system: 21.88/6.53 The TRS R consists of the following rules: 21.88/6.53 21.88/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.88/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.88/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.88/6.53 21.88/6.53 Q is empty. 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (7) DependencyPairsProof (EQUIVALENT) 21.88/6.53 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (8) 21.88/6.53 Obligation: 21.88/6.53 Q DP problem: 21.88/6.53 The TRS P consists of the following rules: 21.88/6.53 21.88/6.53 A_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> A_{A_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.88/6.53 A_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> A_{A_1}(a_{b_1}(b_{a_1}(x1))) 21.88/6.53 A_{A_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> A_{A_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.88/6.53 A_{A_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> A_{A_1}(a_{b_1}(b_{b_1}(x1))) 21.88/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{A_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.88/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(b_{b_1}(x1)) 21.88/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(x1) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> B_{B_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> B_{A_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1)))) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> B_{A_1}(a_{a_1}(x1)) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> A_{A_1}(x1) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> B_{B_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> B_{A_1}(a_{b_1}(b_{a_1}(x1))) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> B_{B_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.88/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> B_{A_1}(a_{b_1}(b_{b_1}(x1))) 21.88/6.53 21.88/6.53 The TRS R consists of the following rules: 21.88/6.53 21.88/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.88/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.88/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.88/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.88/6.53 21.88/6.53 Q is empty. 21.88/6.53 We have to consider all minimal (P,Q,R)-chains. 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (9) DependencyGraphProof (EQUIVALENT) 21.88/6.53 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 3 SCCs with 12 less nodes. 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (10) 21.88/6.53 Complex Obligation (AND) 21.88/6.53 21.88/6.53 ---------------------------------------- 21.88/6.53 21.88/6.53 (11) 21.88/6.53 Obligation: 21.88/6.53 Q DP problem: 21.88/6.53 The TRS P consists of the following rules: 21.88/6.53 21.88/6.53 A_{A_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> A_{A_1}(a_{b_1}(b_{b_1}(x1))) 21.88/6.53 A_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> A_{A_1}(a_{b_1}(b_{a_1}(x1))) 21.88/6.53 21.88/6.53 The TRS R consists of the following rules: 21.88/6.53 21.88/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.88/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.88/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.92/6.53 21.92/6.53 Q is empty. 21.92/6.53 We have to consider all minimal (P,Q,R)-chains. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (12) QDPOrderProof (EQUIVALENT) 21.92/6.53 We use the reduction pair processor [LPAR04,JAR06]. 21.92/6.53 21.92/6.53 21.92/6.53 The following pairs can be oriented strictly and are deleted. 21.92/6.53 21.92/6.53 A_{A_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> A_{A_1}(a_{b_1}(b_{b_1}(x1))) 21.92/6.53 A_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> A_{A_1}(a_{b_1}(b_{a_1}(x1))) 21.92/6.53 The remaining pairs can at least be oriented weakly. 21.92/6.53 Used ordering: Polynomial Order [NEGPOLO,POLO] with Interpretation: 21.92/6.53 21.92/6.53 POL( A_{A_1}_1(x_1) ) = 2x_1 21.92/6.53 POL( a_{b_1}_1(x_1) ) = 2x_1 + 2 21.92/6.53 POL( b_{b_1}_1(x_1) ) = 2x_1 + 2 21.92/6.53 POL( b_{a_1}_1(x_1) ) = 2x_1 + 2 21.92/6.53 POL( a_{a_1}_1(x_1) ) = 2x_1 + 2 21.92/6.53 21.92/6.53 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 21.92/6.53 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.92/6.53 21.92/6.53 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (13) 21.92/6.53 Obligation: 21.92/6.53 Q DP problem: 21.92/6.53 P is empty. 21.92/6.53 The TRS R consists of the following rules: 21.92/6.53 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.92/6.53 21.92/6.53 Q is empty. 21.92/6.53 We have to consider all minimal (P,Q,R)-chains. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (14) PisEmptyProof (EQUIVALENT) 21.92/6.53 The TRS P is empty. Hence, there is no (P,Q,R) chain. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (15) 21.92/6.53 YES 21.92/6.53 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (16) 21.92/6.53 Obligation: 21.92/6.53 Q DP problem: 21.92/6.53 The TRS P consists of the following rules: 21.92/6.53 21.92/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(x1) 21.92/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(b_{b_1}(x1)) 21.92/6.53 21.92/6.53 The TRS R consists of the following rules: 21.92/6.53 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.92/6.53 21.92/6.53 Q is empty. 21.92/6.53 We have to consider all minimal (P,Q,R)-chains. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (17) UsableRulesProof (EQUIVALENT) 21.92/6.53 We can use the usable rules and reduction pair processor [LPAR04] with the Ce-compatible extension of the polynomial order that maps every function symbol to the sum of its arguments. Then, we can delete all non-usable rules [FROCOS05] from R. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (18) 21.92/6.53 Obligation: 21.92/6.53 Q DP problem: 21.92/6.53 The TRS P consists of the following rules: 21.92/6.53 21.92/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(x1) 21.92/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(b_{b_1}(x1)) 21.92/6.53 21.92/6.53 The TRS R consists of the following rules: 21.92/6.53 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 21.92/6.53 Q is empty. 21.92/6.53 We have to consider all minimal (P,Q,R)-chains. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (19) MNOCProof (EQUIVALENT) 21.92/6.53 We use the modular non-overlap check [LPAR04] to enlarge Q to all left-hand sides of R. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (20) 21.92/6.53 Obligation: 21.92/6.53 Q DP problem: 21.92/6.53 The TRS P consists of the following rules: 21.92/6.53 21.92/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(x1) 21.92/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(b_{b_1}(x1)) 21.92/6.53 21.92/6.53 The TRS R consists of the following rules: 21.92/6.53 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 21.92/6.53 The set Q consists of the following terms: 21.92/6.53 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x0)))) 21.92/6.53 21.92/6.53 We have to consider all minimal (P,Q,R)-chains. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (21) QDPOrderProof (EQUIVALENT) 21.92/6.53 We use the reduction pair processor [LPAR04,JAR06]. 21.92/6.53 21.92/6.53 21.92/6.53 The following pairs can be oriented strictly and are deleted. 21.92/6.53 21.92/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(x1) 21.92/6.53 B_{B_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> B_{B_1}(b_{b_1}(x1)) 21.92/6.53 The remaining pairs can at least be oriented weakly. 21.92/6.53 Used ordering: Polynomial interpretation [POLO]: 21.92/6.53 21.92/6.53 POL(B_{B_1}(x_1)) = x_1 21.92/6.53 POL(a_{b_1}(x_1)) = x_1 21.92/6.53 POL(b_{a_1}(x_1)) = 1 + x_1 21.92/6.53 POL(b_{b_1}(x_1)) = x_1 21.92/6.53 21.92/6.53 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 21.92/6.53 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 21.92/6.53 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (22) 21.92/6.53 Obligation: 21.92/6.53 Q DP problem: 21.92/6.53 P is empty. 21.92/6.53 The TRS R consists of the following rules: 21.92/6.53 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 21.92/6.53 The set Q consists of the following terms: 21.92/6.53 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x0)))) 21.92/6.53 21.92/6.53 We have to consider all minimal (P,Q,R)-chains. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (23) PisEmptyProof (EQUIVALENT) 21.92/6.53 The TRS P is empty. Hence, there is no (P,Q,R) chain. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (24) 21.92/6.53 YES 21.92/6.53 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (25) 21.92/6.53 Obligation: 21.92/6.53 Q DP problem: 21.92/6.53 The TRS P consists of the following rules: 21.92/6.53 21.92/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> B_{A_1}(a_{a_1}(x1)) 21.92/6.53 21.92/6.53 The TRS R consists of the following rules: 21.92/6.53 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.92/6.53 21.92/6.53 Q is empty. 21.92/6.53 We have to consider all minimal (P,Q,R)-chains. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (26) QDPOrderProof (EQUIVALENT) 21.92/6.53 We use the reduction pair processor [LPAR04,JAR06]. 21.92/6.53 21.92/6.53 21.92/6.53 The following pairs can be oriented strictly and are deleted. 21.92/6.53 21.92/6.53 B_{A_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> B_{A_1}(a_{a_1}(x1)) 21.92/6.53 The remaining pairs can at least be oriented weakly. 21.92/6.53 Used ordering: Polynomial Order [NEGPOLO,POLO] with Interpretation: 21.92/6.53 21.92/6.53 POL( B_{A_1}_1(x_1) ) = 2x_1 + 2 21.92/6.53 POL( a_{a_1}_1(x_1) ) = x_1 + 2 21.92/6.53 POL( a_{b_1}_1(x_1) ) = max{0, x_1 - 1} 21.92/6.53 POL( b_{b_1}_1(x_1) ) = x_1 + 2 21.92/6.53 POL( b_{a_1}_1(x_1) ) = x_1 + 1 21.92/6.53 21.92/6.53 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 21.92/6.53 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 21.92/6.53 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (27) 21.92/6.53 Obligation: 21.92/6.53 Q DP problem: 21.92/6.53 P is empty. 21.92/6.53 The TRS R consists of the following rules: 21.92/6.53 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1)))) 21.92/6.53 a_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(a_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{a_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{a_1}(x1))))) 21.92/6.53 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(b_{b_1}(x1))))) -> b_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(b_{b_1}(x1))))) 21.92/6.53 21.92/6.53 Q is empty. 21.92/6.53 We have to consider all minimal (P,Q,R)-chains. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (28) PisEmptyProof (EQUIVALENT) 21.92/6.53 The TRS P is empty. Hence, there is no (P,Q,R) chain. 21.92/6.53 ---------------------------------------- 21.92/6.53 21.92/6.53 (29) 21.92/6.53 YES 21.92/6.58 EOF