21.15/6.31 YES 21.15/6.34 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 21.15/6.34 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 21.15/6.34 21.15/6.34 21.15/6.34 Termination w.r.t. Q of the given QTRS could be proven: 21.15/6.34 21.15/6.34 (0) QTRS 21.15/6.34 (1) QTRS Reverse [EQUIVALENT, 0 ms] 21.15/6.34 (2) QTRS 21.15/6.34 (3) FlatCCProof [EQUIVALENT, 0 ms] 21.15/6.34 (4) QTRS 21.15/6.34 (5) RootLabelingProof [EQUIVALENT, 0 ms] 21.15/6.34 (6) QTRS 21.15/6.34 (7) QTRSRRRProof [EQUIVALENT, 54 ms] 21.15/6.34 (8) QTRS 21.15/6.34 (9) DependencyPairsProof [EQUIVALENT, 0 ms] 21.15/6.34 (10) QDP 21.15/6.34 (11) DependencyGraphProof [EQUIVALENT, 0 ms] 21.15/6.34 (12) AND 21.15/6.34 (13) QDP 21.15/6.34 (14) UsableRulesProof [EQUIVALENT, 2 ms] 21.15/6.34 (15) QDP 21.15/6.34 (16) QDPSizeChangeProof [EQUIVALENT, 1 ms] 21.15/6.34 (17) YES 21.15/6.34 (18) QDP 21.15/6.34 (19) QDPOrderProof [EQUIVALENT, 48 ms] 21.15/6.34 (20) QDP 21.15/6.34 (21) UsableRulesProof [EQUIVALENT, 0 ms] 21.15/6.34 (22) QDP 21.15/6.34 (23) QDPSizeChangeProof [EQUIVALENT, 0 ms] 21.15/6.34 (24) YES 21.15/6.34 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (0) 21.15/6.34 Obligation: 21.15/6.34 Q restricted rewrite system: 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 a(x1) -> x1 21.15/6.34 a(b(x1)) -> b(b(a(c(x1)))) 21.15/6.34 b(x1) -> x1 21.15/6.34 c(b(c(x1))) -> a(x1) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (1) QTRS Reverse (EQUIVALENT) 21.15/6.34 We applied the QTRS Reverse Processor [REVERSE]. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (2) 21.15/6.34 Obligation: 21.15/6.34 Q restricted rewrite system: 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 a(x1) -> x1 21.15/6.34 b(a(x1)) -> c(a(b(b(x1)))) 21.15/6.34 b(x1) -> x1 21.15/6.34 c(b(c(x1))) -> a(x1) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (3) FlatCCProof (EQUIVALENT) 21.15/6.34 We used flat context closure [ROOTLAB] 21.15/6.34 As Q is empty the flat context closure was sound AND complete. 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (4) 21.15/6.34 Obligation: 21.15/6.34 Q restricted rewrite system: 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 a(a(x1)) -> a(x1) 21.15/6.34 b(a(x1)) -> b(x1) 21.15/6.34 c(a(x1)) -> c(x1) 21.15/6.34 a(b(a(x1))) -> a(c(a(b(b(x1))))) 21.15/6.34 b(b(a(x1))) -> b(c(a(b(b(x1))))) 21.15/6.34 c(b(a(x1))) -> c(c(a(b(b(x1))))) 21.15/6.34 a(b(x1)) -> a(x1) 21.15/6.34 b(b(x1)) -> b(x1) 21.15/6.34 c(b(x1)) -> c(x1) 21.15/6.34 a(c(b(c(x1)))) -> a(a(x1)) 21.15/6.34 b(c(b(c(x1)))) -> b(a(x1)) 21.15/6.34 c(c(b(c(x1)))) -> c(a(x1)) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (5) RootLabelingProof (EQUIVALENT) 21.15/6.34 We used plain root labeling [ROOTLAB] with the following heuristic: 21.15/6.34 LabelAll: All function symbols get labeled 21.15/6.34 21.15/6.34 As Q is empty the root labeling was sound AND complete. 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (6) 21.15/6.34 Obligation: 21.15/6.34 Q restricted rewrite system: 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 a_{a_1}(a_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{a_1}(a_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{a_1}(a_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 b_{a_1}(a_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{a_1}(a_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{a_1}(a_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 c_{a_1}(a_{a_1}(x1)) -> c_{a_1}(x1) 21.15/6.34 c_{a_1}(a_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 c_{a_1}(a_{c_1}(x1)) -> c_{c_1}(x1) 21.15/6.34 a_{b_1}(b_{a_1}(a_{a_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{b_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{c_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{a_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{b_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{c_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 c_{b_1}(b_{a_1}(a_{a_1}(x1))) -> c_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 c_{b_1}(b_{a_1}(a_{b_1}(x1))) -> c_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 c_{b_1}(b_{a_1}(a_{c_1}(x1))) -> c_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{b_1}(b_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 b_{b_1}(b_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{b_1}(b_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{b_1}(b_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 c_{b_1}(b_{a_1}(x1)) -> c_{a_1}(x1) 21.15/6.34 c_{b_1}(b_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 c_{b_1}(b_{c_1}(x1)) -> c_{c_1}(x1) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{b_1}(x1)))) -> a_{a_1}(a_{b_1}(x1)) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{c_1}(x1)))) -> a_{a_1}(a_{c_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{c_1}(x1)))) -> b_{a_1}(a_{c_1}(x1)) 21.15/6.34 c_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> c_{a_1}(a_{a_1}(x1)) 21.15/6.34 c_{c_1}(c_{b_1}(b_{c_1}(c_{b_1}(x1)))) -> c_{a_1}(a_{b_1}(x1)) 21.15/6.34 c_{c_1}(c_{b_1}(b_{c_1}(c_{c_1}(x1)))) -> c_{a_1}(a_{c_1}(x1)) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (7) QTRSRRRProof (EQUIVALENT) 21.15/6.34 Used ordering: 21.15/6.34 Polynomial interpretation [POLO]: 21.15/6.34 21.15/6.34 POL(a_{a_1}(x_1)) = 2 + x_1 21.15/6.34 POL(a_{b_1}(x_1)) = 2 + x_1 21.15/6.34 POL(a_{c_1}(x_1)) = 2 + x_1 21.15/6.34 POL(b_{a_1}(x_1)) = x_1 21.15/6.34 POL(b_{b_1}(x_1)) = x_1 21.15/6.34 POL(b_{c_1}(x_1)) = x_1 21.15/6.34 POL(c_{a_1}(x_1)) = x_1 21.15/6.34 POL(c_{b_1}(x_1)) = 2 + x_1 21.15/6.34 POL(c_{c_1}(x_1)) = 1 + x_1 21.15/6.34 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 21.15/6.34 21.15/6.34 a_{a_1}(a_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{a_1}(a_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{a_1}(a_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 b_{a_1}(a_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{a_1}(a_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{a_1}(a_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 c_{a_1}(a_{a_1}(x1)) -> c_{a_1}(x1) 21.15/6.34 c_{a_1}(a_{c_1}(x1)) -> c_{c_1}(x1) 21.15/6.34 c_{b_1}(b_{a_1}(a_{a_1}(x1))) -> c_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 c_{b_1}(b_{a_1}(a_{b_1}(x1))) -> c_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 c_{b_1}(b_{a_1}(a_{c_1}(x1))) -> c_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 c_{b_1}(b_{a_1}(x1)) -> c_{a_1}(x1) 21.15/6.34 c_{b_1}(b_{c_1}(x1)) -> c_{c_1}(x1) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{b_1}(x1)))) -> a_{a_1}(a_{b_1}(x1)) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{c_1}(x1)))) -> a_{a_1}(a_{c_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{c_1}(x1)))) -> b_{a_1}(a_{c_1}(x1)) 21.15/6.34 c_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> c_{a_1}(a_{a_1}(x1)) 21.15/6.34 c_{c_1}(c_{b_1}(b_{c_1}(c_{b_1}(x1)))) -> c_{a_1}(a_{b_1}(x1)) 21.15/6.34 c_{c_1}(c_{b_1}(b_{c_1}(c_{c_1}(x1)))) -> c_{a_1}(a_{c_1}(x1)) 21.15/6.34 21.15/6.34 21.15/6.34 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (8) 21.15/6.34 Obligation: 21.15/6.34 Q restricted rewrite system: 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 c_{a_1}(a_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{a_1}(a_{a_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{b_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{c_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{a_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{b_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{c_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{b_1}(b_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 b_{b_1}(b_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{b_1}(b_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{b_1}(b_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 c_{b_1}(b_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (9) DependencyPairsProof (EQUIVALENT) 21.15/6.34 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (10) 21.15/6.34 Obligation: 21.15/6.34 Q DP problem: 21.15/6.34 The TRS P consists of the following rules: 21.15/6.34 21.15/6.34 C_{A_1}(a_{b_1}(x1)) -> C_{B_1}(x1) 21.15/6.34 A_{B_1}(b_{a_1}(a_{a_1}(x1))) -> A_{C_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{a_1}(x1))) -> C_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{a_1}(x1))) -> A_{B_1}(b_{b_1}(b_{a_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{a_1}(x1))) -> B_{B_1}(b_{a_1}(x1)) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> A_{C_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> C_{A_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> A_{B_1}(b_{b_1}(b_{b_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(b_{b_1}(x1)) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(x1) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> A_{C_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> C_{A_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1)))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> A_{B_1}(b_{b_1}(b_{c_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{B_1}(b_{c_1}(x1)) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{C_1}(x1) 21.15/6.34 B_{B_1}(b_{a_1}(a_{a_1}(x1))) -> B_{C_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{a_1}(x1))) -> C_{A_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1)))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{a_1}(x1))) -> A_{B_1}(b_{b_1}(b_{a_1}(x1))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{a_1}(x1))) -> B_{B_1}(b_{a_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{C_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> C_{A_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1)))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> A_{B_1}(b_{b_1}(b_{b_1}(x1))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(b_{b_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(x1) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{C_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> C_{A_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1)))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> A_{B_1}(b_{b_1}(b_{c_1}(x1))) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{B_1}(b_{c_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{C_1}(x1) 21.15/6.34 A_{B_1}(b_{b_1}(x1)) -> A_{B_1}(x1) 21.15/6.34 A_{B_1}(b_{c_1}(x1)) -> A_{C_1}(x1) 21.15/6.34 C_{B_1}(b_{b_1}(x1)) -> C_{B_1}(x1) 21.15/6.34 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 c_{a_1}(a_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{a_1}(a_{a_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{b_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{c_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{a_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{b_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{c_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{b_1}(b_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 b_{b_1}(b_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{b_1}(b_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{b_1}(b_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 c_{b_1}(b_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 We have to consider all minimal (P,Q,R)-chains. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (11) DependencyGraphProof (EQUIVALENT) 21.15/6.34 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 2 SCCs with 16 less nodes. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (12) 21.15/6.34 Complex Obligation (AND) 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (13) 21.15/6.34 Obligation: 21.15/6.34 Q DP problem: 21.15/6.34 The TRS P consists of the following rules: 21.15/6.34 21.15/6.34 C_{B_1}(b_{b_1}(x1)) -> C_{B_1}(x1) 21.15/6.34 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 c_{a_1}(a_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{a_1}(a_{a_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{b_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{c_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{a_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{b_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{c_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{b_1}(b_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 b_{b_1}(b_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{b_1}(b_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{b_1}(b_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 c_{b_1}(b_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 We have to consider all minimal (P,Q,R)-chains. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (14) UsableRulesProof (EQUIVALENT) 21.15/6.34 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. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (15) 21.15/6.34 Obligation: 21.15/6.34 Q DP problem: 21.15/6.34 The TRS P consists of the following rules: 21.15/6.34 21.15/6.34 C_{B_1}(b_{b_1}(x1)) -> C_{B_1}(x1) 21.15/6.34 21.15/6.34 R is empty. 21.15/6.34 Q is empty. 21.15/6.34 We have to consider all minimal (P,Q,R)-chains. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (16) QDPSizeChangeProof (EQUIVALENT) 21.15/6.34 By using the subterm criterion [SUBTERM_CRITERION] together with the size-change analysis [AAECC05] we have proven that there are no infinite chains for this DP problem. 21.15/6.34 21.15/6.34 From the DPs we obtained the following set of size-change graphs: 21.15/6.34 *C_{B_1}(b_{b_1}(x1)) -> C_{B_1}(x1) 21.15/6.34 The graph contains the following edges 1 > 1 21.15/6.34 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (17) 21.15/6.34 YES 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (18) 21.15/6.34 Obligation: 21.15/6.34 Q DP problem: 21.15/6.34 The TRS P consists of the following rules: 21.15/6.34 21.15/6.34 A_{B_1}(b_{a_1}(a_{a_1}(x1))) -> B_{B_1}(b_{a_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{a_1}(x1))) -> A_{B_1}(b_{b_1}(b_{a_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{a_1}(x1))) -> A_{B_1}(b_{b_1}(b_{a_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> A_{B_1}(b_{b_1}(b_{b_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(b_{b_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{a_1}(x1))) -> B_{B_1}(b_{a_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> A_{B_1}(b_{b_1}(b_{b_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(x1) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(b_{b_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(x1) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> A_{B_1}(b_{b_1}(b_{c_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> A_{B_1}(b_{b_1}(b_{c_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{B_1}(b_{c_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{B_1}(b_{c_1}(x1)) 21.15/6.34 A_{B_1}(b_{b_1}(x1)) -> A_{B_1}(x1) 21.15/6.34 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 c_{a_1}(a_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{a_1}(a_{a_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{b_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{c_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{a_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{b_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{c_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{b_1}(b_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 b_{b_1}(b_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{b_1}(b_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{b_1}(b_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 c_{b_1}(b_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 We have to consider all minimal (P,Q,R)-chains. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (19) QDPOrderProof (EQUIVALENT) 21.15/6.34 We use the reduction pair processor [LPAR04,JAR06]. 21.15/6.34 21.15/6.34 21.15/6.34 The following pairs can be oriented strictly and are deleted. 21.15/6.34 21.15/6.34 A_{B_1}(b_{a_1}(a_{a_1}(x1))) -> B_{B_1}(b_{a_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{a_1}(x1))) -> A_{B_1}(b_{b_1}(b_{a_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{a_1}(x1))) -> A_{B_1}(b_{b_1}(b_{a_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> A_{B_1}(b_{b_1}(b_{b_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(b_{b_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{a_1}(x1))) -> B_{B_1}(b_{a_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> A_{B_1}(b_{b_1}(b_{b_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(x1) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(b_{b_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{b_1}(x1))) -> B_{B_1}(x1) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> A_{B_1}(b_{b_1}(b_{c_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> A_{B_1}(b_{b_1}(b_{c_1}(x1))) 21.15/6.34 A_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{B_1}(b_{c_1}(x1)) 21.15/6.34 B_{B_1}(b_{a_1}(a_{c_1}(x1))) -> B_{B_1}(b_{c_1}(x1)) 21.15/6.34 The remaining pairs can at least be oriented weakly. 21.15/6.34 Used ordering: Polynomial interpretation [POLO]: 21.15/6.34 21.15/6.34 POL(A_{B_1}(x_1)) = x_1 21.15/6.34 POL(B_{B_1}(x_1)) = x_1 21.15/6.34 POL(a_{a_1}(x_1)) = 1 + x_1 21.15/6.34 POL(a_{b_1}(x_1)) = 1 + x_1 21.15/6.34 POL(a_{c_1}(x_1)) = 1 + x_1 21.15/6.34 POL(b_{a_1}(x_1)) = x_1 21.15/6.34 POL(b_{b_1}(x_1)) = x_1 21.15/6.34 POL(b_{c_1}(x_1)) = x_1 21.15/6.34 POL(c_{a_1}(x_1)) = x_1 21.15/6.34 POL(c_{b_1}(x_1)) = 1 + x_1 21.15/6.34 21.15/6.34 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 21.15/6.34 21.15/6.34 b_{b_1}(b_{a_1}(a_{a_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{b_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{c_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{b_1}(b_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{b_1}(b_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 21.15/6.34 a_{b_1}(b_{a_1}(a_{a_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{b_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{c_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 a_{b_1}(b_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{b_1}(b_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 c_{a_1}(a_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 21.15/6.34 c_{b_1}(b_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (20) 21.15/6.34 Obligation: 21.15/6.34 Q DP problem: 21.15/6.34 The TRS P consists of the following rules: 21.15/6.34 21.15/6.34 A_{B_1}(b_{b_1}(x1)) -> A_{B_1}(x1) 21.15/6.34 21.15/6.34 The TRS R consists of the following rules: 21.15/6.34 21.15/6.34 c_{a_1}(a_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{a_1}(a_{a_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{b_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(a_{c_1}(x1))) -> a_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{a_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{b_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{b_1}(x1))))) 21.15/6.34 b_{b_1}(b_{a_1}(a_{c_1}(x1))) -> b_{c_1}(c_{a_1}(a_{b_1}(b_{b_1}(b_{c_1}(x1))))) 21.15/6.34 a_{b_1}(b_{a_1}(x1)) -> a_{a_1}(x1) 21.15/6.34 a_{b_1}(b_{b_1}(x1)) -> a_{b_1}(x1) 21.15/6.34 a_{b_1}(b_{c_1}(x1)) -> a_{c_1}(x1) 21.15/6.34 b_{b_1}(b_{a_1}(x1)) -> b_{a_1}(x1) 21.15/6.34 b_{b_1}(b_{b_1}(x1)) -> b_{b_1}(x1) 21.15/6.34 b_{b_1}(b_{c_1}(x1)) -> b_{c_1}(x1) 21.15/6.34 c_{b_1}(b_{b_1}(x1)) -> c_{b_1}(x1) 21.15/6.34 a_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 21.15/6.34 b_{c_1}(c_{b_1}(b_{c_1}(c_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 21.15/6.34 21.15/6.34 Q is empty. 21.15/6.34 We have to consider all minimal (P,Q,R)-chains. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (21) UsableRulesProof (EQUIVALENT) 21.15/6.34 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. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (22) 21.15/6.34 Obligation: 21.15/6.34 Q DP problem: 21.15/6.34 The TRS P consists of the following rules: 21.15/6.34 21.15/6.34 A_{B_1}(b_{b_1}(x1)) -> A_{B_1}(x1) 21.15/6.34 21.15/6.34 R is empty. 21.15/6.34 Q is empty. 21.15/6.34 We have to consider all minimal (P,Q,R)-chains. 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (23) QDPSizeChangeProof (EQUIVALENT) 21.15/6.34 By using the subterm criterion [SUBTERM_CRITERION] together with the size-change analysis [AAECC05] we have proven that there are no infinite chains for this DP problem. 21.15/6.34 21.15/6.34 From the DPs we obtained the following set of size-change graphs: 21.15/6.34 *A_{B_1}(b_{b_1}(x1)) -> A_{B_1}(x1) 21.15/6.34 The graph contains the following edges 1 > 1 21.15/6.34 21.15/6.34 21.15/6.34 ---------------------------------------- 21.15/6.34 21.15/6.34 (24) 21.15/6.34 YES 21.40/6.42 EOF