5.72/2.31 YES 6.09/2.35 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 6.09/2.35 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 6.09/2.35 6.09/2.35 6.09/2.35 Termination w.r.t. Q of the given QTRS could be proven: 6.09/2.35 6.09/2.35 (0) QTRS 6.09/2.35 (1) FlatCCProof [EQUIVALENT, 0 ms] 6.09/2.35 (2) QTRS 6.09/2.35 (3) RootLabelingProof [EQUIVALENT, 0 ms] 6.09/2.35 (4) QTRS 6.09/2.35 (5) QTRSRRRProof [EQUIVALENT, 32 ms] 6.09/2.35 (6) QTRS 6.09/2.35 (7) QTRSRRRProof [EQUIVALENT, 2 ms] 6.09/2.35 (8) QTRS 6.09/2.35 (9) RisEmptyProof [EQUIVALENT, 0 ms] 6.09/2.35 (10) YES 6.09/2.35 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (0) 6.09/2.35 Obligation: 6.09/2.35 Q restricted rewrite system: 6.09/2.35 The TRS R consists of the following rules: 6.09/2.35 6.09/2.35 b(b(b(x1))) -> a(x1) 6.09/2.35 a(a(a(x1))) -> b(b(x1)) 6.09/2.35 a(a(x1)) -> a(b(a(x1))) 6.09/2.35 6.09/2.35 Q is empty. 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (1) FlatCCProof (EQUIVALENT) 6.09/2.35 We used flat context closure [ROOTLAB] 6.09/2.35 As Q is empty the flat context closure was sound AND complete. 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (2) 6.09/2.35 Obligation: 6.09/2.35 Q restricted rewrite system: 6.09/2.35 The TRS R consists of the following rules: 6.09/2.35 6.09/2.35 a(a(x1)) -> a(b(a(x1))) 6.09/2.35 b(b(b(b(x1)))) -> b(a(x1)) 6.09/2.35 a(b(b(b(x1)))) -> a(a(x1)) 6.09/2.35 b(a(a(a(x1)))) -> b(b(b(x1))) 6.09/2.35 a(a(a(a(x1)))) -> a(b(b(x1))) 6.09/2.35 6.09/2.35 Q is empty. 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (3) RootLabelingProof (EQUIVALENT) 6.09/2.35 We used plain root labeling [ROOTLAB] with the following heuristic: 6.09/2.35 LabelAll: All function symbols get labeled 6.09/2.35 6.09/2.35 As Q is empty the root labeling was sound AND complete. 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (4) 6.09/2.35 Obligation: 6.09/2.35 Q restricted rewrite system: 6.09/2.35 The TRS R consists of the following rules: 6.09/2.35 6.09/2.35 a_{a_1}(a_{a_1}(x1)) -> a_{b_1}(b_{a_1}(a_{a_1}(x1))) 6.09/2.35 a_{a_1}(a_{b_1}(x1)) -> a_{b_1}(b_{a_1}(a_{b_1}(x1))) 6.09/2.35 b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 6.09/2.35 b_{b_1}(b_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(x1)) 6.09/2.35 a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 6.09/2.35 a_{b_1}(b_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{b_1}(x1)) 6.09/2.35 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1)))) -> b_{b_1}(b_{b_1}(b_{a_1}(x1))) 6.09/2.35 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1)))) -> b_{b_1}(b_{b_1}(b_{b_1}(x1))) 6.09/2.35 a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1)))) -> a_{b_1}(b_{b_1}(b_{a_1}(x1))) 6.09/2.35 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1)))) -> a_{b_1}(b_{b_1}(b_{b_1}(x1))) 6.09/2.35 6.09/2.35 Q is empty. 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (5) QTRSRRRProof (EQUIVALENT) 6.09/2.35 Used ordering: 6.09/2.35 Polynomial interpretation [POLO]: 6.09/2.35 6.09/2.35 POL(a_{a_1}(x_1)) = 7 + x_1 6.09/2.35 POL(a_{b_1}(x_1)) = 7 + x_1 6.09/2.35 POL(b_{a_1}(x_1)) = x_1 6.09/2.35 POL(b_{b_1}(x_1)) = 5 + x_1 6.09/2.35 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 6.09/2.35 6.09/2.35 b_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> b_{a_1}(a_{a_1}(x1)) 6.09/2.35 b_{b_1}(b_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> b_{a_1}(a_{b_1}(x1)) 6.09/2.35 a_{b_1}(b_{b_1}(b_{b_1}(b_{a_1}(x1)))) -> a_{a_1}(a_{a_1}(x1)) 6.09/2.35 a_{b_1}(b_{b_1}(b_{b_1}(b_{b_1}(x1)))) -> a_{a_1}(a_{b_1}(x1)) 6.09/2.35 b_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1)))) -> b_{b_1}(b_{b_1}(b_{a_1}(x1))) 6.09/2.35 b_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1)))) -> b_{b_1}(b_{b_1}(b_{b_1}(x1))) 6.09/2.35 a_{a_1}(a_{a_1}(a_{a_1}(a_{a_1}(x1)))) -> a_{b_1}(b_{b_1}(b_{a_1}(x1))) 6.09/2.35 a_{a_1}(a_{a_1}(a_{a_1}(a_{b_1}(x1)))) -> a_{b_1}(b_{b_1}(b_{b_1}(x1))) 6.09/2.35 6.09/2.35 6.09/2.35 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (6) 6.09/2.35 Obligation: 6.09/2.35 Q restricted rewrite system: 6.09/2.35 The TRS R consists of the following rules: 6.09/2.35 6.09/2.35 a_{a_1}(a_{a_1}(x1)) -> a_{b_1}(b_{a_1}(a_{a_1}(x1))) 6.09/2.35 a_{a_1}(a_{b_1}(x1)) -> a_{b_1}(b_{a_1}(a_{b_1}(x1))) 6.09/2.35 6.09/2.35 Q is empty. 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (7) QTRSRRRProof (EQUIVALENT) 6.09/2.35 Used ordering: 6.09/2.35 Polynomial interpretation [POLO]: 6.09/2.35 6.09/2.35 POL(a_{a_1}(x_1)) = 1 + x_1 6.09/2.35 POL(a_{b_1}(x_1)) = x_1 6.09/2.35 POL(b_{a_1}(x_1)) = x_1 6.09/2.35 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 6.09/2.35 6.09/2.35 a_{a_1}(a_{a_1}(x1)) -> a_{b_1}(b_{a_1}(a_{a_1}(x1))) 6.09/2.35 a_{a_1}(a_{b_1}(x1)) -> a_{b_1}(b_{a_1}(a_{b_1}(x1))) 6.09/2.35 6.09/2.35 6.09/2.35 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (8) 6.09/2.35 Obligation: 6.09/2.35 Q restricted rewrite system: 6.09/2.35 R is empty. 6.09/2.35 Q is empty. 6.09/2.35 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (9) RisEmptyProof (EQUIVALENT) 6.09/2.35 The TRS R is empty. Hence, termination is trivially proven. 6.09/2.35 ---------------------------------------- 6.09/2.35 6.09/2.35 (10) 6.09/2.35 YES 6.32/2.42 EOF