5.37/2.12 YES 5.37/2.14 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 5.37/2.14 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 5.37/2.14 5.37/2.14 5.37/2.14 Termination w.r.t. Q of the given QTRS could be proven: 5.37/2.14 5.37/2.14 (0) QTRS 5.37/2.14 (1) FlatCCProof [EQUIVALENT, 0 ms] 5.37/2.14 (2) QTRS 5.37/2.14 (3) RootLabelingProof [EQUIVALENT, 0 ms] 5.37/2.14 (4) QTRS 5.37/2.14 (5) QTRSRRRProof [EQUIVALENT, 3 ms] 5.37/2.14 (6) QTRS 5.37/2.14 (7) QTRSRRRProof [EQUIVALENT, 0 ms] 5.37/2.14 (8) QTRS 5.37/2.14 (9) RisEmptyProof [EQUIVALENT, 2 ms] 5.37/2.14 (10) YES 5.37/2.14 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (0) 5.37/2.14 Obligation: 5.37/2.14 Q restricted rewrite system: 5.37/2.14 The TRS R consists of the following rules: 5.37/2.14 5.37/2.14 a(a(x1)) -> a(b(a(x1))) 5.37/2.14 b(b(x1)) -> a(a(x1)) 5.37/2.14 a(b(b(a(x1)))) -> x1 5.37/2.14 5.37/2.14 Q is empty. 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (1) FlatCCProof (EQUIVALENT) 5.37/2.14 We used flat context closure [ROOTLAB] 5.37/2.14 As Q is empty the flat context closure was sound AND complete. 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (2) 5.37/2.14 Obligation: 5.37/2.14 Q restricted rewrite system: 5.37/2.14 The TRS R consists of the following rules: 5.37/2.14 5.37/2.14 a(a(x1)) -> a(b(a(x1))) 5.37/2.14 a(b(b(x1))) -> a(a(a(x1))) 5.37/2.14 b(b(b(x1))) -> b(a(a(x1))) 5.37/2.14 a(a(b(b(a(x1))))) -> a(x1) 5.37/2.14 b(a(b(b(a(x1))))) -> b(x1) 5.37/2.14 5.37/2.14 Q is empty. 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (3) RootLabelingProof (EQUIVALENT) 5.37/2.14 We used plain root labeling [ROOTLAB] with the following heuristic: 5.37/2.14 LabelAll: All function symbols get labeled 5.37/2.14 5.37/2.14 As Q is empty the root labeling was sound AND complete. 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (4) 5.37/2.14 Obligation: 5.37/2.14 Q restricted rewrite system: 5.37/2.14 The TRS R consists of the following rules: 5.37/2.14 5.37/2.14 a_{a_1}(a_{a_1}(x1)) -> a_{b_1}(b_{a_1}(a_{a_1}(x1))) 5.37/2.14 a_{a_1}(a_{b_1}(x1)) -> a_{b_1}(b_{a_1}(a_{b_1}(x1))) 5.37/2.14 a_{b_1}(b_{b_1}(b_{a_1}(x1))) -> a_{a_1}(a_{a_1}(a_{a_1}(x1))) 5.37/2.14 a_{b_1}(b_{b_1}(b_{b_1}(x1))) -> a_{a_1}(a_{a_1}(a_{b_1}(x1))) 5.37/2.14 b_{b_1}(b_{b_1}(b_{a_1}(x1))) -> b_{a_1}(a_{a_1}(a_{a_1}(x1))) 5.37/2.14 b_{b_1}(b_{b_1}(b_{b_1}(x1))) -> b_{a_1}(a_{a_1}(a_{b_1}(x1))) 5.37/2.14 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> a_{a_1}(x1) 5.37/2.14 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> a_{b_1}(x1) 5.37/2.14 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> b_{a_1}(x1) 5.37/2.14 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(x1) 5.37/2.14 5.37/2.14 Q is empty. 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (5) QTRSRRRProof (EQUIVALENT) 5.37/2.14 Used ordering: 5.37/2.14 Polynomial interpretation [POLO]: 5.37/2.14 5.37/2.14 POL(a_{a_1}(x_1)) = 1 + x_1 5.37/2.14 POL(a_{b_1}(x_1)) = 1 + x_1 5.37/2.14 POL(b_{a_1}(x_1)) = x_1 5.37/2.14 POL(b_{b_1}(x_1)) = 3 + x_1 5.37/2.14 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 5.37/2.14 5.37/2.14 a_{b_1}(b_{b_1}(b_{a_1}(x1))) -> a_{a_1}(a_{a_1}(a_{a_1}(x1))) 5.37/2.14 a_{b_1}(b_{b_1}(b_{b_1}(x1))) -> a_{a_1}(a_{a_1}(a_{b_1}(x1))) 5.37/2.14 b_{b_1}(b_{b_1}(b_{a_1}(x1))) -> b_{a_1}(a_{a_1}(a_{a_1}(x1))) 5.37/2.14 b_{b_1}(b_{b_1}(b_{b_1}(x1))) -> b_{a_1}(a_{a_1}(a_{b_1}(x1))) 5.37/2.14 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> a_{a_1}(x1) 5.37/2.14 a_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> a_{b_1}(x1) 5.37/2.14 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{a_1}(x1))))) -> b_{a_1}(x1) 5.37/2.14 b_{a_1}(a_{b_1}(b_{b_1}(b_{a_1}(a_{b_1}(x1))))) -> b_{b_1}(x1) 5.37/2.14 5.37/2.14 5.37/2.14 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (6) 5.37/2.14 Obligation: 5.37/2.14 Q restricted rewrite system: 5.37/2.14 The TRS R consists of the following rules: 5.37/2.14 5.37/2.14 a_{a_1}(a_{a_1}(x1)) -> a_{b_1}(b_{a_1}(a_{a_1}(x1))) 5.37/2.14 a_{a_1}(a_{b_1}(x1)) -> a_{b_1}(b_{a_1}(a_{b_1}(x1))) 5.37/2.14 5.37/2.14 Q is empty. 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (7) QTRSRRRProof (EQUIVALENT) 5.37/2.14 Used ordering: 5.37/2.14 Polynomial interpretation [POLO]: 5.37/2.14 5.37/2.14 POL(a_{a_1}(x_1)) = 1 + x_1 5.37/2.14 POL(a_{b_1}(x_1)) = x_1 5.37/2.14 POL(b_{a_1}(x_1)) = x_1 5.37/2.14 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 5.37/2.14 5.37/2.14 a_{a_1}(a_{a_1}(x1)) -> a_{b_1}(b_{a_1}(a_{a_1}(x1))) 5.37/2.14 a_{a_1}(a_{b_1}(x1)) -> a_{b_1}(b_{a_1}(a_{b_1}(x1))) 5.37/2.14 5.37/2.14 5.37/2.14 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (8) 5.37/2.14 Obligation: 5.37/2.14 Q restricted rewrite system: 5.37/2.14 R is empty. 5.37/2.14 Q is empty. 5.37/2.14 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (9) RisEmptyProof (EQUIVALENT) 5.37/2.14 The TRS R is empty. Hence, termination is trivially proven. 5.37/2.14 ---------------------------------------- 5.37/2.14 5.37/2.14 (10) 5.37/2.14 YES 5.37/2.17 EOF