30.82/9.03 YES 32.72/9.36 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 32.72/9.36 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 32.72/9.36 32.72/9.36 32.72/9.36 Termination w.r.t. Q of the given QTRS could be proven: 32.72/9.36 32.72/9.36 (0) QTRS 32.72/9.36 (1) QTRS Reverse [EQUIVALENT, 0 ms] 32.72/9.36 (2) QTRS 32.72/9.36 (3) DependencyPairsProof [EQUIVALENT, 16 ms] 32.72/9.36 (4) QDP 32.72/9.36 (5) MRRProof [EQUIVALENT, 56 ms] 32.72/9.36 (6) QDP 32.72/9.36 (7) MRRProof [EQUIVALENT, 1 ms] 32.72/9.36 (8) QDP 32.72/9.36 (9) PisEmptyProof [EQUIVALENT, 0 ms] 32.72/9.36 (10) YES 32.72/9.36 32.72/9.36 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (0) 32.72/9.36 Obligation: 32.72/9.36 Q restricted rewrite system: 32.72/9.36 The TRS R consists of the following rules: 32.72/9.36 32.72/9.36 a(a(a(a(x1)))) -> a(b(a(b(x1)))) 32.72/9.36 a(a(b(a(x1)))) -> a(b(a(a(x1)))) 32.72/9.36 b(a(b(b(x1)))) -> b(b(a(a(x1)))) 32.72/9.36 32.72/9.36 Q is empty. 32.72/9.36 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (1) QTRS Reverse (EQUIVALENT) 32.72/9.36 We applied the QTRS Reverse Processor [REVERSE]. 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (2) 32.72/9.36 Obligation: 32.72/9.36 Q restricted rewrite system: 32.72/9.36 The TRS R consists of the following rules: 32.72/9.36 32.72/9.36 a(a(a(a(x1)))) -> b(a(b(a(x1)))) 32.72/9.36 a(b(a(a(x1)))) -> a(a(b(a(x1)))) 32.72/9.36 b(b(a(b(x1)))) -> a(a(b(b(x1)))) 32.72/9.36 32.72/9.36 Q is empty. 32.72/9.36 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (3) DependencyPairsProof (EQUIVALENT) 32.72/9.36 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (4) 32.72/9.36 Obligation: 32.72/9.36 Q DP problem: 32.72/9.36 The TRS P consists of the following rules: 32.72/9.36 32.72/9.36 A(a(a(a(x1)))) -> B(a(b(a(x1)))) 32.72/9.36 A(a(a(a(x1)))) -> A(b(a(x1))) 32.72/9.36 A(a(a(a(x1)))) -> B(a(x1)) 32.72/9.36 A(b(a(a(x1)))) -> A(a(b(a(x1)))) 32.72/9.36 A(b(a(a(x1)))) -> A(b(a(x1))) 32.72/9.36 A(b(a(a(x1)))) -> B(a(x1)) 32.72/9.36 B(b(a(b(x1)))) -> A(a(b(b(x1)))) 32.72/9.36 B(b(a(b(x1)))) -> A(b(b(x1))) 32.72/9.36 B(b(a(b(x1)))) -> B(b(x1)) 32.72/9.36 32.72/9.36 The TRS R consists of the following rules: 32.72/9.36 32.72/9.36 a(a(a(a(x1)))) -> b(a(b(a(x1)))) 32.72/9.36 a(b(a(a(x1)))) -> a(a(b(a(x1)))) 32.72/9.36 b(b(a(b(x1)))) -> a(a(b(b(x1)))) 32.72/9.36 32.72/9.36 Q is empty. 32.72/9.36 We have to consider all minimal (P,Q,R)-chains. 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (5) MRRProof (EQUIVALENT) 32.72/9.36 By using the rule removal processor [LPAR04] with the following ordering, at least one Dependency Pair or term rewrite system rule of this QDP problem can be strictly oriented. 32.72/9.36 32.72/9.36 Strictly oriented dependency pairs: 32.72/9.36 32.72/9.36 A(a(a(a(x1)))) -> A(b(a(x1))) 32.72/9.36 A(a(a(a(x1)))) -> B(a(x1)) 32.72/9.36 A(b(a(a(x1)))) -> A(b(a(x1))) 32.72/9.36 A(b(a(a(x1)))) -> B(a(x1)) 32.72/9.36 B(b(a(b(x1)))) -> A(b(b(x1))) 32.72/9.36 B(b(a(b(x1)))) -> B(b(x1)) 32.72/9.36 32.72/9.36 32.72/9.36 Used ordering: Polynomial interpretation [POLO]: 32.72/9.36 32.72/9.36 POL(A(x_1)) = 2 + 2*x_1 32.72/9.36 POL(B(x_1)) = 2 + 2*x_1 32.72/9.36 POL(a(x_1)) = 1 + x_1 32.72/9.36 POL(b(x_1)) = 1 + x_1 32.72/9.36 32.72/9.36 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (6) 32.72/9.36 Obligation: 32.72/9.36 Q DP problem: 32.72/9.36 The TRS P consists of the following rules: 32.72/9.36 32.72/9.36 A(a(a(a(x1)))) -> B(a(b(a(x1)))) 32.72/9.36 A(b(a(a(x1)))) -> A(a(b(a(x1)))) 32.72/9.36 B(b(a(b(x1)))) -> A(a(b(b(x1)))) 32.72/9.36 32.72/9.36 The TRS R consists of the following rules: 32.72/9.36 32.72/9.36 a(a(a(a(x1)))) -> b(a(b(a(x1)))) 32.72/9.36 a(b(a(a(x1)))) -> a(a(b(a(x1)))) 32.72/9.36 b(b(a(b(x1)))) -> a(a(b(b(x1)))) 32.72/9.36 32.72/9.36 Q is empty. 32.72/9.36 We have to consider all minimal (P,Q,R)-chains. 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (7) MRRProof (EQUIVALENT) 32.72/9.36 By using the rule removal processor [LPAR04] with the following ordering, at least one Dependency Pair or term rewrite system rule of this QDP problem can be strictly oriented. 32.72/9.36 32.72/9.36 Strictly oriented dependency pairs: 32.72/9.36 32.72/9.36 A(a(a(a(x1)))) -> B(a(b(a(x1)))) 32.72/9.36 A(b(a(a(x1)))) -> A(a(b(a(x1)))) 32.72/9.36 B(b(a(b(x1)))) -> A(a(b(b(x1)))) 32.72/9.36 32.72/9.36 Strictly oriented rules of the TRS R: 32.72/9.36 32.72/9.36 a(a(a(a(x1)))) -> b(a(b(a(x1)))) 32.72/9.36 a(b(a(a(x1)))) -> a(a(b(a(x1)))) 32.72/9.36 b(b(a(b(x1)))) -> a(a(b(b(x1)))) 32.72/9.36 32.72/9.36 Used ordering: Polynomial interpretation [POLO]: 32.72/9.36 32.72/9.36 POL(A(x_1)) = 2*x_1 32.72/9.36 POL(B(x_1)) = 2*x_1 32.72/9.36 POL(a(x_1)) = 2 + 2*x_1 32.72/9.36 POL(b(x_1)) = 2*x_1 32.72/9.36 32.72/9.36 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (8) 32.72/9.36 Obligation: 32.72/9.36 Q DP problem: 32.72/9.36 P is empty. 32.72/9.36 R is empty. 32.72/9.36 Q is empty. 32.72/9.36 We have to consider all minimal (P,Q,R)-chains. 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (9) PisEmptyProof (EQUIVALENT) 32.72/9.36 The TRS P is empty. Hence, there is no (P,Q,R) chain. 32.72/9.36 ---------------------------------------- 32.72/9.36 32.72/9.36 (10) 32.72/9.36 YES 32.77/10.27 EOF