26.94/7.81 YES 27.38/7.90 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 27.38/7.90 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 27.38/7.90 27.38/7.90 27.38/7.90 Termination w.r.t. Q of the given QTRS could be proven: 27.38/7.90 27.38/7.90 (0) QTRS 27.38/7.90 (1) QTRSRRRProof [EQUIVALENT, 82 ms] 27.38/7.90 (2) QTRS 27.38/7.90 (3) Overlay + Local Confluence [EQUIVALENT, 8 ms] 27.38/7.90 (4) QTRS 27.38/7.90 (5) DependencyPairsProof [EQUIVALENT, 51 ms] 27.38/7.90 (6) QDP 27.38/7.90 (7) MRRProof [EQUIVALENT, 41 ms] 27.38/7.90 (8) QDP 27.38/7.90 (9) PisEmptyProof [EQUIVALENT, 4 ms] 27.38/7.90 (10) YES 27.38/7.90 27.38/7.90 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (0) 27.38/7.90 Obligation: 27.38/7.90 Q restricted rewrite system: 27.38/7.90 The TRS R consists of the following rules: 27.38/7.90 27.38/7.90 a(b(x1)) -> C(x1) 27.38/7.90 b(c(x1)) -> A(x1) 27.38/7.90 c(a(x1)) -> B(x1) 27.38/7.90 A(C(x1)) -> b(x1) 27.38/7.90 C(B(x1)) -> a(x1) 27.38/7.90 B(A(x1)) -> c(x1) 27.38/7.90 a(a(a(a(a(x1))))) -> A(A(A(x1))) 27.38/7.90 A(A(A(A(x1)))) -> a(a(a(a(x1)))) 27.38/7.90 b(b(b(b(b(x1))))) -> B(B(B(x1))) 27.38/7.90 B(B(B(B(x1)))) -> b(b(b(b(x1)))) 27.38/7.90 c(c(c(c(c(x1))))) -> C(C(C(x1))) 27.38/7.90 C(C(C(C(x1)))) -> c(c(c(c(x1)))) 27.38/7.90 B(a(a(a(a(x1))))) -> c(A(A(A(x1)))) 27.38/7.90 A(A(A(b(x1)))) -> a(a(a(a(C(x1))))) 27.38/7.90 C(b(b(b(b(x1))))) -> a(B(B(B(x1)))) 27.38/7.90 B(B(B(c(x1)))) -> b(b(b(b(A(x1))))) 27.38/7.90 A(c(c(c(c(x1))))) -> b(C(C(C(x1)))) 27.38/7.90 C(C(C(a(x1)))) -> c(c(c(c(B(x1))))) 27.38/7.90 a(A(x1)) -> x1 27.38/7.90 A(a(x1)) -> x1 27.38/7.90 b(B(x1)) -> x1 27.38/7.90 B(b(x1)) -> x1 27.38/7.90 c(C(x1)) -> x1 27.38/7.90 C(c(x1)) -> x1 27.38/7.90 27.38/7.90 Q is empty. 27.38/7.90 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (1) QTRSRRRProof (EQUIVALENT) 27.38/7.90 Used ordering: 27.38/7.90 Polynomial interpretation [POLO]: 27.38/7.90 27.38/7.90 POL(A(x_1)) = 3 + x_1 27.38/7.90 POL(B(x_1)) = 3 + x_1 27.38/7.90 POL(C(x_1)) = 3 + x_1 27.38/7.90 POL(a(x_1)) = 2 + x_1 27.38/7.90 POL(b(x_1)) = 2 + x_1 27.38/7.90 POL(c(x_1)) = 2 + x_1 27.38/7.90 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 27.38/7.90 27.38/7.90 a(b(x1)) -> C(x1) 27.38/7.90 b(c(x1)) -> A(x1) 27.38/7.90 c(a(x1)) -> B(x1) 27.38/7.90 A(C(x1)) -> b(x1) 27.38/7.90 C(B(x1)) -> a(x1) 27.38/7.90 B(A(x1)) -> c(x1) 27.38/7.90 a(a(a(a(a(x1))))) -> A(A(A(x1))) 27.38/7.90 A(A(A(A(x1)))) -> a(a(a(a(x1)))) 27.38/7.90 b(b(b(b(b(x1))))) -> B(B(B(x1))) 27.38/7.90 B(B(B(B(x1)))) -> b(b(b(b(x1)))) 27.38/7.90 c(c(c(c(c(x1))))) -> C(C(C(x1))) 27.38/7.90 C(C(C(C(x1)))) -> c(c(c(c(x1)))) 27.38/7.90 a(A(x1)) -> x1 27.38/7.90 A(a(x1)) -> x1 27.38/7.90 b(B(x1)) -> x1 27.38/7.90 B(b(x1)) -> x1 27.38/7.90 c(C(x1)) -> x1 27.38/7.90 C(c(x1)) -> x1 27.38/7.90 27.38/7.90 27.38/7.90 27.38/7.90 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (2) 27.38/7.90 Obligation: 27.38/7.90 Q restricted rewrite system: 27.38/7.90 The TRS R consists of the following rules: 27.38/7.90 27.38/7.90 B(a(a(a(a(x1))))) -> c(A(A(A(x1)))) 27.38/7.90 A(A(A(b(x1)))) -> a(a(a(a(C(x1))))) 27.38/7.90 C(b(b(b(b(x1))))) -> a(B(B(B(x1)))) 27.38/7.90 B(B(B(c(x1)))) -> b(b(b(b(A(x1))))) 27.38/7.90 A(c(c(c(c(x1))))) -> b(C(C(C(x1)))) 27.38/7.90 C(C(C(a(x1)))) -> c(c(c(c(B(x1))))) 27.38/7.90 27.38/7.90 Q is empty. 27.38/7.90 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (3) Overlay + Local Confluence (EQUIVALENT) 27.38/7.90 The TRS is overlay and locally confluent. By [NOC] we can switch to innermost. 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (4) 27.38/7.90 Obligation: 27.38/7.90 Q restricted rewrite system: 27.38/7.90 The TRS R consists of the following rules: 27.38/7.90 27.38/7.90 B(a(a(a(a(x1))))) -> c(A(A(A(x1)))) 27.38/7.90 A(A(A(b(x1)))) -> a(a(a(a(C(x1))))) 27.38/7.90 C(b(b(b(b(x1))))) -> a(B(B(B(x1)))) 27.38/7.90 B(B(B(c(x1)))) -> b(b(b(b(A(x1))))) 27.38/7.90 A(c(c(c(c(x1))))) -> b(C(C(C(x1)))) 27.38/7.90 C(C(C(a(x1)))) -> c(c(c(c(B(x1))))) 27.38/7.90 27.38/7.90 The set Q consists of the following terms: 27.38/7.90 27.38/7.90 B(a(a(a(a(x0))))) 27.38/7.90 A(A(A(b(x0)))) 27.38/7.90 C(b(b(b(b(x0))))) 27.38/7.90 B(B(B(c(x0)))) 27.38/7.90 A(c(c(c(c(x0))))) 27.38/7.90 C(C(C(a(x0)))) 27.38/7.90 27.38/7.90 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (5) DependencyPairsProof (EQUIVALENT) 27.38/7.90 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (6) 27.38/7.90 Obligation: 27.38/7.90 Q DP problem: 27.38/7.90 The TRS P consists of the following rules: 27.38/7.90 27.38/7.90 B^1(a(a(a(a(x1))))) -> A^1(A(A(x1))) 27.38/7.90 B^1(a(a(a(a(x1))))) -> A^1(A(x1)) 27.38/7.90 B^1(a(a(a(a(x1))))) -> A^1(x1) 27.38/7.90 A^1(A(A(b(x1)))) -> C^1(x1) 27.38/7.90 C^1(b(b(b(b(x1))))) -> B^1(B(B(x1))) 27.38/7.90 C^1(b(b(b(b(x1))))) -> B^1(B(x1)) 27.38/7.90 C^1(b(b(b(b(x1))))) -> B^1(x1) 27.38/7.90 B^1(B(B(c(x1)))) -> A^1(x1) 27.38/7.90 A^1(c(c(c(c(x1))))) -> C^1(C(C(x1))) 27.38/7.90 A^1(c(c(c(c(x1))))) -> C^1(C(x1)) 27.38/7.90 A^1(c(c(c(c(x1))))) -> C^1(x1) 27.38/7.90 C^1(C(C(a(x1)))) -> B^1(x1) 27.38/7.90 27.38/7.90 The TRS R consists of the following rules: 27.38/7.90 27.38/7.90 B(a(a(a(a(x1))))) -> c(A(A(A(x1)))) 27.38/7.90 A(A(A(b(x1)))) -> a(a(a(a(C(x1))))) 27.38/7.90 C(b(b(b(b(x1))))) -> a(B(B(B(x1)))) 27.38/7.90 B(B(B(c(x1)))) -> b(b(b(b(A(x1))))) 27.38/7.90 A(c(c(c(c(x1))))) -> b(C(C(C(x1)))) 27.38/7.90 C(C(C(a(x1)))) -> c(c(c(c(B(x1))))) 27.38/7.90 27.38/7.90 The set Q consists of the following terms: 27.38/7.90 27.38/7.90 B(a(a(a(a(x0))))) 27.38/7.90 A(A(A(b(x0)))) 27.38/7.90 C(b(b(b(b(x0))))) 27.38/7.90 B(B(B(c(x0)))) 27.38/7.90 A(c(c(c(c(x0))))) 27.38/7.90 C(C(C(a(x0)))) 27.38/7.90 27.38/7.90 We have to consider all minimal (P,Q,R)-chains. 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (7) MRRProof (EQUIVALENT) 27.38/7.90 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. 27.38/7.90 27.38/7.90 Strictly oriented dependency pairs: 27.38/7.90 27.38/7.90 B^1(a(a(a(a(x1))))) -> A^1(A(A(x1))) 27.38/7.90 B^1(a(a(a(a(x1))))) -> A^1(A(x1)) 27.38/7.90 B^1(a(a(a(a(x1))))) -> A^1(x1) 27.38/7.90 A^1(A(A(b(x1)))) -> C^1(x1) 27.38/7.90 C^1(b(b(b(b(x1))))) -> B^1(B(B(x1))) 27.38/7.90 C^1(b(b(b(b(x1))))) -> B^1(B(x1)) 27.38/7.90 C^1(b(b(b(b(x1))))) -> B^1(x1) 27.38/7.90 B^1(B(B(c(x1)))) -> A^1(x1) 27.38/7.90 A^1(c(c(c(c(x1))))) -> C^1(C(C(x1))) 27.38/7.90 A^1(c(c(c(c(x1))))) -> C^1(C(x1)) 27.38/7.90 A^1(c(c(c(c(x1))))) -> C^1(x1) 27.38/7.90 C^1(C(C(a(x1)))) -> B^1(x1) 27.38/7.90 27.38/7.90 27.38/7.90 Used ordering: Polynomial interpretation [POLO]: 27.38/7.90 27.38/7.90 POL(A(x_1)) = 3 + x_1 27.38/7.90 POL(A^1(x_1)) = 2 + x_1 27.38/7.90 POL(B(x_1)) = 3 + x_1 27.38/7.90 POL(B^1(x_1)) = 1 + x_1 27.38/7.90 POL(C(x_1)) = 3 + x_1 27.38/7.90 POL(C^1(x_1)) = x_1 27.38/7.90 POL(a(x_1)) = 2 + x_1 27.38/7.90 POL(b(x_1)) = 2 + x_1 27.38/7.90 POL(c(x_1)) = 2 + x_1 27.38/7.90 27.38/7.90 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (8) 27.38/7.90 Obligation: 27.38/7.90 Q DP problem: 27.38/7.90 P is empty. 27.38/7.90 The TRS R consists of the following rules: 27.38/7.90 27.38/7.90 B(a(a(a(a(x1))))) -> c(A(A(A(x1)))) 27.38/7.90 A(A(A(b(x1)))) -> a(a(a(a(C(x1))))) 27.38/7.90 C(b(b(b(b(x1))))) -> a(B(B(B(x1)))) 27.38/7.90 B(B(B(c(x1)))) -> b(b(b(b(A(x1))))) 27.38/7.90 A(c(c(c(c(x1))))) -> b(C(C(C(x1)))) 27.38/7.90 C(C(C(a(x1)))) -> c(c(c(c(B(x1))))) 27.38/7.90 27.38/7.90 The set Q consists of the following terms: 27.38/7.90 27.38/7.90 B(a(a(a(a(x0))))) 27.38/7.90 A(A(A(b(x0)))) 27.38/7.90 C(b(b(b(b(x0))))) 27.38/7.90 B(B(B(c(x0)))) 27.38/7.90 A(c(c(c(c(x0))))) 27.38/7.90 C(C(C(a(x0)))) 27.38/7.90 27.38/7.90 We have to consider all minimal (P,Q,R)-chains. 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (9) PisEmptyProof (EQUIVALENT) 27.38/7.90 The TRS P is empty. Hence, there is no (P,Q,R) chain. 27.38/7.90 ---------------------------------------- 27.38/7.90 27.38/7.90 (10) 27.38/7.90 YES 27.64/7.98 EOF