37.51/10.54 YES 37.51/10.60 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 37.51/10.60 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 37.51/10.60 37.51/10.60 37.51/10.60 Termination w.r.t. Q of the given QTRS could be proven: 37.51/10.60 37.51/10.60 (0) QTRS 37.51/10.60 (1) QTRSRRRProof [EQUIVALENT, 39 ms] 37.51/10.60 (2) QTRS 37.51/10.60 (3) DependencyPairsProof [EQUIVALENT, 35 ms] 37.51/10.60 (4) QDP 37.51/10.60 (5) QDPOrderProof [EQUIVALENT, 51 ms] 37.51/10.60 (6) QDP 37.51/10.60 (7) QDPOrderProof [EQUIVALENT, 1 ms] 37.51/10.60 (8) QDP 37.51/10.60 (9) QDPOrderProof [EQUIVALENT, 0 ms] 37.51/10.60 (10) QDP 37.51/10.60 (11) DependencyGraphProof [EQUIVALENT, 0 ms] 37.51/10.60 (12) TRUE 37.51/10.60 37.51/10.60 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (0) 37.51/10.60 Obligation: 37.51/10.60 Q restricted rewrite system: 37.51/10.60 The TRS R consists of the following rules: 37.51/10.60 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 b(a(b(b(x1)))) -> a(b(a(a(x1)))) 37.51/10.60 37.51/10.60 Q is empty. 37.51/10.60 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (1) QTRSRRRProof (EQUIVALENT) 37.51/10.60 Used ordering: 37.51/10.60 Polynomial interpretation [POLO]: 37.51/10.60 37.51/10.60 POL(a(x_1)) = x_1 37.51/10.60 POL(b(x_1)) = 1 + x_1 37.51/10.60 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: 37.51/10.60 37.51/10.60 b(a(b(b(x1)))) -> a(b(a(a(x1)))) 37.51/10.60 37.51/10.60 37.51/10.60 37.51/10.60 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (2) 37.51/10.60 Obligation: 37.51/10.60 Q restricted rewrite system: 37.51/10.60 The TRS R consists of the following rules: 37.51/10.60 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 37.51/10.60 Q is empty. 37.51/10.60 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (3) DependencyPairsProof (EQUIVALENT) 37.51/10.60 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (4) 37.51/10.60 Obligation: 37.51/10.60 Q DP problem: 37.51/10.60 The TRS P consists of the following rules: 37.51/10.60 37.51/10.60 A(b(a(b(x1)))) -> B(b(a(a(x1)))) 37.51/10.60 A(b(a(b(x1)))) -> B(a(a(x1))) 37.51/10.60 A(b(a(b(x1)))) -> A(a(x1)) 37.51/10.60 A(b(a(b(x1)))) -> A(x1) 37.51/10.60 B(a(b(a(x1)))) -> A(b(a(b(x1)))) 37.51/10.60 B(a(b(a(x1)))) -> B(a(b(x1))) 37.51/10.60 B(a(b(a(x1)))) -> A(b(x1)) 37.51/10.60 B(a(b(a(x1)))) -> B(x1) 37.51/10.60 37.51/10.60 The TRS R consists of the following rules: 37.51/10.60 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 37.51/10.60 Q is empty. 37.51/10.60 We have to consider all minimal (P,Q,R)-chains. 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (5) QDPOrderProof (EQUIVALENT) 37.51/10.60 We use the reduction pair processor [LPAR04,JAR06]. 37.51/10.60 37.51/10.60 37.51/10.60 The following pairs can be oriented strictly and are deleted. 37.51/10.60 37.51/10.60 A(b(a(b(x1)))) -> B(a(a(x1))) 37.51/10.60 A(b(a(b(x1)))) -> A(a(x1)) 37.51/10.60 A(b(a(b(x1)))) -> A(x1) 37.51/10.60 B(a(b(a(x1)))) -> A(b(x1)) 37.51/10.60 B(a(b(a(x1)))) -> B(x1) 37.51/10.60 The remaining pairs can at least be oriented weakly. 37.51/10.60 Used ordering: Polynomial interpretation [POLO]: 37.51/10.60 37.51/10.60 POL(A(x_1)) = x_1 37.51/10.60 POL(B(x_1)) = 1 + x_1 37.51/10.60 POL(a(x_1)) = x_1 37.51/10.60 POL(b(x_1)) = 1 + x_1 37.51/10.60 37.51/10.60 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 37.51/10.60 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 37.51/10.60 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (6) 37.51/10.60 Obligation: 37.51/10.60 Q DP problem: 37.51/10.60 The TRS P consists of the following rules: 37.51/10.60 37.51/10.60 A(b(a(b(x1)))) -> B(b(a(a(x1)))) 37.51/10.60 B(a(b(a(x1)))) -> A(b(a(b(x1)))) 37.51/10.60 B(a(b(a(x1)))) -> B(a(b(x1))) 37.51/10.60 37.51/10.60 The TRS R consists of the following rules: 37.51/10.60 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 37.51/10.60 Q is empty. 37.51/10.60 We have to consider all minimal (P,Q,R)-chains. 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (7) QDPOrderProof (EQUIVALENT) 37.51/10.60 We use the reduction pair processor [LPAR04,JAR06]. 37.51/10.60 37.51/10.60 37.51/10.60 The following pairs can be oriented strictly and are deleted. 37.51/10.60 37.51/10.60 B(a(b(a(x1)))) -> B(a(b(x1))) 37.51/10.60 The remaining pairs can at least be oriented weakly. 37.51/10.60 Used ordering: Polynomial Order [NEGPOLO,POLO] with Interpretation: 37.51/10.60 37.51/10.60 POL( A_1(x_1) ) = max{0, 2x_1 - 2} 37.51/10.60 POL( B_1(x_1) ) = max{0, 2x_1 - 2} 37.51/10.60 POL( b_1(x_1) ) = 2x_1 + 1 37.51/10.60 POL( a_1(x_1) ) = 2x_1 + 1 37.51/10.60 37.51/10.60 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 37.51/10.60 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 37.51/10.60 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (8) 37.51/10.60 Obligation: 37.51/10.60 Q DP problem: 37.51/10.60 The TRS P consists of the following rules: 37.51/10.60 37.51/10.60 A(b(a(b(x1)))) -> B(b(a(a(x1)))) 37.51/10.60 B(a(b(a(x1)))) -> A(b(a(b(x1)))) 37.51/10.60 37.51/10.60 The TRS R consists of the following rules: 37.51/10.60 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 37.51/10.60 Q is empty. 37.51/10.60 We have to consider all minimal (P,Q,R)-chains. 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (9) QDPOrderProof (EQUIVALENT) 37.51/10.60 We use the reduction pair processor [LPAR04,JAR06]. 37.51/10.60 37.51/10.60 37.51/10.60 The following pairs can be oriented strictly and are deleted. 37.51/10.60 37.51/10.60 A(b(a(b(x1)))) -> B(b(a(a(x1)))) 37.51/10.60 The remaining pairs can at least be oriented weakly. 37.51/10.60 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 37.51/10.60 37.51/10.60 <<< 37.51/10.60 POL(A(x_1)) = [[-I]] + [[0A, 0A, 0A]] * x_1 37.51/10.60 >>> 37.51/10.60 37.51/10.60 <<< 37.51/10.60 POL(b(x_1)) = [[1A], [-I], [-I]] + [[-I, 0A, 1A], [-I, 0A, -I], [-I, 0A, -I]] * x_1 37.51/10.60 >>> 37.51/10.60 37.51/10.60 <<< 37.51/10.60 POL(a(x_1)) = [[0A], [0A], [-I]] + [[-I, -I, 0A], [0A, -I, -I], [-I, 0A, 0A]] * x_1 37.51/10.60 >>> 37.51/10.60 37.51/10.60 <<< 37.51/10.60 POL(B(x_1)) = [[0A]] + [[-I, 0A, 0A]] * x_1 37.51/10.60 >>> 37.51/10.60 37.51/10.60 37.51/10.60 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 37.51/10.60 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 37.51/10.60 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (10) 37.51/10.60 Obligation: 37.51/10.60 Q DP problem: 37.51/10.60 The TRS P consists of the following rules: 37.51/10.60 37.51/10.60 B(a(b(a(x1)))) -> A(b(a(b(x1)))) 37.51/10.60 37.51/10.60 The TRS R consists of the following rules: 37.51/10.60 37.51/10.60 a(b(a(b(x1)))) -> b(b(a(a(x1)))) 37.51/10.60 b(a(b(a(x1)))) -> a(b(a(b(x1)))) 37.51/10.60 37.51/10.60 Q is empty. 37.51/10.60 We have to consider all minimal (P,Q,R)-chains. 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (11) DependencyGraphProof (EQUIVALENT) 37.51/10.60 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node. 37.51/10.60 ---------------------------------------- 37.51/10.60 37.51/10.60 (12) 37.51/10.60 TRUE 37.83/10.66 EOF