45.61/12.51 YES 45.61/12.55 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 45.61/12.55 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 45.61/12.55 45.61/12.55 45.61/12.55 Termination w.r.t. Q of the given QTRS could be proven: 45.61/12.55 45.61/12.55 (0) QTRS 45.61/12.55 (1) DependencyPairsProof [EQUIVALENT, 27 ms] 45.61/12.55 (2) QDP 45.61/12.55 (3) QDPOrderProof [EQUIVALENT, 207 ms] 45.61/12.55 (4) QDP 45.61/12.55 (5) QDPOrderProof [EQUIVALENT, 72 ms] 45.61/12.55 (6) QDP 45.61/12.55 (7) QDPOrderProof [EQUIVALENT, 8 ms] 45.61/12.55 (8) QDP 45.61/12.55 (9) QDPOrderProof [EQUIVALENT, 28 ms] 45.61/12.55 (10) QDP 45.61/12.55 (11) DependencyGraphProof [EQUIVALENT, 0 ms] 45.61/12.55 (12) QDP 45.61/12.55 (13) QDPOrderProof [EQUIVALENT, 0 ms] 45.61/12.55 (14) QDP 45.61/12.55 (15) PisEmptyProof [EQUIVALENT, 0 ms] 45.61/12.55 (16) YES 45.61/12.55 45.61/12.55 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (0) 45.61/12.55 Obligation: 45.61/12.55 Q restricted rewrite system: 45.61/12.55 The TRS R consists of the following rules: 45.61/12.55 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 45.61/12.55 Q is empty. 45.61/12.55 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (1) DependencyPairsProof (EQUIVALENT) 45.61/12.55 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (2) 45.61/12.55 Obligation: 45.61/12.55 Q DP problem: 45.61/12.55 The TRS P consists of the following rules: 45.61/12.55 45.61/12.55 A(a(x1)) -> B(a(b(x1))) 45.61/12.55 A(a(x1)) -> A(b(x1)) 45.61/12.55 A(a(x1)) -> B(x1) 45.61/12.55 B(b(x1)) -> A(c(b(x1))) 45.61/12.55 B(b(x1)) -> C(b(x1)) 45.61/12.55 C(c(x1)) -> C(b(a(x1))) 45.61/12.55 C(c(x1)) -> B(a(x1)) 45.61/12.55 C(c(x1)) -> A(x1) 45.61/12.55 A(b(x1)) -> B(a(x1)) 45.61/12.55 A(b(x1)) -> A(x1) 45.61/12.55 45.61/12.55 The TRS R consists of the following rules: 45.61/12.55 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 45.61/12.55 Q is empty. 45.61/12.55 We have to consider all minimal (P,Q,R)-chains. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (3) QDPOrderProof (EQUIVALENT) 45.61/12.55 We use the reduction pair processor [LPAR04,JAR06]. 45.61/12.55 45.61/12.55 45.61/12.55 The following pairs can be oriented strictly and are deleted. 45.61/12.55 45.61/12.55 C(c(x1)) -> C(b(a(x1))) 45.61/12.55 The remaining pairs can at least be oriented weakly. 45.61/12.55 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(A(x_1)) = [[1A]] + [[0A, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(a(x_1)) = [[0A], [0A], [0A]] + [[0A, -I, -I], [1A, 0A, 0A], [0A, -I, -I]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(B(x_1)) = [[1A]] + [[0A, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(b(x_1)) = [[0A], [0A], [0A]] + [[0A, -I, -I], [1A, 0A, 0A], [0A, -I, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(c(x_1)) = [[0A], [0A], [1A]] + [[0A, -I, -I], [0A, 0A, 0A], [1A, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(C(x_1)) = [[0A]] + [[0A, -I, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 45.61/12.55 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 45.61/12.55 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 45.61/12.55 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (4) 45.61/12.55 Obligation: 45.61/12.55 Q DP problem: 45.61/12.55 The TRS P consists of the following rules: 45.61/12.55 45.61/12.55 A(a(x1)) -> B(a(b(x1))) 45.61/12.55 A(a(x1)) -> A(b(x1)) 45.61/12.55 A(a(x1)) -> B(x1) 45.61/12.55 B(b(x1)) -> A(c(b(x1))) 45.61/12.55 B(b(x1)) -> C(b(x1)) 45.61/12.55 C(c(x1)) -> B(a(x1)) 45.61/12.55 C(c(x1)) -> A(x1) 45.61/12.55 A(b(x1)) -> B(a(x1)) 45.61/12.55 A(b(x1)) -> A(x1) 45.61/12.55 45.61/12.55 The TRS R consists of the following rules: 45.61/12.55 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 45.61/12.55 Q is empty. 45.61/12.55 We have to consider all minimal (P,Q,R)-chains. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (5) QDPOrderProof (EQUIVALENT) 45.61/12.55 We use the reduction pair processor [LPAR04,JAR06]. 45.61/12.55 45.61/12.55 45.61/12.55 The following pairs can be oriented strictly and are deleted. 45.61/12.55 45.61/12.55 A(a(x1)) -> B(a(b(x1))) 45.61/12.55 C(c(x1)) -> B(a(x1)) 45.61/12.55 A(b(x1)) -> B(a(x1)) 45.61/12.55 The remaining pairs can at least be oriented weakly. 45.61/12.55 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(A(x_1)) = [[0A]] + [[0A, 0A, -I]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(a(x_1)) = [[0A], [1A], [0A]] + [[-I, -I, -I], [0A, 0A, 0A], [-I, -I, -I]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(B(x_1)) = [[0A]] + [[0A, -I, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(b(x_1)) = [[0A], [1A], [0A]] + [[0A, -I, 0A], [0A, 0A, 0A], [0A, -I, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(c(x_1)) = [[0A], [0A], [1A]] + [[0A, -I, 0A], [0A, -I, 0A], [0A, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(C(x_1)) = [[-I]] + [[0A, -I, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 45.61/12.55 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 45.61/12.55 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 45.61/12.55 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (6) 45.61/12.55 Obligation: 45.61/12.55 Q DP problem: 45.61/12.55 The TRS P consists of the following rules: 45.61/12.55 45.61/12.55 A(a(x1)) -> A(b(x1)) 45.61/12.55 A(a(x1)) -> B(x1) 45.61/12.55 B(b(x1)) -> A(c(b(x1))) 45.61/12.55 B(b(x1)) -> C(b(x1)) 45.61/12.55 C(c(x1)) -> A(x1) 45.61/12.55 A(b(x1)) -> A(x1) 45.61/12.55 45.61/12.55 The TRS R consists of the following rules: 45.61/12.55 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 45.61/12.55 Q is empty. 45.61/12.55 We have to consider all minimal (P,Q,R)-chains. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (7) QDPOrderProof (EQUIVALENT) 45.61/12.55 We use the reduction pair processor [LPAR04,JAR06]. 45.61/12.55 45.61/12.55 45.61/12.55 The following pairs can be oriented strictly and are deleted. 45.61/12.55 45.61/12.55 B(b(x1)) -> A(c(b(x1))) 45.61/12.55 The remaining pairs can at least be oriented weakly. 45.61/12.55 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(A(x_1)) = [[0A]] + [[-I, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(a(x_1)) = [[0A], [0A], [1A]] + [[0A, 0A, 0A], [-I, -I, 0A], [0A, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(b(x_1)) = [[0A], [-I], [1A]] + [[0A, 0A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(B(x_1)) = [[0A]] + [[-I, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(c(x_1)) = [[1A], [-I], [-I]] + [[0A, 0A, 0A], [-I, -I, -I], [-I, -I, -I]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(C(x_1)) = [[1A]] + [[0A, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 45.61/12.55 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 45.61/12.55 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 45.61/12.55 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (8) 45.61/12.55 Obligation: 45.61/12.55 Q DP problem: 45.61/12.55 The TRS P consists of the following rules: 45.61/12.55 45.61/12.55 A(a(x1)) -> A(b(x1)) 45.61/12.55 A(a(x1)) -> B(x1) 45.61/12.55 B(b(x1)) -> C(b(x1)) 45.61/12.55 C(c(x1)) -> A(x1) 45.61/12.55 A(b(x1)) -> A(x1) 45.61/12.55 45.61/12.55 The TRS R consists of the following rules: 45.61/12.55 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 45.61/12.55 Q is empty. 45.61/12.55 We have to consider all minimal (P,Q,R)-chains. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (9) QDPOrderProof (EQUIVALENT) 45.61/12.55 We use the reduction pair processor [LPAR04,JAR06]. 45.61/12.55 45.61/12.55 45.61/12.55 The following pairs can be oriented strictly and are deleted. 45.61/12.55 45.61/12.55 C(c(x1)) -> A(x1) 45.61/12.55 The remaining pairs can at least be oriented weakly. 45.61/12.55 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(A(x_1)) = [[1A]] + [[0A, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(a(x_1)) = [[1A], [0A], [-I]] + [[1A, 0A, 1A], [0A, -I, 0A], [0A, -I, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(b(x_1)) = [[1A], [0A], [-I]] + [[0A, 0A, 1A], [-I, 0A, 0A], [-I, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(B(x_1)) = [[1A]] + [[0A, 0A, 1A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(C(x_1)) = [[-I]] + [[0A, 1A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 <<< 45.61/12.55 POL(c(x_1)) = [[0A], [1A], [0A]] + [[-I, 0A, 0A], [0A, 1A, 0A], [-I, 0A, 0A]] * x_1 45.61/12.55 >>> 45.61/12.55 45.61/12.55 45.61/12.55 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 45.61/12.55 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 45.61/12.55 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (10) 45.61/12.55 Obligation: 45.61/12.55 Q DP problem: 45.61/12.55 The TRS P consists of the following rules: 45.61/12.55 45.61/12.55 A(a(x1)) -> A(b(x1)) 45.61/12.55 A(a(x1)) -> B(x1) 45.61/12.55 B(b(x1)) -> C(b(x1)) 45.61/12.55 A(b(x1)) -> A(x1) 45.61/12.55 45.61/12.55 The TRS R consists of the following rules: 45.61/12.55 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 45.61/12.55 Q is empty. 45.61/12.55 We have to consider all minimal (P,Q,R)-chains. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (11) DependencyGraphProof (EQUIVALENT) 45.61/12.55 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 2 less nodes. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (12) 45.61/12.55 Obligation: 45.61/12.55 Q DP problem: 45.61/12.55 The TRS P consists of the following rules: 45.61/12.55 45.61/12.55 A(b(x1)) -> A(x1) 45.61/12.55 A(a(x1)) -> A(b(x1)) 45.61/12.55 45.61/12.55 The TRS R consists of the following rules: 45.61/12.55 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 45.61/12.55 Q is empty. 45.61/12.55 We have to consider all minimal (P,Q,R)-chains. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (13) QDPOrderProof (EQUIVALENT) 45.61/12.55 We use the reduction pair processor [LPAR04,JAR06]. 45.61/12.55 45.61/12.55 45.61/12.55 The following pairs can be oriented strictly and are deleted. 45.61/12.55 45.61/12.55 A(b(x1)) -> A(x1) 45.61/12.55 A(a(x1)) -> A(b(x1)) 45.61/12.55 The remaining pairs can at least be oriented weakly. 45.61/12.55 Used ordering: Polynomial Order [NEGPOLO,POLO] with Interpretation: 45.61/12.55 45.61/12.55 POL( A_1(x_1) ) = 2x_1 45.61/12.55 POL( b_1(x_1) ) = x_1 + 1 45.61/12.55 POL( a_1(x_1) ) = 2x_1 + 2 45.61/12.55 POL( c_1(x_1) ) = max{0, -2} 45.61/12.55 45.61/12.55 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 45.61/12.55 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 45.61/12.55 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (14) 45.61/12.55 Obligation: 45.61/12.55 Q DP problem: 45.61/12.55 P is empty. 45.61/12.55 The TRS R consists of the following rules: 45.61/12.55 45.61/12.55 a(a(x1)) -> b(a(b(x1))) 45.61/12.55 b(b(x1)) -> a(c(b(x1))) 45.61/12.55 c(c(x1)) -> c(b(a(x1))) 45.61/12.55 a(b(x1)) -> b(a(x1)) 45.61/12.55 b(c(x1)) -> c(x1) 45.61/12.55 45.61/12.55 Q is empty. 45.61/12.55 We have to consider all minimal (P,Q,R)-chains. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (15) PisEmptyProof (EQUIVALENT) 45.61/12.55 The TRS P is empty. Hence, there is no (P,Q,R) chain. 45.61/12.55 ---------------------------------------- 45.61/12.55 45.61/12.55 (16) 45.61/12.55 YES 45.99/12.68 EOF