19.30/5.93 YES 19.30/5.94 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 19.30/5.94 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 19.30/5.94 19.30/5.94 19.30/5.94 Termination w.r.t. Q of the given QTRS could be proven: 19.30/5.94 19.30/5.94 (0) QTRS 19.30/5.94 (1) QTRS Reverse [EQUIVALENT, 0 ms] 19.30/5.94 (2) QTRS 19.30/5.94 (3) DependencyPairsProof [EQUIVALENT, 1 ms] 19.30/5.94 (4) QDP 19.30/5.94 (5) QDPOrderProof [EQUIVALENT, 25 ms] 19.30/5.94 (6) QDP 19.30/5.94 (7) QDPOrderProof [EQUIVALENT, 39 ms] 19.30/5.94 (8) QDP 19.30/5.94 (9) PisEmptyProof [EQUIVALENT, 0 ms] 19.30/5.94 (10) YES 19.30/5.94 19.30/5.94 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (0) 19.30/5.94 Obligation: 19.30/5.94 Q restricted rewrite system: 19.30/5.94 The TRS R consists of the following rules: 19.30/5.94 19.30/5.94 a(a(x1)) -> b(a(c(x1))) 19.30/5.94 b(b(x1)) -> a(a(x1)) 19.30/5.94 c(b(x1)) -> a(x1) 19.30/5.94 19.30/5.94 Q is empty. 19.30/5.94 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (1) QTRS Reverse (EQUIVALENT) 19.30/5.94 We applied the QTRS Reverse Processor [REVERSE]. 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (2) 19.30/5.94 Obligation: 19.30/5.94 Q restricted rewrite system: 19.30/5.94 The TRS R consists of the following rules: 19.30/5.94 19.30/5.94 a(a(x1)) -> c(a(b(x1))) 19.30/5.94 b(b(x1)) -> a(a(x1)) 19.30/5.94 b(c(x1)) -> a(x1) 19.30/5.94 19.30/5.94 Q is empty. 19.30/5.94 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (3) DependencyPairsProof (EQUIVALENT) 19.30/5.94 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (4) 19.30/5.94 Obligation: 19.30/5.94 Q DP problem: 19.30/5.94 The TRS P consists of the following rules: 19.30/5.94 19.30/5.94 A(a(x1)) -> A(b(x1)) 19.30/5.94 A(a(x1)) -> B(x1) 19.30/5.94 B(b(x1)) -> A(a(x1)) 19.30/5.94 B(b(x1)) -> A(x1) 19.30/5.94 B(c(x1)) -> A(x1) 19.30/5.94 19.30/5.94 The TRS R consists of the following rules: 19.30/5.94 19.30/5.94 a(a(x1)) -> c(a(b(x1))) 19.30/5.94 b(b(x1)) -> a(a(x1)) 19.30/5.94 b(c(x1)) -> a(x1) 19.30/5.94 19.30/5.94 Q is empty. 19.30/5.94 We have to consider all minimal (P,Q,R)-chains. 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (5) QDPOrderProof (EQUIVALENT) 19.30/5.94 We use the reduction pair processor [LPAR04,JAR06]. 19.30/5.94 19.30/5.94 19.30/5.94 The following pairs can be oriented strictly and are deleted. 19.30/5.94 19.30/5.94 A(a(x1)) -> B(x1) 19.30/5.94 B(b(x1)) -> A(a(x1)) 19.30/5.94 B(b(x1)) -> A(x1) 19.30/5.94 B(c(x1)) -> A(x1) 19.30/5.94 The remaining pairs can at least be oriented weakly. 19.30/5.94 Used ordering: Polynomial Order [NEGPOLO,POLO] with Interpretation: 19.30/5.94 19.30/5.94 POL( A_1(x_1) ) = x_1 + 1 19.30/5.94 POL( b_1(x_1) ) = x_1 + 2 19.30/5.94 POL( a_1(x_1) ) = x_1 + 2 19.30/5.94 POL( c_1(x_1) ) = x_1 19.30/5.94 POL( B_1(x_1) ) = x_1 + 2 19.30/5.94 19.30/5.94 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 19.30/5.94 19.30/5.94 b(b(x1)) -> a(a(x1)) 19.30/5.94 b(c(x1)) -> a(x1) 19.30/5.94 a(a(x1)) -> c(a(b(x1))) 19.30/5.94 19.30/5.94 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (6) 19.30/5.94 Obligation: 19.30/5.94 Q DP problem: 19.30/5.94 The TRS P consists of the following rules: 19.30/5.94 19.30/5.94 A(a(x1)) -> A(b(x1)) 19.30/5.94 19.30/5.94 The TRS R consists of the following rules: 19.30/5.94 19.30/5.94 a(a(x1)) -> c(a(b(x1))) 19.30/5.94 b(b(x1)) -> a(a(x1)) 19.30/5.94 b(c(x1)) -> a(x1) 19.30/5.94 19.30/5.94 Q is empty. 19.30/5.94 We have to consider all minimal (P,Q,R)-chains. 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (7) QDPOrderProof (EQUIVALENT) 19.30/5.94 We use the reduction pair processor [LPAR04,JAR06]. 19.30/5.94 19.30/5.94 19.30/5.94 The following pairs can be oriented strictly and are deleted. 19.30/5.94 19.30/5.94 A(a(x1)) -> A(b(x1)) 19.30/5.94 The remaining pairs can at least be oriented weakly. 19.30/5.94 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 19.30/5.94 19.30/5.94 <<< 19.30/5.94 POL(A(x_1)) = [[-I]] + [[0A, -I, -I]] * x_1 19.30/5.94 >>> 19.30/5.94 19.30/5.94 <<< 19.30/5.94 POL(a(x_1)) = [[1A], [0A], [0A]] + [[-I, 1A, -I], [0A, -I, -I], [1A, 0A, 1A]] * x_1 19.30/5.94 >>> 19.30/5.94 19.30/5.94 <<< 19.30/5.94 POL(b(x_1)) = [[0A], [1A], [0A]] + [[-I, 0A, -I], [1A, 0A, 0A], [0A, 1A, 1A]] * x_1 19.30/5.94 >>> 19.30/5.94 19.30/5.94 <<< 19.30/5.94 POL(c(x_1)) = [[0A], [1A], [0A]] + [[-I, -I, -I], [-I, 1A, -I], [0A, 0A, 0A]] * x_1 19.30/5.94 >>> 19.30/5.94 19.30/5.94 19.30/5.94 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 19.30/5.94 19.30/5.94 b(b(x1)) -> a(a(x1)) 19.30/5.94 b(c(x1)) -> a(x1) 19.30/5.94 a(a(x1)) -> c(a(b(x1))) 19.30/5.94 19.30/5.94 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (8) 19.30/5.94 Obligation: 19.30/5.94 Q DP problem: 19.30/5.94 P is empty. 19.30/5.94 The TRS R consists of the following rules: 19.30/5.94 19.30/5.94 a(a(x1)) -> c(a(b(x1))) 19.30/5.94 b(b(x1)) -> a(a(x1)) 19.30/5.94 b(c(x1)) -> a(x1) 19.30/5.94 19.30/5.94 Q is empty. 19.30/5.94 We have to consider all minimal (P,Q,R)-chains. 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (9) PisEmptyProof (EQUIVALENT) 19.30/5.94 The TRS P is empty. Hence, there is no (P,Q,R) chain. 19.30/5.94 ---------------------------------------- 19.30/5.94 19.30/5.94 (10) 19.30/5.94 YES 19.76/6.03 EOF