21.01/6.26 YES 21.01/6.30 proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml 21.01/6.30 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 21.01/6.30 21.01/6.30 21.01/6.30 Termination w.r.t. Q of the given QTRS could be proven: 21.01/6.30 21.01/6.30 (0) QTRS 21.01/6.30 (1) QTRS Reverse [EQUIVALENT, 0 ms] 21.01/6.30 (2) QTRS 21.01/6.30 (3) DependencyPairsProof [EQUIVALENT, 5 ms] 21.01/6.30 (4) QDP 21.01/6.30 (5) QDPOrderProof [EQUIVALENT, 65 ms] 21.01/6.30 (6) QDP 21.01/6.30 (7) QDPOrderProof [EQUIVALENT, 84 ms] 21.01/6.30 (8) QDP 21.01/6.30 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 21.01/6.30 (10) TRUE 21.01/6.30 21.01/6.30 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (0) 21.01/6.30 Obligation: 21.01/6.30 Q restricted rewrite system: 21.01/6.30 The TRS R consists of the following rules: 21.01/6.30 21.01/6.30 a(x1) -> b(x1) 21.01/6.30 b(b(x1)) -> c(x1) 21.01/6.30 c(a(c(x1))) -> a(b(c(a(x1)))) 21.01/6.30 21.01/6.30 Q is empty. 21.01/6.30 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (1) QTRS Reverse (EQUIVALENT) 21.01/6.30 We applied the QTRS Reverse Processor [REVERSE]. 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (2) 21.01/6.30 Obligation: 21.01/6.30 Q restricted rewrite system: 21.01/6.30 The TRS R consists of the following rules: 21.01/6.30 21.01/6.30 a(x1) -> b(x1) 21.01/6.30 b(b(x1)) -> c(x1) 21.01/6.30 c(a(c(x1))) -> a(c(b(a(x1)))) 21.01/6.30 21.01/6.30 Q is empty. 21.01/6.30 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (3) DependencyPairsProof (EQUIVALENT) 21.01/6.30 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (4) 21.01/6.30 Obligation: 21.01/6.30 Q DP problem: 21.01/6.30 The TRS P consists of the following rules: 21.01/6.30 21.01/6.30 A(x1) -> B(x1) 21.01/6.30 B(b(x1)) -> C(x1) 21.01/6.30 C(a(c(x1))) -> A(c(b(a(x1)))) 21.01/6.30 C(a(c(x1))) -> C(b(a(x1))) 21.01/6.30 C(a(c(x1))) -> B(a(x1)) 21.01/6.30 C(a(c(x1))) -> A(x1) 21.01/6.30 21.01/6.30 The TRS R consists of the following rules: 21.01/6.30 21.01/6.30 a(x1) -> b(x1) 21.01/6.30 b(b(x1)) -> c(x1) 21.01/6.30 c(a(c(x1))) -> a(c(b(a(x1)))) 21.01/6.30 21.01/6.30 Q is empty. 21.01/6.30 We have to consider all minimal (P,Q,R)-chains. 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (5) QDPOrderProof (EQUIVALENT) 21.01/6.30 We use the reduction pair processor [LPAR04,JAR06]. 21.01/6.30 21.01/6.30 21.01/6.30 The following pairs can be oriented strictly and are deleted. 21.01/6.30 21.01/6.30 C(a(c(x1))) -> C(b(a(x1))) 21.01/6.30 C(a(c(x1))) -> B(a(x1)) 21.01/6.30 C(a(c(x1))) -> A(x1) 21.01/6.30 The remaining pairs can at least be oriented weakly. 21.01/6.30 Used ordering: Polynomial Order [NEGPOLO,POLO] with Interpretation: 21.01/6.30 21.01/6.30 POL( A_1(x_1) ) = 2x_1 21.01/6.30 POL( B_1(x_1) ) = 2x_1 21.01/6.30 POL( C_1(x_1) ) = 2x_1 + 2 21.01/6.30 POL( b_1(x_1) ) = x_1 + 1 21.01/6.30 POL( c_1(x_1) ) = x_1 + 2 21.01/6.30 POL( a_1(x_1) ) = x_1 + 1 21.01/6.30 21.01/6.30 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 21.01/6.30 21.01/6.30 b(b(x1)) -> c(x1) 21.01/6.30 c(a(c(x1))) -> a(c(b(a(x1)))) 21.01/6.30 a(x1) -> b(x1) 21.01/6.30 21.01/6.30 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (6) 21.01/6.30 Obligation: 21.01/6.30 Q DP problem: 21.01/6.30 The TRS P consists of the following rules: 21.01/6.30 21.01/6.30 A(x1) -> B(x1) 21.01/6.30 B(b(x1)) -> C(x1) 21.01/6.30 C(a(c(x1))) -> A(c(b(a(x1)))) 21.01/6.30 21.01/6.30 The TRS R consists of the following rules: 21.01/6.30 21.01/6.30 a(x1) -> b(x1) 21.01/6.30 b(b(x1)) -> c(x1) 21.01/6.30 c(a(c(x1))) -> a(c(b(a(x1)))) 21.01/6.30 21.01/6.30 Q is empty. 21.01/6.30 We have to consider all minimal (P,Q,R)-chains. 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (7) QDPOrderProof (EQUIVALENT) 21.01/6.30 We use the reduction pair processor [LPAR04,JAR06]. 21.01/6.30 21.01/6.30 21.01/6.30 The following pairs can be oriented strictly and are deleted. 21.01/6.30 21.01/6.30 B(b(x1)) -> C(x1) 21.01/6.30 The remaining pairs can at least be oriented weakly. 21.01/6.30 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 21.01/6.30 21.01/6.30 <<< 21.01/6.30 POL(A(x_1)) = [[0A]] + [[0A, 0A, 1A]] * x_1 21.01/6.30 >>> 21.01/6.30 21.01/6.30 <<< 21.01/6.30 POL(B(x_1)) = [[0A]] + [[0A, 0A, 1A]] * x_1 21.01/6.30 >>> 21.01/6.30 21.01/6.30 <<< 21.01/6.30 POL(b(x_1)) = [[0A], [-I], [-I]] + [[-I, -I, -I], [-I, 0A, 0A], [0A, 1A, 0A]] * x_1 21.01/6.30 >>> 21.01/6.30 21.01/6.30 <<< 21.01/6.30 POL(C(x_1)) = [[-I]] + [[0A, 1A, 0A]] * x_1 21.01/6.30 >>> 21.01/6.30 21.01/6.30 <<< 21.01/6.30 POL(a(x_1)) = [[0A], [-I], [-I]] + [[0A, -I, -I], [0A, 1A, 0A], [0A, 1A, 0A]] * x_1 21.01/6.30 >>> 21.01/6.30 21.01/6.30 <<< 21.01/6.30 POL(c(x_1)) = [[0A], [-I], [-I]] + [[-I, -I, -I], [0A, 1A, 0A], [-I, 1A, -I]] * x_1 21.01/6.30 >>> 21.01/6.30 21.01/6.30 21.01/6.30 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 21.01/6.30 21.01/6.30 b(b(x1)) -> c(x1) 21.01/6.30 c(a(c(x1))) -> a(c(b(a(x1)))) 21.01/6.30 a(x1) -> b(x1) 21.01/6.30 21.01/6.30 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (8) 21.01/6.30 Obligation: 21.01/6.30 Q DP problem: 21.01/6.30 The TRS P consists of the following rules: 21.01/6.30 21.01/6.30 A(x1) -> B(x1) 21.01/6.30 C(a(c(x1))) -> A(c(b(a(x1)))) 21.01/6.30 21.01/6.30 The TRS R consists of the following rules: 21.01/6.30 21.01/6.30 a(x1) -> b(x1) 21.01/6.30 b(b(x1)) -> c(x1) 21.01/6.30 c(a(c(x1))) -> a(c(b(a(x1)))) 21.01/6.30 21.01/6.30 Q is empty. 21.01/6.30 We have to consider all minimal (P,Q,R)-chains. 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (9) DependencyGraphProof (EQUIVALENT) 21.01/6.30 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 2 less nodes. 21.01/6.30 ---------------------------------------- 21.01/6.30 21.01/6.30 (10) 21.01/6.30 TRUE 21.30/6.38 EOF