42.92/12.69 YES 43.11/12.78 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 43.11/12.78 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 43.11/12.78 43.11/12.78 43.11/12.78 Termination w.r.t. Q of the given QTRS could be proven: 43.11/12.78 43.11/12.78 (0) QTRS 43.11/12.78 (1) QTRS Reverse [EQUIVALENT, 0 ms] 43.11/12.78 (2) QTRS 43.11/12.78 (3) DependencyPairsProof [EQUIVALENT, 22 ms] 43.11/12.78 (4) QDP 43.11/12.78 (5) QDPOrderProof [EQUIVALENT, 121 ms] 43.11/12.78 (6) QDP 43.11/12.78 (7) QDPOrderProof [EQUIVALENT, 34 ms] 43.11/12.78 (8) QDP 43.11/12.78 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 43.11/12.78 (10) QDP 43.11/12.78 (11) QDPOrderProof [EQUIVALENT, 34 ms] 43.11/12.78 (12) QDP 43.11/12.78 (13) DependencyGraphProof [EQUIVALENT, 0 ms] 43.11/12.78 (14) TRUE 43.11/12.78 43.11/12.78 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (0) 43.11/12.78 Obligation: 43.11/12.78 Q restricted rewrite system: 43.11/12.78 The TRS R consists of the following rules: 43.11/12.78 43.11/12.78 a(x1) -> x1 43.11/12.78 a(a(x1)) -> b(a(c(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 b(c(x1)) -> a(x1) 43.11/12.78 43.11/12.78 Q is empty. 43.11/12.78 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (1) QTRS Reverse (EQUIVALENT) 43.11/12.78 We applied the QTRS Reverse Processor [REVERSE]. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (2) 43.11/12.78 Obligation: 43.11/12.78 Q restricted rewrite system: 43.11/12.78 The TRS R consists of the following rules: 43.11/12.78 43.11/12.78 a(x1) -> x1 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 43.11/12.78 Q is empty. 43.11/12.78 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (3) DependencyPairsProof (EQUIVALENT) 43.11/12.78 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (4) 43.11/12.78 Obligation: 43.11/12.78 Q DP problem: 43.11/12.78 The TRS P consists of the following rules: 43.11/12.78 43.11/12.78 A(a(x1)) -> B(c(a(b(x1)))) 43.11/12.78 A(a(x1)) -> C(a(b(x1))) 43.11/12.78 A(a(x1)) -> A(b(x1)) 43.11/12.78 A(a(x1)) -> B(x1) 43.11/12.78 B(x1) -> C(x1) 43.11/12.78 C(b(x1)) -> A(x1) 43.11/12.78 43.11/12.78 The TRS R consists of the following rules: 43.11/12.78 43.11/12.78 a(x1) -> x1 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 43.11/12.78 Q is empty. 43.11/12.78 We have to consider all minimal (P,Q,R)-chains. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (5) QDPOrderProof (EQUIVALENT) 43.11/12.78 We use the reduction pair processor [LPAR04,JAR06]. 43.11/12.78 43.11/12.78 43.11/12.78 The following pairs can be oriented strictly and are deleted. 43.11/12.78 43.11/12.78 A(a(x1)) -> A(b(x1)) 43.11/12.78 The remaining pairs can at least be oriented weakly. 43.11/12.78 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(A(x_1)) = [[-I]] + [[0A, 0A, -I]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(a(x_1)) = [[-I], [0A], [0A]] + [[1A, 0A, -I], [0A, 1A, 1A], [1A, 1A, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(B(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(c(x_1)) = [[-I], [-I], [0A]] + [[0A, -I, 0A], [-I, -I, 0A], [0A, -I, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(b(x_1)) = [[-I], [-I], [0A]] + [[0A, 0A, 0A], [0A, -I, 0A], [1A, 1A, 1A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(C(x_1)) = [[0A]] + [[0A, -I, -I]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 43.11/12.78 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 43.11/12.78 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 a(x1) -> x1 43.11/12.78 43.11/12.78 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (6) 43.11/12.78 Obligation: 43.11/12.78 Q DP problem: 43.11/12.78 The TRS P consists of the following rules: 43.11/12.78 43.11/12.78 A(a(x1)) -> B(c(a(b(x1)))) 43.11/12.78 A(a(x1)) -> C(a(b(x1))) 43.11/12.78 A(a(x1)) -> B(x1) 43.11/12.78 B(x1) -> C(x1) 43.11/12.78 C(b(x1)) -> A(x1) 43.11/12.78 43.11/12.78 The TRS R consists of the following rules: 43.11/12.78 43.11/12.78 a(x1) -> x1 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 43.11/12.78 Q is empty. 43.11/12.78 We have to consider all minimal (P,Q,R)-chains. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (7) QDPOrderProof (EQUIVALENT) 43.11/12.78 We use the reduction pair processor [LPAR04,JAR06]. 43.11/12.78 43.11/12.78 43.11/12.78 The following pairs can be oriented strictly and are deleted. 43.11/12.78 43.11/12.78 B(x1) -> C(x1) 43.11/12.78 The remaining pairs can at least be oriented weakly. 43.11/12.78 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(A(x_1)) = [[0A]] + [[0A, 1A, 1A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(a(x_1)) = [[-I], [0A], [0A]] + [[0A, 1A, 0A], [1A, 1A, 1A], [-I, -I, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(B(x_1)) = [[1A]] + [[1A, 1A, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(c(x_1)) = [[-I], [-I], [0A]] + [[0A, -I, 0A], [0A, -I, 0A], [-I, -I, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(b(x_1)) = [[-I], [-I], [0A]] + [[1A, 1A, 1A], [0A, 0A, 0A], [-I, -I, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(C(x_1)) = [[0A]] + [[0A, 0A, -I]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 43.11/12.78 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 43.11/12.78 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 a(x1) -> x1 43.11/12.78 43.11/12.78 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (8) 43.11/12.78 Obligation: 43.11/12.78 Q DP problem: 43.11/12.78 The TRS P consists of the following rules: 43.11/12.78 43.11/12.78 A(a(x1)) -> B(c(a(b(x1)))) 43.11/12.78 A(a(x1)) -> C(a(b(x1))) 43.11/12.78 A(a(x1)) -> B(x1) 43.11/12.78 C(b(x1)) -> A(x1) 43.11/12.78 43.11/12.78 The TRS R consists of the following rules: 43.11/12.78 43.11/12.78 a(x1) -> x1 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 43.11/12.78 Q is empty. 43.11/12.78 We have to consider all minimal (P,Q,R)-chains. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (9) DependencyGraphProof (EQUIVALENT) 43.11/12.78 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 2 less nodes. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (10) 43.11/12.78 Obligation: 43.11/12.78 Q DP problem: 43.11/12.78 The TRS P consists of the following rules: 43.11/12.78 43.11/12.78 A(a(x1)) -> C(a(b(x1))) 43.11/12.78 C(b(x1)) -> A(x1) 43.11/12.78 43.11/12.78 The TRS R consists of the following rules: 43.11/12.78 43.11/12.78 a(x1) -> x1 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 43.11/12.78 Q is empty. 43.11/12.78 We have to consider all minimal (P,Q,R)-chains. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (11) QDPOrderProof (EQUIVALENT) 43.11/12.78 We use the reduction pair processor [LPAR04,JAR06]. 43.11/12.78 43.11/12.78 43.11/12.78 The following pairs can be oriented strictly and are deleted. 43.11/12.78 43.11/12.78 C(b(x1)) -> A(x1) 43.11/12.78 The remaining pairs can at least be oriented weakly. 43.11/12.78 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(A(x_1)) = [[0A]] + [[1A, 0A, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(a(x_1)) = [[1A], [0A], [0A]] + [[1A, 1A, 0A], [1A, 0A, 0A], [1A, 0A, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(C(x_1)) = [[1A]] + [[0A, 0A, 1A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(b(x_1)) = [[0A], [1A], [-I]] + [[0A, 0A, -I], [1A, 1A, 0A], [1A, 0A, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 <<< 43.11/12.78 POL(c(x_1)) = [[0A], [0A], [-I]] + [[-I, 0A, -I], [-I, 0A, 0A], [0A, 0A, 0A]] * x_1 43.11/12.78 >>> 43.11/12.78 43.11/12.78 43.11/12.78 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 43.11/12.78 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 a(x1) -> x1 43.11/12.78 43.11/12.78 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (12) 43.11/12.78 Obligation: 43.11/12.78 Q DP problem: 43.11/12.78 The TRS P consists of the following rules: 43.11/12.78 43.11/12.78 A(a(x1)) -> C(a(b(x1))) 43.11/12.78 43.11/12.78 The TRS R consists of the following rules: 43.11/12.78 43.11/12.78 a(x1) -> x1 43.11/12.78 a(a(x1)) -> b(c(a(b(x1)))) 43.11/12.78 b(x1) -> c(x1) 43.11/12.78 c(b(x1)) -> a(x1) 43.11/12.78 43.11/12.78 Q is empty. 43.11/12.78 We have to consider all minimal (P,Q,R)-chains. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (13) DependencyGraphProof (EQUIVALENT) 43.11/12.78 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node. 43.11/12.78 ---------------------------------------- 43.11/12.78 43.11/12.78 (14) 43.11/12.78 TRUE 43.53/12.88 EOF