43.89/12.07 YES 44.29/12.11 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 44.29/12.11 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 44.29/12.11 44.29/12.11 44.29/12.11 Termination w.r.t. Q of the given QTRS could be proven: 44.29/12.11 44.29/12.11 (0) QTRS 44.29/12.11 (1) QTRS Reverse [EQUIVALENT, 0 ms] 44.29/12.11 (2) QTRS 44.29/12.11 (3) DependencyPairsProof [EQUIVALENT, 8 ms] 44.29/12.11 (4) QDP 44.29/12.11 (5) DependencyGraphProof [EQUIVALENT, 0 ms] 44.29/12.11 (6) QDP 44.29/12.11 (7) QDPOrderProof [EQUIVALENT, 109 ms] 44.29/12.11 (8) QDP 44.29/12.11 (9) QDPOrderProof [EQUIVALENT, 36 ms] 44.29/12.11 (10) QDP 44.29/12.11 (11) QDPOrderProof [EQUIVALENT, 26 ms] 44.29/12.11 (12) QDP 44.29/12.11 (13) DependencyGraphProof [EQUIVALENT, 0 ms] 44.29/12.11 (14) TRUE 44.29/12.11 44.29/12.11 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (0) 44.29/12.11 Obligation: 44.29/12.11 Q restricted rewrite system: 44.29/12.11 The TRS R consists of the following rules: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 a(b(x1)) -> b(c(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 c(c(x1)) -> a(c(b(a(x1)))) 44.29/12.11 44.29/12.11 Q is empty. 44.29/12.11 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (1) QTRS Reverse (EQUIVALENT) 44.29/12.11 We applied the QTRS Reverse Processor [REVERSE]. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (2) 44.29/12.11 Obligation: 44.29/12.11 Q restricted rewrite system: 44.29/12.11 The TRS R consists of the following rules: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 44.29/12.11 Q is empty. 44.29/12.11 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (3) DependencyPairsProof (EQUIVALENT) 44.29/12.11 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (4) 44.29/12.11 Obligation: 44.29/12.11 Q DP problem: 44.29/12.11 The TRS P consists of the following rules: 44.29/12.11 44.29/12.11 B(a(x1)) -> C(b(x1)) 44.29/12.11 B(a(x1)) -> B(x1) 44.29/12.11 C(c(x1)) -> A(b(c(a(x1)))) 44.29/12.11 C(c(x1)) -> B(c(a(x1))) 44.29/12.11 C(c(x1)) -> C(a(x1)) 44.29/12.11 C(c(x1)) -> A(x1) 44.29/12.11 44.29/12.11 The TRS R consists of the following rules: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 44.29/12.11 Q is empty. 44.29/12.11 We have to consider all minimal (P,Q,R)-chains. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (5) DependencyGraphProof (EQUIVALENT) 44.29/12.11 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 2 less nodes. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (6) 44.29/12.11 Obligation: 44.29/12.11 Q DP problem: 44.29/12.11 The TRS P consists of the following rules: 44.29/12.11 44.29/12.11 C(c(x1)) -> B(c(a(x1))) 44.29/12.11 B(a(x1)) -> C(b(x1)) 44.29/12.11 C(c(x1)) -> C(a(x1)) 44.29/12.11 B(a(x1)) -> B(x1) 44.29/12.11 44.29/12.11 The TRS R consists of the following rules: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 44.29/12.11 Q is empty. 44.29/12.11 We have to consider all minimal (P,Q,R)-chains. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (7) QDPOrderProof (EQUIVALENT) 44.29/12.11 We use the reduction pair processor [LPAR04,JAR06]. 44.29/12.11 44.29/12.11 44.29/12.11 The following pairs can be oriented strictly and are deleted. 44.29/12.11 44.29/12.11 B(a(x1)) -> B(x1) 44.29/12.11 The remaining pairs can at least be oriented weakly. 44.29/12.11 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(C(x_1)) = [[0A]] + [[-I, 0A, -I]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(c(x_1)) = [[1A], [0A], [0A]] + [[1A, 1A, -I], [0A, 0A, -I], [0A, 0A, -I]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(B(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(a(x_1)) = [[0A], [0A], [1A]] + [[0A, 0A, -I], [0A, 0A, -I], [0A, 0A, 1A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(b(x_1)) = [[0A], [1A], [0A]] + [[0A, 0A, 1A], [0A, 0A, 1A], [-I, 0A, 0A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 44.29/12.11 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 44.29/12.11 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (8) 44.29/12.11 Obligation: 44.29/12.11 Q DP problem: 44.29/12.11 The TRS P consists of the following rules: 44.29/12.11 44.29/12.11 C(c(x1)) -> B(c(a(x1))) 44.29/12.11 B(a(x1)) -> C(b(x1)) 44.29/12.11 C(c(x1)) -> C(a(x1)) 44.29/12.11 44.29/12.11 The TRS R consists of the following rules: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 44.29/12.11 Q is empty. 44.29/12.11 We have to consider all minimal (P,Q,R)-chains. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (9) QDPOrderProof (EQUIVALENT) 44.29/12.11 We use the reduction pair processor [LPAR04,JAR06]. 44.29/12.11 44.29/12.11 44.29/12.11 The following pairs can be oriented strictly and are deleted. 44.29/12.11 44.29/12.11 C(c(x1)) -> C(a(x1)) 44.29/12.11 The remaining pairs can at least be oriented weakly. 44.29/12.11 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(C(x_1)) = [[-I]] + [[0A, -I, -I]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(c(x_1)) = [[0A], [-I], [0A]] + [[1A, -I, -I], [0A, -I, -I], [1A, -I, -I]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(B(x_1)) = [[0A]] + [[0A, 0A, -I]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(a(x_1)) = [[-I], [0A], [0A]] + [[0A, -I, -I], [0A, 0A, 0A], [1A, 1A, 1A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(b(x_1)) = [[-I], [0A], [0A]] + [[0A, 0A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 44.29/12.11 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 44.29/12.11 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (10) 44.29/12.11 Obligation: 44.29/12.11 Q DP problem: 44.29/12.11 The TRS P consists of the following rules: 44.29/12.11 44.29/12.11 C(c(x1)) -> B(c(a(x1))) 44.29/12.11 B(a(x1)) -> C(b(x1)) 44.29/12.11 44.29/12.11 The TRS R consists of the following rules: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 44.29/12.11 Q is empty. 44.29/12.11 We have to consider all minimal (P,Q,R)-chains. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (11) QDPOrderProof (EQUIVALENT) 44.29/12.11 We use the reduction pair processor [LPAR04,JAR06]. 44.29/12.11 44.29/12.11 44.29/12.11 The following pairs can be oriented strictly and are deleted. 44.29/12.11 44.29/12.11 B(a(x1)) -> C(b(x1)) 44.29/12.11 The remaining pairs can at least be oriented weakly. 44.29/12.11 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(C(x_1)) = [[0A]] + [[0A, 0A, 0A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(c(x_1)) = [[-I], [0A], [-I]] + [[0A, 0A, -I], [0A, 1A, -I], [0A, 1A, -I]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(B(x_1)) = [[0A]] + [[-I, -I, 0A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(a(x_1)) = [[-I], [-I], [1A]] + [[0A, 0A, -I], [-I, 0A, -I], [1A, 1A, 1A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 <<< 44.29/12.11 POL(b(x_1)) = [[0A], [-I], [-I]] + [[0A, 0A, 0A], [0A, 0A, 0A], [-I, -I, 0A]] * x_1 44.29/12.11 >>> 44.29/12.11 44.29/12.11 44.29/12.11 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 44.29/12.11 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (12) 44.29/12.11 Obligation: 44.29/12.11 Q DP problem: 44.29/12.11 The TRS P consists of the following rules: 44.29/12.11 44.29/12.11 C(c(x1)) -> B(c(a(x1))) 44.29/12.11 44.29/12.11 The TRS R consists of the following rules: 44.29/12.11 44.29/12.11 a(x1) -> x1 44.29/12.11 b(a(x1)) -> c(b(x1)) 44.29/12.11 b(x1) -> x1 44.29/12.11 c(c(x1)) -> a(b(c(a(x1)))) 44.29/12.11 44.29/12.11 Q is empty. 44.29/12.11 We have to consider all minimal (P,Q,R)-chains. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (13) DependencyGraphProof (EQUIVALENT) 44.29/12.11 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 0 SCCs with 1 less node. 44.29/12.11 ---------------------------------------- 44.29/12.11 44.29/12.11 (14) 44.29/12.11 TRUE 44.29/12.15 EOF