33.49/9.49 YES 33.74/9.54 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 33.74/9.54 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 33.74/9.54 33.74/9.54 33.74/9.54 Termination w.r.t. Q of the given QTRS could be proven: 33.74/9.54 33.74/9.54 (0) QTRS 33.74/9.54 (1) QTRS Reverse [EQUIVALENT, 0 ms] 33.74/9.54 (2) QTRS 33.74/9.54 (3) DependencyPairsProof [EQUIVALENT, 0 ms] 33.74/9.54 (4) QDP 33.74/9.54 (5) DependencyGraphProof [EQUIVALENT, 0 ms] 33.74/9.54 (6) QDP 33.74/9.54 (7) QDPOrderProof [EQUIVALENT, 874 ms] 33.74/9.54 (8) QDP 33.74/9.54 (9) DependencyGraphProof [EQUIVALENT, 0 ms] 33.74/9.54 (10) QDP 33.74/9.54 (11) QDPOrderProof [EQUIVALENT, 5 ms] 33.74/9.54 (12) QDP 33.74/9.54 (13) PisEmptyProof [EQUIVALENT, 0 ms] 33.74/9.54 (14) YES 33.74/9.54 33.74/9.54 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (0) 33.74/9.54 Obligation: 33.74/9.54 Q restricted rewrite system: 33.74/9.54 The TRS R consists of the following rules: 33.74/9.54 33.74/9.54 a(a(b(d(b(d(a(x1))))))) -> a(a(c(a(a(b(d(x1))))))) 33.74/9.54 a(a(c(x1))) -> c(c(a(a(x1)))) 33.74/9.54 c(c(c(x1))) -> b(d(c(b(d(x1))))) 33.74/9.54 33.74/9.54 Q is empty. 33.74/9.54 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (1) QTRS Reverse (EQUIVALENT) 33.74/9.54 We applied the QTRS Reverse Processor [REVERSE]. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (2) 33.74/9.54 Obligation: 33.74/9.54 Q restricted rewrite system: 33.74/9.54 The TRS R consists of the following rules: 33.74/9.54 33.74/9.54 a(d(b(d(b(a(a(x1))))))) -> d(b(a(a(c(a(a(x1))))))) 33.74/9.54 c(a(a(x1))) -> a(a(c(c(x1)))) 33.74/9.54 c(c(c(x1))) -> d(b(c(d(b(x1))))) 33.74/9.54 33.74/9.54 Q is empty. 33.74/9.54 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (3) DependencyPairsProof (EQUIVALENT) 33.74/9.54 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (4) 33.74/9.54 Obligation: 33.74/9.54 Q DP problem: 33.74/9.54 The TRS P consists of the following rules: 33.74/9.54 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> A(a(c(a(a(x1))))) 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> A(c(a(a(x1)))) 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> C(a(a(x1))) 33.74/9.54 C(a(a(x1))) -> A(a(c(c(x1)))) 33.74/9.54 C(a(a(x1))) -> A(c(c(x1))) 33.74/9.54 C(a(a(x1))) -> C(c(x1)) 33.74/9.54 C(a(a(x1))) -> C(x1) 33.74/9.54 C(c(c(x1))) -> C(d(b(x1))) 33.74/9.54 33.74/9.54 The TRS R consists of the following rules: 33.74/9.54 33.74/9.54 a(d(b(d(b(a(a(x1))))))) -> d(b(a(a(c(a(a(x1))))))) 33.74/9.54 c(a(a(x1))) -> a(a(c(c(x1)))) 33.74/9.54 c(c(c(x1))) -> d(b(c(d(b(x1))))) 33.74/9.54 33.74/9.54 Q is empty. 33.74/9.54 We have to consider all minimal (P,Q,R)-chains. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (5) DependencyGraphProof (EQUIVALENT) 33.74/9.54 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 1 less node. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (6) 33.74/9.54 Obligation: 33.74/9.54 Q DP problem: 33.74/9.54 The TRS P consists of the following rules: 33.74/9.54 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> A(c(a(a(x1)))) 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> A(a(c(a(a(x1))))) 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> C(a(a(x1))) 33.74/9.54 C(a(a(x1))) -> A(a(c(c(x1)))) 33.74/9.54 C(a(a(x1))) -> A(c(c(x1))) 33.74/9.54 C(a(a(x1))) -> C(c(x1)) 33.74/9.54 C(a(a(x1))) -> C(x1) 33.74/9.54 33.74/9.54 The TRS R consists of the following rules: 33.74/9.54 33.74/9.54 a(d(b(d(b(a(a(x1))))))) -> d(b(a(a(c(a(a(x1))))))) 33.74/9.54 c(a(a(x1))) -> a(a(c(c(x1)))) 33.74/9.54 c(c(c(x1))) -> d(b(c(d(b(x1))))) 33.74/9.54 33.74/9.54 Q is empty. 33.74/9.54 We have to consider all minimal (P,Q,R)-chains. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (7) QDPOrderProof (EQUIVALENT) 33.74/9.54 We use the reduction pair processor [LPAR04,JAR06]. 33.74/9.54 33.74/9.54 33.74/9.54 The following pairs can be oriented strictly and are deleted. 33.74/9.54 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> A(c(a(a(x1)))) 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> A(a(c(a(a(x1))))) 33.74/9.54 A(d(b(d(b(a(a(x1))))))) -> C(a(a(x1))) 33.74/9.54 The remaining pairs can at least be oriented weakly. 33.74/9.54 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 33.74/9.54 33.74/9.54 <<< 33.74/9.54 POL(A(x_1)) = [[0A]] + [[0A, -I, 0A]] * x_1 33.74/9.54 >>> 33.74/9.54 33.74/9.54 <<< 33.74/9.54 POL(d(x_1)) = [[0A], [0A], [0A]] + [[0A, 1A, -I], [0A, 0A, 0A], [0A, -I, -I]] * x_1 33.74/9.54 >>> 33.74/9.54 33.74/9.54 <<< 33.74/9.54 POL(b(x_1)) = [[0A], [0A], [-I]] + [[-I, -I, -I], [-I, 0A, -I], [-I, 0A, 0A]] * x_1 33.74/9.54 >>> 33.74/9.54 33.74/9.54 <<< 33.74/9.54 POL(a(x_1)) = [[0A], [0A], [1A]] + [[0A, -I, -I], [0A, -I, -I], [0A, 0A, 0A]] * x_1 33.74/9.54 >>> 33.74/9.54 33.74/9.54 <<< 33.74/9.54 POL(c(x_1)) = [[0A], [0A], [1A]] + [[0A, 0A, 0A], [-I, -I, 0A], [-I, 0A, 0A]] * x_1 33.74/9.54 >>> 33.74/9.54 33.74/9.54 <<< 33.74/9.54 POL(C(x_1)) = [[1A]] + [[0A, 0A, 0A]] * x_1 33.74/9.54 >>> 33.74/9.54 33.74/9.54 33.74/9.54 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 33.74/9.54 33.74/9.54 a(d(b(d(b(a(a(x1))))))) -> d(b(a(a(c(a(a(x1))))))) 33.74/9.54 c(a(a(x1))) -> a(a(c(c(x1)))) 33.74/9.54 c(c(c(x1))) -> d(b(c(d(b(x1))))) 33.74/9.54 33.74/9.54 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (8) 33.74/9.54 Obligation: 33.74/9.54 Q DP problem: 33.74/9.54 The TRS P consists of the following rules: 33.74/9.54 33.74/9.54 C(a(a(x1))) -> A(a(c(c(x1)))) 33.74/9.54 C(a(a(x1))) -> A(c(c(x1))) 33.74/9.54 C(a(a(x1))) -> C(c(x1)) 33.74/9.54 C(a(a(x1))) -> C(x1) 33.74/9.54 33.74/9.54 The TRS R consists of the following rules: 33.74/9.54 33.74/9.54 a(d(b(d(b(a(a(x1))))))) -> d(b(a(a(c(a(a(x1))))))) 33.74/9.54 c(a(a(x1))) -> a(a(c(c(x1)))) 33.74/9.54 c(c(c(x1))) -> d(b(c(d(b(x1))))) 33.74/9.54 33.74/9.54 Q is empty. 33.74/9.54 We have to consider all minimal (P,Q,R)-chains. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (9) DependencyGraphProof (EQUIVALENT) 33.74/9.54 The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 1 SCC with 2 less nodes. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (10) 33.74/9.54 Obligation: 33.74/9.54 Q DP problem: 33.74/9.54 The TRS P consists of the following rules: 33.74/9.54 33.74/9.54 C(a(a(x1))) -> C(x1) 33.74/9.54 C(a(a(x1))) -> C(c(x1)) 33.74/9.54 33.74/9.54 The TRS R consists of the following rules: 33.74/9.54 33.74/9.54 a(d(b(d(b(a(a(x1))))))) -> d(b(a(a(c(a(a(x1))))))) 33.74/9.54 c(a(a(x1))) -> a(a(c(c(x1)))) 33.74/9.54 c(c(c(x1))) -> d(b(c(d(b(x1))))) 33.74/9.54 33.74/9.54 Q is empty. 33.74/9.54 We have to consider all minimal (P,Q,R)-chains. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (11) QDPOrderProof (EQUIVALENT) 33.74/9.54 We use the reduction pair processor [LPAR04,JAR06]. 33.74/9.54 33.74/9.54 33.74/9.54 The following pairs can be oriented strictly and are deleted. 33.74/9.54 33.74/9.54 C(a(a(x1))) -> C(x1) 33.74/9.54 C(a(a(x1))) -> C(c(x1)) 33.74/9.54 The remaining pairs can at least be oriented weakly. 33.74/9.54 Used ordering: Polynomial interpretation [POLO]: 33.74/9.54 33.74/9.54 POL(C(x_1)) = x_1 33.74/9.54 POL(a(x_1)) = 1 + x_1 33.74/9.54 POL(b(x_1)) = 1 + x_1 33.74/9.54 POL(c(x_1)) = x_1 33.74/9.54 POL(d(x_1)) = 0 33.74/9.54 33.74/9.54 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 33.74/9.54 33.74/9.54 c(a(a(x1))) -> a(a(c(c(x1)))) 33.74/9.54 c(c(c(x1))) -> d(b(c(d(b(x1))))) 33.74/9.54 a(d(b(d(b(a(a(x1))))))) -> d(b(a(a(c(a(a(x1))))))) 33.74/9.54 33.74/9.54 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (12) 33.74/9.54 Obligation: 33.74/9.54 Q DP problem: 33.74/9.54 P is empty. 33.74/9.54 The TRS R consists of the following rules: 33.74/9.54 33.74/9.54 a(d(b(d(b(a(a(x1))))))) -> d(b(a(a(c(a(a(x1))))))) 33.74/9.54 c(a(a(x1))) -> a(a(c(c(x1)))) 33.74/9.54 c(c(c(x1))) -> d(b(c(d(b(x1))))) 33.74/9.54 33.74/9.54 Q is empty. 33.74/9.54 We have to consider all minimal (P,Q,R)-chains. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (13) PisEmptyProof (EQUIVALENT) 33.74/9.54 The TRS P is empty. Hence, there is no (P,Q,R) chain. 33.74/9.54 ---------------------------------------- 33.74/9.54 33.74/9.54 (14) 33.74/9.54 YES 34.02/9.64 EOF