/export/starexec/sandbox2/solver/bin/starexec_run_standard /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES proof of /export/starexec/sandbox2/benchmark/theBenchmark.xml # AProVE Commit ID: c69e44bd14796315568835c1ffa2502984884775 mhark 20210624 unpublished Termination w.r.t. Q of the given QTRS could be proven: (0) QTRS (1) QTRS Reverse [EQUIVALENT, 0 ms] (2) QTRS (3) QTRSRRRProof [EQUIVALENT, 17 ms] (4) QTRS (5) DependencyPairsProof [EQUIVALENT, 20 ms] (6) QDP (7) DependencyGraphProof [EQUIVALENT, 0 ms] (8) AND (9) QDP (10) UsableRulesProof [EQUIVALENT, 0 ms] (11) QDP (12) QDPSizeChangeProof [EQUIVALENT, 0 ms] (13) YES (14) QDP (15) UsableRulesProof [EQUIVALENT, 0 ms] (16) QDP (17) QDPSizeChangeProof [EQUIVALENT, 0 ms] (18) YES (19) QDP (20) UsableRulesProof [EQUIVALENT, 0 ms] (21) QDP (22) QDPSizeChangeProof [EQUIVALENT, 0 ms] (23) YES (24) QDP (25) UsableRulesProof [EQUIVALENT, 0 ms] (26) QDP (27) MRRProof [EQUIVALENT, 7 ms] (28) QDP (29) PisEmptyProof [EQUIVALENT, 0 ms] (30) YES ---------------------------------------- (0) Obligation: Q restricted rewrite system: The TRS R consists of the following rules: 0(*(x1)) -> *(1(x1)) 1(*(x1)) -> 0(#(x1)) #(0(x1)) -> 0(#(x1)) #(1(x1)) -> 1(#(x1)) #($(x1)) -> *($(x1)) #(#(x1)) -> #(x1) #(*(x1)) -> *(x1) Q is empty. ---------------------------------------- (1) QTRS Reverse (EQUIVALENT) We applied the QTRS Reverse Processor [REVERSE]. ---------------------------------------- (2) Obligation: Q restricted rewrite system: The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) 1(#(x1)) -> #(1(x1)) $(#(x1)) -> $(*(x1)) #(#(x1)) -> #(x1) *(#(x1)) -> *(x1) Q is empty. ---------------------------------------- (3) QTRSRRRProof (EQUIVALENT) Used ordering: Polynomial interpretation [POLO]: POL(#(x_1)) = 1 + x_1 POL($(x_1)) = x_1 POL(*(x_1)) = 1 + x_1 POL(0(x_1)) = x_1 POL(1(x_1)) = x_1 With this ordering the following rules can be removed by the rule removal processor [LPAR04] because they are oriented strictly: #(#(x1)) -> #(x1) *(#(x1)) -> *(x1) ---------------------------------------- (4) Obligation: Q restricted rewrite system: The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) 1(#(x1)) -> #(1(x1)) $(#(x1)) -> $(*(x1)) Q is empty. ---------------------------------------- (5) DependencyPairsProof (EQUIVALENT) Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. ---------------------------------------- (6) Obligation: Q DP problem: The TRS P consists of the following rules: *^1(0(x1)) -> 1^1(*(x1)) *^1(0(x1)) -> *^1(x1) *^1(1(x1)) -> 0^1(x1) 0^1(#(x1)) -> 0^1(x1) 1^1(#(x1)) -> 1^1(x1) $^1(#(x1)) -> $^1(*(x1)) $^1(#(x1)) -> *^1(x1) The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) 1(#(x1)) -> #(1(x1)) $(#(x1)) -> $(*(x1)) Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (7) DependencyGraphProof (EQUIVALENT) The approximation of the Dependency Graph [LPAR04,FROCOS05,EDGSTAR] contains 4 SCCs with 3 less nodes. ---------------------------------------- (8) Complex Obligation (AND) ---------------------------------------- (9) Obligation: Q DP problem: The TRS P consists of the following rules: 1^1(#(x1)) -> 1^1(x1) The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) 1(#(x1)) -> #(1(x1)) $(#(x1)) -> $(*(x1)) Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (10) UsableRulesProof (EQUIVALENT) We can use the usable rules and reduction pair processor [LPAR04] with the Ce-compatible extension of the polynomial order that maps every function symbol to the sum of its arguments. Then, we can delete all non-usable rules [FROCOS05] from R. ---------------------------------------- (11) Obligation: Q DP problem: The TRS P consists of the following rules: 1^1(#(x1)) -> 1^1(x1) R is empty. Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (12) QDPSizeChangeProof (EQUIVALENT) By using the subterm criterion [SUBTERM_CRITERION] together with the size-change analysis [AAECC05] we have proven that there are no infinite chains for this DP problem. From the DPs we obtained the following set of size-change graphs: *1^1(#(x1)) -> 1^1(x1) The graph contains the following edges 1 > 1 ---------------------------------------- (13) YES ---------------------------------------- (14) Obligation: Q DP problem: The TRS P consists of the following rules: 0^1(#(x1)) -> 0^1(x1) The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) 1(#(x1)) -> #(1(x1)) $(#(x1)) -> $(*(x1)) Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (15) UsableRulesProof (EQUIVALENT) We can use the usable rules and reduction pair processor [LPAR04] with the Ce-compatible extension of the polynomial order that maps every function symbol to the sum of its arguments. Then, we can delete all non-usable rules [FROCOS05] from R. ---------------------------------------- (16) Obligation: Q DP problem: The TRS P consists of the following rules: 0^1(#(x1)) -> 0^1(x1) R is empty. Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (17) QDPSizeChangeProof (EQUIVALENT) By using the subterm criterion [SUBTERM_CRITERION] together with the size-change analysis [AAECC05] we have proven that there are no infinite chains for this DP problem. From the DPs we obtained the following set of size-change graphs: *0^1(#(x1)) -> 0^1(x1) The graph contains the following edges 1 > 1 ---------------------------------------- (18) YES ---------------------------------------- (19) Obligation: Q DP problem: The TRS P consists of the following rules: *^1(0(x1)) -> *^1(x1) The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) 1(#(x1)) -> #(1(x1)) $(#(x1)) -> $(*(x1)) Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (20) UsableRulesProof (EQUIVALENT) We can use the usable rules and reduction pair processor [LPAR04] with the Ce-compatible extension of the polynomial order that maps every function symbol to the sum of its arguments. Then, we can delete all non-usable rules [FROCOS05] from R. ---------------------------------------- (21) Obligation: Q DP problem: The TRS P consists of the following rules: *^1(0(x1)) -> *^1(x1) R is empty. Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (22) QDPSizeChangeProof (EQUIVALENT) By using the subterm criterion [SUBTERM_CRITERION] together with the size-change analysis [AAECC05] we have proven that there are no infinite chains for this DP problem. From the DPs we obtained the following set of size-change graphs: **^1(0(x1)) -> *^1(x1) The graph contains the following edges 1 > 1 ---------------------------------------- (23) YES ---------------------------------------- (24) Obligation: Q DP problem: The TRS P consists of the following rules: $^1(#(x1)) -> $^1(*(x1)) The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) 1(#(x1)) -> #(1(x1)) $(#(x1)) -> $(*(x1)) Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (25) UsableRulesProof (EQUIVALENT) We can use the usable rules and reduction pair processor [LPAR04] with the Ce-compatible extension of the polynomial order that maps every function symbol to the sum of its arguments. Then, we can delete all non-usable rules [FROCOS05] from R. ---------------------------------------- (26) Obligation: Q DP problem: The TRS P consists of the following rules: $^1(#(x1)) -> $^1(*(x1)) The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) 1(#(x1)) -> #(1(x1)) Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (27) MRRProof (EQUIVALENT) By using the rule removal processor [LPAR04] with the following ordering, at least one Dependency Pair or term rewrite system rule of this QDP problem can be strictly oriented. Strictly oriented dependency pairs: $^1(#(x1)) -> $^1(*(x1)) Strictly oriented rules of the TRS R: *(1(x1)) -> #(0(x1)) 0(#(x1)) -> #(0(x1)) Used ordering: Polynomial interpretation [POLO]: POL(#(x_1)) = 1 + 2*x_1 POL($^1(x_1)) = 3*x_1 POL(*(x_1)) = 2*x_1 POL(0(x_1)) = 1 + 3*x_1 POL(1(x_1)) = 2 + 3*x_1 ---------------------------------------- (28) Obligation: Q DP problem: P is empty. The TRS R consists of the following rules: *(0(x1)) -> 1(*(x1)) 1(#(x1)) -> #(1(x1)) Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (29) PisEmptyProof (EQUIVALENT) The TRS P is empty. Hence, there is no (P,Q,R) chain. ---------------------------------------- (30) YES