0.00/0.34 MAYBE 0.00/0.34 (ignored inputs)COMMENT doi:10.1007/11805618_3 [69] p. 27 submitted by: Thomas Sternagel and Aart Middeldorp 0.00/0.34 Conditional Rewrite Rules: 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y)) -> true, 0.00/0.34 lt(s(?x),s(?y)) -> lt(?x,?y), 0.00/0.34 cons(?x,cons(?y,?ys)) -> cons(?y,cons(?x,?ys)) | lt(?x,?y) == true ] 0.00/0.34 Check whether all rules are type 3 0.00/0.34 OK 0.00/0.34 Check whether the input is deterministic 0.00/0.34 OK 0.00/0.34 Result of unraveling: 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y)) -> true, 0.00/0.34 lt(s(?x),s(?y)) -> lt(?x,?y), 0.00/0.34 cons(?x,cons(?y,?ys)) -> U0(lt(?x,?y),?x,?y,?ys), 0.00/0.34 U0(true,?x,?y,?ys) -> cons(?y,cons(?x,?ys)) ] 0.00/0.34 Check whether U(R) is terminating 0.00/0.34 failed to show termination 0.00/0.34 Check whether the input is weakly left-linear 0.00/0.34 OK 0.00/0.34 Conditional critical pairs (CCPs): 0.00/0.34 [ cons(?x_1,cons(?y,cons(?x,?ys))) = cons(?x,cons(?x_1,cons(?y,?ys))) | lt(?x,?y) == true,lt(?x_1,?x) == true ] 0.00/0.34 Check whether the input is almost orthogonale 0.00/0.34 not almost orthogonal 0.00/0.34 OK 0.00/0.34 Check U(R) is confluent 0.00/0.34 Rewrite Rules: 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y)) -> true, 0.00/0.34 lt(s(?x),s(?y)) -> lt(?x,?y), 0.00/0.34 cons(?x,cons(?y,?ys)) -> U0(lt(?x,?y),?x,?y,?ys), 0.00/0.34 U0(true,?x,?y,?ys) -> cons(?y,cons(?x,?ys)) ] 0.00/0.34 Apply Direct Methods... 0.00/0.34 Inner CPs: 0.00/0.34 [ cons(?x_1,U0(lt(?x,?y),?x,?y,?ys)) = U0(lt(?x_1,?x),?x_1,?x,cons(?y,?ys)) ] 0.00/0.34 Outer CPs: 0.00/0.34 [ ] 0.00/0.34 not Overlay, check Termination... 0.00/0.34 unknown/not Terminating 0.00/0.34 unknown Knuth & Bendix 0.00/0.34 Left-Linear, not Right-Linear 0.00/0.34 unknown Development Closed 0.00/0.34 unknown Weakly-Non-Overlapping & Non-Collapsing & Shallow 0.00/0.34 inner CP cond (upside-parallel) 0.00/0.34 innter CP Cond (outside) 0.00/0.34 unknown Upside-Parallel-Closed/Outside-Closed 0.00/0.34 (inner) Parallel CPs: (not computed) 0.00/0.34 unknown Toyama (Parallel CPs) 0.00/0.34 Simultaneous CPs: 0.00/0.34 [ cons(?x,U0(lt(?y,?y_1),?y,?y_1,?ys_1)) = U0(lt(?x,?y),?x,?y,cons(?y_1,?ys_1)), 0.00/0.34 U0(lt(?x_1,?x),?x_1,?x,U0(lt(?y,?y_2),?y,?y_2,?ys_2)) = cons(?x_1,U0(lt(?x,?y),?x,?y,cons(?y_2,?ys_2))), 0.00/0.34 U0(lt(?x_1,?x),?x_1,?x,cons(?y,?ys)) = cons(?x_1,U0(lt(?x,?y),?x,?y,?ys)) ] 0.00/0.34 unknown Okui (Simultaneous CPs) 0.00/0.34 unknown Strongly Depth-Preserving & Root-E-Closed/Non-E-Overlapping 0.00/0.34 unknown Strongly Weight-Preserving & Root-E-Closed/Non-E-Overlapping 0.00/0.34 check Locally Decreasing Diagrams by Rule Labelling... 0.00/0.34 Critical Pair by Rules <3, 3> preceded by [(cons,2)] 0.00/0.34 unknown Diagram Decreasing 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y_1)) -> true, 0.00/0.34 lt(s(?x_2),s(?y_2)) -> lt(?x_2,?y_2), 0.00/0.34 cons(?x_3,cons(?y_3,?ys_3)) -> U0(lt(?x_3,?y_3),?x_3,?y_3,?ys_3), 0.00/0.34 U0(true,?x_4,?y_4,?ys_4) -> cons(?y_4,cons(?x_4,?ys_4)) ] 0.00/0.34 Sort Assignment: 0.00/0.34 0 : =>16 0.00/0.34 s : 16=>16 0.00/0.34 U0 : 14*16*16*27=>27 0.00/0.34 lt : 16*16=>14 0.00/0.34 cons : 16*27=>27 0.00/0.34 true : =>14 0.00/0.34 false : =>14 0.00/0.34 non-linear variables: {?x_3,?y_3} 0.00/0.34 non-linear types: {16} 0.00/0.34 types leq non-linear types: {16} 0.00/0.34 rules applicable to terms of non-linear types: 0.00/0.34 [ ] 0.00/0.34 Rnl: 0.00/0.34 0: {} 0.00/0.34 1: {} 0.00/0.34 2: {} 0.00/0.34 3: {} 0.00/0.34 4: {} 0.00/0.34 terms of non-linear types are innermost terminating 0.00/0.34 Critical Pair by Rules <3, 3> 0.00/0.34 no joinable sequence for some critical pairs 0.00/0.34 unknown Quasi-Linear & Linearized-Decreasing 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y_1)) -> true, 0.00/0.34 lt(s(?x_2),s(?y_2)) -> lt(?x_2,?y_2), 0.00/0.34 cons(?x_3,cons(?y_3,?ys_3)) -> U0(lt(?x_3,?y_3),?x_3,?y_3,?ys_3), 0.00/0.34 U0(true,?x_4,?y_4,?ys_4) -> cons(?y_4,cons(?x_4,?ys_4)) ] 0.00/0.34 Sort Assignment: 0.00/0.34 0 : =>16 0.00/0.34 s : 16=>16 0.00/0.34 U0 : 14*16*16*27=>27 0.00/0.34 lt : 16*16=>14 0.00/0.34 cons : 16*27=>27 0.00/0.34 true : =>14 0.00/0.34 false : =>14 0.00/0.34 non-linear variables: {?x_3,?y_3} 0.00/0.34 non-linear types: {16} 0.00/0.34 types leq non-linear types: {16} 0.00/0.34 rules applicable to terms of non-linear types: 0.00/0.34 [ ] 0.00/0.34 terms of non-linear types are terminating 0.00/0.34 Check Joinablility of CP from NLR: 0.00/0.34 done. 0.00/0.34 Critical Pair by Rules <3, 3> 0.00/0.34 no joinable sequence for some critical pairs 0.00/0.34 unknown Strongly Quasi-Linear & Hierarchically Decreasing 0.00/0.34 unknown Huet (modulo AC) 0.00/0.34 check by Reduction-Preserving Completion... 0.00/0.34 failure(empty P) 0.00/0.34 unknown Reduction-Preserving Completion 0.00/0.34 check by Ordered Rewriting... 0.00/0.34 remove redundants rules and split 0.00/0.34 R-part: 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y)) -> true, 0.00/0.34 lt(s(?x),s(?y)) -> lt(?x,?y), 0.00/0.34 cons(?x,cons(?y,?ys)) -> U0(lt(?x,?y),?x,?y,?ys), 0.00/0.34 U0(true,?x,?y,?ys) -> cons(?y,cons(?x,?ys)) ] 0.00/0.34 E-part: 0.00/0.34 [ ] 0.00/0.34 ...failed to find a suitable LPO. 0.00/0.34 unknown Confluence by Ordered Rewriting 0.00/0.34 Direct Methods: Can't judge 0.00/0.34 0.00/0.34 Try Persistent Decomposition for... 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y)) -> true, 0.00/0.34 lt(s(?x),s(?y)) -> lt(?x,?y), 0.00/0.34 cons(?x,cons(?y,?ys)) -> U0(lt(?x,?y),?x,?y,?ys), 0.00/0.34 U0(true,?x,?y,?ys) -> cons(?y,cons(?x,?ys)) ] 0.00/0.34 Sort Assignment: 0.00/0.34 0 : =>16 0.00/0.34 s : 16=>16 0.00/0.34 U0 : 14*16*16*27=>27 0.00/0.34 lt : 16*16=>14 0.00/0.34 cons : 16*27=>27 0.00/0.34 true : =>14 0.00/0.34 false : =>14 0.00/0.34 maximal types: {14,16,27} 0.00/0.34 Persistent Decomposition failed: Can't judge 0.00/0.34 0.00/0.34 Try Layer Preserving Decomposition for... 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y)) -> true, 0.00/0.34 lt(s(?x),s(?y)) -> lt(?x,?y), 0.00/0.34 cons(?x,cons(?y,?ys)) -> U0(lt(?x,?y),?x,?y,?ys), 0.00/0.34 U0(true,?x,?y,?ys) -> cons(?y,cons(?x,?ys)) ] 0.00/0.34 Layer Preserving Decomposition failed: Can't judge 0.00/0.34 0.00/0.34 Try Commutative Decomposition for... 0.00/0.34 [ lt(?x,0) -> false, 0.00/0.34 lt(0,s(?y)) -> true, 0.00/0.34 lt(s(?x),s(?y)) -> lt(?x,?y), 0.00/0.34 cons(?x,cons(?y,?ys)) -> U0(lt(?x,?y),?x,?y,?ys), 0.00/0.34 U0(true,?x,?y,?ys) -> cons(?y,cons(?x,?ys)) ] 0.00/0.34 Try A Minimal Decomposition {0}{1}{2}{3}{4} 0.00/0.34 {0} 0.00/0.34 (cm)Rewrite Rules: 0.00/0.34 [ lt(?x,0) -> false ] 0.00/0.34 Apply Direct Methods... 0.00/0.34 Inner CPs: 0.00/0.34 [ ] 0.00/0.34 Outer CPs: 0.00/0.34 [ ] 0.00/0.34 Overlay, check Innermost Termination... 0.00/0.34 Innermost Terminating (hence Terminating), WCR 0.00/0.34 Knuth & Bendix 0.00/0.34 Direct Methods: CR 0.00/0.34 {1} 0.00/0.34 (cm)Rewrite Rules: 0.00/0.34 [ lt(0,s(?y)) -> true ] 0.00/0.34 Apply Direct Methods... 0.00/0.34 Inner CPs: 0.00/0.34 [ ] 0.00/0.34 Outer CPs: 0.00/0.34 [ ] 0.00/0.34 Overlay, check Innermost Termination... 0.00/0.34 Innermost Terminating (hence Terminating), WCR 0.00/0.34 Knuth & Bendix 0.00/0.34 Direct Methods: CR 0.00/0.34 {2} 0.00/0.34 (cm)Rewrite Rules: 0.00/0.34 [ lt(s(?x),s(?y)) -> lt(?x,?y) ] 0.00/0.34 Apply Direct Methods... 0.00/0.34 Inner CPs: 0.00/0.34 [ ] 0.00/0.34 Outer CPs: 0.00/0.34 [ ] 0.00/0.34 Overlay, check Innermost Termination... 0.00/0.34 Innermost Terminating (hence Terminating), WCR 0.00/0.34 Knuth & Bendix 0.00/0.34 Direct Methods: CR 0.00/0.34 {3} 0.00/0.34 (cm)Rewrite Rules: 0.00/0.34 [ cons(?x,cons(?y,?ys)) -> U0(lt(?x,?y),?x,?y,?ys) ] 0.00/0.34 Apply Direct Methods... 0.00/0.34 Inner CPs: 0.00/0.34 [ cons(?x_1,U0(lt(?x,?y),?x,?y,?ys)) = U0(lt(?x_1,?x),?x_1,?x,cons(?y,?ys)) ] 0.00/0.34 Outer CPs: 0.00/0.34 [ ] 0.00/0.34 not Overlay, check Termination... 0.00/0.34 Terminating, not WCR 0.00/0.34 Knuth & Bendix 0.00/0.34 Direct Methods: not CR 0.00/0.34 {4} 0.00/0.34 (cm)Rewrite Rules: 0.00/0.34 [ U0(true,?x,?y,?ys) -> cons(?y,cons(?x,?ys)) ] 0.00/0.34 Apply Direct Methods... 0.00/0.34 Inner CPs: 0.00/0.34 [ ] 0.00/0.34 Outer CPs: 0.00/0.34 [ ] 0.00/0.34 Overlay, check Innermost Termination... 0.00/0.34 Innermost Terminating (hence Terminating), WCR 0.00/0.34 Knuth & Bendix 0.00/0.34 Direct Methods: CR 0.00/0.34 Commutative Decomposition failed: Can't judge 0.00/0.34 No further decomposition possible 0.00/0.34 0.00/0.34 0.00/0.34 Combined result: Can't judge 0.00/0.34 failed to show confluence of U(R) 0.00/0.34 /export/starexec/sandbox/benchmark/theBenchmark.trs: Failure(unknown CR) 0.00/0.34 (180 msec.) 0.00/0.34 EOF