0.00/0.07 MAYBE 0.00/0.07 (ignored inputs)COMMENT submitted by: Nao Hirokawa 0.00/0.07 Conditional Rewrite Rules: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> 0 | 0 == ?x, 0.00/0.07 +(?x,?y) -> +(?y,?x) ] 0.00/0.07 Check whether all rules are type 3 0.00/0.07 OK 0.00/0.07 Check whether the input is deterministic 0.00/0.07 OK 0.00/0.07 Result of unraveling: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0, 0.00/0.07 +(?x,?y) -> +(?y,?x) ] 0.00/0.07 Check whether U(R) is terminating 0.00/0.07 failed to show termination 0.00/0.07 Check whether the input is weakly left-linear 0.00/0.07 OK 0.00/0.07 Conditional critical pairs (CCPs): 0.00/0.07 [ 0 = 0 | 0 == 0, 0.00/0.07 +(?y_2,0) = ?y_2, 0.00/0.07 0 = 0 | 0 == 0, 0.00/0.07 +(0,?x_2) = 0 | 0 == ?x_2, 0.00/0.07 ?x = +(?x,0), 0.00/0.07 0 = +(0,?x_1) | 0 == ?x_1 ] 0.00/0.07 Check whether the input is almost orthogonale 0.00/0.07 not almost orthogonal 0.00/0.07 OK 0.00/0.07 Check U(R) is confluent 0.00/0.07 Rewrite Rules: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0, 0.00/0.07 +(?x,?y) -> +(?y,?x) ] 0.00/0.07 Apply Direct Methods... 0.00/0.07 Inner CPs: 0.00/0.07 [ ] 0.00/0.07 Outer CPs: 0.00/0.07 [ 0 = U0(0,0), 0.00/0.07 ?x = +(?x,0), 0.00/0.07 U0(0,?x_1) = +(0,?x_1) ] 0.00/0.07 Overlay, check Innermost Termination... 0.00/0.07 unknown Innermost Terminating 0.00/0.07 unknown Knuth & Bendix 0.00/0.07 not Left-Linear, Right-Linear 0.00/0.07 unknown Simple-Right-Linear 0.00/0.07 unknown Weakly-Non-Overlapping & Non-Collapsing & Shallow 0.00/0.07 unknown Strongly Depth-Preserving & Root-E-Closed/Non-E-Overlapping 0.00/0.07 unknown Strongly Weight-Preserving & Root-E-Closed/Non-E-Overlapping 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x_1,0) -> U0(0,?x_1), 0.00/0.07 U0(?x_2,?x_2) -> 0, 0.00/0.07 +(?x_3,?y_3) -> +(?y_3,?x_3) ] 0.00/0.07 Sort Assignment: 0.00/0.07 + : 13*13=>13 0.00/0.07 0 : =>13 0.00/0.07 U0 : 13*13=>13 0.00/0.07 non-linear variables: {?x_2} 0.00/0.07 non-linear types: {13} 0.00/0.07 types leq non-linear types: {13} 0.00/0.07 rules applicable to terms of non-linear types: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x_1,0) -> U0(0,?x_1), 0.00/0.07 U0(?x_2,?x_2) -> 0, 0.00/0.07 +(?x_3,?y_3) -> +(?y_3,?x_3) ] 0.00/0.07 unknown innermost-termination for terms of non-linear types 0.00/0.07 unknown Quasi-Left-Linear & Parallel-Closed 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x_1,0) -> U0(0,?x_1), 0.00/0.07 U0(?x_2,?x_2) -> 0, 0.00/0.07 +(?x_3,?y_3) -> +(?y_3,?x_3) ] 0.00/0.07 Sort Assignment: 0.00/0.07 + : 13*13=>13 0.00/0.07 0 : =>13 0.00/0.07 U0 : 13*13=>13 0.00/0.07 non-linear variables: {?x_2} 0.00/0.07 non-linear types: {13} 0.00/0.07 types leq non-linear types: {13} 0.00/0.07 rules applicable to terms of non-linear types: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x_1,0) -> U0(0,?x_1), 0.00/0.07 U0(?x_2,?x_2) -> 0, 0.00/0.07 +(?x_3,?y_3) -> +(?y_3,?x_3) ] 0.00/0.07 Rnl: 0.00/0.07 0: {} 0.00/0.07 1: {} 0.00/0.07 2: {0,1,2,3} 0.00/0.07 3: {} 0.00/0.07 unknown innermost-termination for terms of non-linear types 0.00/0.07 unknown Quasi-Linear & Linearized-Decreasing 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x_1,0) -> U0(0,?x_1), 0.00/0.07 U0(?x_2,?x_2) -> 0, 0.00/0.07 +(?x_3,?y_3) -> +(?y_3,?x_3) ] 0.00/0.07 Sort Assignment: 0.00/0.07 + : 13*13=>13 0.00/0.07 0 : =>13 0.00/0.07 U0 : 13*13=>13 0.00/0.07 non-linear variables: {?x_2} 0.00/0.07 non-linear types: {13} 0.00/0.07 types leq non-linear types: {13} 0.00/0.07 rules applicable to terms of non-linear types: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x_1,0) -> U0(0,?x_1), 0.00/0.07 U0(?x_2,?x_2) -> 0, 0.00/0.07 +(?x_3,?y_3) -> +(?y_3,?x_3) ] 0.00/0.07 unknown innermost-termination for terms of non-linear types 0.00/0.07 unknown Strongly Quasi-Linear & Hierarchically Decreasing 0.00/0.07 unknown Weight-Decreasing Joinable 0.00/0.07 check by Reduction-Preserving Completion... 0.00/0.07 STEP: 1 (parallel) 0.00/0.07 S: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0 ] 0.00/0.07 P: 0.00/0.07 [ +(?x,?y) -> +(?y,?x) ] 0.00/0.07 S: not left-linear 0.00/0.07 failure(Step 1) 0.00/0.07 STEP: 2 (linear) 0.00/0.07 S: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0 ] 0.00/0.07 P: 0.00/0.07 [ +(?x,?y) -> +(?y,?x) ] 0.00/0.07 S: not linear 0.00/0.07 failure(Step 2) 0.00/0.07 STEP: 3 (relative) 0.00/0.07 S: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0 ] 0.00/0.07 P: 0.00/0.07 [ +(?x,?y) -> +(?y,?x) ] 0.00/0.07 failure(Step 3) 0.00/0.07 failure(no possibility remains) 0.00/0.07 unknown Reduction-Preserving Completion 0.00/0.07 check by Ordered Rewriting... 0.00/0.07 remove redundants rules and split 0.00/0.07 R-part: 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0 ] 0.00/0.07 E-part: 0.00/0.07 [ +(?x,?y) -> +(?y,?x) ] 0.00/0.07 Perform abstraction and check... 0.00/0.07 Increase tree depth and check... 0.00/0.07 unknown Confluence by Ordered Rewriting 0.00/0.07 Direct Methods: Can't judge 0.00/0.07 0.00/0.07 Try Persistent Decomposition for... 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0, 0.00/0.07 +(?x,?y) -> +(?y,?x) ] 0.00/0.07 Sort Assignment: 0.00/0.07 + : 13*13=>13 0.00/0.07 0 : =>13 0.00/0.07 U0 : 13*13=>13 0.00/0.07 maximal types: {13} 0.00/0.07 Persistent Decomposition failed: Can't judge 0.00/0.07 0.00/0.07 Try Layer Preserving Decomposition for... 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0, 0.00/0.07 +(?x,?y) -> +(?y,?x) ] 0.00/0.07 Layer Preserving Decomposition failed: Can't judge 0.00/0.07 0.00/0.07 Try Commutative Decomposition for... 0.00/0.07 [ +(0,?x) -> ?x, 0.00/0.07 +(?x,0) -> U0(0,?x), 0.00/0.07 U0(?x,?x) -> 0, 0.00/0.07 +(?x,?y) -> +(?y,?x) ] 0.00/0.07 Commutative Decomposition failed (not left-linear): Can't judge 0.00/0.07 No further decomposition possible 0.00/0.07 0.00/0.07 0.00/0.07 Combined result: Can't judge 0.00/0.07 failed to show confluence of U(R) 0.00/0.07 /export/starexec/sandbox/benchmark/theBenchmark.trs: Failure(unknown CR) 0.00/0.07 (13 msec.) 0.00/0.07 EOF