(ignored inputs)COMMENT submitted by: Johannes Waldmann secret problem 2020 category: SRS Rewrite Rules: [ a(b(a(?x))) -> a(a(b(a(b(?x))))) ] Apply Direct Methods... Inner CPs: [ a(b(a(a(b(a(b(?x))))))) = a(a(b(a(b(b(a(?x))))))) ] Outer CPs: [ ] not Overlay, check Termination... unknown/not Terminating unknown Knuth & Bendix Linear unknown Development Closed unknown Strongly Closed unknown Weakly-Non-Overlapping & Non-Collapsing & Shallow inner CP cond (upside-parallel) innter CP Cond (outside) unknown Upside-Parallel-Closed/Outside-Closed (inner) Parallel CPs: (not computed) unknown Toyama (Parallel CPs) Simultaneous CPs: [ a(b(a(a(b(a(b(?x_1))))))) = a(a(b(a(b(b(a(?x_1))))))), a(a(b(a(b(b(a(a(b(a(b(?x_1))))))))))) = a(b(a(a(b(a(b(b(a(?x_1))))))))), a(a(b(a(b(b(a(?x))))))) = a(b(a(a(b(a(b(?x))))))) ] unknown Okui (Simultaneous CPs) unknown Strongly Depth-Preserving & Root-E-Closed/Non-E-Overlapping unknown Strongly Weight-Preserving & Root-E-Closed/Non-E-Overlapping check Locally Decreasing Diagrams by Rule Labelling... Critical Pair by Rules <0, 0> preceded by [(a,1),(b,1)] unknown Diagram Decreasing check Non-Confluence... obtain 3 rules by 3 steps unfolding obtain 100 candidates for checking non-joinability check by TCAP-Approximation (failure) check by Ordering(rpo), check by Tree-Automata Approximation (failure) check by Interpretation(mod2)