MAYBE TPA v.1.0 Result: Couldn't prove (non-)termination of that system. Only partial proof available. Default interpretations for symbols are not printed. For polynomial interpretations and semantic labelling over N\{0,1} defaults are 2 for constants, identity for unary symbols and x+y-2 for binary symbols. For semantic labelling over {0,1} (booleans) defaults are 0 for constants, identity for unary symbols and disjunction for binary symbols. [1] TRS loaded from input file: (1) f(X) -> if`1(X,if`2(c,f(true))) (2) if`1(true,if`2(X,Y)) -> X (3) if`1(false,if`2(X,Y)) -> Y [2] Use following polynomial interpretation: [false] = 3 rest default Remove rules with left hand side strictly bigger than right hand side: (3) ../tpdb/TRS/nontermin/CSR/Ex5_Zan97.trs, 0.01, U Couldn't open file <60>: 60: No such file or directory