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(f(X,Y),Z) -> f(X,f(Y,Z))
(2) f(X,f(Y,Z)) -> f(Y,Y)


../tpdb/TRS/nontermin/Rubio-inn/bn111.trs, 0., U
Couldn't open file <60>: 60: No such file or directory