MAYBE
(ignored inputs)COMMENT Cops #647 - #721: generated ground TRSs; evenly distributed in the UNR/UNC/NFP/CR hierarchy submitted by: Bertram Felgenhauer
Rewrite Rules:
   [ a -> a,
     a -> h(a,b),
     b -> h(b,f(f(b))),
     b -> b,
     h(b,h(f(a),a)) -> a ]
Apply Direct Methods...
Inner CPs:
   [ h(b,h(f(a),a)) = a,
     h(b,h(f(a),a)) = a,
     h(b,h(f(h(a,b)),a)) = a,
     h(b,h(f(a),h(a,b))) = a,
     h(h(b,f(f(b))),h(f(a),a)) = a,
     h(b,h(f(a),a)) = a ]
Outer CPs:
   [ a = h(a,b),
     h(b,f(f(b))) = b ]
Linear
(inner) Parallel CPs: (not computed)
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

Combined result: Can't judge
672.trs: Failure(unknown CR)
(0 msec.)