(ignored inputs)COMMENT from p.28 of \cite{Gra96thesis}
Rewrite Rules:
   [ f(g(?x)) -> f(h(?x,?x)),
     g(a) -> g(g(a)),
     h(a,a) -> g(g(a)) ]
Apply Direct Methods...
Inner CPs:
   [ f(g(g(a))) = f(h(a,a)) ]
Outer CPs:
   [  ]
not Overlay, check Termination...
unknown/not Terminating
unknown Knuth&Bendix
Left-Linear, not Right-Linear
unknown Development Closed
inner CP cond (upside-parallel)
Upside-Parallel-Closed/Outside-Closed
Direct Methods: CR

Final result: CR
/local-scratch/hzankl/2012/cops2012/42.trs: Success(CR)
(0 msec.)