MAYBE
Time: 0.018134
TRS:
 {f(f(a(), x), a()) -> f(f(a(), f(a(), a())), x)}
 DP:
  DP:
   {f#(f(a(), x), a()) -> f#(f(a(), f(a(), a())), x),
    f#(f(a(), x), a()) -> f#(a(), f(a(), a())),
    f#(f(a(), x), a()) -> f#(a(), a())}
  TRS:
  {f(f(a(), x), a()) -> f(f(a(), f(a(), a())), x)}
  UR:
   {}
   EDG:
    {(f#(f(a(), x), a()) -> f#(f(a(), f(a(), a())), x), f#(f(a(), x), a()) -> f#(a(), a()))
     (f#(f(a(), x), a()) -> f#(f(a(), f(a(), a())), x), f#(f(a(), x), a()) -> f#(a(), f(a(), a())))
     (f#(f(a(), x), a()) -> f#(f(a(), f(a(), a())), x), f#(f(a(), x), a()) -> f#(f(a(), f(a(), a())), x))}
    STATUS:
     arrows: 0.666667
     SCCS (1):
      Scc:
       {f#(f(a(), x), a()) -> f#(f(a(), f(a(), a())), x)}
      
      SCC (1):
       Strict:
        {f#(f(a(), x), a()) -> f#(f(a(), f(a(), a())), x)}
       Weak:
       {f(f(a(), x), a()) -> f(f(a(), f(a(), a())), x)}
       Fail