MAYBE
Time: 0.015320
TRS:
 {f(a(), f(a(), x)) -> f(x, f(a(), f(f(a(), a()), a())))}
 DP:
  DP:
   {f#(a(), f(a(), x)) -> f#(x, f(a(), f(f(a(), a()), a()))),
    f#(a(), f(a(), x)) -> f#(f(a(), a()), a()),
    f#(a(), f(a(), x)) -> f#(a(), f(f(a(), a()), a())),
    f#(a(), f(a(), x)) -> f#(a(), a())}
  TRS:
  {f(a(), f(a(), x)) -> f(x, f(a(), f(f(a(), a()), a())))}
  UR:
   {}
   EDG:
    {(f#(a(), f(a(), x)) -> f#(x, f(a(), f(f(a(), a()), a()))), f#(a(), f(a(), x)) -> f#(x, f(a(), f(f(a(), a()), a()))))
     (f#(a(), f(a(), x)) -> f#(x, f(a(), f(f(a(), a()), a()))), f#(a(), f(a(), x)) -> f#(f(a(), a()), a()))
     (f#(a(), f(a(), x)) -> f#(x, f(a(), f(f(a(), a()), a()))), f#(a(), f(a(), x)) -> f#(a(), f(f(a(), a()), a())))
     (f#(a(), f(a(), x)) -> f#(x, f(a(), f(f(a(), a()), a()))), f#(a(), f(a(), x)) -> f#(a(), a()))}
    STATUS:
     arrows: 0.750000
     SCCS (1):
      Scc:
       {f#(a(), f(a(), x)) -> f#(x, f(a(), f(f(a(), a()), a())))}
      
      SCC (1):
       Strict:
        {f#(a(), f(a(), x)) -> f#(x, f(a(), f(f(a(), a()), a())))}
       Weak:
       {f(a(), f(a(), x)) -> f(x, f(a(), f(f(a(), a()), a())))}
       Open