MAYBE
Time: 0.000920
TRS:
 {f(a(), f(x, a())) -> f(a(), f(x, f(f(a(), a()), a())))}
 DP:
  DP:
   {f#(a(), f(x, a())) -> f#(x, f(f(a(), a()), a())),
    f#(a(), f(x, a())) -> f#(f(a(), a()), a()),
    f#(a(), f(x, a())) -> f#(a(), f(x, f(f(a(), a()), a()))),
    f#(a(), f(x, a())) -> f#(a(), a())}
  TRS:
  {f(a(), f(x, a())) -> f(a(), f(x, f(f(a(), a()), a())))}
  UR:
   {f(a(), f(x, a())) -> f(a(), f(x, f(f(a(), a()), a())))}
   EDG:
    {(f#(a(), f(x, a())) -> f#(x, f(f(a(), a()), a())), f#(a(), f(x, a())) -> f#(a(), a()))
     (f#(a(), f(x, a())) -> f#(x, f(f(a(), a()), a())), f#(a(), f(x, a())) -> f#(a(), f(x, f(f(a(), a()), a()))))
     (f#(a(), f(x, a())) -> f#(x, f(f(a(), a()), a())), f#(a(), f(x, a())) -> f#(f(a(), a()), a()))
     (f#(a(), f(x, a())) -> f#(x, f(f(a(), a()), a())), f#(a(), f(x, a())) -> f#(x, f(f(a(), a()), a())))}
    STATUS:
     arrows: 0.750000
     SCCS (1):
      Scc:
       {f#(a(), f(x, a())) -> f#(x, f(f(a(), a()), a()))}
      
      SCC (1):
       Strict:
        {f#(a(), f(x, a())) -> f#(x, f(f(a(), a()), a()))}
       Weak:
       {f(a(), f(x, a())) -> f(a(), f(x, f(f(a(), a()), a())))}
       Open