MAYBE
TRS:
 {f(x, f(a(), f(f(a(), a()), a()))) -> f(f(a(), x), x)}
 DP:
  Strict:
   {f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x),
    f#(x, f(a(), f(f(a(), a()), a()))) -> f#(a(), x)}
  Weak:
  {f(x, f(a(), f(f(a(), a()), a()))) -> f(f(a(), x), x)}
  EDG:
   {(f#(x, f(a(), f(f(a(), a()), a()))) -> f#(a(), x), f#(x, f(a(), f(f(a(), a()), a()))) -> f#(a(), x))
    (f#(x, f(a(), f(f(a(), a()), a()))) -> f#(a(), x), f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x))
    (f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x), f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x))
    (f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x), f#(x, f(a(), f(f(a(), a()), a()))) -> f#(a(), x))}
   SCCS:
    Scc:
     {f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x),
      f#(x, f(a(), f(f(a(), a()), a()))) -> f#(a(), x)}
    SCC:
     Strict:
      {f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x),
       f#(x, f(a(), f(f(a(), a()), a()))) -> f#(a(), x)}
     Weak:
     {f(x, f(a(), f(f(a(), a()), a()))) -> f(f(a(), x), x)}
     POLY:
      Argument Filtering:
       pi(a) = [], pi(f#) = [0,1], pi(f) = []
      Usable Rules:
       {}
      Interpretation:
       [f#](x0, x1) = x0 + x1,
       [f] = 1,
       [a] = 0
      Strict:
       {f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x)}
      Weak:
       {f(x, f(a(), f(f(a(), a()), a()))) -> f(f(a(), x), x)}
      EDG:
       {(f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x), f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x))}
       SCCS:
        Scc:
         {f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x)}
        SCC:
         Strict:
          {f#(x, f(a(), f(f(a(), a()), a()))) -> f#(f(a(), x), x)}
         Weak:
         {f(x, f(a(), f(f(a(), a()), a()))) -> f(f(a(), x), x)}
         Fail