MAYBE
Time: 0.013437
TRS:
 {f(x, f(a(), a())) -> f(f(f(a(), a()), a()), x)}
 DP:
  DP:
   {f#(x, f(a(), a())) -> f#(f(f(a(), a()), a()), x),
    f#(x, f(a(), a())) -> f#(f(a(), a()), a())}
  TRS:
  {f(x, f(a(), a())) -> f(f(f(a(), a()), a()), x)}
  UR:
   {}
   EDG:
    {(f#(x, f(a(), a())) -> f#(f(f(a(), a()), a()), x), f#(x, f(a(), a())) -> f#(f(f(a(), a()), a()), x))
     (f#(x, f(a(), a())) -> f#(f(f(a(), a()), a()), x), f#(x, f(a(), a())) -> f#(f(a(), a()), a()))}
    STATUS:
     arrows: 0.500000
     SCCS (1):
      Scc:
       {f#(x, f(a(), a())) -> f#(f(f(a(), a()), a()), x)}
      
      SCC (1):
       Strict:
        {f#(x, f(a(), a())) -> f#(f(f(a(), a()), a()), x)}
       Weak:
       {f(x, f(a(), a())) -> f(f(f(a(), a()), a()), x)}
       Open