MAYBE
Time: 0.000687
TRS:
 {f(x, s s y) -> f(y, x),
    f(s x, y) -> f(x, s s x)}
 DP:
  DP:
   {f#(x, s s y) -> f#(y, x),
      f#(s x, y) -> f#(x, s s x)}
  TRS:
  {f(x, s s y) -> f(y, x),
     f(s x, y) -> f(x, s s x)}
  EDG:
   {(f#(x, s s y) -> f#(y, x), f#(s x, y) -> f#(x, s s x))
    (f#(x, s s y) -> f#(y, x), f#(x, s s y) -> f#(y, x))
    (f#(s x, y) -> f#(x, s s x), f#(x, s s y) -> f#(y, x))
    (f#(s x, y) -> f#(x, s s x), f#(s x, y) -> f#(x, s s x))}
   STATUS:
    arrows: 0.000000
    SCCS (1):
     Scc:
      {f#(x, s s y) -> f#(y, x),
         f#(s x, y) -> f#(x, s s x)}
     
     SCC (2):
      Strict:
       {f#(x, s s y) -> f#(y, x),
          f#(s x, y) -> f#(x, s s x)}
      Weak:
      {f(x, s s y) -> f(y, x),
         f(s x, y) -> f(x, s s x)}
      Open