MAYBE
Time: 0.001716
TRS:
 {f(a(), X) -> f(X, X),
        c() -> a(),
        c() -> b()}
 DP:
  DP:
   {f#(a(), X) -> f#(X, X)}
  TRS:
  {f(a(), X) -> f(X, X),
         c() -> a(),
         c() -> b()}
  UR:
   {d(x, y) -> x,
    d(x, y) -> y}
   EDG:
    {(f#(a(), X) -> f#(X, X), f#(a(), X) -> f#(X, X))}
    STATUS:
     arrows: 0.000000
     SCCS (1):
      Scc:
       {f#(a(), X) -> f#(X, X)}
      
      SCC (1):
       Strict:
        {f#(a(), X) -> f#(X, X)}
       Weak:
       {f(a(), X) -> f(X, X),
              c() -> a(),
              c() -> b()}
       Fail