YES
Time: 0.001847
TRS:
 {h(x, x) -> x,
  f(x, y) -> h(x, y),
  f(x, y) -> h(y, x)}
 DP:
  DP:
   {f#(x, y) -> h#(x, y),
    f#(x, y) -> h#(y, x)}
  TRS:
  {h(x, x) -> x,
   f(x, y) -> h(x, y),
   f(x, y) -> h(y, x)}
  UR:
   {}
   EDG:
    {}
    STATUS:
     arrows: 1.000000
     SCCS (0):