YES
Time: 0.000431
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)}
  EDG:
   {}
   STATUS:
    arrows: 1.000000
    SCCS (0):