YES
Time: 0.015336
TRS:
 {  f x -> g x,
  f a() -> f b(),
  g b() -> g a()}
 DP:
  DP:
   {  f# x -> g# x,
    f# a() -> f# b(),
    g# b() -> g# a()}
  TRS:
  {  f x -> g x,
   f a() -> f b(),
   g b() -> g a()}
  UR:
   {}
   EDG:
    {(f# a() -> f# b(), f# x -> g# x)
     (f# x -> g# x, g# b() -> g# a())}
    STATUS:
     arrows: 0.777778
     SCCS (0):