YES
Time: 0.000579
TRS:
 {f a() -> f b(),
  g b() -> g a()}
 DP:
  DP:
   {f# a() -> f# b(),
    g# b() -> g# a()}
  TRS:
  {f a() -> f b(),
   g b() -> g a()}
  UR:
   {}
   EDG:
    {(g# b() -> g# a(), g# b() -> g# a())
     (f# a() -> f# b(), f# a() -> f# b())}
    EDG:
     {}
     EDG:
      {}
      EDG:
       {}
       STATUS:
        arrows: 1.000000
        SCCS (0):