YES
Time: 0.000699
TRS:
 {a a x -> a b a x}
 DP:
  DP:
   {a# a x -> a# b a x}
  TRS:
  {a a x -> a b a x}
  UR:
   {a a x -> a b a x}
   EDG:
    {}
    STATUS:
     arrows: 1.000000
     SCCS (0):