MAYBE
Time: 0.000732
TRS:
 { b(x, b(z, y)) -> f b(f f z, c(x, z, y)),
         b(y, z) -> z,
  f c(a(), z, x) -> b(a(), z)}
 DP:
  DP:
   { b#(x, b(z, y)) -> b#(f f z, c(x, z, y)),
     b#(x, b(z, y)) -> f# z,
     b#(x, b(z, y)) -> f# b(f f z, c(x, z, y)),
     b#(x, b(z, y)) -> f# f z,
    f# c(a(), z, x) -> b#(a(), z)}
  TRS:
  { b(x, b(z, y)) -> f b(f f z, c(x, z, y)),
          b(y, z) -> z,
   f c(a(), z, x) -> b(a(), z)}
  EDG:
   {(b#(x, b(z, y)) -> f# f z, f# c(a(), z, x) -> b#(a(), z))
    (b#(x, b(z, y)) -> f# z, f# c(a(), z, x) -> b#(a(), z))
    (b#(x, b(z, y)) -> f# b(f f z, c(x, z, y)), f# c(a(), z, x) -> b#(a(), z))
    (f# c(a(), z, x) -> b#(a(), z), b#(x, b(z, y)) -> b#(f f z, c(x, z, y)))
    (f# c(a(), z, x) -> b#(a(), z), b#(x, b(z, y)) -> f# z)
    (f# c(a(), z, x) -> b#(a(), z), b#(x, b(z, y)) -> f# b(f f z, c(x, z, y)))
    (f# c(a(), z, x) -> b#(a(), z), b#(x, b(z, y)) -> f# f z)}
   STATUS:
    arrows: 0.720000
    SCCS (1):
     Scc:
      { b#(x, b(z, y)) -> f# z,
        b#(x, b(z, y)) -> f# b(f f z, c(x, z, y)),
        b#(x, b(z, y)) -> f# f z,
       f# c(a(), z, x) -> b#(a(), z)}
     
     SCC (4):
      Strict:
       { b#(x, b(z, y)) -> f# z,
         b#(x, b(z, y)) -> f# b(f f z, c(x, z, y)),
         b#(x, b(z, y)) -> f# f z,
        f# c(a(), z, x) -> b#(a(), z)}
      Weak:
      { b(x, b(z, y)) -> f b(f f z, c(x, z, y)),
              b(y, z) -> z,
       f c(a(), z, x) -> b(a(), z)}
      Open