MAYBE

Problem:
 a(x1) -> x1
 a(b(a(x1))) -> a(x1)
 b(a(a(b(x1)))) -> a(a(a(a(b(b(b(x1)))))))
 a(a(a(a(x1)))) -> b(x1)

Proof:
 DP Processor:
  DPs:
   b#(a(a(b(x1)))) -> b#(b(x1))
   b#(a(a(b(x1)))) -> b#(b(b(x1)))
   b#(a(a(b(x1)))) -> a#(b(b(b(x1))))
   b#(a(a(b(x1)))) -> a#(a(b(b(b(x1)))))
   b#(a(a(b(x1)))) -> a#(a(a(b(b(b(x1))))))
   b#(a(a(b(x1)))) -> a#(a(a(a(b(b(b(x1)))))))
   a#(a(a(a(x1)))) -> b#(x1)
  TRS:
   a(x1) -> x1
   a(b(a(x1))) -> a(x1)
   b(a(a(b(x1)))) -> a(a(a(a(b(b(b(x1)))))))
   a(a(a(a(x1)))) -> b(x1)
  Open