MAYBE
Input TRS:
      1: b(b(b(x1))) -> b(b(a(b(a(b(a(b(x1))))))))
      2: b(a(b(b(x1)))) -> b(a(b(a(b(a(a(b(x1))))))))
      3: b(b(a(b(a(b(a(a(b(x1))))))))) -> b(b(b(b(a(b(x1))))))
Number of strict rules: 3
Direct POLO(bPol) ... failed.
Uncurrying ... failed.
Dependency Pairs:
     #1: #b(a(b(b(x1)))) -> #b(a(b(a(b(a(a(b(x1))))))))
     #2: #b(a(b(b(x1)))) -> #b(a(b(a(a(b(x1))))))
     #3: #b(a(b(b(x1)))) -> #b(a(a(b(x1))))
     #4: #b(b(a(b(a(b(a(a(b(x1))))))))) -> #b(b(b(b(a(b(x1))))))
     #5: #b(b(a(b(a(b(a(a(b(x1))))))))) -> #b(b(b(a(b(x1)))))
     #6: #b(b(a(b(a(b(a(a(b(x1))))))))) -> #b(b(a(b(x1))))
     #7: #b(b(a(b(a(b(a(a(b(x1))))))))) -> #b(a(b(x1)))
     #8: #b(b(b(x1))) -> #b(b(a(b(a(b(a(b(x1))))))))
     #9: #b(b(b(x1))) -> #b(a(b(a(b(a(b(x1)))))))
     #10: #b(b(b(x1))) -> #b(a(b(a(b(x1)))))
     #11: #b(b(b(x1))) -> #b(a(b(x1)))
Number of SCCs: 1, DPs: 3
  SCC { #4..6 }
POLO(Sum)... POLO(max)... QLPOS... POLO(mSum)... succeeded.
      a 	w: 75024
      b 	w: max(x1 - 42738, 0)
      #b 	w: max(x1 + 53189, 0)
    USABLE RULES: { 1..3 }
    Removed DPs: #4 #5
Number of SCCs: 1, DPs: 1
  SCC { #6 }
POLO(Sum)... POLO(max)... QLPOS... POLO(mSum)... QWPOpS(mSum)... Mat2b... failed.
Finding a loop...  failed.