YES
Input TRS:
      1: r1(a(x1)) -> a(a(a(r1(x1))))
      2: r2(a(x1)) -> a(a(a(r2(x1))))
      3: a(l1(x1)) -> l1(a(a(a(x1))))
      4: a(a(l2(x1))) -> l2(a(a(x1)))
      5: r1(b(x1)) -> l1(b(x1))
      6: r2(b(x1)) -> l2(a(b(x1)))
      7: b(l1(x1)) -> b(r2(x1))
      8: b(l2(x1)) -> b(r1(x1))
      9: a(a(x1)) -> x1
Number of strict rules: 9
Direct POLO(bPol) ... failed.
Uncurrying ... failed.
Dependency Pairs:
     #1: #r2(a(x1)) -> #a(a(a(r2(x1))))
     #2: #r2(a(x1)) -> #a(a(r2(x1)))
     #3: #r2(a(x1)) -> #a(r2(x1))
     #4: #r2(a(x1)) -> #r2(x1)
     #5: #r2(b(x1)) -> #a(b(x1))
     #6: #b(l1(x1)) -> #b(r2(x1))
     #7: #b(l1(x1)) -> #r2(x1)
     #8: #a(l1(x1)) -> #a(a(a(x1)))
     #9: #a(l1(x1)) -> #a(a(x1))
     #10: #a(l1(x1)) -> #a(x1)
     #11: #r1(a(x1)) -> #a(a(a(r1(x1))))
     #12: #r1(a(x1)) -> #a(a(r1(x1)))
     #13: #r1(a(x1)) -> #a(r1(x1))
     #14: #r1(a(x1)) -> #r1(x1)
     #15: #b(l2(x1)) -> #b(r1(x1))
     #16: #b(l2(x1)) -> #r1(x1)
     #17: #a(a(l2(x1))) -> #a(a(x1))
     #18: #a(a(l2(x1))) -> #a(x1)
Number of SCCs: 4, DPs: 9
  SCC { #14 }
POLO(Sum)... succeeded.
      a 	w: x1 + 1
      b 	w: 0
      l1	w: 0
      l2	w: 0
      #r1	w: x1
      r1	w: 0
      #r2	w: 0
      #a 	w: 0
      r2	w: 0
      #b 	w: 0
    USABLE RULES: { }
    Removed DPs: #14
Number of SCCs: 3, DPs: 8
  SCC { #4 }
POLO(Sum)... succeeded.
      a 	w: x1 + 1
      b 	w: 0
      l1	w: 0
      l2	w: 0
      #r1	w: 0
      r1	w: 0
      #r2	w: x1
      #a 	w: 0
      r2	w: 0
      #b 	w: 0
    USABLE RULES: { }
    Removed DPs: #4
Number of SCCs: 2, DPs: 7
  SCC { #6 #15 }
POLO(Sum)... POLO(max)... QLPOS... POLO(mSum)... QWPOpS(mSum)... Mat2b... succeeded.
      a 	w: [0,1;1,0] * x1
      b 	w: [0;2]
      l1	w: x1 + [39090;39090]
      l2	w: [0,0;0,1] * x1 + [8557;39091]
      #r1	w: [0;0]
      r1	w: x1 + [39090;39090]
      #r2	w: [0;0]
      #a 	w: [0;0]
      r2	w: x1 + [39089;39089]
      #b 	w: [0,1;0,0] * x1
    USABLE RULES: { 1..9 }
    Removed DPs: #6 #15
Number of SCCs: 1, DPs: 5
  SCC { #8..10 #17 #18 }
POLO(Sum)... succeeded.
      a 	w: x1
      b 	w: 20977
      l1	w: x1 + 15922
      l2	w: x1 + 8946
      #r1	w: 0
      r1	w: 14681
      #r2	w: 0
      #a 	w: x1
      r2	w: 2998
      #b 	w: 0
    USABLE RULES: { 3 4 7..9 }
    Removed DPs: #8..10 #17 #18
Number of SCCs: 0, DPs: 0