banana: rank SA LCP suffix
  0  5  0  a
  1  3  1  ana
  2  1  3  anana
  3  0  0  banana
  4  4  0  na
  5  2  2  nana
ISA: 3 2 5 1 4 0
doubling rounds: 2
lcp-intervals of banana$ (ranks include $ at 0):  3-[2..3]  1-[1..3]  2-[5..6]  0-[0..6]
  4 intervals
mmiissiissiippii$: types LLSSLLSSLLSSLLLLS
  LMS positions: 2 6 10 16
  SA: 15 14 10 6 2 11 7 3 1 0 13 12 9 5 8 4
  SA-IS levels: 2  [level 0: n=17 lms=4 names=3]  [level 1: n=4 lms=1 names=1]