$ mkrcidx -db seqs4 -v
reading file "seqs4"
total length of sequences: 42 (including 3 separators)
for this input size and alphabet size, the maximal prefixlength
(argument of option -pl) is 2,
the recommended prefixlength is 1
total length of sequences: 85 (including 7 separators)
alphabet "aAcCgGtTuUnsywrkvbdhmNSYWRKVBDHM" (size 32) mapped to "acgtn" (size 5)
create file "seqs4.rcm.tis"
create file "seqs4.rcm.des"
create file "seqs4.rcm.sds"
create file "seqs4.rcm.lcp"
initializing data structures
sorting suffixes according to prefix of length 1
sorting all buckets
create file "seqs4.rcm.llv"
create file "seqs4.rcm.suf"
create file "seqs4.rcm.bwt"
create file "seqs4.rcm.prj"
create file "seqs4.rcm.al1"
# overall space peak: main=0.08 MB,  secondary=0.00 MB
