Option -P leads to signal 8

[subwaystation]

I was trying to use wfmash in mapping mode to generate all versus all mappings of 2k e. coli. @AndreaGuarracino you already have the FASTA.

However, when no minmers are found, I get a signal 8:

[mashmap] MashMap v3.1.1
[mashmap] Reference = [/home-link/afaaj01/data/ecoli_2146/ecoli_2146.fa.gz]
[mashmap] Query = [/home-link/afaaj01/data/ecoli_2146/ecoli_2146.fa.gz]
[mashmap] Kmer size = 19
[mashmap] Sketch size = 298
[mashmap] Segment length = 5000 (read split allowed)
[mashmap] Block length min = 25000
[mashmap] Chaining gap max = 20000
[mashmap] Mappings per segment = 2145
[mashmap] Percentage identity threshold = 90%
[mashmap] Skip self mappings
[mashmap] Hypergeometric filter w/ delta = 0 and confidence 0.999
[mashmap] Mapping output file = /dev/stdout
[mashmap] Filter mode = 1 (1 = map, 2 = one-to-one, 3 = none)
[mashmap] Execution threads  = 20
[mashmap::skch::Sketch::build] minmer windows picked from reference = 0
[mashmap::skch::Sketch::index] unique minmers = 0
[mashmap::skch::Sketch::computeFreqHist] No minmers.
[wfmash::map] time spent computing the reference index: 0.0131097 sec
[mashmap::skch::Map::mapQuery] mapped  0.00% @ 0.00e+00 bp/s elapsed: 00:00:00:00 remain: 00:00:00:00
Command terminated by signal 8

Is there a way to circumvent this? Is this intended?

I am still wondering, if running wfmash in all versus all mapping mode on all sample at once will give the equivalent results to running wfmash in all versus all mapping mode for each prefix in the given sequences.

Thanks for any tips!

[subwaystation]

In total, I can observe this for 3 sequences:

wfmash_map_0110_ecoli_2146_s5k_p90.BL21-Gold(DE3)pLysS_AG_f399789#1#NC_012947.1.time:[mashmap::skch::Sketch::computeFreqHist] No minmers.
wfmash_map_0110_ecoli_2146_s5k_p90.clone_D_i14_e789781#1#NC_017652.1.time:[mashmap::skch::Sketch::computeFreqHist] No minmers.
wfmash_map_0110_ecoli_2146_s5k_p90.clone_D_i2_32d971c#1#NC_017651.1.time:[mashmap::skch::Sketch::computeFreqHist] No minmers.