Question: how megahit deals with different size read sets?

[Valentin-Bio-zz]

Hello , I just want to understand what happens to the iterative assembly on each k-mer step. Lets say I have a read set of different lengths. the minimum read length is of 40bp and the longer reads are of 150bp. (the great majority of the reads are on the 130-150 bp range). So if I let megahit choose the k-mer sizes how it deals with the shorter reads? I was taking a look into the log file of a running assembly and I see this "k-max reset to: 141" this means that the last iteration is going to use a k-mer size of 141bp. So I assume that shorter reads are discarded due to k-mer > shorter input reads and it will employ the previous assembled contigs plus the input reads that are equal or longer to the last k-mer size ?