Yea well I was not using all the arguments.
So again I tried:
/home/andreea/kenlm/build/bin/lmplz --order 5 --temp_prefix tmp --memory 50% --text vocab.txt --arpa words.arpa --prune 0 0 1
Then:
/home/andreea/kenlm/build/bin/build_binary -a 255 -q 8 -v -trie words.arpa lm.binary
And for this last command I got: Quantization is only implemented in the trie data structure.
When I ran again the generate_package.py as I mentioned before I got exactly the same thing…