mcsqs for 4 eleement mixing and n=64 is getting killed

Alloy Theoretic Automated Toolkit (ATAT)
1

mcsqs.log writes as
Generating supercells…
Writing supercells…
Even after 10 hours of serial execution.

2

Moreover, sqscell.out file says it has 587 supercells in the first line but only 213 supercells are mentioned in the format given.

3

I’d need you input files…