Hello,
If you are actually doing this homework assignment as part of the course, then
please contact your tutors. Otherwise you might want to provide further
information on what you intend to achieve as the instructions given in said PDF
are very much focussed on the specific exercise rather than being general usage
instructions for MiniSat.
For the very first steps, simply try running ./minisat_release --help and you
will be greeted by general usage information.
Hope this helps,
Michael