cnf_sat - Perform SAT solving with CNF input
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   cnf_sat [-h] [-a <assgined_filename>] [-f <output_filename>] [-t <timeout>]
   [-v <verbose>] [-b] <cnf_filename>

   Perform SAT solving with CirCUs after reading CNF file

   -b
   If the given CNF has small number of variables and clause then the BDD is
   built from the CNF clauses. If the monolithic BDD is built then we can
   conclude SAT or UNSAT, otherwise the normal SAT algorithm is invoked.

   -t <timeOutPeriod>
   Specify the time out period (in seconds) after which the command aborts. By
   default this option is set to infinity.

   -f <output_filename>
   Specify the output filename to save the satisfying assignments and the
   statistics of SAT solving.
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   Last updated on 20100410 00h02