Satisfiability problem (SAT) is one of classical combinational problems, which is proved to be a famous NP-complete problem [1]. SAT is widely used [2], [3]. At present, research on algorithm of SAT has made significant progress [4], [5]. Among these algorithms, some are non polynomial even though they can obtain exact solution of SAT; and heuristic algorithm cannot obtain exact solution of SAT, even though it is polynomial. Therefore, it is essential to find an exact algorithm of SAT which is more...