Satisfiability Modulo Theories
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چکیده
DPLL During search, DPLL states are pairs M ||F where M is a truth assignment F is a set of clauses (problem clauses + learned clauses) The truth assignment is a list of literals: either decision literals (guesses) or implied literals (by unit propagation). If literal l is implied by unit propagation from clause C ∨ l, then the clause is recorded as the explanation for l. This is written lC∨l in M . During conflict resolution, the state is written M ||F ||C where M and F are as before, and C is a clause. C is false in the assigment M (written M |= ¬C) C is either a clause of F or is derived by resolution from clauses of F . SAT/SMT – p.37/50
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تاریخ انتشار 2011