static void track_clause(sat::solver& dst, sat::literal_vector& lits, sat::literal_vector& assumptions, vector<sat::literal_vector>& tracking_clauses) { sat::literal lit = sat::literal(dst.mk_var(true, false), false); tracking_clauses.set(lit.var(), lits); lits.push_back(~lit); dst.mk_clause(lits.size(), lits.c_ptr()); assumptions.push_back(lit); }
static void brute_force_consequences(sat::solver& s, sat::literal_vector const& asms, sat::literal_vector const& gamma, sat::literal_vector& backbones) { for (unsigned i = 0; i < gamma.size(); ++i) { sat::literal nlit = ~gamma[i]; sat::literal_vector asms1(asms); asms1.push_back(nlit); lbool r = s.check(asms1.size(), asms1.c_ptr()); if (r == l_false) { backbones.push_back(gamma[i]); } } }
void read_clause(Buffer & in, std::ostream& err, sat::solver & solver, sat::literal_vector & lits) { int parsed_lit; int var; lits.reset(); while (true) { parsed_lit = parse_int(in, err); if (parsed_lit == 0) break; var = abs(parsed_lit); SASSERT(var > 0); while (static_cast<unsigned>(var) >= solver.num_vars()) solver.mk_var(); lits.push_back(sat::literal(var, parsed_lit < 0)); } }