22 #include <minisat/core/Solver.h> 23 #include <minisat/simp/SimpSolver.h> 26 #error "Expected HAVE_MINISAT2" 29 void convert(
const bvt &bv, Minisat::vec<Minisat::Lit> &dest)
31 dest.capacity(bv.size());
35 dest.push(Minisat::mkLit(it->var_no(), it->sign()));
76 catch(Minisat::OutOfMemoryException)
79 status = statust::ERROR;
80 throw std::bad_alloc();
98 return "MiniSAT 2.2.1 without simplifier";
103 return "MiniSAT 2.2.1 with simplifier";
109 while((
unsigned)
solver->nVars()<no_variables())
124 else if(!it->is_false())
127 it->var_no() < (unsigned)
solver->nVars(),
"variable not added yet");
131 Minisat::vec<Minisat::Lit> c;
142 catch(Minisat::OutOfMemoryException)
145 status = statust::ERROR;
146 throw std::bad_alloc();
168 (no_variables()-1) <<
" variables, " <<
169 solver->nClauses() <<
" clauses" << eom;
179 "SAT checker inconsistent: instance is UNSATISFIABLE" << eom;
184 bool has_false=
false;
193 "got FALSE as assumption: instance is UNSATISFIABLE" << eom;
197 Minisat::vec<Minisat::Lit> solver_assumptions;
198 convert(assumptions, solver_assumptions);
200 using Minisat::lbool;
204 void (*old_handler)(int)=SIG_ERR;
206 if(time_limit_seconds!=0)
210 if(old_handler==SIG_ERR)
211 warning() <<
"Failed to set solver time limit" << eom;
213 alarm(time_limit_seconds);
216 lbool solver_result=
solver->solveLimited(solver_assumptions);
218 if(old_handler!=SIG_ERR)
221 signal(SIGALRM, old_handler);
227 if(time_limit_seconds!=0)
230 "Time limit ignored (not supported on Win32 yet)" <<
messaget::eom;
234 solver->solve(solver_assumptions) ? l_True : l_False;
238 if(solver_result==l_True)
241 "SAT checker: instance is SATISFIABLE" << eom;
244 return resultt::P_SATISFIABLE;
246 else if(solver_result==l_False)
249 "SAT checker: instance is UNSATISFIABLE" << eom;
254 "SAT checker: timed out or other error" << eom;
255 status=statust::ERROR;
256 return resultt::P_ERROR;
261 status=statust::UNSAT;
262 return resultt::P_UNSATISFIABLE;
264 catch(Minisat::OutOfMemoryException)
267 "SAT checker ran out of memory" << eom;
268 status=statust::ERROR;
269 return resultt::P_ERROR;
281 bool sign = a.
sign();
284 solver->model.growTo(v + 1);
286 solver->model[v] = Minisat::lbool(value);
288 catch(Minisat::OutOfMemoryException)
291 status = statust::ERROR;
292 throw std::bad_alloc();
298 solver(_solver), time_limit_seconds(0)
319 for(
int i=0; i<
solver->conflict.size(); i++)
320 if(var(
solver->conflict[i])==v)
359 catch(Minisat::OutOfMemoryException)
363 throw std::bad_alloc();
satcheck_minisat_simplifiert()
virtual void lcnf(const bvt &bv) final
virtual const std::string solver_text()
void set_polarity(literalt a, bool value)
virtual const std::string solver_text() final
#define CHECK_RETURN(CONDITION)
static mstreamt & eom(mstreamt &m)
virtual void set_frozen(literalt a) final
#define forall_literals(it, bv)
#define INVARIANT(CONDITION, REASON)
satcheck_minisat_no_simplifiert()
virtual void set_assignment(literalt a, bool value) override
mstreamt & warning() const
void convert(const bvt &bv, Minisat::vec< Minisat::Lit > &dest)
static Minisat::Solver * solver_to_interrupt
int solver(std::istream &in)
virtual bool is_in_conflict(literalt a) const override
satcheck_minisat2_baset(T *)
#define PRECONDITION(CONDITION)
mstreamt & status() const
bool is_eliminated(literalt a) const
virtual ~satcheck_minisat2_baset()
virtual void set_assumptions(const bvt &_assumptions) override
virtual tvt l_get(literalt a) const final
static void interrupt_solver(int signum)
std::vector< literalt > bvt
virtual resultt prop_solve() override