void Solver::reduceDB(void)
{
int i, j;
double extra_lim = cla_inc / learnts.size(); // Remove any clause below this activity
sort(learnts, reduceDB_lt());
for (i = j = 0; i < learnts.size() / 2; i++){
if (!learnts[i]->locked(*this))
learnts[i]->remove(*this);
else
learnts[j++] = learnts[i];
}
for (; i < learnts.size(); i++){
if (!learnts[i]->locked(*this) && learnts[i]->activity() < extra_lim)
learnts[i]->remove(*this);
else
learnts[j++] = learnts[i];
}
learnts.shrink(i - j);
}
void Solver::reduceDB()
{
int i, j;
nbReduceDB++;
sort(learnts, reduceDB_lt());
for (i = j = 0; i < learnts.size() / RATIOREMOVECLAUSES; i++){
if (learnts[i]->size() > 2 && !locked(*learnts[i]) && learnts[i]->activity()>2){
removeClause(*learnts[i]);
}
else
learnts[j++] = learnts[i];
}
for (; i < learnts.size(); i++){
learnts[j++] = learnts[i];
}
learnts.shrink(i - j);
nof_learnts *= learntsize_inc;
}
void MiniSATP::reduceDB()
{
// Added Line
// Prevent any clause removal for now
int i, j;
double extra_lim = cla_inc / learnts.size(); // Remove any clause below this activity
sort(learnts, reduceDB_lt());
for (i = j = 0; i < learnts.size() / 2; i++){
if (learnts[i]->size() > 2 && !locked(*learnts[i]))
removeClause(*learnts[i]);
else
learnts[j++] = learnts[i];
}
for (; i < learnts.size(); i++){
if (learnts[i]->size() > 2 && !locked(*learnts[i]) && learnts[i]->activity() < extra_lim)
removeClause(*learnts[i]);
else
learnts[j++] = learnts[i];
}
learnts.shrink(i - j);
}