PropResult HyperEngine::prop_tri_clause_with_acestor_info(
watch_subarray_const::const_iterator i
, const Lit lit1
, PropBy& confl
) {
const Lit lit2 = i->lit2();
lbool val2 = value(lit2);
//literal is already satisfied, nothing to do
if (val2 == l_True)
return PROP_NOTHING;
const Lit lit3 = i->lit3();
lbool val3 = value(lit3);
//literal is already satisfied, nothing to do
if (val3 == l_True)
return PROP_NOTHING;
if (val2 == l_False && val3 == l_False) {
return handle_prop_tri_fail(i, lit1, confl);
}
if (val2 == l_Undef && val3 == l_False) {
return propTriHelperComplex(lit2, ~lit1, lit3, i->red());
}
if (val3 == l_Undef && val2 == l_False) {
return propTriHelperComplex(lit3, ~lit1, lit2, i->red());
}
return PROP_NOTHING;
}
inline bool PropEngine::propTriClauseAnyOrder(
watch_subarray_const::const_iterator i
, const Lit lit1
, PropBy& confl
) {
const Lit lit2 = i->lit2();
lbool val2 = value(lit2);
//literal is already satisfied, nothing to do
if (val2 == l_True)
return true;
const Lit lit3 = i->lit3();
lbool val3 = value(lit3);
//literal is already satisfied, nothing to do
if (val3 == l_True)
return true;
if (val2 == l_False && val3 == l_False) {
#ifdef VERBOSE_DEBUG_FULLPROP
cout << "Conflict from "
<< lit1 << " , "
<< i->lit2() << " , "
<< i->lit3() << endl;
#endif //VERBOSE_DEBUG_FULLPROP
confl = PropBy(~lit1, i->lit3(), i->red());
//Update stats
if (i->red())
lastConflictCausedBy = ConflCausedBy::trired;
else
lastConflictCausedBy = ConflCausedBy::triirred;
failBinLit = i->lit2();
qhead = trail.size();
return false;
}
if (val2 == l_Undef && val3 == l_False) {
propTriHelperAnyOrder<update_bogoprops>(
lit1
, lit2
, lit3
, i->red()
);
return true;
}
if (val3 == l_Undef && val2 == l_False) {
propTriHelperAnyOrder<update_bogoprops>(
lit1
, lit3
, lit2
, i->red()
);
return true;
}
return true;
}
inline bool PropEngine::propBinaryClause(
watch_subarray_const::const_iterator i
, const Lit p
, PropBy& confl
) {
const lbool val = value(i->lit2());
if (val == l_Undef) {
#ifdef STATS_NEEDED
if (i->red())
propStats.propsBinRed++;
else
propStats.propsBinIrred++;
#endif
enqueue<update_bogoprops>(i->lit2(), PropBy(~p, i->red()));
} else if (val == l_False) {
//Update stats
if (i->red())
lastConflictCausedBy = ConflCausedBy::binred;
else
lastConflictCausedBy = ConflCausedBy::binirred;
confl = PropBy(~p, i->red());
failBinLit = i->lit2();
qhead = trail.size();
return false;
}
return true;
}
PropResult PropEngine::handle_prop_tri_fail(
watch_subarray_const::const_iterator i
, Lit lit1
, PropBy& confl
) {
#ifdef VERBOSE_DEBUG_FULLPROP
cout << "Conflict from "
<< lit1 << " , "
<< i->lit2() << " , "
<< i->lit3() << endl;
#endif //VERBOSE_DEBUG_FULLPROP
confl = PropBy(~lit1, i->lit3(), i->red());
//Update stats
if (i->red())
lastConflictCausedBy = ConflCausedBy::trired;
else
lastConflictCausedBy = ConflCausedBy::triirred;
failBinLit = i->lit2();
qhead = trail.size();
return PROP_FAIL;
}