mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-24 01:25:31 +00:00
Code Activity

fix name to divisible, guard under smtlib2_compliant as sugguested in #1757

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-09-01 18:22:10 -07:00
parent 94ffa3963e
commit 85e7b18451
3 changed files with 17 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

20
src/sat/ba_solver.cpp
View file

@ -1551,10 +1551,10 @@ namespace sat {
if (k == 1 && lit == null_literal) {
literal_vector _lits(lits);
s().mk_clause(_lits.size(), _lits.c_ptr(), learned);
return 0;
return nullptr;
}
if (!learned && clausify(lit, lits.size(), lits.c_ptr(), k)) {
return 0;
return nullptr;
}
void * mem = m_allocator.allocate(card::get_obj_size(lits.size()));
card* c = new (mem) card(next_id(), lit, lits, k);
@ -1615,7 +1615,7 @@ namespace sat {
bool units = true;
for (wliteral wl : wlits) units &= wl.first == 1;
if (k == 0 && lit == null_literal) {
return 0;
return nullptr;
}
if (units || k == 1) {
literal_vector lits;
@ -3405,7 +3405,7 @@ namespace sat {
return;
}
for (wliteral l : p1) {
SASSERT(m_weights[l.second.index()] == 0);
SASSERT(m_weights.size() <= l.second.index() || m_weights[l.second.index()] == 0);
m_weights.setx(l.second.index(), l.first, 0);
mark_visited(l.second);
}
@ -3837,8 +3837,8 @@ namespace sat {
reset_active_var_set();
m_wlits.reset();
uint64_t sum = 0;
if (m_bound == 1) return 0;
if (m_overflow) return 0;
if (m_bound == 1) return nullptr;
if (m_overflow) return nullptr;
for (bool_var v : m_active_vars) {
int coeff = get_int_coeff(v);
@ -3850,7 +3850,7 @@ namespace sat {
}
if (m_overflow || sum >= UINT_MAX/2) {
return 0;
return nullptr;
}
else {
return add_pb_ge(null_literal, m_wlits, m_bound, true);
@ -3905,7 +3905,7 @@ namespace sat {
++k;
}
if (k == 1) {
return 0;
return nullptr;
}
while (!m_wlits.empty()) {
wliteral wl = m_wlits.back();
@ -3928,7 +3928,7 @@ namespace sat {
++num_max_level;
}
}
if (m_overflow) return 0;
if (m_overflow) return nullptr;
if (slack >= k) {
#if 0
@ -3937,7 +3937,7 @@ namespace sat {
std::cout << "not asserting\n";
display(std::cout, m_A, true);
#endif
return 0;
return nullptr;
}
// produce asserting cardinality constraint