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resolve bug about not translating managers correctly for the second phase of the greedy cubing, and the frugal fallback

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Ilana Shapiro 2025-08-10 19:33:19 -07:00
parent a9228f418a
commit 8493c309ab
1 changed files with 6 additions and 5 deletions
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11
src/smt/smt_parallel.cpp
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@ -44,6 +44,7 @@ namespace smt {
ast_translation g2l(p.ctx.m, m); // global to local context -- MUST USE p.ctx.m, not ctx->m, AS GLOBAL MANAGER!!!
ast_translation l2g(m, p.ctx.m); // local to global context
while (m.inc()) {
IF_VERBOSE(0, verbose_stream() << "Worker " << id << " checking cubes\n");
vector<expr_ref_vector> cubes;
b.get_cubes(g2l, cubes);
if (cubes.empty())
@ -323,9 +324,9 @@ namespace smt {
auto add_split_atom = [&](expr* atom, unsigned start) {
unsigned stop = m_cubes.size();
for (unsigned i = start; i < stop; ++i) {
m_cubes.push_back(m_cubes[i]);
m_cubes.back().push_back(m.mk_not(atom));
m_cubes[i].push_back(atom);
m_cubes.push_back(m_cubes[i]); // push copy of m_cubes[i]
m_cubes.back().push_back(m.mk_not(atom)); // add ¬atom to the copy
m_cubes[i].push_back(atom); // add atom to the original
}
};
@ -363,7 +364,7 @@ namespace smt {
if (greedy_mode) {
// Start as greedy: split all cubes on new atoms
for (; a_worker_start_idx < A_worker.size(); ++a_worker_start_idx) {
expr_ref g_atom(A_worker[a_worker_start_idx], l2g.to());
expr_ref g_atom(l2g(A_worker[a_worker_start_idx]), l2g.to());
if (m_split_atoms.contains(g_atom))
continue;
m_split_atoms.push_back(g_atom);
@ -381,7 +382,7 @@ namespace smt {
if (!greedy_mode) {
// Split only cubes added in *this call* on the new A_worker atoms (starting where we left off from the initial greedy phase)
for (unsigned i = a_worker_start_idx; i < A_worker.size(); ++i) {
expr_ref g_atom(A_worker[i], l2g.to());
expr_ref g_atom(l2g(A_worker[i]), l2g.to());
if (!m_split_atoms.contains(g_atom))
m_split_atoms.push_back(g_atom);
add_split_atom(g_atom, initial_m_cubes_size); // start from the initial size of m_cubes to ONLY split the NEW worker cubes