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integrate intblast solver

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This commit is contained in:
Nikolaj Bjorner 2023-12-10 13:00:43 -08:00
parent 9931c811ca
commit 09c2e0dd6e
4 changed files with 56 additions and 11 deletions
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30
src/sat/smt/intblast_solver.cpp
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@ -78,6 +78,7 @@ namespace intblast {
literals.push_back(a);
}
m_core.reset();
m_solver = mk_smt2_solver(m, s.params(), symbol::null);
expr_ref_vector es(m);
@ -86,11 +87,23 @@ namespace intblast {
translate(es);
for (auto e : es)
m_solver->assert_expr(e);
for (auto const& [src, vi] : m_vars) {
auto const& [v, b] = vi;
m_solver->assert_expr(a.mk_le(a.mk_int(0), v));
m_solver->assert_expr(a.mk_lt(v, a.mk_int(b)));
}
lbool r = m_solver->check_sat(0, nullptr);
lbool r = m_solver->check_sat(es);
if (r == l_false) {
expr_ref_vector core(m);
m_solver->get_unsat_core(core);
obj_map<expr, unsigned> e2index;
for (unsigned i = 0; i < es.size(); ++i)
e2index.insert(es.get(i), i);
for (auto e : core)
m_core.push_back(literals[e2index[e]]);
}
return r;
};
@ -290,11 +303,6 @@ namespace intblast {
}
for (unsigned i = 0; i < es.size(); ++i)
es[i] = translated[es.get(i)];
for (auto const& [src, vi] : m_vars) {
auto const& [v, b] = vi;
es.push_back(a.mk_le(a.mk_int(0), v));
es.push_back(a.mk_lt(v, a.mk_int(b)));
}
}
rational solver::get_value(expr* e) const {
@ -313,4 +321,8 @@ namespace intblast {
return val;
}
sat::literal_vector const& solver::unsat_core() {
return m_core;
}
}