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Add initial value setting for variables in Z3 API, solver, and optimize modules

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This commit is contained in:
Nikolaj Bjorner 2024-09-18 16:13:15 +03:00
parent 0ba306e7b3
commit 48712b4f60
31 changed files with 297 additions and 9 deletions
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19
src/opt/opt_context.cpp
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@ -58,8 +58,9 @@ namespace opt {
}
void context::scoped_state::pop() {
m_hard.resize(m_hard_lim.back());
m_asms.resize(m_asms_lim.back());
m_hard.shrink(m_hard_lim.back());
m_asms.shrink(m_asms_lim.back());
m_values.shrink(m_values_lim.back());
unsigned k = m_objectives_term_trail_lim.back();
while (m_objectives_term_trail.size() > k) {
unsigned idx = m_objectives_term_trail.back();
@ -79,6 +80,7 @@ namespace opt {
m_objectives_lim.pop_back();
m_hard_lim.pop_back();
m_asms_lim.pop_back();
m_values_lim.pop_back();
}
void context::scoped_state::add(expr* hard) {
@ -306,13 +308,11 @@ namespace opt {
if (contains_quantifiers()) {
warning_msg("optimization with quantified constraints is not supported");
}
#if 0
if (is_qsat_opt()) {
return run_qsat_opt();
}
#endif
solver& s = get_solver();
s.assert_expr(m_hard_constraints);
for (auto const& [var, value] : m_scoped_state.m_values) {
s.user_propagate_initialize_value(var, value);
}
opt_params optp(m_params);
symbol pri = optp.priority();
@ -697,6 +697,11 @@ namespace opt {
}
}
void context::initialize_value(expr* var, expr* value) {
m_scoped_state.m_values.push_back({expr_ref(var, m), expr_ref(value, m)});
}
/**
* Set the solver to the SAT core.
* It requres: