void nonlinear_constraint::build_maps() const {
std::thread::id const tid = std::this_thread::get_id();
assert(m_numctr_map.find(tid) == m_numctr_map.cend());
assert(m_var_array_map.find(tid) == m_var_array_map.cend());
// Build var_array_map
map<string, ibex::ExprSymbol const *> var_map = build_var_map(m_domain_vars);
ibex::Array<ibex::ExprSymbol const> & var_array = m_var_array_map[tid];
var_array.resize(var_map.size());
int i = 0;
for (auto const item : var_map) {
var_array.set_ref(i++, *(item.second));
}
// The use of unique_ptr is to free the returned exprctr* from translate_enode_to_exprctr
unique_ptr<ibex::ExprCtr const> exprctr(
translate_enode_to_exprctr(var_map, get_enode(), m_polarity, m_subst));
m_numctr_map[tid].reset(new ibex::NumConstraint(var_array, *exprctr));
}
// ====================================================
// Nonlinear constraint
// ====================================================
nonlinear_constraint::nonlinear_constraint(Enode * const e,
unordered_set<Enode*> const & var_set,
lbool const p, unordered_map<Enode*, ibex::Interval> const & subst)
: constraint(constraint_type::Nonlinear, e), m_is_neq(p == l_False && e->isEq()),
m_numctr(nullptr), m_var_array(var_set.size()) {
// Build var_map and var_array
// Need to pass a fresh copy of var_array everytime it builds NumConstraint
auto var_map = build_var_map(var_set);
m_var_array.resize(var_map.size());
unsigned i = 0;
for (auto const item : var_map) {
m_var_array.set_ref(i++, item.second);
}
unique_ptr<ibex::ExprCtr const> exprctr(translate_enode_to_exprctr(var_map, e, p, subst));
m_numctr.reset(new ibex::NumConstraint(m_var_array, *exprctr));
DREAL_LOG_INFO << "nonlinear_constraint: "<< *this;
}