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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-07-02 12:52:25 -07:00
parent e3a8522885
commit 7bac714762
2 changed files with 38 additions and 9 deletions
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43
src/math/lp/horner.cpp
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@ -235,9 +235,14 @@ intervals::interval horner::interval_of_expr(const nex& e) {
template <typename T>
interv horner::interval_of_mul(const vector<nla_expr<T>>& es) {
interv a = interval_of_expr(es[0]);
if (m_intervals.is_zero(a)) {
TRACE("nla_cn", tout << "interv = "; m_intervals.display(tout, a); tout << "\n";);
return a;
}
for (unsigned k = 1; k < es.size(); k++) {
interv b = interval_of_expr(es[k]);
if (m_intervals.is_zero(b)) {
TRACE("nla_cn", tout << "interv = "; m_intervals.display(tout, b); tout << "\n";);
return b;
}
interv c;
@ -245,29 +250,49 @@ interv horner::interval_of_mul(const vector<nla_expr<T>>& es) {
m_intervals.mul(a, b, c, deps);
m_intervals.set(a, c);
m_intervals.add_deps(a, b, deps, a);
if (m_intervals.is_zero(a))
return a;
}
TRACE("nla_cn", tout << "interv = "; m_intervals.display(tout, a); tout << "\n";);
return a;
}
template <typename T>
interv horner::interval_of_sum(const vector<nla_expr<T>>& es) {
interv a = interval_of_expr(es[0]);
for (unsigned k = 1; k < es.size(); k++) {
interv b = interval_of_expr(es[k]);
interv c;
m_intervals.add(a, b, c);
m_intervals.set(a, c);
TRACE("nla_cn", tout << "es[0]= " << es[0] << "\n";);
interv a = interval_of_expr(es[0]);
TRACE("nla_cn", tout << "interv = "; m_intervals.display(tout, a); tout << "\n";);
if (m_intervals.is_inf(a)) {
return a;
}
for (unsigned k = 1; k < es.size(); k++) {
TRACE("nla_cn", tout << "es[k]= " << es[k] << "\n";);
interv b = interval_of_expr(es[k]);
TRACE("nla_cn", tout << "interv = "; m_intervals.display(tout, a); tout << "\n";);
if (m_intervals.is_inf(b)) {
return a;
}
interv c;
interval_deps deps;
m_intervals.add(a, b, c, deps);
m_intervals.set(a, c);
m_intervals.add_deps(a, b, deps, a);
TRACE("nla_cn", tout << "interv = "; m_intervals.display(tout, a); tout << "\n";);
if (m_intervals.is_inf(a)) {
return a;
}
}
TRACE("nla_cn", tout << "interv = "; m_intervals.display(tout, a); tout << "\n";);
return a;
}
// sets the dependencies also
void horner::set_var_interval(lpvar v, interv& b) {
m_intervals.set_var_interval_with_deps(v, b);
TRACE("nla_cn", tout << "v = "; print_var(v, tout); tout << "\n";);
}
void horner::check_interval_for_conflict(const intervals::interval&) {
void horner::check_interval_for_conflict(const intervals::interval& i) {
TRACE("nla_cn", tout << "interval = "; m_intervals.display(tout, i); );
SASSERT(false);
}
}