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get bounds from interval multiplication

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-06-07 18:08:14 -07:00
parent 3948af630d
commit f0cebd69fc
5 changed files with 129 additions and 84 deletions
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11
src/math/lp/nla_intervals.h
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@ -78,7 +78,7 @@ namespace nla {
};
void add_deps(interval const& a, interval const& b, interval_deps const& deps, interval& i) {
void add_deps(interval const& a, interval const& b, interval_deps const& deps, interval& i) const {
ci_dependency* lo = mk_dependency(a, b, deps.m_lower_deps);
ci_dependency* hi = mk_dependency(a, b, deps.m_upper_deps);
i.m_lower_dep = lo;
@ -119,7 +119,7 @@ namespace nla {
im_config(numeral_manager & m, ci_dependency_manager& d):m_manager(m), m_dep_manager(d) {}
private:
ci_dependency* mk_dependency(interval const& a, interval const& b, bound_deps bd) {
ci_dependency* mk_dependency(interval const& a, interval const& b, bound_deps bd) const {
ci_dependency* dep = nullptr;
if (dep_in_lower1(bd)) {
dep = m_dep_manager.mk_join(dep, a.m_lower_dep);
@ -174,7 +174,10 @@ namespace nla {
bool product_has_upper_bound(int sign, const svector<lpvar>&) const;
lp::impq get_upper_bound_of_monomial(lpvar j) const;
lp::impq get_lower_bound_of_monomial(lpvar j) const;
interval mul(int sign, const svector<lpvar>&) const;
interval mul_signs_with_deps(int sign, const svector<lpvar>&) const;
interval mul(const svector<lpvar>&) const;
interval mul_signs(const svector<lpvar>&) const;
interval mul_signs_with_deps(const svector<lpvar>&) const;
void get_explanation_of_upper_bound_for_monomial(lpvar j, svector<lp::constraint_index>& expl) const;
void get_explanation_of_lower_bound_for_monomial(lpvar j, svector<lp::constraint_index>& expl) const;
};
} // end of namespace nla