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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-09-11 16:55:49 +02:00
parent d514464e30
commit f8a3857adb
7 changed files with 61 additions and 40 deletions
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8
src/math/polysat/ule_constraint.cpp
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@ -86,7 +86,7 @@ namespace polysat {
// TODO: other cheap constraints possible?
}
bool ule_constraint::is_always_false(bool is_positive, pdd const& lhs, pdd const& rhs) {
bool ule_constraint::is_always_false(bool is_positive, pdd const& lhs, pdd const& rhs) const {
// TODO: other conditions (e.g. when forbidden interval would be full)
if (is_positive)
return lhs.is_val() && rhs.is_val() && lhs.val() > rhs.val();
@ -97,17 +97,17 @@ namespace polysat {
}
}
bool ule_constraint::is_always_false(bool is_positive) {
bool ule_constraint::is_always_false(bool is_positive) const {
return is_always_false(is_positive, lhs(), rhs());
}
bool ule_constraint::is_currently_false(solver& s, bool is_positive) {
bool ule_constraint::is_currently_false(solver& s, bool is_positive) const {
auto p = lhs().subst_val(s.assignment());
auto q = rhs().subst_val(s.assignment());
return is_always_false(is_positive, p, q);
}
bool ule_constraint::is_currently_true(solver& s, bool is_positive) {
bool ule_constraint::is_currently_true(solver& s, bool is_positive) const {
auto p = lhs().subst_val(s.assignment());
auto q = rhs().subst_val(s.assignment());
if (is_positive) {