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add stubs for monomial unit propagation

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This commit is contained in:
Nikolaj Bjorner 2023-08-30 17:21:38 -07:00
parent 00593609c5
commit 38b131386d
7 changed files with 84 additions and 10 deletions
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23
src/math/lp/nla_divisions.cpp
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@ -19,19 +19,30 @@ Description:
namespace nla {
void divisions::add_idivision(lpvar q, lpvar x, lpvar y) {
auto& lra = m_core.lra;
if (x == null_lpvar || y == null_lpvar || q == null_lpvar)
return;
if (lp::tv::is_term(x) || lp::tv::is_term(y) || lp::tv::is_term(q))
return;
if (lp::tv::is_term(x))
x = lra.map_term_index_to_column_index(x);
if (lp::tv::is_term(y))
y = lra.map_term_index_to_column_index(y);
if (lp::tv::is_term(q))
q = lra.map_term_index_to_column_index(q);
m_idivisions.push_back({q, x, y});
m_core.trail().push(push_back_vector(m_idivisions));
}
void divisions::add_rdivision(lpvar q, lpvar x, lpvar y) {
auto& lra = m_core.lra;
if (x == null_lpvar || y == null_lpvar || q == null_lpvar)
return;
if (lp::tv::is_term(x) || lp::tv::is_term(y) || lp::tv::is_term(q))
return;
if (lp::tv::is_term(x))
x = lra.map_term_index_to_column_index(x);
if (lp::tv::is_term(y))
y = lra.map_term_index_to_column_index(y);
if (lp::tv::is_term(q))
q = lra.map_term_index_to_column_index(q);
m_rdivisions.push_back({ q, x, y });
m_core.trail().push(push_back_vector(m_rdivisions));
}
@ -52,7 +63,7 @@ namespace nla {
// y2 <= y1 < 0 & x1 <= x2 <= 0 => x1/y1 >= x2/y2
void divisions::check() {
core& c = m_core;
core& c = m_core;
if (c.use_nra_model())
return;
@ -132,7 +143,7 @@ namespace nla {
auto x2val = c.val(x2);
auto y2val = c.val(y2);
auto q2val = c.val(q2);
if (monotonicity(x, xval, y, yval, r, rval, x2, x2val, y2, y2val, q2, q2val))
if (monotonicity(x, xval, y, yval, r, rval, x2, x2val, y2, y2val, q2, q2val))
return;
}
}