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work on seed_properties

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2025-08-28 16:29:12 -10:00
parent 25ce7ccfd8
commit 7150fdafa6
4 changed files with 191 additions and 102 deletions
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17
src/nlsat/nlsat_explain.cpp
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@ -673,7 +673,7 @@ namespace nlsat {
bool have_zero = false;
for (unsigned i = 0; i < num_factors; i++) {
f = m_factors.get(i);
if (coeffs_are_zeroes_in_factor(f)) {
if (coeffs_are_zeroes_on_sample(f, m_pm, sample(), m_am)) {
have_zero = true;
break;
}
@ -690,20 +690,7 @@ namespace nlsat {
}
return true;
}
bool coeffs_are_zeroes_in_factor(polynomial_ref & s) {
var x = max_var(s);
unsigned n = degree(s, x);
auto c = polynomial_ref(this->m_pm);
for (unsigned j = 0; j <= n; j++) {
c = m_pm.coeff(s, x, j);
if (sign(c, sample(), m_am) != 0)
return false;
}
return true;
}
/**
\brief Add v-psc(p, q, x) into m_todo
*/