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refact lws

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2025-08-15 19:47:57 -07:00
parent 2da6b2ff35
commit d15718346c
3 changed files with 132 additions and 20 deletions
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11
src/nlsat/nlsat_explain.cpp
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@ -965,7 +965,7 @@ namespace nlsat {
scoped_anum lower(m_am);
scoped_anum upper(m_am);
anum const & y_val = sample().value(y);
TRACE(nlsat_explain, tout << "adding literals for "; display_var(tout, m_solver, y); tout << " -> ";
TRACE(nlsat_explain, tout << "adding literals for y:" << y << " "; display_var(tout, m_solver, y); tout << " -> ";
m_am.display_decimal(tout, y_val); tout << "\n";);
polynomial_ref p_lower(m_pm);
unsigned i_lower = UINT_MAX;
@ -975,8 +975,11 @@ namespace nlsat {
unsigned sz = ps.size();
for (unsigned k = 0; k < sz; k++) {
p = ps.get(k);
if (max_var(p) != y)
if (max_var(p) != y) {
TRACE(nlsat_explain, tout << "continue\n";);
continue;
}
TRACE(nlsat_explain, tout << "looking for roots\n";);
roots.reset();
// Variable y is assigned in asgnm. We must temporarily unassign it.
// Otherwise, the isolate_roots procedure will assume p is a constant polynomial.
@ -1227,8 +1230,8 @@ namespace nlsat {
m_todo.reset();
break;
}
TRACE(nlsat_explain, tout << "project loop, processing var "; display_var(tout, m_solver, x); tout << "\npolynomials\n";
display(tout, m_solver, ps); tout << "\n";);
TRACE(nlsat_explain, tout << "project loop, processing var "; display_var(tout, m_solver, x); tout << "\npolynomials\n";
display(tout, m_solver, ps); tout << "\n";);
add_lcs(ps, x);
psc_discriminant(ps, x);
psc_resultant(ps, x);