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adjust solve_for to handle rationals

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This commit is contained in:
Nikolaj Bjorner 2025-02-17 13:59:23 -08:00
parent 528efbb535
commit f977b48161
2 changed files with 22 additions and 16 deletions
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5
src/math/lp/lar_solver.cpp
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@ -684,6 +684,7 @@ namespace lp {
return;
tabu.insert(j);
IF_VERBOSE(10, verbose_stream() << "solve for " << j << " base " << is_base(j) << " " << column_is_fixed(j) << "\n");
TRACE("arith", tout << "solve for " << j << " base " << is_base(j) << " " << column_is_fixed(j) << "\n");
if (column_is_fixed(j))
return;
@ -711,7 +712,6 @@ namespace lp {
lp::impq lo, hi;
bool lo_valid = true, hi_valid = true;
for (auto const& v : t) {
if (v.coeff().is_pos()) {
if (lo_valid && column_has_lower_bound(v.j()))
lo += column_lower_bound(v.j()) * v.coeff();
@ -756,7 +756,8 @@ namespace lp {
update_column_type_and_bound(j, hi.y == 0 ? lconstraint_kind::LE : lconstraint_kind::LT, hi.x, dep);
}
if (!column_is_fixed(j))
TRACE("arith", print_term(t, tout << "j" << j << " := ") << "\n");
if (!column_is_fixed(j))
sols.push_back({j, t});
}