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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-05-13 17:23:55 -07:00
parent cf8b3a0788
commit 49a903c875
3 changed files with 16 additions and 5 deletions
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9
src/math/polysat/fixplex_def.h
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@ -157,8 +157,7 @@ namespace polysat {
m_var_eqs.reset();
var_t var = row2base(r);
m_vars[var].m_is_base = false;
m_vars[var].lo = 0;
m_vars[var].hi = 0;
m_vars[var].set_free();
m_rows[r.id()].m_base = null_var;
M.del(r);
SASSERT(M.col_begin(var) == M.col_end(var));
@ -248,8 +247,9 @@ namespace polysat {
lbool fixplex<Ext>::make_var_feasible(var_t x) {
if (in_bounds(x))
return l_true;
auto val = value(x);
numeral new_value = (lo(x) - val < val - hi(x)) ? lo(x) : hi(x) - 1;
if (m_vars[x].is_empty())
return l_false;
numeral new_value = m_vars[x].closest_value(value(x));
numeral b;
var_t y = select_pivot_core(x, new_value, b);
@ -418,7 +418,6 @@ namespace polysat {
return value - hi(v) - 1;
}
/**
* The the bounds of variable v.
* If the current value of v, value(v), is in bounds, no further updates are made.