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fix #425 and report from Patrick Trentin of same bug in preprocessing soft constraints that are simplified to true/false

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-02-04 22:35:02 +00:00
parent 768bb84798
commit 2a65503235
3 changed files with 7 additions and 4 deletions
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7
src/opt/opt_context.cpp
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@ -883,11 +883,11 @@ namespace opt {
bool neg;
if (is_maxsat(fml, terms, weights, offset, neg, id, index)) {
objective& obj = m_objectives[index];
if (obj.m_type != O_MAXSMT) {
// change from maximize/minimize.
obj.m_id = id;
obj.m_type = O_MAXSMT;
obj.m_weights.append(weights);
SASSERT(!m_maxsmts.contains(id));
add_maxsmt(id);
}
@ -895,10 +895,13 @@ namespace opt {
SASSERT(obj.m_id == id);
obj.m_terms.reset();
obj.m_terms.append(terms);
obj.m_weights.reset();
obj.m_weights.append(weights);
obj.m_adjust_value.set_offset(offset);
obj.m_adjust_value.set_negate(neg);
m_maxsmts.find(id)->set_adjust_value(obj.m_adjust_value);
TRACE("opt", tout << "maxsat: " << id << " offset:" << offset << "\n";);
TRACE("opt", tout << "maxsat: " << id << " offset:" << offset << "\n";
tout << terms << "\n";);
}
else if (is_maximize(fml, tr, orig_term, index)) {
purify(tr);