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patch crash for bench0

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-01-21 17:58:30 +01:00
parent 3c940b5125
commit 82798863ba
1 changed files with 6 additions and 1 deletions
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7
src/math/polysat/explain.cpp
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@ -164,6 +164,8 @@ namespace polysat {
LOG("try-reduce is false " << c2.is_currently_false(s));
if (!c2.is_currently_false(s))
continue;
if (c2.bvalue(s) == l_false)
return false;
if (!c2->has_bvar() || l_undef == c2.bvalue(s)) {
vector<signed_constraint> premises;
premises.push_back(c);
@ -174,10 +176,13 @@ namespace polysat {
core.reset();
LOG_H3("Polynomial superposition " << eq << " " << c << " reduced to " << c2);
if (c2.bvalue(s) == l_false) {
UNREACHABLE();
// TODO this loops or crashes depending on whether we
// return true or false.
core.insert(eq);
core.insert(c);
core.insert(~c2);
return false;
return true;
}
core.set(c2);
return true;