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factor cache pointers are invalid if the table is resized

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-01-26 16:18:18 -08:00
parent d1fcc41c7f
commit 0eaf5a8510
2 changed files with 7 additions and 8 deletions
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8
src/math/dd/dd_pdd.cpp
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@ -890,12 +890,8 @@ namespace dd {
rest = p;
}
}
if (gc_generation != m_gc_generation) {
// Cache was reset while factoring (due to GC),
// which means the old entry has been removed and we need to insert it again.
auto* et = m_factor_cache.insert_if_not_there2({p.root, v, degree});
e = &et->get_data();
}
et = m_factor_cache.insert_if_not_there2({p.root, v, degree});
e = &et->get_data();
e->m_lc = lc.root;
e->m_rest = rest.root;
}