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add trail to avoid stale references in expr2var

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This commit is contained in:
Nikolaj Bjorner 2023-01-24 04:15:52 -08:00
parent 3f1b7866ca
commit 15d853dc04
2 changed files with 7 additions and 0 deletions
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4
src/ast/simplifiers/bound_simplifier.cpp
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@ -208,6 +208,8 @@ void bound_simplifier::tighten_bound(dependent_expr const& de) {
assert_upper(x, n - k, true);
}
// x != k, k <= x -> k < x
if (m.is_not(f, f) && m.is_eq(f, x, y)) {
if (a.is_numeral(x))
@ -222,6 +224,7 @@ void bound_simplifier::tighten_bound(dependent_expr const& de) {
assert_upper(x, n, true);
}
}
}
void bound_simplifier::assert_upper(expr* x, rational const& n, bool strict) {
@ -449,6 +452,7 @@ void bound_simplifier::reset() {
bp.reset();
m_var2expr.reset();
m_expr2var.reset();
m_trail.reset();
}
#if 0