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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2024-02-28 17:09:41 -08:00
parent 803f0f0c65
commit dfd5c27fec
6 changed files with 48 additions and 26 deletions
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20
src/ast/sls/sls_valuation.cpp
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@ -95,14 +95,14 @@ namespace bv {
mask = ~(digit_t)0;
}
void sls_valuation::commit_eval() {
DEBUG_CODE(
for (unsigned i = 0; i < nw; ++i)
VERIFY(0 == (fixed[i] & (m_bits[i] ^ eval[i])));
);
bool sls_valuation::commit_eval() {
for (unsigned i = 0; i < nw; ++i)
if (0 != (fixed[i] & (m_bits[i] ^ eval[i])))
return false;
for (unsigned i = 0; i < nw; ++i)
m_bits[i] = eval[i];
SASSERT(well_formed());
return true;
}
bool sls_valuation::in_range(bvect const& bits) const {
@ -446,6 +446,9 @@ namespace bv {
if (h == l)
return;
//verbose_stream() << "[" << l << ", " << h << "[\n";
//verbose_stream() << *this << "\n";
SASSERT(is_zero(fixed)); // ranges can only be added before fixed bits are set.
if (m_lo == m_hi) {
@ -473,10 +476,13 @@ namespace bv {
set_value(m_hi, h);
}
}
SASSERT(!has_overflow(m_lo));
SASSERT(!has_overflow(m_hi));
if (!in_range(eval))
set(eval, m_lo);
if (!in_range(m_bits))
set(m_bits, m_lo);
SASSERT(well_formed());
}