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relax out of range restrictions to handle large intervals

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This commit is contained in:
Nikolaj Bjorner 2025-01-26 11:24:26 -08:00
parent 4f2272dbb2
commit 55fc57b5c7
2 changed files with 89 additions and 18 deletions
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22
src/ast/sls/sls_arith_base.h
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@ -127,20 +127,27 @@ namespace sls {
num_t const& best_value() const { return m_best_value; }
void set_best_value(num_t const& v) { m_best_value = v; }
bool is_big_num() const;
bool in_range(num_t const& n) {
if (-m_range < n && n < m_range)
return true;
bool result = false;
#if 0
if (m_lo && m_lo->value > n)
return false;
if (m_hi && m_hi->value < n)
return false;
#endif
if (m_lo)
result = n < m_lo->value + m_range;
if (!result && m_hi)
result = n > m_hi->value - m_range;
#if 0
if (!result)
out_of_range();
else
++m_num_in_range;
#endif
if (!result && m_lo && m_hi)
result = m_hi->value - m_lo->value > 2 * m_range;
if (!result && is_big_num() && !m_lo && !m_hi)
result = true;
return result;
}
unsigned m_tabu_pos = 0, m_tabu_neg = 0;
@ -166,6 +173,8 @@ namespace sls {
m_num_out_of_range = 0;
m_num_in_range = 0;
}
std::ostream& display_range(std::ostream& out) const;
};
struct mul_def {
@ -232,6 +241,7 @@ namespace sls {
bool repair_mod(op_def const& od);
bool repair_idiv(op_def const& od);
bool repair_div(op_def const& od);
bool repair_div_idiv(op_def const& od, num_t const& val, num_t const& v1, num_t const& v2);
bool repair_rem(op_def const& od);
bool repair_power(op_def const& od);
bool repair_abs(op_def const& od);