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updates to sls

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2024-03-30 12:59:02 -07:00
parent 111fcb9366
commit 51f1e2655c
13 changed files with 234 additions and 105 deletions
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8
src/ast/sls/bv_sls_fixed.cpp
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@ -108,6 +108,13 @@ namespace bv {
else if (bv.is_numeral(t, a))
init_range(s, -a, nullptr, rational(0), false);
}
else if (sign && m.is_eq(e, s, t)) {
if (bv.is_numeral(s, a))
// 1 <= t - a
init_range(nullptr, rational(1), t, -a, false);
else if (bv.is_numeral(t, a))
init_range(nullptr, rational(1), s, -a, false);
}
else if (bv.is_bit2bool(e, s, idx)) {
auto& val = wval(s);
val.try_set_bit(idx, !sign);
@ -157,7 +164,6 @@ namespace bv {
else
v.add_range(-b, -a);
}
}
void sls_fixed::get_offset(expr* e, expr*& x, rational& offset) {