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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2025-10-17 14:52:53 +02:00
parent d6908a3d4b
commit af2082a1aa
1 changed files with 5 additions and 4 deletions
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9
src/model/finite_set_value_factory.cpp
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@ -27,6 +27,9 @@ expr * finite_set_value_factory::get_some_value(sort * s) {
return u.mk_empty(s);
}
/**
* create sets {}, {a}, {b}, {a,b}, {c}, {a,c}, {b,c}, {a,b,c}, {d}, ...
*/
expr * finite_set_value_factory::get_fresh_value(sort * s) {
sort* elem_sort = nullptr;
VERIFY(u.is_finite_set(s, elem_sort));
@ -50,7 +53,6 @@ expr * finite_set_value_factory::get_fresh_value(sort * s) {
auto e = m_model.get_fresh_value(elem_sort);
if (!e)
return nullptr;
register_value(e);
auto r = u.mk_singleton(e);
register_value(r);
return r;
@ -59,9 +61,8 @@ expr * finite_set_value_factory::get_fresh_value(sort * s) {
// Case 3: Find greatest power of 2 N < values.size() and create union
// Find the greatest N that is a power of 2 and N < values.size()
unsigned N = 1;
while (N * 2 < values.size()) {
N *= 2;
}
while (N * 2 < values.size())
N *= 2;
auto r = u.mk_union(values.get(values.size() - N), values.get(N));
register_value(r);