mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-29 20:05:51 +00:00
Code Activity

user solver (#4709)

Browse source 
* user solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-09-24 04:55:34 -07:00 • committed by GitHub
parent 7c2bdfe3fb
commit 43db7df2b5
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
19 changed files with 420 additions and 41 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/sat/smt/bv_solver.cpp
View file

@ -62,9 +62,14 @@ namespace bv {
void solver::fixed_var_eh(theory_var v1) {
numeral val1, val2;
VERIFY(get_fixed_value(v1, val1));
euf::enode* n1 = var2enode(v1);
unsigned sz = m_bits[v1].size();
value_sort_pair key(val1, sz);
theory_var v2;
if (ctx.watches_fixed(n1)) {
expr_ref value(bv.mk_numeral(val1, sz), m);
ctx.assign_fixed(n1, value, m_bits[v1]);
}
bool is_current =
m_fixed_var_table.find(key, v2) &&
v2 < static_cast<int>(get_num_vars()) &&
@ -74,12 +79,12 @@ namespace bv {
if (!is_current)
m_fixed_var_table.insert(key, v1);
else if (var2enode(v1)->get_root() != var2enode(v2)->get_root()) {
else if (n1->get_root() != var2enode(v2)->get_root()) {
SASSERT(get_bv_size(v1) == get_bv_size(v2));
TRACE("bv", tout << "detected equality: v" << v1 << " = v" << v2 << "\n" << pp(v1) << pp(v2););
m_stats.m_num_bit2eq++;
add_fixed_eq(v1, v2);
ctx.propagate(var2enode(v1), var2enode(v2), mk_bit2eq_justification(v1, v2));
ctx.propagate(n1, var2enode(v2), mk_bit2eq_justification(v1, v2));
}
}