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fingers starting on xor_gaussian.cpp

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-11-10 13:08:31 -08:00
parent 12be80524d
commit 0ad2b54404
1 changed files with 26 additions and 25 deletions
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51
src/sat/smt/xor_gaussian.cpp
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@ -66,33 +66,34 @@ void PackedRow::get_reason(
PackedRow& tmp_col2,
literal prop) {
tmp_col2.set_and(*this, cols_vals);
for (int i = 0; i < size; i++)
if (mp[i]) {
int64_t tmp = mp[i];
unsigned long at;
at = scan_fwd_64b(tmp);
int extra = 0;
while (at != 0) {
unsigned col = extra + at - 1 + i * 64;
SASSERT(operator[](col) == 1);
const unsigned var = col_to_var[col];
if (var == prop.var()) {
tmp_clause.push_back(prop);
std::swap(tmp_clause[0], tmp_clause.back());
}
else {
bool val_bool = tmp_col2[col]; // NSB: double check if z3 use of sign is compatible
tmp_clause.push_back(sat::literal(var, val_bool));
}
extra += at;
if (extra == 64)
break;
tmp >>= at;
at = scan_fwd_64b(tmp);
for (int i = 0; i < size; i++) {
if (!mp[i])
continue;
int64_t tmp = mp[i];
unsigned long at;
at = scan_fwd_64b(tmp);
int extra = 0;
while (at != 0) {
unsigned col = extra + at - 1 + i * 64;
SASSERT(operator[](col) == 1);
const unsigned var = col_to_var[col];
if (var == prop.var()) {
tmp_clause.push_back(prop);
std::swap(tmp_clause[0], tmp_clause.back());
}
else {
bool val_bool = tmp_col2[col]; // NSB: double check if z3 use of sign is compatible
tmp_clause.push_back(sat::literal(var, val_bool));
}
extra += at;
if (extra == 64)
break;
tmp >>= at;
at = scan_fwd_64b(tmp);
}
}
}
gret PackedRow::propGause(