mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-12 20:18:18 +00:00
Code Activity

fix a lambda bug

Browse source 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2023-09-20 17:02:35 -07:00
parent f9de65a464
commit 20c02f4f45
1 changed files with 23 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

44
src/math/lp/bound_analyzer_on_row.h
View file

@ -281,11 +281,28 @@ private:
// */ // */
// } // }
void limit_j(unsigned bound_j, const mpq& u, bool coeff_before_j_is_pos, bool is_lower_bound, bool strict)
void limit_j(unsigned bound_j, const mpq& u, bool coeff_before_j_is_pos, bool is_lower_bound, bool strict){ {
unsigned row_index = this->m_row_index; unsigned row_index = this->m_row_index;
auto explain = [bound_j, coeff_before_j_is_pos, is_lower_bound, strict, row_index,this]() { auto* lar = &m_bp.lp();
return explain_bound_on_var_on_coeff((B*)&m_bp, bound_j, coeff_before_j_is_pos, is_lower_bound, strict, row_index); auto explain = [bound_j, coeff_before_j_is_pos, is_lower_bound, strict, row_index, lar]() {
TRACE("bound_analyzer", tout << "explain_bound_on_var_on_coeff, bound_j = " << bound_j << ", coeff_before_j_is_pos = " << coeff_before_j_is_pos << ", is_lower_bound = " << is_lower_bound << ", strict = " << strict << ", row_index = " << row_index << "\n";);
int bound_sign = (is_lower_bound ? 1 : -1);
int j_sign = (coeff_before_j_is_pos ? 1 : -1) * bound_sign;
SASSERT(!tv::is_term(bound_j));
u_dependency* ret = nullptr;
for (auto const& r : lar->get_row(row_index)) {
unsigned j = r.var();
if (j == bound_j)
continue;
mpq const& a = r.coeff();
int a_sign = is_pos(a) ? 1 : -1;
int sign = j_sign * a_sign;
u_dependency* witness = sign > 0 ? lar->get_column_upper_bound_witness(j) : lar->get_column_lower_bound_witness(j);
ret = lar->join_deps(ret, witness);
}
return ret;
}; };
m_bp.add_bound(u, bound_j, is_lower_bound, strict, explain); m_bp.add_bound(u, bound_j, is_lower_bound, strict, explain);
} }
@ -320,26 +337,7 @@ private:
break; break;
} }
} }
static u_dependency* explain_bound_on_var_on_coeff(B* bp, unsigned bound_j, bool coeff_before_j_is_pos, bool is_lower_bound, bool strict, unsigned row_index) {
TRACE("bound_analyzer", tout << "explain_bound_on_var_on_coeff, bound_j = " << bound_j << ", coeff_before_j_is_pos = " << coeff_before_j_is_pos << ", is_lower_bound = " << is_lower_bound << ", strict = " << strict << ", row_index = " << row_index << "\n";);
auto& lar = bp->lp();
int bound_sign = (is_lower_bound ? 1 : -1);
int j_sign = (coeff_before_j_is_pos ? 1 : -1) * bound_sign;
SASSERT(!tv::is_term(bound_j));
u_dependency* ret = nullptr;
for (auto const& r : lar.get_row(row_index)) {
unsigned j = r.var();
if (j == bound_j)
continue;
mpq const& a = r.coeff();
int a_sign = is_pos(a) ? 1 : -1;
int sign = j_sign * a_sign;
u_dependency* witness = sign > 0 ? lar.get_column_upper_bound_witness(j) : lar.get_column_lower_bound_witness(j);
ret = lar.join_deps(ret, witness);
}
return ret;
}
}; };