mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-27 02:45:51 +00:00
Code Activity

get rid of int*, use lambda scoping

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2023-09-20 15:18:37 -07:00
parent 7a74b099ba
commit 615aad7779
5 changed files with 55 additions and 56 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/math/lp/bound_analyzer_on_row.h
View file

@ -284,7 +284,9 @@ private:
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;
auto explain = [bound_j, coeff_before_j_is_pos, is_lower_bound, strict, row_index](int * s) { return explain_bound_on_var_on_coeff((B*)s, 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,this]() {
return explain_bound_on_var_on_coeff((B*)&m_bp, bound_j, coeff_before_j_is_pos, is_lower_bound, strict, row_index);
};
m_bp.add_bound(u, bound_j, is_lower_bound, strict, explain);
}

12
src/math/lp/implied_bound.h
View file

@ -31,13 +31,13 @@ class implied_bound {
// by lar_solver::add_term()
unsigned m_j;
bool m_is_lower_bound;
bool m_strict;
bool m_strict;
private:
std::function<u_dependency*(int *)> m_explain_bound = nullptr;
std::function<u_dependency*()> m_explain_bound = nullptr;
public:
// s is expected to be the pointer to lp_bound_propagator.
u_dependency* explain_implied(int * s) const { return m_explain_bound(s); }
void set_explain(std::function<u_dependency*(int *)> f) { m_explain_bound = f; }
u_dependency* explain_implied() const { return m_explain_bound(); }
void set_explain(std::function<u_dependency*()> f) { m_explain_bound = f; }
lconstraint_kind kind() const {
lconstraint_kind k = m_is_lower_bound? GE : LE;
if (m_strict)
@ -48,8 +48,8 @@ class implied_bound {
implied_bound(const mpq & a,
unsigned j,
bool is_lower_bound,
bool is_strict,
std::function<u_dependency*(int *)> get_dep):
bool is_strict,
std::function<u_dependency*()> get_dep):
m_bound(a),
m_j(j),
m_is_lower_bound(is_lower_bound),

2
src/math/lp/lar_solver.h
View file

@ -311,7 +311,7 @@ class lar_solver : public column_namer {
template <typename T>
void explain_implied_bound(const implied_bound& ib, lp_bound_propagator<T>& bp) {
u_dependency* dep = ib.explain_implied((int*)&bp);
u_dependency* dep = ib.explain_implied();
for (auto ci : flatten(dep))
bp.consume(mpq(1), ci); // TODO: flatten should provide the coefficients
/*

91
src/math/lp/lp_bound_propagator.h
View file

@ -140,22 +140,24 @@ public:
}
void add_bounds_for_zero_var(lpvar monic_var, lpvar zero_var) {
auto lambda = [zero_var](int* s) {
return ((lp_bound_propagator*)s)->lp().get_bound_constraint_witnesses_for_column(zero_var);
auto& lps = lp();
auto lambda = [zero_var,&lps]() {
return lps.get_bound_constraint_witnesses_for_column(zero_var);
};
TRACE("add_bound", lp().print_column_info(zero_var, tout) << std::endl;);
add_lower_bound_monic(monic_var, mpq(0), false, lambda);
add_upper_bound_monic(monic_var, mpq(0), false, lambda);
}
void add_lower_bound_monic(lpvar j, const mpq& v, bool is_strict, std::function<u_dependency* (int*)> explain_dep) {
void add_lower_bound_monic(lpvar j, const mpq& v, bool is_strict, std::function<u_dependency*()> explain_dep) {
TRACE("add_bound", lp().print_column_info(j, tout) << std::endl;);
j = lp().column_to_reported_index(j);
unsigned k;
if (!m_improved_lower_bounds.find(j, k)) {
m_improved_lower_bounds.insert(j,static_cast<unsigned>(m_ibounds.size()));
m_ibounds.push_back(implied_bound(v, j, true, is_strict, explain_dep));
} else {
}
else {
auto& found_bound = m_ibounds[k];
if (v > found_bound.m_bound || (v == found_bound.m_bound && !found_bound.m_strict && is_strict)) {
found_bound = implied_bound(v, j, true, is_strict, explain_dep);
@ -164,13 +166,14 @@ public:
}
}
void add_upper_bound_monic(lpvar j, const mpq& bound_val, bool is_strict, std::function <u_dependency* (int*)> explain_bound) {
void add_upper_bound_monic(lpvar j, const mpq& bound_val, bool is_strict, std::function <u_dependency* ()> explain_bound) {
j = lp().column_to_reported_index(j);
unsigned k;
if (!m_improved_upper_bounds.find(j, k)) {
m_improved_upper_bounds.insert(j, static_cast<unsigned>(m_ibounds.size()));
m_ibounds.push_back(implied_bound(bound_val, j, false, is_strict, explain_bound));
} else {
}
else {
auto& found_bound = m_ibounds[k];
if (bound_val > found_bound.m_bound || (bound_val == found_bound.m_bound && !found_bound.m_strict && is_strict)) {
found_bound = implied_bound(bound_val, j, false, is_strict, explain_bound);
@ -204,18 +207,16 @@ public:
void propagate_monic_with_non_fixed(lpvar monic_var, const svector<lpvar>& vars, lpvar non_fixed, const rational& k) {
lp::impq bound_value;
bool is_strict;
auto& lps = lp();
if (lower_bound_is_available(non_fixed)) {
bound_value = lp().column_lower_bound(non_fixed);
is_strict = !bound_value.y.is_zero();
auto lambda = [vars, non_fixed](int* s) {
auto& l = ((lp_bound_propagator*)s)->lp();
u_dependency* dep = l.get_column_lower_bound_witness(non_fixed);
for (auto v : vars) {
if (v != non_fixed) {
dep = l.join_deps(dep, l.get_bound_constraint_witnesses_for_column(v));
}
}
auto lambda = [vars, non_fixed,&lps]() {
u_dependency* dep = lps.get_column_lower_bound_witness(non_fixed);
for (auto v : vars)
if (v != non_fixed)
dep = lps.join_deps(dep, lps.get_bound_constraint_witnesses_for_column(v));
return dep;
};
if (k.is_pos())
@ -227,14 +228,11 @@ public:
if (upper_bound_is_available(non_fixed)) {
bound_value = lp().column_upper_bound(non_fixed);
is_strict = !bound_value.y.is_zero();
auto lambda = [vars, non_fixed](int* s) {
auto& l = ((lp_bound_propagator*)s)->lp();
u_dependency* dep = l.get_column_upper_bound_witness(non_fixed);
for (auto v : vars) {
if (v != non_fixed) {
dep = l.join_deps(dep, l.get_bound_constraint_witnesses_for_column(v));
}
}
auto lambda = [vars, non_fixed,&lps]() {
u_dependency* dep = lps.get_column_upper_bound_witness(non_fixed);
for (auto v : vars)
if (v != non_fixed)
dep = lps.join_deps(dep, lps.get_bound_constraint_witnesses_for_column(v));
return dep;
};
if (k.is_neg())
@ -244,33 +242,31 @@ public:
}
if (lower_bound_is_available(monic_var)) {
auto lambda = [vars, monic_var, non_fixed](int* s) {
auto& l = ((lp_bound_propagator*)s)->lp();
u_dependency* dep = l.get_column_lower_bound_witness(monic_var);
for (auto v : vars) {
if (v != non_fixed) {
dep = l.join_deps(dep, l.get_bound_constraint_witnesses_for_column(v));
}
}
return dep;
};
bound_value = lp().column_lower_bound(monic_var);
is_strict = !bound_value.y.is_zero();
if (k.is_pos())
add_lower_bound_monic(non_fixed, bound_value.x / k, is_strict, lambda);
else
add_upper_bound_monic(non_fixed, bound_value.x / k, is_strict, lambda);
auto lambda = [vars, monic_var, non_fixed,&lps]() {
u_dependency* dep = lps.get_column_lower_bound_witness(monic_var);
for (auto v : vars) {
if (v != non_fixed) {
dep = lps.join_deps(dep, lps.get_bound_constraint_witnesses_for_column(v));
}
}
return dep;
};
bound_value = lp().column_lower_bound(monic_var);
is_strict = !bound_value.y.is_zero();
if (k.is_pos())
add_lower_bound_monic(non_fixed, bound_value.x / k, is_strict, lambda);
else
add_upper_bound_monic(non_fixed, bound_value.x / k, is_strict, lambda);
}
if (upper_bound_is_available(monic_var)) {
bound_value = lp().column_upper_bound(monic_var);
is_strict = !bound_value.y.is_zero();
auto lambda = [vars, monic_var, non_fixed](int* s) {
auto& l = ((lp_bound_propagator*)s)->lp();
u_dependency* dep = l.get_column_upper_bound_witness(monic_var);
auto lambda = [vars, monic_var, non_fixed,&lps]() {
u_dependency* dep = lps.get_column_upper_bound_witness(monic_var);
for (auto v : vars) {
if (v != non_fixed) {
dep = l.join_deps(dep, l.get_bound_constraint_witnesses_for_column(v));
dep = lps.join_deps(dep, lps.get_bound_constraint_witnesses_for_column(v));
}
}
return dep;
@ -283,9 +279,10 @@ public:
}
void propagate_monic_with_all_fixed(lpvar monic_var, const svector<lpvar>& vars, const rational& k) {
auto lambda = [vars](int* s) { return ((lp_bound_propagator*)s)->lp().get_bound_constraint_witnesses_for_columns(vars); };
add_lower_bound_monic(monic_var, k, false, lambda);
add_upper_bound_monic(monic_var, k, false, lambda);
auto& lps = lp();
auto lambda = [vars,&lps]() { return lps.get_bound_constraint_witnesses_for_columns(vars); };
add_lower_bound_monic(monic_var, k, false, lambda);
add_upper_bound_monic(monic_var, k, false, lambda);
}
column_type get_column_type(unsigned j) const {
@ -313,7 +310,7 @@ public:
return (*m_column_types)[j] == column_type::fixed && get_lower_bound(j).y.is_zero();
}
void add_bound(mpq const& v, unsigned j, bool is_low, bool strict, std::function<u_dependency* (int*)> explain_bound) {
void add_bound(mpq const& v, unsigned j, bool is_low, bool strict, std::function<u_dependency* ()> explain_bound) {
j = lp().column_to_reported_index(j);
lconstraint_kind kind = is_low ? GE : LE;

2
src/sat/smt/arith_solver.cpp
View file

@ -253,7 +253,7 @@ namespace arith {
first = false;
reset_evidence();
m_explanation.clear();
be.explain_implied((int*)&m_bp);
be.explain_implied();
}
CTRACE("arith", m_unassigned_bounds[v] == 0, tout << "missed bound\n";);
updt_unassigned_bounds(v, -1);