mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-28 11:25:51 +00:00
Code Activity

add deps from fixed vars

Browse source 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-01-11 21:05:43 -08:00
parent e17214c1c2
commit 6bc5400c5d
3 changed files with 30 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/math/lp/horner.cpp
View file

@ -71,14 +71,10 @@ bool horner::lemmas_on_expr(cross_nested& cn, nex_sum* e) {
template <typename T>
bool horner::lemmas_on_row(const T& row) {
cross_nested cn(
[this](const nex* n) { return m_intervals->check_nex(n, nullptr); },
[this](unsigned j) { return c().var_is_fixed(j); },
[this]() { return c().random(); }, m_nex_creator);
SASSERT (row_is_interesting(row));
c().clear_and_resize_active_var_set();
create_sum_from_row(row, cn.get_nex_creator(), m_row_sum);
u_dependency* dep = nullptr;
create_sum_from_row(row, m_nex_creator, m_row_sum, dep);
c().set_active_vars_weights(m_nex_creator); // without this call the comparisons will be incorrect
nex* e = m_nex_creator.simplify(m_row_sum.mk());
TRACE("nla_horner", tout << "e = " << * e << "\n";);
@ -87,6 +83,10 @@ bool horner::lemmas_on_row(const T& row) {
if (!e->is_sum())
return false;
cross_nested cn(
[this, dep](const nex* n) { return m_intervals->check_nex(n, dep); },
[this](unsigned j) { return c().var_is_fixed(j); },
[this]() { return c().random(); }, m_nex_creator);
return lemmas_on_expr(cn, to_sum(e));
}