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some simplifications in cheap eqs

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-06-08 21:16:23 -07:00
parent 4de38d09e2
commit dd30b5e3af
5 changed files with 40 additions and 22 deletions
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13
src/smt/theory_lra.cpp
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@ -1592,6 +1592,19 @@ public:
void reset_variable_values() {
m_variable_values.clear();
}
bool congruent_or_irrelevant(lpvar k, lpvar j) {
theory_var kv = lp().local_to_external(k);
if (kv == null_theory_var)
return true;
theory_var jv = lp().local_to_external(j);
if (jv == null_theory_var)
return true;
enode * n0 = get_enode(kv);
enode * n1 = get_enode(jv);
return n0->get_root() == n1->get_root();
}
void random_update() {
if (m_nla)