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updated conflict state

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-02-01 11:47:33 -08:00
parent 486cc632d0
commit c48f14e537
8 changed files with 1085 additions and 1067 deletions
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16
src/math/polysat/saturation.cpp
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@ -423,6 +423,22 @@ namespace polysat {
return false;
if (c.lhs.is_val() || c.rhs.is_val())
return false;
pdd q_l(c.lhs), e_l(c.lhs), q_r(c.rhs), e_r(c.rhs);
bool is_linear = true;
is_linear &= c.lhs.degree(v) <= 1;
is_linear &= c.rhs.degree(v) <= 1;
if (c.lhs.degree(v) == 1) {
c.lhs.factor(v, 1, q_l, e_l);
is_linear &= q_l.is_val();
}
if (c.rhs.degree(v) == 1) {
c.rhs.factor(v, 1, q_r, e_r);
is_linear &= q_r.is_val();
}
if (is_linear)
return false;
if (!c.as_signed_constraint().is_currently_false(s))
return false;
rational l_val, r_val;