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inequality::rewrite_equiv

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This commit is contained in:
Jakob Rath 2023-02-09 16:33:59 +01:00
parent 06cc15d1cc
commit c60a2b10a5
2 changed files with 57 additions and 0 deletions
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12
src/math/polysat/constraint.h
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@ -226,6 +226,18 @@ namespace polysat {
bool is_strict() const { return m_src.is_negative(); }
signed_constraint as_signed_constraint() const { return m_src; }
operator signed_constraint() const { return m_src; }
/**
* Rewrite to one of six equivalent forms:
*
* i=0 p <= q (unchanged)
* i=1 p <= p - q - 1
* i=2 q - p <= q
* i=3 q - p <= -p - 1
* i=4 -q - 1 <= -p - 1
* i=5 -q - 1 <= p - q - 1
*/
inequality rewrite_equiv(int i) const;
};
class constraint_pp {