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generalize subsumption to non-univariate

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-08-22 10:46:49 -07:00
parent 058c5771b9
commit 8128ae8109
4 changed files with 93 additions and 69 deletions
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8
src/math/dd/dd_pdd.cpp
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@ -1736,6 +1736,14 @@ namespace dd {
return p.val();
}
rational const& pdd::offset() const {
pdd p = *this;
while (!p.is_val())
p = p.lo();
return p.val();
}
pdd pdd::shl(unsigned n) const {
return (*this) * rational::power_of_two(n);
}

1
src/math/dd/dd_pdd.h
View file

@ -407,6 +407,7 @@ namespace dd {
unsigned var() const { return m.var(root); }
rational const& val() const { SASSERT(is_val()); return m.val(root); }
rational const& leading_coefficient() const;
rational const& offset() const;
bool is_val() const { return m.is_val(root); }
bool is_one() const { return m.is_one(root); }
bool is_zero() const { return m.is_zero(root); }