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fix nex simplification

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-10-01 11:18:25 -07:00
parent 9f8f6dee9e
commit f07d9a80c5
4 changed files with 24 additions and 10 deletions
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16
src/math/lp/nex_creator.cpp
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@ -464,7 +464,7 @@ void nex_creator::fill_map_with_children(std::map<nex*, rational, nex_lt> & m, p
}
}
if (scalar && scalar->value().is_zero() == false) {
m[scalar] = rational();
m[scalar] = rational(scalar->value());
}
}
@ -590,11 +590,17 @@ nex * nex_creator::mk_div(const nex* a, const nex* b) {
}
nex* nex_creator::simplify(nex* e) {
nex* es;
TRACE("nla_cn_details", tout << *e << std::endl;);
if (e->is_mul())
return simplify_mul(to_mul(e));
if (e->is_sum())
return simplify_sum(to_sum(e));
return e;
es = simplify_mul(to_mul(e));
else if (e->is_sum())
es = simplify_sum(to_sum(e));
else
es = e;
TRACE("nla_cn_details", tout << "simplified = " << *es << std::endl;);
SASSERT(is_simplified(es));
return es;
}
bool nex_creator::is_simplified(const nex *e) const