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fix interval calculations to accomodate changes in nex expressions

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Signed-off-by: Lev Nachmanson <levnach@microsoft.com>
This commit is contained in:
Lev Nachmanson 2019-10-14 17:24:52 -07:00 • committed by Lev Nachmanson
parent dc39ef761c
commit fbdc28f2ae
4 changed files with 82 additions and 60 deletions
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2
src/math/lp/nex_creator.cpp
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@ -266,6 +266,8 @@ bool nex_creator::less_than_on_sum_sum(const nex_sum* a, const nex_sum* b) const
bool nex_creator::lt(const nex* a, const nex* b) const {
TRACE("nla_cn_details_", tout << *a << " ? " << *b << "\n";);
if (a == b)
return false;
bool ret;
switch (a->type()) {
case expr_type::VAR: