mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-23 17:15:31 +00:00
Code Activity

fix regression with mainintaing signs for monotonicity lemmas

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-16 11:16:39 -07:00
parent cd833e892f
commit d352c61e01
2 changed files with 6 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/math/lp/nla_monotone_lemmas.cpp
View file

@ -53,6 +53,8 @@ void monotone::monotonicity_lemma_gt(const monic& m) {
for (lpvar j : m.vars()) {
auto v = c().val(j);
lemma |= ineq(j, v.is_neg() ? llc::LT : llc::GT, v);
if (v.is_neg())
lemma |= ineq(j, llc::GT, 0);
product *= v;
}
lemma |= ineq(m.var(), product.is_neg() ? llc::GE : llc::LE, product);