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fix arith errors add_row for nex grobner

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-12-30 12:24:06 -08:00
parent c5187902ad
commit 361964f173
2 changed files with 9 additions and 5 deletions
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4
src/math/lp/nla_grobner.cpp
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@ -726,6 +726,10 @@ std::ostream& grobner_core::display_dependency(std::ostream& out, u_dependency*
#ifdef Z3DEBUG
bool grobner_core::test_find_b(const nex* ab, const nex_mul* b) {
if (ab->is_var()) {
return b->size() == 0 || (b->get_degree() == 1 && b->get_child_exp(0)->to_var().var() ==
ab->to_var().var());
}
nex_mul& ab_clone = m_nex_creator.clone(ab)->to_mul();
nex_mul * a= divide_ignore_coeffs_perform(&ab_clone, *b);
ab_clone.m_coeff = rational(1);