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fix #6851

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2023-08-13 14:49:25 -07:00
parent 6366f8f6b2
commit 33c35b0c31
3 changed files with 9 additions and 10 deletions
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11
src/math/lp/factorization.h
View file

@ -30,13 +30,12 @@ struct factorization_factory;
enum class factor_type { VAR, MON };
class factor {
lpvar m_var{ UINT_MAX };
factor_type m_type{ factor_type::VAR };
bool m_sign{ false };
lpvar m_var = UINT_MAX;
factor_type m_type = factor_type::VAR;
bool m_sign = false;
public:
factor(): factor(false) {}
explicit factor(lpvar var): m_var(var), m_type(factor_type::VAR), m_sign(false) {}
explicit factor(lpvar v, factor_type t) : m_var(v), m_type(t), m_sign(false) {}
factor() { }
explicit factor(lpvar v, factor_type t) : m_var(v), m_type(t) {}
unsigned var() const { return m_var; }
factor_type type() const { return m_type; }
void set(lpvar v, factor_type t) { m_var = v; m_type = t; }

4
src/math/lp/nla_order_lemmas.cpp
View file

@ -116,7 +116,7 @@ void order::order_lemma_on_factor_binomial_rm(const monic& ac, bool k, const mon
tout << "bd=" << pp_mon_with_vars(_(), bd) << "\n";
);
factor d(_().m_evars.find(ac.vars()[k]).var(), factor_type::VAR);
factor b(false);
factor b;
if (c().divide(bd, d, b)) {
order_lemma_on_binomial_ac_bd(ac, k, bd, b, d.var());
}
@ -192,7 +192,7 @@ bool order::order_lemma_on_ac_and_bc(const monic& rm_ac,
tout << "rm_bd = " << pp_mon_with_vars(_(), rm_bd) << "\n";
tout << "ac_f[k] = ";
c().print_factor_with_vars(ac_f[k], tout););
factor b(false);
factor b;
return
c().divide(rm_bd, ac_f[k], b) &&
order_lemma_on_ac_and_bc_and_factors(rm_ac, ac_f[!k], ac_f[k], rm_bd, b);