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fix #4230

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-09 18:49:00 -07:00
parent f044071f5e
commit 4890c3ce31
7 changed files with 61 additions and 33 deletions
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10
src/math/lp/nla_order_lemmas.cpp
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@ -92,7 +92,7 @@ void order::order_lemma_on_binomial(const monic& ac) {
void order::order_lemma_on_binomial_sign(const monic& xy, lpvar x, lpvar y, int sign) {
SASSERT(!_().mon_has_zero(xy.vars()));
int sy = rat_sign(val(y));
new_lemma lemma(c());
new_lemma lemma(c(), __FUNCTION__);
mk_ineq(y, sy == 1 ? llc::LE : llc::GE); // negate sy
mk_ineq(x, sy*sign == 1 ? llc::GT : llc::LT , val(x));
mk_ineq(xy.var(), - val(x), y, sign == 1 ? llc::LE : llc::GE);
@ -174,7 +174,7 @@ void order::generate_mon_ol(const monic& ac,
SASSERT(ab_cmp != llc::LT || (var_val(ac) >= var_val(bd) && val(a)*c_sign < val(b)*d_sign));
SASSERT(ab_cmp != llc::GT || (var_val(ac) <= var_val(bd) && val(a)*c_sign > val(b)*d_sign));
new_lemma lemma(_());
new_lemma lemma(_(), __FUNCTION__);
mk_ineq(c_sign, c, llc::LE);
explain(c); // this explains c == +- d
mk_ineq(c_sign, a, -d_sign * b.rat_sign(), b.var(), negate(ab_cmp));
@ -223,7 +223,7 @@ void order::order_lemma_on_factorization(const monic& m, const factorization& ab
if (mv != fv) {
bool gt = mv > fv;
for (unsigned j = 0, k = 1; j < 2; j++, k--) {
new_lemma lemma(_());
new_lemma lemma(_(), __FUNCTION__);
order_lemma_on_ab(lemma, m, rsign, var(ab[k]), var(ab[j]), gt);
explain(ab);
explain(m);
@ -261,7 +261,7 @@ void order::generate_ol_eq(const monic& ac,
const monic& bc,
const factor& b) {
new_lemma lemma(_());
new_lemma lemma(_(), __FUNCTION__);
#if 0
IF_VERBOSE(0, verbose_stream() << var_val(ac) << "(" << mul_val(ac) << "): " << ac
<< " " << ab_cmp << " " << var_val(bc) << "(" << mul_val(bc) << "): " << bc << "\n"
@ -287,7 +287,7 @@ void order::generate_ol(const monic& ac,
const monic& bc,
const factor& b) {
new_lemma lemma(_());
new_lemma lemma(_(), __FUNCTION__);
#if 0
IF_VERBOSE(0, verbose_stream() << var_val(ac) << "(" << mul_val(ac) << "): " << ac
<< " " << ab_cmp << " " << var_val(bc) << "(" << mul_val(bc) << "): " << bc << "\n"