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merge useful utilities from qsat

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-03-19 12:01:44 -07:00
parent f951372f03
commit f175f864ec
32 changed files with 323 additions and 38 deletions
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8
src/math/polynomial/algebraic_numbers.cpp
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@ -539,7 +539,6 @@ namespace algebraic_numbers {
}
bool factor(scoped_upoly const & up, factors & r) {
// std::cout << "factor: "; upm().display(std::cout, up); std::cout << std::endl;
if (m_factor) {
return upm().factor(up, r, m_factor_params);
}
@ -547,7 +546,7 @@ namespace algebraic_numbers {
scoped_upoly & up_sqf = m_isolate_tmp3;
up_sqf.reset();
upm().square_free(up.size(), up.c_ptr(), up_sqf);
TRACE("anum_bug", upm().display(tout, up_sqf.size(), up_sqf.c_ptr()); tout << "\n";);
TRACE("algebraic", upm().display(tout, up_sqf.size(), up_sqf.c_ptr()); tout << "\n";);
r.push_back(up_sqf, 1);
return false;
}
@ -566,6 +565,7 @@ namespace algebraic_numbers {
}
void isolate_roots(scoped_upoly const & up, numeral_vector & roots) {
TRACE("algebraic", upm().display(tout, up); tout << "\n";);
if (up.empty())
return; // ignore the zero polynomial
factors & fs = m_isolate_factors;
@ -586,6 +586,7 @@ namespace algebraic_numbers {
upolynomial::numeral_vector const & f = fs[i];
// polynomial f contains the non zero roots
unsigned d = upm().degree(f);
TRACE("algebraic", tout << "factor " << i << " degree: " << d << "\n";);
if (d == 0)
continue; // found all roots of f
scoped_mpq r(qm());
@ -601,8 +602,9 @@ namespace algebraic_numbers {
}
SASSERT(m_isolate_roots.empty() && m_isolate_lowers.empty() && m_isolate_uppers.empty());
upm().sqf_isolate_roots(f.size(), f.c_ptr(), bqm(), m_isolate_roots, m_isolate_lowers, m_isolate_uppers);
// collect rational/basic roots
// collect rational/basic roots
unsigned sz = m_isolate_roots.size();
TRACE("algebraic", tout << "isolated roots: " << sz << "\n";);
for (unsigned i = 0; i < sz; i++) {
to_mpq(qm(), m_isolate_roots[i], r);
roots.push_back(numeral(mk_basic_cell(r)));