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fixes for mixed case

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-01-16 15:15:07 -08:00
parent 9c8d5ddffb
commit fd1e0e4d80
5 changed files with 280 additions and 180 deletions
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37
src/smt/theory_lra.cpp
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@ -1735,19 +1735,36 @@ public:
bool is_int = offset.is_int();
u_map<rational> coeffs;
term2coeffs(term, coeffs);
TRACE("arith",
lp().print_term(term, tout << "term: ") << "\n";
for (auto const& kv : coeffs) {
tout << "v" << kv.m_key << " * " << kv.m_value << "\n";
TRACE("arith",
{
bool all_ints = true;
lp().print_term(term, tout << "term: ") << "\n";
for (auto const& kv : coeffs) {
if (kv.m_value.is_int() == false)
all_ints = false;
tout << "v" << kv.m_key << " * " << kv.m_value << "\n";
}
tout << offset << "\n";
if (all_ints) {
rational g(0);
for (auto const& kv : coeffs) {
g = gcd(g, kv.m_value);
}
tout << "gcd: " << g << "\n";
}
}
tout << offset << "\n";
rational g(0);
for (auto const& kv : coeffs) {
g = gcd(g, kv.m_value);
}
tout << "gcd: " << g << "\n";
);
bool all_ints = true;
if (is_int) {
for (auto const& kv : coeffs) {
if (kv.m_value.is_int() == false) {
all_ints = false;
break;
}
}
}
if (is_int && all_ints) {
// 3x + 6y >= 5 -> x + 3y >= 5/3, then x + 3y >= 2
// 3x + 6y <= 5 -> x + 3y <= 1