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implementing model updates

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-30 16:11:51 -05:00
parent 92b5301b7f
commit 3de8c193ea
63 changed files with 482 additions and 294 deletions
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36
src/sat/tactic/goal2sat.cpp
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@ -968,21 +968,31 @@ struct sat2goal::imp {
return res;
}
void display(std::ostream & out) {
out << "(sat-model-converter\n";
m_mc.display(out);
sat::bool_var_set vars;
m_mc.collect_vars(vars);
out << "(atoms";
unsigned sz = m_var2expr.size();
for (unsigned i = 0; i < sz; i++) {
if (vars.contains(i)) {
out << "\n (" << i << "\n " << mk_ismt2_pp(m_var2expr.get(i), m(), 2) << ")";
}
expr_ref lit2expr(sat::literal l) {
expr_ref result(m_var2expr.get(l.var()), m());
if (l.sign()) {
result = m().mk_not(result);
}
return result;
}
void display(std::ostream & out) {
vector<sat::literal_vector> updates;
m_mc.expand(updates);
for (sat::literal_vector const& clause : updates) {
expr_ref_vector tail(m());
sat::literal lit0 = clause[0];
for (unsigned i = 1; i < clause.size(); ++i) {
tail.push_back(lit2expr(~clause[i]));
}
expr_ref def(m().mk_or(lit2expr(lit0), mk_and(tail)), m());
if (lit0.sign()) {
lit0.neg();
def = m().mk_not(def);
}
display_add(out, m(), to_app(lit2expr(lit0))->get_decl(), def);
}
out << ")\n";
m_fmc->display(out);
out << ")\n";
}
};