void context::display_literal_info(std::ostream & out, literal l) const {
l.display_compact(out, m_bool_var2expr.c_ptr());
if (l.sign())
out << " (not " << mk_bounded_pp(bool_var2expr(l.var()), m_manager, 10) << ") ";
else
out << " " << mk_bounded_pp(bool_var2expr(l.var()), m_manager, 10) << " ";
out << "relevant: " << is_relevant(bool_var2expr(l.var())) << ", val: " << get_assignment(l) << "\n";
}
void context::check_sorts(ast * n) {
if (!m().check_sorts(n)) {
switch(n->get_kind()) {
case AST_APP: {
std::ostringstream buffer;
app * a = to_app(n);
buffer << mk_pp(a->get_decl(), m()) << " applied to: ";
if (a->get_num_args() > 1) buffer << "\n";
for (unsigned i = 0; i < a->get_num_args(); ++i) {
buffer << mk_bounded_pp(a->get_arg(i), m(), 3) << " of sort ";
buffer << mk_pp(m().get_sort(a->get_arg(i)), m()) << "\n";
}
warning_msg("%s",buffer.str().c_str());
break;
}
case AST_VAR:
case AST_QUANTIFIER:
case AST_SORT:
case AST_FUNC_DECL:
break;
}
set_error_code(Z3_SORT_ERROR);
}
}
void operator()(expr * t) {
SASSERT(m.is_bool(t));
push_frame(t, true);
SASSERT(!m_frame_stack.empty());
while (!m_frame_stack.empty()) {
frame & fr = m_frame_stack.back();
expr * t = fr.m_t;
bool form_ctx = fr.m_form_ctx;
TRACE("cofactor", tout << "processing, form_ctx: " << form_ctx << "\n" << mk_bounded_pp(t, m) << "\n";);
m_owner.checkpoint();
if (m_processed.is_marked(t)) {
save_candidate(t, form_ctx);
m_frame_stack.pop_back();
continue;
}
if (m.is_term_ite(t)) {
m_has_term_ite.mark(t);
m_processed.mark(t);
m_frame_stack.pop_back();
continue;
}
if (fr.m_first) {
fr.m_first = false;
bool visited = true;
if (is_app(t)) {
unsigned num_args = to_app(t)->get_num_args();
for (unsigned i = 0; i < num_args; i++)
visit(to_app(t)->get_arg(i), form_ctx, visited);
}
// ignoring quantifiers
if (!visited)
continue;
}
if (is_app(t)) {
unsigned num_args = to_app(t)->get_num_args();
unsigned i;
for (i = 0; i < num_args; i++) {
if (m_has_term_ite.is_marked(to_app(t)->get_arg(i)))
break;
}
if (i < num_args) {
m_has_term_ite.mark(t);
TRACE("cofactor", tout << "saving candidate: " << form_ctx << "\n" << mk_bounded_pp(t, m) << "\n";);
save_candidate(t, form_ctx);
}
