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DoC: add slow path to emptiness detection that uses SMT solving

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Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
This commit is contained in:
Nuno Lopes 2014-09-30 15:58:38 +01:00
parent 938a5adafa
commit 1606359dc9
6 changed files with 25 additions and 43 deletions
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4
src/muz/rel/rel_context.cpp
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@ -375,7 +375,7 @@ namespace datalog {
for (; it != end; ++it) {
func_decl* pred = *it;
relation_base & rel = get_relation(pred);
if (!rel.empty()) {
if (!rel.fast_empty()) {
non_empty = true;
break;
}
@ -449,7 +449,7 @@ namespace datalog {
bool rel_context::is_empty_relation(func_decl* pred) const {
relation_base* rb = try_get_relation(pred);
return !rb || rb->empty();
return !rb || rb->fast_empty();
}
relation_manager & rel_context::get_rmanager() { return m_rmanager; }