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add tc and trc functionals for binary relations

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-04-09 22:47:01 +02:00
parent d3305aac16
commit ae982c5225
13 changed files with 361 additions and 77 deletions
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9
src/smt/diff_logic.h
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@ -468,8 +468,9 @@ public:
// That is init_var receives the id as an argument.
void init_var(dl_var v) {
TRACE("diff_logic_bug", tout << "init_var " << v << "\n";);
SASSERT(static_cast<unsigned>(v) >= m_out_edges.size() ||
m_out_edges[v].empty());
if (static_cast<unsigned>(v) < m_out_edges.size() && (!m_out_edges[v].empty() || !m_in_edges[v].empty())) {
return;
}
SASSERT(check_invariant());
while (static_cast<unsigned>(v) >= m_out_edges.size()) {
m_assignment .push_back(numeral());
@ -649,6 +650,10 @@ public:
}
bool can_reach(dl_var src, dl_var dst) {
if (static_cast<unsigned>(src) >= m_out_edges.size() ||
static_cast<unsigned>(dst) >= m_out_edges.size()) {
return false;
}
uint_set target, visited;
target.insert(dst);
return reachable(src, target, visited, dst);