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add debugging

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-03-15 18:59:19 -07:00
parent d4977cb2db
commit cdf080061e
1 changed files with 28 additions and 14 deletions
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42
src/sat/sat_lookahead.h
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@ -520,7 +520,7 @@ namespace sat {
struct arcs : public literal_vector {};
// Knuth uses a shared pool of fixed size for arcs.
// Should it be useful we could use this approach tooo
// Should it be useful we could use this approach too
// by changing the arcs abstraction and associated functions.
struct dfs_info {
@ -682,14 +682,16 @@ namespace sat {
std::ostream& display_dfs(std::ostream& out) const {
for (unsigned i = 0; i < m_candidates.size(); ++i) {
literal l(m_candidates[i].m_var, false);
arcs const& a1 = get_arcs(l);
if (!a1.empty()) {
out << l << " -> " << a1 << "\n";
}
arcs const& a2 = get_arcs(~l);
if (!a2.empty()) {
out << ~l << " -> " << a2 << "\n";
}
display_dfs(out, l);
display_dfs(out, ~l);
}
return out;
}
std::ostream& display_dfs(std::ostream& out, literal l) const {
arcs const& a1 = get_arcs(l);
if (!a1.empty()) {
out << l << " -> " << a1 << "\n";
}
return out;
}
@ -698,12 +700,23 @@ namespace sat {
display_dfs(out);
for (unsigned i = 0; i < m_candidates.size(); ++i) {
literal l(m_candidates[i].m_var, false);
out << l << " := " << get_parent(l) << "\n";
out << ~l << " := " << get_parent(~l) << "\n";
display_scc(out, l);
display_scc(out, ~l);
}
return out;
}
std::ostream& display_scc(std::ostream& out, literal l) const {
out << l << " := " << get_parent(l)
<< " min: " << get_min(l)
<< " rank: " << get_rank(l)
<< " height: " << get_height(l)
<< " link: " << get_link(l)
<< " vcomp: " << get_vcomp(l) << "\n";
return out;
}
// ------------------------------------
// lookahead forest
// sat11.w 115-121
@ -720,13 +733,13 @@ namespace sat {
}
void find_heights() {
TRACE("sat", tout << m_settled << "\n";);
TRACE("sat", display_scc(tout << m_settled << "\n"););
literal pp = null_literal;
set_child(pp, null_literal);
unsigned h = 0;
literal w;
for (unsigned i = 0; i < m_settled.size(); ++i) {
literal u = m_settled[i];
for (unsigned i = m_settled.size(); i > 0; ) {
literal u = m_settled[--i];
literal p = get_parent(u);
if (p != pp) {
h = 0;
@ -751,6 +764,7 @@ namespace sat {
set_child(w, u);
}
}
TRACE("sat", display_scc(tout); );
}
struct literal_offset {
literal m_lit;