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Merge branch 'master' of https://github.com/z3prover/z3

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Nikolaj Bjorner 2017-11-15 20:32:45 -08:00
commit f47671931f
1 changed files with 14 additions and 13 deletions
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27
src/muz/transforms/dl_mk_slice.cpp
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@ -426,8 +426,8 @@ namespace datalog {
bool change = true;
while (change) {
change = false;
for (unsigned i = 0; i < src.get_num_rules(); ++i) {
change = prune_rule(*src.get_rule(i)) || change;
for (rule* r : src) {
change = prune_rule(*r) || change;
}
}
}
@ -457,18 +457,19 @@ namespace datalog {
void mk_slice::solve_vars(rule& r, uint_set& used_vars, uint_set& parameter_vars) {
expr_ref_vector conjs = get_tail_conjs(r);
for (unsigned j = 0; j < conjs.size(); ++j) {
expr* e = conjs[j].get();
for (expr * e : conjs) {
expr_ref r(m);
unsigned v;
if (is_eq(e, v, r) && is_output(v) && m_var_is_sliceable[v]) {
TRACE("dl", tout << "is_eq: " << mk_pp(e, m) << " " << (m_solved_vars[v].get()?"solved":"new") << "\n";);
add_var(v);
if (!m_solved_vars[v].get()) {
TRACE("dl", tout << v << " is solved\n";);
add_free_vars(parameter_vars, r);
m_solved_vars[v] = r;
}
else {
TRACE("dl", tout << v << " is used\n";);
// variables can only be solved once.
add_free_vars(used_vars, e);
add_free_vars(used_vars, m_solved_vars[v].get());
@ -508,10 +509,9 @@ namespace datalog {
//
uint_set used_vars, parameter_vars;
solve_vars(r, used_vars, parameter_vars);
uint_set::iterator it = used_vars.begin(), end = used_vars.end();
for (; it != end; ++it) {
if (*it < m_var_is_sliceable.size()) {
m_var_is_sliceable[*it] = false;
for (unsigned uv : used_vars) {
if (uv < m_var_is_sliceable.size()) {
m_var_is_sliceable[uv] = false;
}
}
//
@ -533,6 +533,9 @@ namespace datalog {
if (m_solved_vars[i].get()) {
m_var_is_sliceable[i] = false;
}
if (parameter_vars.contains(i)) {
m_var_is_sliceable[i] = false;
}
}
else if (is_output) {
if (parameter_vars.contains(i)) {
@ -687,11 +690,9 @@ namespace datalog {
}
void mk_slice::display(std::ostream& out) {
obj_map<func_decl, bit_vector>::iterator it = m_sliceable.begin();
obj_map<func_decl, bit_vector>::iterator end = m_sliceable.end();
for (; it != end; ++it) {
out << it->m_key->get_name() << " ";
bit_vector const& bv = it->m_value;
for (auto const& kv : m_sliceable) {
out << kv.m_key->get_name() << " ";
bit_vector const& bv = kv.m_value;
for (unsigned i = 0; i < bv.size(); ++i) {
out << (bv.get(i)?"1":"0");
}