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Move ast_counter to location for common utilities. It depends on get_free_vars, so is in rewriter directory

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2013-03-19 09:47:52 -07:00
parent d4d3ba104e
commit b0787024c7
15 changed files with 78 additions and 262 deletions
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150
src/muz_qe/dl_util.cpp
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@ -431,89 +431,8 @@ namespace datalog {
}
}
void counter::update(unsigned el, int delta) {
int & counter = get(el);
SASSERT(!m_stay_non_negative || counter>=0);
SASSERT(!m_stay_non_negative || static_cast<int>(counter)>=-delta);
counter += delta;
}
int & counter::get(unsigned el) {
return m_data.insert_if_not_there2(el, 0)->get_data().m_value;
}
counter & counter::count(unsigned sz, const unsigned * els, int delta) {
for(unsigned i=0; i<sz; i++) {
update(els[i], delta);
}
return *this;
}
unsigned counter::get_positive_count() const {
unsigned cnt = 0;
iterator eit = begin();
iterator eend = end();
for(; eit!=eend; ++eit) {
if( eit->m_value>0 ) {
cnt++;
}
}
return cnt;
}
void counter::collect_positive(idx_set & acc) const {
iterator eit = begin();
iterator eend = end();
for(; eit!=eend; ++eit) {
if(eit->m_value>0) { acc.insert(eit->m_key); }
}
}
bool counter::get_max_positive(unsigned & res) const {
bool found = false;
iterator eit = begin();
iterator eend = end();
for(; eit!=eend; ++eit) {
if( eit->m_value>0 && (!found || eit->m_key>res) ) {
found = true;
res = eit->m_key;
}
}
return found;
}
unsigned counter::get_max_positive() const {
unsigned max_pos;
VERIFY(get_max_positive(max_pos));
return max_pos;
}
int counter::get_max_counter_value() const {
int res = 0;
iterator eit = begin();
iterator eend = end();
for (; eit!=eend; ++eit) {
if( eit->m_value>res ) {
res = eit->m_value;
}
}
return res;
}
void var_counter::count_vars(ast_manager & m, const app * pred, int coef) {
unsigned n = pred->get_num_args();
for (unsigned i = 0; i < n; i++) {
m_sorts.reset();
::get_free_vars(pred->get_arg(i), m_sorts);
for (unsigned j = 0; j < m_sorts.size(); ++j) {
if (m_sorts[j]) {
update(j, coef);
}
}
}
}
void var_counter::count_vars(ast_manager & m, const rule * r, int coef) {
void rule_counter::count_rule_vars(ast_manager & m, const rule * r, int coef) {
count_vars(m, r->get_head(), 1);
unsigned n = r->get_tail_size();
for (unsigned i = 0; i < n; i++) {
@ -521,50 +440,7 @@ namespace datalog {
}
}
unsigned var_counter::get_max_var(bool& has_var) {
has_var = false;
unsigned max_var = 0;
while (!m_todo.empty()) {
expr* e = m_todo.back();
unsigned scope = m_scopes.back();
m_todo.pop_back();
m_scopes.pop_back();
if (m_visited.is_marked(e)) {
continue;
}
m_visited.mark(e, true);
switch(e->get_kind()) {
case AST_QUANTIFIER: {
quantifier* q = to_quantifier(e);
m_todo.push_back(q->get_expr());
m_scopes.push_back(scope + q->get_num_decls());
break;
}
case AST_VAR: {
if (to_var(e)->get_idx() >= scope + max_var) {
has_var = true;
max_var = to_var(e)->get_idx() - scope;
}
break;
}
case AST_APP: {
app* a = to_app(e);
for (unsigned i = 0; i < a->get_num_args(); ++i) {
m_todo.push_back(a->get_arg(i));
m_scopes.push_back(scope);
}
break;
}
default:
UNREACHABLE();
break;
}
}
m_visited.reset();
return max_var;
}
unsigned var_counter::get_max_var(const rule & r) {
unsigned rule_counter::get_max_rule_var(const rule & r) {
m_todo.push_back(r.get_head());
m_scopes.push_back(0);
unsigned n = r.get_tail_size();
@ -576,22 +452,6 @@ namespace datalog {
return get_max_var(has_var);
}
unsigned var_counter::get_max_var(expr* e) {
bool has_var = false;
m_todo.push_back(e);
m_scopes.push_back(0);
return get_max_var(has_var);
}
unsigned var_counter::get_next_var(expr* e) {
bool has_var = false;
m_todo.push_back(e);
m_scopes.push_back(0);
unsigned mv = get_max_var(has_var);
if (has_var) mv++;
return mv;
}
void del_rule(horn_subsume_model_converter* mc, rule& r) {
if (mc) {
ast_manager& m = mc->get_manager();
@ -678,10 +538,6 @@ namespace datalog {
proof_converter* mk_skip_proof_converter() { return alloc(skip_proof_converter); }
unsigned get_max_var(const rule & r, ast_manager & m) {
var_counter ctr;
return ctr.get_max_var(r);
}
void reverse_renaming(ast_manager & m, const expr_ref_vector & src, expr_ref_vector & tgt) {
SASSERT(tgt.empty());