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make get_vars populate all indices with sorts even if variable does not occur in rule. This makes the use of get_vars less prone to callers having to double check for null pointers

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-07-21 17:12:39 +02:00
parent 72fe197bda
commit 4957e71408
8 changed files with 16 additions and 21 deletions
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10
src/muz/bmc/dl_bmc_engine.cpp
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@ -148,7 +148,7 @@ namespace datalog {
void mk_qrule_vars(datalog::rule const& r, unsigned rule_id, expr_ref_vector& sub) {
ptr_vector<sort> sorts;
r.get_vars(sorts);
r.get_vars(m, sorts);
// populate substitution of bound variables.
sub.reset();
sub.resize(sorts.size());
@ -421,7 +421,7 @@ namespace datalog {
ptr_vector<sort> rule_vars;
expr_ref_vector args(m), conjs(m);
r.get_vars(rule_vars);
r.get_vars(m, rule_vars);
obj_hashtable<expr> used_vars;
unsigned num_vars = 0;
for (unsigned i = 0; i < r.get_decl()->get_arity(); ++i) {
@ -514,7 +514,7 @@ namespace datalog {
unsigned sz = r->get_uninterpreted_tail_size();
ptr_vector<sort> rule_vars;
r->get_vars(rule_vars);
r->get_vars(m, rule_vars);
args.append(prop->get_num_args(), prop->get_args());
expr_ref_vector sub = mk_skolem_binding(*r, rule_vars, args);
if (sub.empty() && sz == 0) {
@ -803,7 +803,7 @@ namespace datalog {
func_decl* p = r.get_decl();
ptr_vector<func_decl> const& succs = *dtu.get_datatype_constructors(m.get_sort(path));
// populate substitution of bound variables.
r.get_vars(sorts);
r.get_vars(m, sorts);
sub.reset();
sub.resize(sorts.size());
for (unsigned k = 0; k < r.get_decl()->get_arity(); ++k) {
@ -1327,7 +1327,7 @@ namespace datalog {
void mk_rule_vars(rule& r, unsigned level, unsigned rule_id, expr_ref_vector& sub) {
ptr_vector<sort> sorts;
r.get_vars(sorts);
r.get_vars(m, sorts);
// populate substitution of bound variables.
sub.reset();
sub.resize(sorts.size());