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fix #4879

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This commit is contained in:
Nikolaj Bjorner 2020-12-12 13:37:25 -08:00
parent 0643e7c0fc
commit f71204c222
4 changed files with 68 additions and 61 deletions
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10
src/muz/rel/dl_relation_manager.cpp
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@ -1375,7 +1375,7 @@ namespace datalog {
th_rewriter & m_simp;
app_ref m_condition;
expr_free_vars m_free_vars;
expr_ref_vector m_args;
mutable expr_ref_vector m_args;
public:
default_table_filter_interpreted_fn(context & ctx, unsigned col_cnt, app* condition)
: m_ast_manager(ctx.get_manager()),
@ -1388,13 +1388,13 @@ namespace datalog {
}
bool should_remove(const table_fact & f) const override {
expr_ref_vector& args = const_cast<expr_ref_vector&>(m_args);
expr_ref_vector& args = m_args;
args.reset();
//arguments need to be in reverse order for the substitution
unsigned col_cnt = f.size();
for(int i=col_cnt-1;i>=0;i--) {
if(!m_free_vars.contains(i)) {
for(int i = col_cnt; i-- > 0;) {
if (!m_free_vars.contains(i)) {
args.push_back(nullptr);
continue; //this variable does not occur in the condition;
}
@ -1403,7 +1403,7 @@ namespace datalog {
args.push_back(m_decl_util.mk_numeral(el, m_free_vars[i]));
}
expr_ref ground = m_vs(m_condition.get(), args.size(), args.c_ptr());
expr_ref ground = m_vs(m_condition.get(), args);
m_simp(ground);
return m_ast_manager.is_false(ground);