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add tc and trc functionals for binary relations

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-04-10 00:57:50 +02:00
parent 182039eb44
commit 9c9cd5ebf7
3 changed files with 71 additions and 11 deletions
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5
src/ast/special_relations_decl_plugin.cpp
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@ -45,6 +45,9 @@ func_decl * special_relations_decl_plugin::mk_func_decl(
if (!range) {
range = m_manager->mk_bool_sort();
}
if (!m_manager->is_bool(range) && k != OP_SPECIAL_RELATION_NEXT) {
m_manager->raise_exception("range type is expected to be Boolean for special relations");
}
func_decl_info info(m_family_id, k, num_parameters, parameters);
symbol name;
switch(k) {
@ -67,6 +70,8 @@ void special_relations_decl_plugin::get_op_names(svector<builtin_name> & op_name
op_names.push_back(builtin_name(m_to.bare_str(), OP_SPECIAL_RELATION_TO));
op_names.push_back(builtin_name(m_tc.bare_str(), OP_SPECIAL_RELATION_TC));
op_names.push_back(builtin_name(m_trc.bare_str(), OP_SPECIAL_RELATION_TRC));
// next is an internal skolem function used for unfolding a relation R to satisfy a relation that
// is asserted for the transitive closure of R.
}
}