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Add set.singleton operator to finite_sets_decl_plugin

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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot] 2025-10-05 02:00:50 +00:00
parent 12173923a0
commit 980ea35b0e
3 changed files with 36 additions and 1 deletions
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21
src/ast/finite_sets_decl_plugin.cpp
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@ -23,6 +23,7 @@ Revision History:
finite_sets_decl_plugin::finite_sets_decl_plugin():
m_empty_sym("set.empty"),
m_singleton_sym("set.singleton"),
m_union_sym("set.union"),
m_intersect_sym("set.intersect"),
m_difference_sym("set.difference"),
@ -96,6 +97,23 @@ func_decl * finite_sets_decl_plugin::mk_empty(sort* element_sort) {
func_decl_info(m_family_id, OP_FINITE_SET_EMPTY, 1, &param));
}
func_decl * finite_sets_decl_plugin::mk_singleton(unsigned arity, sort * const * domain) {
if (arity != 1) {
m_manager->raise_exception("set.singleton takes exactly one argument");
return nullptr;
}
// The element sort is the domain
sort* element_sort = domain[0];
// Create the result sort: FiniteSet of the element type
parameter param(element_sort);
sort* finite_set_sort = m_manager->mk_sort(m_family_id, FINITE_SET_SORT, 1, &param);
return m_manager->mk_func_decl(m_singleton_sym, arity, domain, finite_set_sort,
func_decl_info(m_family_id, OP_FINITE_SET_SINGLETON));
}
func_decl * finite_sets_decl_plugin::mk_union(unsigned arity, sort * const * domain) {
if (arity != 2) {
m_manager->raise_exception("set.union takes exactly two arguments");
@ -291,6 +309,8 @@ func_decl * finite_sets_decl_plugin::mk_func_decl(decl_kind k, unsigned num_para
return nullptr;
}
return mk_empty(to_sort(parameters[0].get_ast()));
case OP_FINITE_SET_SINGLETON:
return mk_singleton(arity, domain);
case OP_FINITE_SET_UNION:
return mk_union(arity, domain);
case OP_FINITE_SET_INTERSECT:
@ -324,6 +344,7 @@ func_decl * finite_sets_decl_plugin::mk_func_decl(decl_kind k, unsigned num_para
void finite_sets_decl_plugin::get_op_names(svector<builtin_name>& op_names, symbol const & logic) {
op_names.push_back(builtin_name("set.empty", OP_FINITE_SET_EMPTY));
op_names.push_back(builtin_name("set.singleton", OP_FINITE_SET_SINGLETON));
op_names.push_back(builtin_name("set.union", OP_FINITE_SET_UNION));
op_names.push_back(builtin_name("set.intersect", OP_FINITE_SET_INTERSECT));
op_names.push_back(builtin_name("set.difference", OP_FINITE_SET_DIFFERENCE));