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add set-has-size to API and python bindings

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-04-16 15:38:14 -07:00
parent d4410d0872
commit 502b29c424
4 changed files with 15 additions and 1 deletions
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1
src/api/api_array.cpp
View file

@ -263,6 +263,7 @@ extern "C" {
MK_UNARY(Z3_mk_set_complement, mk_c(c)->get_array_fid(), OP_SET_COMPLEMENT, SKIP);
MK_BINARY(Z3_mk_set_subset, mk_c(c)->get_array_fid(), OP_SET_SUBSET, SKIP);
MK_BINARY(Z3_mk_array_ext, mk_c(c)->get_array_fid(), OP_ARRAY_EXT, SKIP);
MK_BINARY(Z3_mk_set_has_size, mk_c(c)->get_array_fid(), OP_SET_HAS_SIZE, SKIP);
Z3_ast Z3_API Z3_mk_as_array(Z3_context c, Z3_func_decl f) {
Z3_TRY;

5
src/api/python/z3/z3.py
View file

@ -4504,6 +4504,11 @@ def Ext(a, b):
_z3_assert(is_array(a) and is_array(b), "arguments must be arrays")
return _to_expr_ref(Z3_mk_array_ext(ctx.ref(), a.as_ast(), b.as_ast()), ctx)
def SetHasSize(a, k):
ctx = a.ctx
k = _py2expr(k, ctx)
return _to_expr_ref(Z3_mk_set_has_size(ctx.ref(), a.as_ast(), k.as_ast()), ctx)
def is_select(a):
"""Return `True` if `a` is a Z3 array select application.

8
src/api/z3_api.h
View file

@ -3106,6 +3106,14 @@ extern "C" {
def_API('Z3_mk_as_array', AST, (_in(CONTEXT), _in(FUNC_DECL)))
*/
Z3_ast Z3_API Z3_mk_as_array(Z3_context c, Z3_func_decl f);
/**
\brief Create predicate that holds if Boolean array \c set has \c k elements set to true.
def_API('Z3_mk_set_has_size', AST, (_in(CONTEXT), _in(AST), _in(AST)))
*/
Z3_ast Z3_API Z3_mk_set_has_size(Z3_context c, Z3_ast set, Z3_ast k);
/*@}*/
/** @name Sets */

2
src/smt/theory_array_base.cpp
View file

@ -621,7 +621,7 @@ namespace smt {
if (!ctx.is_relevant(n))
continue;
if (is_store(n) || is_const(n) || is_default(n))
if (is_store(n) || is_const(n) || is_default(n) || is_set_has_size(n))
return false;
}
return true;