def get_value_from_tuple_yval(self, yval):
tuple_size = yapi.yices_val_tuple_arity(self.model, yval)
if tuple_size <= 0:
return None
yval_array = yapi.make_empty_yval_array(tuple_size)
errcode = yapi.yices_val_expand_tuple(self.model, yval, yval_array)
if errcode == -1:
raise YicesException('yices_val_expand_tuple')
retval = [ self.get_value_from_yval(yval_array[i]) for i in range(0, tuple_size) ]
return tuple(retval)
def get_value_from_mapping_yval(self, yval):
mapping_size = yapi.yices_val_mapping_arity(self.model, yval)
if mapping_size <= 0:
return None
ytgt = yapi.yval_t()
ysrc = yapi.make_empty_yval_array(mapping_size)
errcode = yapi.yices_val_expand_mapping(self.model, yval, ysrc, ytgt)
if errcode == -1:
raise YicesException('yices_val_expand_mapping')
src = [self.get_value_from_yval(ysrc[i]) for i in range(0, mapping_size) ]
tgt = self.get_value_from_yval(ytgt)
return (tuple(src), tgt)
def test_tuple_models(self):
tup_t = yapi.yices_tuple_type3(self.bool_t, self.real_t, self.int_t)
t1 = define_const('t1', tup_t)
assert_formula(
'(ite (select t1 1) (< (select t1 2) (select t1 3)) (> (select t1 2) (select t1 3)))',
self.ctx)
self.assertEqual(yapi.yices_check_context(self.ctx, self.param), 3)
mdl = yapi.yices_get_model(self.ctx, 1)
mdlstr = yapi.yices_model_to_string(mdl, 80, 100, 0)
self.assertEqual(mdlstr, '(= t1 (mk-tuple false 1 0))')
yv1 = yapi.yval_t()
yapi.yices_get_value(mdl, t1, yv1)
self.assertEqual(yv1.node_tag, yapi.YVAL_TUPLE)
self.assertEqual(yapi.yices_val_tuple_arity(mdl, yv1), 3)
yvarr = yapi.make_empty_yval_array(3)
yapi.yices_val_expand_tuple(mdl, yv1, yvarr)
self.assertEqual(yvarr[0].node_tag, yapi.YVAL_BOOL)
bval1 = c_int32()
ival1 = c_int32()
yapi.yices_val_get_bool(mdl, yvarr[0], bval1)
self.assertEqual(bval1.value, 0)
yapi.yices_val_get_int32(mdl, yvarr[1], ival1)
self.assertEqual(ival1.value, 1)
def test_function_models(self):
funtype = yapi.yices_function_type3(self.int_t, self.bool_t,
self.real_t, self.real_t)
ftystr = yapi.yices_type_to_string(funtype, 100, 80, 0)
yapi.yices_pp_type_fd(1, funtype, 100, 80, 0)
self.assertEqual(ftystr, '(-> int bool real real)')
fun1 = define_const('fun1', funtype)
define_const('b1', self.bool_t)
i1 = define_const('i1', self.int_t)
r1 = define_const('r1', self.real_t)
assert_formula(
'(> (fun1 i1 b1 r1) (fun1 (+ i1 1) (not b1) (- r1 i1)))', self.ctx)
self.assertEqual(yapi.yices_check_context(self.ctx, self.param),
yapi.STATUS_SAT)
mdl = yapi.yices_get_model(self.ctx, 1)
mdlstr = yapi.yices_model_to_string(mdl, 80, 100, 0)
self.assertEqual(
mdlstr,
'(= b1 false)\n(= i1 1463)\n(= r1 -579)\n(function fun1\n (type (-> int bool real real))\n (= (fun1 1463 false -579) 1)\n (= (fun1 1464 true -2042) 0)\n (default 2))'
)
yv1 = yapi.yval_t()
yapi.yices_get_value(mdl, fun1, yv1)
self.assertEqual(yv1.node_tag, yapi.YVAL_FUNCTION)
self.assertEqual(yapi.yices_val_function_arity(mdl, yv1), 3)
def1 = yapi.yval_t()
vec1 = yapi.yval_vector_t()
yapi.yices_init_yval_vector(vec1)
yapi.yices_val_expand_function(mdl, yv1, def1, vec1)
self.assertEqual(def1.node_tag, yapi.YVAL_RATIONAL)
i32val1 = c_int32()
yapi.yices_val_get_int32(mdl, def1, i32val1)
self.assertEqual(i32val1.value, 2)
self.assertEqual(vec1.size, 2)
map1 = vec1.data[0]
map2 = vec1.data[1]
self.assertEqual(map1.node_tag, yapi.YVAL_MAPPING)
self.assertEqual(map2.node_tag, yapi.YVAL_MAPPING)
self.assertEqual(yapi.yices_val_mapping_arity(mdl, map1), 3)
self.assertEqual(yapi.yices_val_mapping_arity(mdl, map2), 3)
# First mapping
args1 = yapi.make_empty_yval_array(3)
yval1 = yapi.yval_t()
yapi.yices_val_expand_mapping(mdl, map1, args1, yval1)
self.assertEqual(yval1.node_tag, yapi.YVAL_RATIONAL)
self.assertEqual(yapi.yices_val_is_int32(mdl, yval1), 1)
val1 = c_int32()
yapi.yices_val_get_int32(mdl, yval1, val1)
self.assertEqual(val1.value, 1)
self.assertEqual(args1[0].node_tag, yapi.YVAL_RATIONAL)
self.assertEqual(yapi.yices_val_is_int32(mdl, args1[0]), 1)
m1arg1 = c_int32()
yapi.yices_val_get_int32(mdl, args1[0], m1arg1)
self.assertEqual(m1arg1.value, 1463)
self.assertEqual(args1[1].node_tag, yapi.YVAL_BOOL)
m1arg2 = c_int()
yapi.yices_val_get_bool(mdl, args1[1], m1arg2)
self.assertEqual(m1arg2.value, 0)
m1arg3 = c_int32()
yapi.yices_val_get_int32(mdl, args1[2], m1arg3)
self.assertEqual(m1arg3.value, -579)
# Second mapping
args2 = yapi.make_empty_yval_array(3)
yval2 = yapi.yval_t()
yapi.yices_val_expand_mapping(mdl, map2, args2, yval2)
self.assertEqual(yval2.node_tag, yapi.YVAL_RATIONAL)
self.assertEqual(yapi.yices_val_is_int32(mdl, yval2), 1)
val2 = c_int32()
yapi.yices_val_get_int32(mdl, yval2, val2)
self.assertEqual(val2.value, 0)
self.assertEqual(args2[0].node_tag, yapi.YVAL_RATIONAL)
self.assertEqual(yapi.yices_val_is_int32(mdl, args2[0]), 1)
m2arg2 = c_int32()
yapi.yices_val_get_int32(mdl, args2[0], m2arg2)
self.assertEqual(m2arg2.value, 1464)
self.assertEqual(args2[1].node_tag, yapi.YVAL_BOOL)
m2arg2 = c_int()
yapi.yices_val_get_bool(mdl, args2[1], m2arg2)
self.assertEqual(m2arg2.value, 1)
m2arg3 = c_int32()
yapi.yices_val_get_int32(mdl, args2[2], m2arg3)
self.assertEqual(m2arg3.value, -2042)
fmla = yapi.yices_parse_term('(> i1 r1)')
self.assertEqual(yapi.yices_formula_true_in_model(mdl, fmla), 1)
a_arr = yapi.make_term_array([i1, fmla, r1])
b_arr = yapi.make_empty_term_array(3)
yapi.yices_term_array_value(mdl, 3, a_arr, b_arr)
self.assertEqual(b_arr[0], yapi.yices_int32(1463))
self.assertEqual(b_arr[1], yapi.yices_true())
self.assertEqual(b_arr[2], yapi.yices_int32(-579))
yapi.yices_pp_term_array_fd(1, 3, b_arr, 100, 10, 0, 0)
tvec3 = yapi.term_vector_t()
yapi.yices_init_term_vector(tvec3)
yapi.yices_generalize_model(mdl, fmla, 1, a_arr, 0, tvec3)
yapi.yices_delete_term_vector(tvec3)