1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*******************************************************************\
Module: Tests for abstract_environmentt::to_predicate
Author: Jez Higgins
\*******************************************************************/
#include <util/arith_tools.h>
#include <util/bitvector_types.h>
#include <util/namespace.h>
#include <util/symbol_table.h>
#include <analyses/variable-sensitivity/abstract_environment.h>
#include <analyses/variable-sensitivity/variable_sensitivity_object_factory.h>
#include <analyses/variable-sensitivity/variable_sensitivity_test_helpers.h>
// NOLINTNEXTLINE(whitespace/line_length)
#include <analyses/variable-sensitivity/constant_abstract_value.h> // IWYU pragma: keep
#include <testing-utils/use_catch.h>
SCENARIO(
"abstract_environment to predicate",
"[core][analyses][variable-sensitivity][abstract_environment][to_predicate]")
{
auto config = vsd_configt::constant_domain();
config.context_tracking.data_dependency_context = false;
config.context_tracking.last_write_context = false;
auto object_factory =
variable_sensitivity_object_factoryt::configured_with(config);
symbol_tablet symbol_table;
namespacet ns(symbol_table);
GIVEN("an abstract environment")
{
WHEN("it is TOP")
{
auto env = abstract_environmentt{object_factory};
env.make_top();
THEN_PREDICATE(env, "TRUE");
}
WHEN("it is BOTTOM")
{
auto env = abstract_environmentt{object_factory};
env.make_bottom();
THEN_PREDICATE(env, "FALSE");
}
WHEN("contains x = 2")
{
auto env = abstract_environmentt{object_factory};
env.make_top();
auto type = signedbv_typet(32);
auto val2 = make_constant(from_integer(2, type), env, ns);
auto x_name = symbol_exprt("x", type);
env.assign(x_name, val2, ns);
THEN_PREDICATE(env, "x == 2");
}
WHEN("contains x = 2, y = 3")
{
auto env = abstract_environmentt{object_factory};
env.make_top();
auto type = signedbv_typet(32);
auto val2 = make_constant(from_integer(2, type), env, ns);
auto x_name = symbol_exprt("x", type);
auto val3 = make_constant(from_integer(3, type), env, ns);
auto y_name = symbol_exprt("y", type);
env.assign(x_name, val2, ns);
env.assign(y_name, val3, ns);
THEN_PREDICATE(env, "x == 2 && y == 3");
}
}
}
|
