blob: 7bd91184a12239485e8119ff5bc1b44b6612bb06 (
plain)
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
|
var y: int;
var x: int;
procedure {:inline 1} bar(b: bool)
modifies y;
{
if (b) {
y := y + 1;
} else {
y := y - 1;
}
}
procedure {:inline 1} foo()
modifies x, y;
{
var b: bool;
if (b) {
x := x + 1;
call bar(true);
call bar(true);
x := x + 1;
} else {
x := x - 1;
call bar(false);
call bar(false);
x := x - 1;
}
}
procedure main()
requires x == y;
ensures x == y;
modifies x, y;
modifies y;
{
call foo();
assert x == y;
call bar(false);
}
|