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#include <assert.h>
#include <stdlib.h>
union UNIONNAME
{
int x1;
struct
{
char y1;
// char padding;
short y2;
short y3;
} x2;
char x3[3];
};
int main()
{
__CPROVER_field_decl_local("field2", (_Bool)0);
union UNIONNAME u;
assert(__CPROVER_get_field(&u, "field2") == 0);
assert(__CPROVER_get_field(&(u.x1), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y1), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y2), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y3), "field2") == 0);
// Not allowed: assert(__CPROVER_get_field(u.x3, "field2") == 0);
assert(__CPROVER_get_field(&(u.x3[0]), "field2") == 0);
assert(__CPROVER_get_field(&(u.x3[1]), "field2") == 0);
assert(__CPROVER_get_field(&(u.x3[2]), "field2") == 0);
__CPROVER_set_field(&(u.x1), "field2", 1);
assert(__CPROVER_get_field(&u, "field2") == 1);
assert(__CPROVER_get_field(&(u.x1), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2.y1), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2.y2), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2.y3), "field2") == 0);
// Not allowed: assert(__CPROVER_get_field(u.x3, "field2") == 1);
assert(__CPROVER_get_field(&(u.x3[0]), "field2") == 1);
assert(__CPROVER_get_field(&(u.x3[1]), "field2") == 1);
assert(__CPROVER_get_field(&(u.x3[2]), "field2") == 1);
__CPROVER_set_field(&(u.x2.y1), "field2", 0);
assert(__CPROVER_get_field(&u, "field2") == 1);
assert(__CPROVER_get_field(&(u.x1), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2.y1), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y2), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2.y3), "field2") == 0);
// Not allowed: assert(__CPROVER_get_field(u.x3, "field2") == 1);
assert(__CPROVER_get_field(&(u.x3[0]), "field2") == 0);
assert(__CPROVER_get_field(&(u.x3[1]), "field2") == 1);
assert(__CPROVER_get_field(&(u.x3[2]), "field2") == 1);
__CPROVER_set_field(&(u.x2.y2), "field2", 0);
assert(__CPROVER_get_field(&u, "field2") == 1);
assert(__CPROVER_get_field(&(u.x1), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y1), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y2), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y3), "field2") == 0);
// Not allowed: assert(__CPROVER_get_field(u.x3, "field2") == 7);
assert(__CPROVER_get_field(&(u.x3[0]), "field2") == 0);
assert(__CPROVER_get_field(&(u.x3[1]), "field2") == 1);
assert(__CPROVER_get_field(&(u.x3[2]), "field2") == 0);
__CPROVER_set_field(&(u.x2.y3), "field2", 1);
assert(__CPROVER_get_field(&u, "field2") == 1);
assert(__CPROVER_get_field(&(u.x1), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2), "field2") == 1);
assert(__CPROVER_get_field(&(u.x2.y1), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y2), "field2") == 0);
assert(__CPROVER_get_field(&(u.x2.y3), "field2") == 1);
// Not allowed: assert(__CPROVER_get_field(u.x3, "field2") == 7);
assert(__CPROVER_get_field(&(u.x3[0]), "field2") == 0);
assert(__CPROVER_get_field(&(u.x3[1]), "field2") == 1);
assert(__CPROVER_get_field(&(u.x3[2]), "field2") == 0);
}
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