int main() {
char buf[4];
klee_make_symbolic(buf, sizeof buf);
klee_prefer_cex(buf, buf[0]=='H');
klee_prefer_cex(buf, buf[1]=='i');
klee_prefer_cex(buf, buf[2]=='\0');
return 0;
}
int main() {
char buf[4];
klee_make_symbolic(buf, sizeof buf, "buf");
// CHECK: Hi\x00\x00
klee_prefer_cex(buf, buf[0]=='H');
klee_prefer_cex(buf, buf[1]=='i');
klee_prefer_cex(buf, buf[2]=='\0');
klee_prefer_cex(buf, buf[3]=='\0');
return 0;
}
int main() {
int x = klee_range(0, 256, "x");
if (x == 17) {
f0();
} else if (x == 32) {
f1();
} else if (x == 99) {
f2();
} else {
klee_prefer_cex(&x, x == 0);
f3();
}
return 0;
}
static void __create_new_dfile(exe_disk_file_t *dfile, unsigned size,
const char *name, struct stat64 *defaults) {
struct stat64 *s = malloc(sizeof(*s));
const char *sp;
char sname[64];
for (sp=name; *sp; ++sp)
sname[sp-name] = *sp;
memcpy(&sname[sp-name], "-stat", 6);
assert(size);
dfile->size = size;
dfile->contents = malloc(dfile->size);
klee_make_symbolic(dfile->contents, dfile->size, name);
klee_make_symbolic(s, sizeof(*s), sname);
/* For broken tests */
if (!klee_is_symbolic(s->st_ino) &&
(s->st_ino & 0x7FFFFFFF) == 0)
s->st_ino = defaults->st_ino;
/* Important since we copy this out through getdents, and readdir
will otherwise skip this entry. For same reason need to make sure
it fits in low bits. */
klee_assume((s->st_ino & 0x7FFFFFFF) != 0);
/* uclibc opendir uses this as its buffer size, try to keep
reasonable. */
klee_assume((s->st_blksize & ~0xFFFF) == 0);
klee_prefer_cex(s, !(s->st_mode & ~(S_IFMT | 0777)));
klee_prefer_cex(s, s->st_dev == defaults->st_dev);
klee_prefer_cex(s, s->st_rdev == defaults->st_rdev);
klee_prefer_cex(s, (s->st_mode&0700) == 0600);
klee_prefer_cex(s, (s->st_mode&0070) == 0020);
klee_prefer_cex(s, (s->st_mode&0007) == 0002);
klee_prefer_cex(s, (s->st_mode&S_IFMT) == S_IFREG);
klee_prefer_cex(s, s->st_nlink == 1);
klee_prefer_cex(s, s->st_uid == defaults->st_uid);
klee_prefer_cex(s, s->st_gid == defaults->st_gid);
klee_prefer_cex(s, s->st_blksize == 4096);
klee_prefer_cex(s, s->st_atime == defaults->st_atime);
klee_prefer_cex(s, s->st_mtime == defaults->st_mtime);
klee_prefer_cex(s, s->st_ctime == defaults->st_ctime);
s->st_size = dfile->size;
s->st_blocks = 8;
dfile->stat = s;
}