ハッシュ衝突をさせたい

上手くいかないコード.py

"""
static Py_ssize_t
find_empty_slot(PyDictKeysObject *keys, Py_hash_t hash)
{
    assert(keys != NULL);

    const size_t mask = DK_MASK(keys);
    size_t i = hash & mask;
    Py_ssize_t ix = dictkeys_get_index(keys, i);

    printf("find_empty_slot %lx %lx %lx\n", mask, i, ix);
    printf("find_empty_slot inputhash %lx\n", hash);
    for (size_t perturb = hash; ix >= 0;) {
        perturb >>= PERTURB_SHIFT;
        i = (i*5 + perturb + 1) & mask;
        printf("loopb  key:%lx per:%lx i:%lx ix:%lx\n", keys, perturb,i , ix);
        ix = dictkeys_get_index(keys, i);
        printf("loopa  key:%lx per:%lx i:%lx ix:%lx\n", keys, perturb,i , ix);
    }
    printf("find_empty_slot RES %lx %lx %lx\n", mask,i , ix);
    return i;
}
"""
PERTURB_SHIFT = 5
used = dict()
vala = 10
valb = (10<<10)*5-1
nn = 5
data = []
datb = []


hash = vala
mask = 2**8 - 1
i = hash & mask
perturb = hash

magic = [2,52,460,511,867]

for loop in range(nn):
    perturb >>= PERTURB_SHIFT
    i = (i * 5 + perturb + 1) & mask
    print(">", loop, hex(i))
    data.append(hex(i))


print("-------------------")
res = []
for hashcore in range(10000000):
    for hashdiff in range(1):
        hash = (hashcore << 0) + hashdiff
        datb = []
        i = hash & mask
        perturb = hash
        for loop in range(nn):
            perturb >>= PERTURB_SHIFT
            i = (i * 5 + perturb + 1) & mask
            #print(">", loop, hex(i))
            datb.append(hex(i))
        if data == datb:
            print(hashcore, hashdiff)
            print(hash,"\t", hex(hash), "{:040b}".format(hash),"{:010b}".format(hash<<30>>30 & 2**12-1))
            res.append(hash)
print(res)
import sys
sys.exit(1)
print("-------------------")
res = []
for hashcore in range(10000):
    hash =  2 ** 125 -1 + hashcore
    datb = []
    i = hash & mask
    perturb = hash
    for loop in range(nn):
        perturb >>= PERTURB_SHIFT
        i = (i * 5 + perturb + 1) & mask
        #print(">", loop, hex(i))
        datb.append(hex(i))
    if data == datb:
        print(hash,"\t", hex(hash), "{:040b}".format(hash),"{:010b}".format(hash<<30>>30 & 2**12-1))
        res.append(hash)

#print(res)
d = dict()
print(res)
print("res")
print("--")
for i in range(len(res )- 1):
    print(res[i+1] - res[i+0])
for x in res:
    d[x] = True
print(d)
print("--")