[----------------------------------registers-----------------------------------]
RAX: 0x7ff9d401e010 --> 0x0 
RBX: 0x7ffff7f48d00 --> 0x1 
RCX: 0x7ff8ab58c800 --> 0x7ffff7ea5d80 --> 0x2 
RDX: 0x7ffff3ac47d8 --> 0x1 
RSI: 0x25152303 
RDI: 0xfff3a803c00 --> 0x0 
RBP: 0x7473078c 
RSP: 0x7fffffffcf20 --> 0x7ffff3ac47d8 --> 0x1 
RIP: 0x7ffff28a8a64 (<_Unpickler_MemoPut+1668>:	add    r11,0x20)
R8 : 0xfff3a803bff --> 0x0 
R9 : 0xfff3a803c01 --> 0x0 
R10: 0xffffefe91a3 --> 0x0 
R11: 0x128a917f8 --> 0x0 
R12: 0xfff156b1922 --> 0x0 
R13: 0xe8e60f18 --> 0x0 
R14: 0x7ffff7f48d18 --> 0x7ff8ab58c800 --> 0x7ffff7ea5d80 --> 0x2 
R15: 0xfff3a803c02 --> 0x0
EFLAGS: 0x216 (carry PARITY ADJUST zero sign trap INTERRUPT direction overflow)
[-------------------------------------code-------------------------------------]
   0x7ffff28a8a52 <_Unpickler_MemoPut+1650>:	cmp    BYTE PTR [r15+0x7fff8000],0x0
   0x7ffff28a8a5a <_Unpickler_MemoPut+1658>:	jne    0x7ffff28a8ae1 <_Unpickler_MemoPut+1793>
   0x7ffff28a8a60 <_Unpickler_MemoPut+1664>:	add    rsi,0x4
=> 0x7ffff28a8a64 <_Unpickler_MemoPut+1668>:	add    r11,0x20
   0x7ffff28a8a68 <_Unpickler_MemoPut+1672>:	cmp    BYTE PTR [r10+0x7fff8000],0x0
   0x7ffff28a8a70 <_Unpickler_MemoPut+1680>:	mov    QWORD PTR [rax],0x0
   0x7ffff28a8a77 <_Unpickler_MemoPut+1687>:	je     0x7ffff28a896d <_Unpickler_MemoPut+1421>
   0x7ffff28a8a7d <_Unpickler_MemoPut+1693>:	nop    DWORD PTR [rax]
[------------------------------------stack-------------------------------------]
0000| 0x7fffffffcf20 --> 0x7ffff3ac47d8 --> 0x1 
0008| 0x7fffffffcf28 --> 0xffffefe91a3 --> 0x0 
0016| 0x7fffffffcf30 --> 0x7ffff7f48da8 --> 0x20 (' ')
0024| 0x7fffffffcf38 --> 0x7ffff7f48d00 --> 0x1 
0032| 0x7fffffffcf40 --> 0xffffffffa00 --> 0x0 
0040| 0x7fffffffcf48 --> 0x0 
0048| 0x7fffffffcf50 --> 0x7ffff7f48da0 --> 0x28 ('(')
0056| 0x7fffffffcf58 --> 0x7ffff7f48da8 --> 0x20 (' ')
[------------------------------------------------------------------------------]
Legend: code, data, rodata, value
0x00007ffff28a8a64	1392	    for (i = self->memo_size; i < new_size; i++)
gdb-peda$ p new_size
$5 = 0xe8e60f18
gdb-peda$ p self->memo_size
$6 = 0x20
gdb-peda$ p i


.....
for (i = self->memo_size; i < new_size; i++)
        self->memo[i] = NULL;
.....