Hashcat restore file

[johnya]

Hi!

I'm trying to create a Python script to manage Hashcat.

My script launches Hashcat (with subprocess.Popen) from another directory in Windows.
So something like that :
C:/hashcat/hashcat64.exe --session "foo" -m 0 --potfile-path "foo.pot" -o result.txt hashes.txt...

I can't change restore file path with Hashcat so it stays in Hashcat directory (C:\hashcat\).

The Hashcat status just before I kill the process :

Code:

Session.Name...: foo
Status.........: Running
Input.Mode.....: Mask (?a?a?a?a?a) [5]
Hash.Target....: File (hashes.txt)
Hash.Type......: MD5
Time.Started...: Mon Oct 10 14:03:45 2016 (39 secs)
Time.Estimated.: Mon Oct 10 14:07:18 2016 (3 mins, 3 secs), but limit exceeded
Speed.Dev.#1...: 26629.7 kH/s (1.77ms)
Recovered......: 7/2933 (0.24%) Digests, 0/1 (0.00%) Salts
Recovered/Time.: CUR:N/A,N/A,N/A AVG:0.00,0.00,0.00 (Min,Hour,Day)
Progress.......: 2862070510/7737809375 (36.99%)
Rejected.......: 0/2862070510 (0.00%)
[b]Restore.Point..: 30127058/81450625 (36.99%)[/b]

I try to relaunch it with :
C:/hashcat/hashcat64.exe --session "foo" --restore

and the restore point jump from 36.99% to 23.69%:

Code:

[b]INFO: Changing current working directory to the path found within the .restore file: 'C:\foo\bar\'[/b]

hashcat (v3.10) starting in restore-mode...



Counting lines in hashes.txt
                         
Parsed Hashes: 0/2933 (0.00%)
                         
Parsed Hashes: 2933/2933 (100.00%)
                               
Removing duplicate hashes...
                         
Comparing hashes with potfile entries...
                                     
Structuring salts for cracking task...
                                   
Generating bitmap tables with 16 bits...
                                     
OpenCL Platform #1: Intel(R) Corporation

========================================

- Device #1: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz, 1023/4095 MB allocatable, 2MCU



Hashes: 2933 hashes; 2933 unique digests, 1 unique salts

Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates

Applicable Optimizers:

* Zero-Byte

* Precompute-Init

* Precompute-Merkle-Demgard

* Meet-In-The-Middle

* Early-Skip

* Not-Salted

* Not-Iterated

* Single-Salt

* Brute-Force

* Raw-Hash

Watchdog: Temperature abort trigger disabled

Watchdog: Temperature retain trigger disabled



Initializing device kernels and memory...
                                     
INFO: Removed 7 hashes found in pot file


                                                       

Session.Name...: foo
Status.........: Running
Input.Mode.....: Mask (?a?a?a?a?a) [5]
Hash.Target....: File (hashes.txt)
Hash.Type......: MD5
Time.Started...: Mon Oct 10 14:04:18 2016 (4 secs)
Time.Estimated.: Mon Oct 10 14:07:44 2016 (3 mins, 22 secs), but limit exceeded
Speed.Dev.#1...: 29210.9 kH/s (1.49ms)
Recovered......: 7/2933 (0.24%) Digests, 0/1 (0.00%) Salts
Recovered/Time.: CUR:N/A,N/A,N/A AVG:0.00,0.00,0.00 (Min,Hour,Day)
Progress.......: 1833099480/7737809375 (23.69%)
Rejected.......: 0/1833099480 (0.00%)
[b]Restore.Point..: 19295784/81450625 (23.69%)[/b]

Someone have an explanation why I can't restore in the same point?
And why I can't change restore file path?

Thank you