No output file created

[SiNTEx]

I'm trying to recover some MD5 hashes but i have problem with output file, which is not being created. I'm working with oclHashcat for first time so please excuse me if there is some stupid mistake.

my command:

Code:

cudaHashcat64.exe -m 0 -a 3 --outfile=testresult.txt --outfile-format=3 hashes.txt ?a

result:

Code:

cudaHashcat v1.20 starting...

Device #1: GeForce GTX 660, 2048MB, 1097Mhz, 5MCU
Device #1: WARNING! Kernel exec timeout is not disabled, it might cause you errors of code 702
           You can disable it with a regpatch, see here: http://hashcat.net/wiki/doku.php?id=timeout_patch

Hashes: 4 hashes; 4 unique digests, 1 unique salts
Bitmaps: 8 bits, 256 entries, 0x000000ff mask, 1024 bytes
Applicable Optimizers:
* Zero-Byte
* Precompute-Init
* Precompute-Merkle-Demgard
* Meet-In-The-Middle
* Early-Skip
* Not-Salted
* Not-Iterated
* Single-Salt
* Brute-Force
* Scalar-Mode
* Raw-Hash
Watchdog: Temperature abort trigger set to 90c
Watchdog: Temperature retain trigger set to 80c
Device #1: Kernel ./kernels/4318/m0000_a3.sm_30.64.ptx
Device #1: Kernel ./kernels/4318/markov_le_v1.64.ptx
Device #1: Kernel ./kernels/4318/bzero.64.ptx


INFO: approaching final keyspace, workload adjusted


Session.Name...: cudaHashcat
Status.........: Exhausted
Input.Mode.....: Mask (?a) [1]
Hash.Target....: File (hashes.txt)
Hash.Type......: MD5
Time.Started...: 0 secs
Time.Estimated.: 0 secs
Speed.GPU.#1...:    34589 H/s
Recovered......: 1/4 (25.00%) Digests, 0/1 (0.00%) Salts
Progress.......: 95/95 (100.00%)
Skipped........: 0/95 (0.00%)
Rejected.......: 0/95 (0.00%)
HWMon.GPU.#1...:  1% Util, 38c Temp, N/A Fan

Started: Thu May 22 10:37:40 2014
Stopped: Thu May 22 10:37:41 2014