Stderr output

<core_client_version>8.2.4</core_client_version>
<![CDATA[
<message>
The operating system cannot run (null).
 (0xc3) - exit code 195 (0xc3)</message>
<stderr_txt>
2026-09-13 09:44:47 (14264): wrapper (7.24.26018): starting
2026-09-13 09:44:47 (14264): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-13 09:44:47 (14264): wrapper: created child process 4832
mfaktc v0.24.0 (64-bit build)

Compile-time options
  THREADS_PER_BLOCK         256
  SIEVE_SIZE_LIMIT          32 kiB
  SIEVE_SIZE                193154 bits
  SIEVE_SPLIT               250
  MORE_CLASSES              enabled

Runtime options
  SievePrimes               25000
  SievePrimesAdjust         1
  SievePrimesMin            5000
  SievePrimesMax            100000
  NumStreams                3
  CPUStreams                3
  GridSize                  3
  GPU sieving               enabled
  GPUSievePrimes            82486
  GPUSieveSize              512 Mib
  GPUSieveProcessSize       16 Kib
  Checkpoints               enabled
  CheckpointDelay           60 s
  WorkFileAddDelay          600 s
  Stages                    disabled
  StopAfterFactor           bit level
  PrintMode                 compact
  Logging                   disabled
  V5UserID                  (none)
  ComputerID                (none)
  AllowSleep                yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
  LegacyResultsTxt          no
  TimeStampInResults        no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
  TimestampOnSameLine       no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default

CUDA version info
  binary compiled for CUDA  12.8
  CUDA runtime version      12.8
  CUDA driver version       12.9

CUDA device info
  name                      NVIDIA GeForce GTX 1660 SUPER
  compute capability        7.5
  max threads per block     1024
  max shared memory per MP  65536 bytes
  number of multiprocessors 22
  clock rate (CUDA cores)   1785 MHz
  memory clock rate:        7001 MHz
  memory bus width:         192 bits

Automatic parameters
  threads per grid          720896
  GPUSievePrimes (adjusted) 82486
  GPUsieve minimum exponent 1055144

running a simple self-test...
Self-test statistics
  number of tests           104
  successful tests          104

self-test PASSED!

got assignment: exp=201229169 bit_min=76 bit_max=77 (76.05 GHz-days)
Starting trial factoring M201229169 from 2^76 to 2^77 (76.05 GHz-days)
 k_min =  187740833252280
 k_max =  375481666506878
Using GPU kernel "barrett87_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
Sep 13 09:44 |    0   0.1% |  4.147   1h06m |   1650.54    82485    n.a.%
Sep 13 09:44 |    4   0.2% |  4.105   1h05m |   1667.43    82485    n.a.%
Sep 13 09:45 |    7   0.3% |  4.099   1h05m |   1669.87    82485    n.a.%
Sep 13 09:45 |   12   0.4% |  4.098   1h05m |   1670.28    82485    n.a.%
Sep 13 09:45 |   15   0.5% |  4.098   1h05m |   1670.28    82485    n.a.%
Sep 13 09:45 |   16   0.6% |  4.100   1h05m |   1669.47    82485    n.a.%
Sep 13 09:45 |   19   0.7% |  4.099   1h05m |   1669.87    82485    n.a.%
x mod p out of range!! x = 182363, p = 5823, pinv = 737841, r = 176540
Sep 13 09:45 |   27   0.8% |  2.728  43m17s |   2509.09    82485    n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-09-13 09:45:21 (14264): mfaktc-win-64.exe exited; CPU time 1.656250
2026-09-13 09:45:21 (14264): app exit status: 0x1
2026-09-13 09:45:21 (14264): called boinc_finish(195)

</stderr_txt>
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