Trace number 1539821

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SATzilla2009_R 2009-03-22SAT 0.018996 0.0194299

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S554804223-012.cnf
MD5SUMfb88daaef532d2aea4a43cab65510e36
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c SATzilla is building models for class 1
0.00/0.01	c run presolver SATenstein for 30 seconds ... 
0.00/0.01	c Bin: Executing SATenstein
0.00/0.01	c spawning binary file with 30 seconds ...
0.00/0.01	c child exited successfully
0.00/0.01	c SATenstein returned code 10.
0.00/0.01	s SATISFIABLE
0.00/0.01	v  1 2 3 4 5 -6 7 -8 -9 10
0.00/0.01	v  -11 -12 -13 14 -15 16 -17 -18 -19 20
0.00/0.01	v  -21 -22 -23 24 25 -26 27 28 -29 -30
0.00/0.01	v  31 32 33 34 -35 36 -37 38 39 40
0.00/0.01	v  -41 -42 -43 44 45 -46 -47 48 49 -50
0.00/0.01	v  51 -52 53 54 -55 -56 -57 -58 59 60
0.00/0.01	v  61 62 -63 -64 65 66 67 -68 -69 -70
0.00/0.01	v  71 72 -73 -74 -75 76 -77 -78 79 80
0.00/0.01	v  81 -82 -83 -84 -85 86 -87 88 -89 -90
0.00/0.01	v  -91 92 -93 94 -95 -96 -97 98 -99 100
0.00/0.01	v  -101 102 -103 104 105 -106 107 -108 -109 110
0.00/0.01	v  111 112 -113 114 115 116 -117 118 -119 -120
0.00/0.01	v  -121 -122 -123 -124 125 -126 -127 -128 129 -130
0.00/0.01	v  -131 -132 133 -134 -135 -136 -137 -138 139 -140
0.00/0.01	v  141 -142 143 144 145 146 147 148 -149 150
0.00/0.01	v  -151 -152 -153 -154 -155 156 -157 158 -159 -160
0.00/0.01	v  161 -162 163 164 165 166 -167 -168 169 -170
0.00/0.01	v  171 172 173 174 -175 176 -177 178 -179 180
0.00/0.01	v  -181 -182 -183 -184 -185 -186 -187 188 189 -190
0.00/0.01	v  -191 -192 193 -194 -195 -196 -197 198 199 -200
0.00/0.01	v  -201 -202 -203 204 -205 -206 -207 -208 209 210
0.00/0.01	v  211 -212 -213 214 -215 -216 -217 218 219 220
0.00/0.01	v  221 222 -223 -224 -225 -226 227 228 -229 -230
0.00/0.01	v  -231 232 -233 234 -235 236 237 238 -239 240
0.00/0.01	v  241 -242 -243 244 -245 -246 -247 248 -249 -250
0.00/0.01	v  251 -252 -253 254 255 -256 -257 -258 259 260
0.00/0.01	v  -261 262 263 -264 265 -266 267 268 -269 270
0.00/0.01	v  -271 -272 -273 274 275 -276 277 278 -279 -280
0.00/0.01	v  -281 282 283 284 -285 286 -287 -288 -289 290
0.00/0.01	v  -291 292 -293 294 295 -296 -297 298 -299 300
0.00/0.01	v  301 302 303 304 -305 -306 307 308 -309 310
0.00/0.01	v  311 -312 -313 -314 -315 316 -317 -318 -319 320
0.00/0.01	v  321 322 323 324 -325 -326 -327 -328 -329 330
0.00/0.01	v  331 -332 -333 334 335 -336 -337 338 -339 340
0.00/0.01	v  -341 342 343 344 -345 -346 -347 -348 -349 -350
0.00/0.01	v  -351 352 -353 -354 355 -356 -357 358 -359 -360
0.00/0.01	v  -361 -362 -363 364 365 -366 -367 -368 -369 370
0.00/0.01	v  371 -372 373 374 375 376 377 -378 -379 380
0.00/0.01	v  -381 -382 -383 384 385 -386 -387 -388 389 390
0.00/0.01	v  391 392 393 -394 -395 -396 397 -398 399 -400
0.00/0.01	v  -401 402 403 404 -405 406 407 -408 -409 -410
0.00/0.01	v  -411 -412 413 414 -415 -416 -417 418 -419 420
0.00/0.01	v  -421 -422 -423 -424 425 426 427 -428 429 -430
0.00/0.01	v  431 -432 433 434 435 -436 437 438 -439 440
0.00/0.01	v  -441 442 443 -444 -445 446 447 448 449 450
0.00/0.01	v  451 -452 453 454 -455 -456 457 458 -459 -460
0.00/0.01	v  461 -462 -463 -464 -465 -466 467 -468 -469 470
0.00/0.01	v  471 472 473 -474 475 476 477 -478 -479 -480
0.00/0.01	v  0
0.00/0.01	c SATZILLA_TIME=0.010000

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1539821-1238591326/watcher-1539821-1238591326 -o /tmp/evaluation-result-1539821-1238591326/solver-1539821-1238591326 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1539821-1238591326.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.12 1.94 1.59 3/76 7643
/proc/meminfo: memFree=1321856/2055920 swapFree=4127460/4192956
[pid=7643] ppid=7641 vsize=2056 CPUtime=0
/proc/7643/stat : 7643 (SATzilla2009_R) R 7641 7643 7327 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1131793561 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 0 0 0
/proc/7643/statm: 514 112 96 399 0 111 0
[pid=7644] ppid=7643 vsize=6508 CPUtime=0
/proc/7644/stat : 7644 (SATenstein) R 7643 7643 7327 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 1131793561 6664192 264 1992294400 134512640 134854740 4294955344 18446744073709551615 12827015 0 0 8392704 0 0 0 0 17 0 0 0
/proc/7644/statm: 1627 265 151 83 0 1188 0

Solver just ended. Dumping a history of the last processes samples

Child status: 10
Real time (s): 0.0194299
CPU time (s): 0.018996
CPU user time (s): 0.016997
CPU system time (s): 0.001999
CPU usage (%): 97.7667
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.016997
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 540
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 4
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node63 at 2009-04-01 15:08:46
IDJOB=1539821
IDBENCH=70720
IDSOLVER=526
FILE ID=node63/1539821-1238591326
PBS_JOBID= 9062250
Free space on /tmp= 66484 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S554804223-012.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539821-1238591326/watcher-1539821-1238591326 -o /tmp/evaluation-result-1539821-1238591326/solver-1539821-1238591326 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1539821-1238591326.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= fb88daaef532d2aea4a43cab65510e36
RANDOM SEED=1594276238

node63.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.285
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.285
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1322400 kB
Buffers:         97108 kB
Cached:         495028 kB
SwapCached:      55360 kB
Active:         250672 kB
Inactive:       398364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1322400 kB
SwapTotal:     4192956 kB
SwapFree:      4127460 kB
Dirty:           31492 kB
Writeback:           0 kB
Mapped:          14612 kB
Slab:            69100 kB
Committed_AS:  3428640 kB
PageTables:       2312 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66456 MiB
End job on node63 at 2009-04-01 15:08:46