Trace number 1630665

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 0.028995 0.029195

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S809967194-078.cnf
MD5SUMed095e38b0a3e5af1f48e3823e5c45cb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
Satisfiable
(Un)Satisfiability was proved
Number of variables560
Number of clauses2380
Sum of the clauses size7140
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32380
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c SATzilla is building models for class 1
0.00/0.02	c run presolver SATenstein for 30 seconds ... 
0.00/0.02	c Bin: Executing SATenstein
0.00/0.02	c spawning binary file with 30 seconds ...
0.00/0.02	c child exited successfully
0.00/0.02	c SATenstein returned code 10.
0.00/0.02	s SATISFIABLE
0.00/0.02	v  1 -2 -3 4 5 6 7 8 -9 10
0.00/0.02	v  11 12 -13 -14 -15 16 17 -18 -19 20
0.00/0.02	v  21 -22 -23 -24 25 -26 -27 28 29 30
0.00/0.02	v  -31 -32 -33 34 35 -36 37 -38 39 40
0.00/0.02	v  41 42 43 44 45 -46 -47 48 -49 50
0.00/0.02	v  51 -52 53 54 55 56 57 58 59 60
0.00/0.02	v  61 -62 63 -64 65 -66 -67 68 69 -70
0.00/0.02	v  71 -72 73 -74 75 76 77 78 -79 -80
0.00/0.02	v  -81 82 83 84 85 -86 87 88 -89 90
0.00/0.02	v  -91 -92 -93 94 -95 -96 -97 98 -99 100
0.00/0.02	v  -101 -102 -103 104 -105 -106 107 -108 109 -110
0.00/0.02	v  -111 112 113 -114 115 116 117 -118 119 120
0.00/0.02	v  121 -122 -123 124 125 126 127 128 -129 130
0.00/0.02	v  -131 132 -133 -134 -135 -136 -137 138 139 -140
0.00/0.02	v  141 142 -143 144 -145 146 147 148 -149 150
0.00/0.02	v  -151 -152 153 154 -155 156 157 158 159 -160
0.00/0.02	v  -161 162 -163 164 -165 -166 167 168 -169 -170
0.00/0.02	v  -171 172 173 174 -175 -176 177 178 179 180
0.00/0.02	v  -181 182 183 -184 -185 186 187 -188 189 -190
0.00/0.02	v  191 192 193 -194 -195 196 -197 -198 -199 200
0.00/0.02	v  201 202 203 -204 -205 206 207 208 209 210
0.00/0.02	v  -211 -212 213 214 -215 216 -217 218 -219 220
0.00/0.02	v  221 222 -223 224 225 226 227 228 229 230
0.00/0.02	v  231 232 -233 -234 235 236 -237 -238 239 240
0.00/0.02	v  241 242 -243 244 245 246 -247 -248 249 250
0.00/0.02	v  -251 252 253 -254 255 256 257 258 259 260
0.00/0.02	v  261 -262 -263 264 -265 -266 267 268 269 270
0.00/0.02	v  -271 -272 273 -274 -275 276 -277 -278 -279 -280
0.00/0.02	v  -281 282 283 284 -285 286 -287 -288 -289 290
0.00/0.02	v  -291 -292 293 -294 295 -296 -297 -298 -299 -300
0.00/0.02	v  301 -302 303 304 305 -306 307 308 309 -310
0.00/0.02	v  311 312 -313 -314 -315 316 -317 -318 319 -320
0.00/0.02	v  -321 322 -323 324 -325 326 -327 328 -329 -330
0.00/0.02	v  -331 -332 -333 334 335 -336 -337 338 -339 340
0.00/0.02	v  341 -342 343 344 -345 346 347 -348 349 350
0.00/0.02	v  -351 -352 353 -354 -355 -356 -357 -358 -359 360
0.00/0.02	v  361 362 363 364 -365 366 367 368 369 370
0.00/0.02	v  371 372 373 -374 -375 376 -377 378 379 -380
0.00/0.02	v  381 382 -383 -384 -385 -386 387 -388 389 -390
0.00/0.02	v  391 392 -393 -394 -395 396 -397 -398 399 400
0.00/0.02	v  401 -402 -403 404 405 406 407 -408 409 410
0.00/0.02	v  -411 412 413 -414 -415 416 -417 418 419 420
0.00/0.02	v  421 -422 -423 424 -425 -426 427 -428 -429 430
0.00/0.02	v  431 -432 433 434 -435 436 437 438 -439 -440
0.00/0.02	v  441 -442 -443 -444 -445 -446 -447 448 449 -450
0.00/0.02	v  451 452 -453 -454 455 456 457 458 459 -460
0.00/0.02	v  461 -462 -463 464 -465 466 -467 -468 469 470
0.00/0.02	v  -471 -472 -473 -474 -475 -476 -477 478 479 480
0.00/0.02	v  481 482 -483 484 485 -486 -487 -488 489 490
0.00/0.02	v  491 492 -493 -494 495 496 497 498 -499 -500
0.00/0.02	v  -501 -502 -503 504 505 506 507 -508 509 -510
0.00/0.02	v  -511 512 513 514 -515 516 517 518 -519 520
0.00/0.02	v  521 522 -523 -524 525 526 527 -528 529 530
0.00/0.02	v  531 -532 -533 -534 535 -536 -537 -538 539 540
0.00/0.02	v  541 542 543 -544 -545 546 547 548 -549 -550
0.00/0.02	v  -551 552 553 554 555 -556 557 558 559 560
0.00/0.02	v  0
0.00/0.02	c SATZILLA_TIME=0.020000

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1630665-1240141554/watcher-1630665-1240141554 -o /tmp/evaluation-result-1630665-1240141554/solver-1630665-1240141554 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1630665-1240141554.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.91 0.95 0.96 3/64 28182
/proc/meminfo: memFree=628672/2055924 swapFree=4192956/4192956
[pid=28182] ppid=28180 vsize=2056 CPUtime=0
/proc/28182/stat : 28182 (SATzilla2009_R) R 28180 28182 28026 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42189751 2105344 112 1992294400 134512640 136149437 4294956240 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 0 0 0
/proc/28182/statm: 514 112 96 399 0 111 0
[pid=28183] ppid=28182 vsize=6508 CPUtime=0
/proc/28183/stat : 28183 (SATenstein) R 28182 28182 28026 0 -1 4194304 281 0 0 0 0 0 0 0 18 0 1 0 42189751 6664192 262 1992294400 134512640 134854740 4294955360 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 0 0 0
/proc/28183/statm: 1627 262 151 83 0 1188 0

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

Child status: 10
Real time (s): 0.029195
CPU time (s): 0.028995
CPU user time (s): 0.025996
CPU system time (s): 0.002999
CPU usage (%): 99.3151
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.025996
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 550
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 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node6 at 2009-04-19 13:45:54
IDJOB=1630665
IDBENCH=70681
IDSOLVER=587
FILE ID=node6/1630665-1240141554
PBS_JOBID= 9159253
Free space on /tmp= 66324 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S809967194-078.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1630665-1240141554/watcher-1630665-1240141554 -o /tmp/evaluation-result-1630665-1240141554/solver-1630665-1240141554 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1630665-1240141554.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ed095e38b0a3e5af1f48e3823e5c45cb
RANDOM SEED=1364432857

node6.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		: 3000.281
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		: 3000.281
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055924 kB
MemFree:        629216 kB
Buffers:         83400 kB
Cached:        1241036 kB
SwapCached:          0 kB
Active:         280576 kB
Inactive:      1058344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:        629216 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           31480 kB
Writeback:           0 kB
Mapped:          24204 kB
Slab:            73848 kB
Committed_AS:   175660 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66296 MiB
End job on node6 at 2009-04-19 13:45:54