Trace number 1630644

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 0.010997 0.011391

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
MD5SUM4cc7ee2f20081e6ebd36addd568f2c4e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
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  -481 -482 -483 484 485 -486 487 488 489 490
0.00/0.01	v  -491 -492 -493 -494 -495 -496 497 498 499 500
0.00/0.01	v  -501 502 503 -504 -505 -506 -507 508 -509 -510
0.00/0.01	v  -511 512 513 -514 -515 -516 517 518 519 -520
0.00/0.01	v  0
0.00/0.01	c SATZILLA_TIME=0.000000

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-1630644-1240141076/watcher-1630644-1240141076 -o /tmp/evaluation-result-1630644-1240141076/solver-1630644-1240141076 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1630644-1240141076.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: 1.00 1.00 1.00 3/64 27422
/proc/meminfo: memFree=1192048/2055920 swapFree=4192956/4192956
[pid=27422] ppid=27420 vsize=2056 CPUtime=0
/proc/27422/stat : 27422 (SATzilla2009_R) R 27420 27422 26973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42140889 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 0 0 0
/proc/27422/statm: 514 112 96 399 0 111 0
[pid=27423] ppid=27422 vsize=6508 CPUtime=0
/proc/27423/stat : 27423 (SATenstein) R 27422 27422 26973 0 -1 4194304 281 0 0 0 0 0 0 0 18 0 1 0 42140889 6664192 262 1992294400 134512640 134854740 4294955360 18446744073709551615 134782313 0 0 8392704 0 0 0 0 17 0 0 0
/proc/27423/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): 0.011391
CPU time (s): 0.010997
CPU user time (s): 0.008998
CPU system time (s): 0.001999
CPU usage (%): 96.5415
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.008998
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= 547
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 0.005999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node28 at 2009-04-19 13:37:56
IDJOB=1630644
IDBENCH=70660
IDSOLVER=587
FILE ID=node28/1630644-1240141076
PBS_JOBID= 9157892
Free space on /tmp= 66348 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1630644-1240141076/watcher-1630644-1240141076 -o /tmp/evaluation-result-1630644-1240141076/solver-1630644-1240141076 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1630644-1240141076.cnf

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

MD5SUM BENCH= 4cc7ee2f20081e6ebd36addd568f2c4e
RANDOM SEED=1672827042

node28.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		: 3000.261
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		: 3000.261
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:      2055920 kB
MemFree:       1192528 kB
Buffers:         84288 kB
Cached:         697032 kB
SwapCached:          0 kB
Active:         341548 kB
Inactive:       454524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1192528 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           31584 kB
Writeback:           0 kB
Mapped:          24432 kB
Slab:            53172 kB
Committed_AS:   218120 kB
PageTables:       1420 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= 66316 MiB
End job on node28 at 2009-04-19 13:37:56