Trace number 1539644

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 0.491953 0.302373

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S2087271472-092.cnf
MD5SUM0b959375755b7be8d72e0ee6a403232e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.085986
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 

0.00/0.30	c SATzilla is building models for class 1
0.00/0.30	c run presolver SATenstein for 30 seconds ... 
0.00/0.30	c Bin: Executing SATenstein
0.00/0.30	c spawning binary file with 30 seconds ...
0.00/0.30	c child exited successfully
0.00/0.30	c SATenstein returned code 10.
0.00/0.30	s SATISFIABLE
0.00/0.30	v  -1 2 -3 -4 -5 6 -7 8 9 -10
0.00/0.30	v  -11 12 -13 14 15 -16 17 18 19 -20
0.00/0.30	v  -21 -22 -23 24 25 -26 -27 28 29 -30
0.00/0.30	v  31 -32 33 -34 -35 36 -37 -38 -39 40
0.00/0.30	v  41 -42 43 44 45 -46 -47 -48 -49 50
0.00/0.30	v  -51 52 53 -54 -55 -56 -57 -58 59 60
0.00/0.30	v  61 62 -63 -64 65 66 -67 68 69 -70
0.00/0.30	v  71 72 73 74 -75 -76 77 78 79 80
0.00/0.30	v  -81 -82 -83 84 85 86 87 88 89 -90
0.00/0.30	v  -91 92 -93 -94 -95 96 97 98 99 100
0.00/0.30	v  -101 102 -103 -104 -105 106 107 108 -109 110
0.00/0.30	v  -111 -112 -113 -114 115 116 117 118 119 -120
0.00/0.30	v  121 -122 123 124 125 126 -127 -128 -129 130
0.00/0.30	v  131 -132 -133 134 -135 136 -137 138 -139 140
0.00/0.30	v  -141 142 -143 144 -145 146 147 -148 -149 150
0.00/0.30	v  -151 152 -153 -154 155 156 -157 -158 -159 -160
0.00/0.30	v  161 -162 -163 -164 165 -166 -167 -168 169 -170
0.00/0.30	v  171 -172 -173 174 -175 176 177 178 179 -180
0.00/0.30	v  181 182 183 -184 185 186 -187 188 189 190
0.00/0.30	v  -191 -192 -193 -194 195 196 -197 198 199 200
0.00/0.30	v  -201 202 203 204 205 -206 207 -208 209 210
0.00/0.30	v  211 212 213 -214 215 216 -217 218 219 220
0.00/0.30	v  -221 -222 223 224 -225 -226 227 -228 -229 230
0.00/0.30	v  231 232 233 -234 235 -236 237 -238 -239 240
0.00/0.30	v  -241 -242 -243 -244 -245 -246 -247 -248 -249 250
0.00/0.30	v  251 -252 -253 254 -255 256 257 -258 -259 -260
0.00/0.30	v  -261 -262 -263 -264 265 266 -267 -268 -269 270
0.00/0.30	v  -271 -272 -273 274 -275 276 277 278 -279 -280
0.00/0.30	v  -281 -282 -283 284 285 -286 287 -288 289 290
0.00/0.30	v  291 -292 -293 -294 -295 -296 -297 298 -299 -300
0.00/0.30	v  301 302 -303 -304 -305 306 -307 -308 309 -310
0.00/0.30	v  -311 312 -313 314 -315 316 317 318 -319 -320
0.00/0.30	v  -321 322 323 324 325 326 -327 -328 329 -330
0.00/0.30	v  -331 -332 -333 -334 335 336 -337 -338 -339 -340
0.00/0.30	v  -341 -342 343 344 345 346 -347 -348 349 350
0.00/0.30	v  351 352 353 354 355 -356 -357 358 359 360
0.00/0.30	v  -361 362 363 364 -365 -366 367 368 -369 -370
0.00/0.30	v  371 -372 -373 -374 -375 376 -377 -378 379 -380
0.00/0.30	v  -381 382 -383 -384 385 386 387 -388 -389 -390
0.00/0.30	v  -391 -392 393 394 -395 -396 397 398 -399 400
0.00/0.30	v  -401 -402 403 404 405 406 407 -408 409 410
0.00/0.30	v  411 -412 -413 -414 -415 -416 417 418 -419 420
0.00/0.30	v  -421 422 -423 -424 425 426 -427 -428 -429 430
0.00/0.30	v  -431 -432 433 -434 435 -436 437 438 -439 440
0.00/0.30	v  441 442 443 444 -445 446 447 448 449 -450
0.00/0.30	v  -451 -452 453 -454 -455 -456 457 -458 -459 -460
0.00/0.30	v  461 -462 463 -464 465 466 -467 468 -469 470
0.00/0.30	v  471 472 -473 474 475 -476 -477 478 479 -480
0.00/0.30	v  481 -482 483 484 485 486 -487 488 -489 -490
0.00/0.30	v  491 492 -493 494 495 -496 497 -498 499 500
0.00/0.30	v  -501 502 -503 504 -505 -506 507 -508 509 510
0.00/0.30	v  -511 -512 513 -514 -515 516 517 518 -519 -520
0.00/0.30	v  0
0.00/0.30	c SATZILLA_TIME=0.290000

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-1539644-1238573418/watcher-1539644-1238573418 -o /tmp/evaluation-result-1539644-1238573418/solver-1539644-1238573418 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1539644-1238573418.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: 2.19 2.20 1.68 3/64 18380
/proc/meminfo: memFree=1471784/2055920 swapFree=4178500/4192956
[pid=18380] ppid=18378 vsize=2056 CPUtime=0
/proc/18380/stat : 18380 (SATzilla2009_R) S 18378 18380 17842 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130004121 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18380/statm: 514 112 96 399 0 111 0
[pid=18381] ppid=18380 vsize=6508 CPUtime=0
/proc/18381/stat : 18381 (SATenstein) R 18380 18380 17842 0 -1 4194304 281 0 0 0 0 0 0 0 19 0 1 0 1130004121 6664192 262 1992294400 134512640 134854740 4294955344 18446744073709551615 134782313 0 0 8392704 0 0 0 0 17 0 0 0
/proc/18381/statm: 1627 262 151 83 0 1188 0

[startup+0.066782 s]
/proc/loadavg: 2.19 2.20 1.68 3/64 18380
/proc/meminfo: memFree=1471784/2055920 swapFree=4178500/4192956
[pid=18380] ppid=18378 vsize=2056 CPUtime=0
/proc/18380/stat : 18380 (SATzilla2009_R) S 18378 18380 17842 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130004121 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18380/statm: 514 112 96 399 0 111 0
[pid=18381] ppid=18380 vsize=6504 CPUtime=0.06
/proc/18381/stat : 18381 (SATenstein) R 18380 18380 17842 0 -1 4194304 377 0 0 0 6 0 0 0 19 0 1 0 1130004121 6660096 352 1992294400 134512640 134854740 4294955344 18446744073709551615 134760012 0 0 8392704 0 0 0 0 17 0 0 0
/proc/18381/statm: 1626 352 174 83 0 1187 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 8560

[startup+0.101785 s]
/proc/loadavg: 2.19 2.20 1.68 3/64 18380
/proc/meminfo: memFree=1471784/2055920 swapFree=4178500/4192956
[pid=18380] ppid=18378 vsize=2056 CPUtime=0
/proc/18380/stat : 18380 (SATzilla2009_R) S 18378 18380 17842 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130004121 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18380/statm: 514 112 96 399 0 111 0
[pid=18381] ppid=18380 vsize=6504 CPUtime=0.09
/proc/18381/stat : 18381 (SATenstein) R 18380 18380 17842 0 -1 4194304 377 0 0 0 9 0 0 0 19 0 1 0 1130004121 6660096 352 1992294400 134512640 134854740 4294955344 18446744073709551615 134760025 0 0 8392704 0 0 0 0 17 0 0 0
/proc/18381/statm: 1626 352 174 83 0 1187 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8560

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (0.19 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (0.19 s) to the 'lost time'.

[startup+0.201796 s]
/proc/loadavg: 2.19 2.20 1.68 3/64 18380
/proc/meminfo: memFree=1471784/2055920 swapFree=4178500/4192956
[pid=18380] ppid=18378 vsize=2056 CPUtime=0
/proc/18380/stat : 18380 (SATzilla2009_R) S 18378 18380 17842 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130004121 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18380/statm: 514 112 96 399 0 111 0
[pid=18381] ppid=18380 vsize=6504 CPUtime=0.19
/proc/18381/stat : 18381 (SATenstein) R 18380 18380 17842 0 -1 4194304 377 0 0 0 19 0 0 0 20 0 1 0 1130004121 6660096 352 1992294400 134512640 134854740 4294955344 18446744073709551615 134760012 0 0 8392704 0 0 0 0 17 0 0 0
/proc/18381/statm: 1626 352 174 83 0 1187 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 8560

[startup+0.301808 s]
/proc/loadavg: 2.19 2.20 1.68 3/64 18380
/proc/meminfo: memFree=1471784/2055920 swapFree=4178500/4192956
[pid=18380] ppid=18378 vsize=2056 CPUtime=0
/proc/18380/stat : 18380 (SATzilla2009_R) S 18378 18380 17842 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130004121 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18380/statm: 514 112 96 399 0 111 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2056
#
############


[startup+0.301808 s]
/proc/loadavg: 2.19 2.20 1.68 3/64 18380
/proc/meminfo: memFree=1471784/2055920 swapFree=4178500/4192956
[pid=18380] ppid=18378 vsize=2056 CPUtime=0
/proc/18380/stat : 18380 (SATzilla2009_R) S 18378 18380 17842 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130004121 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18380/statm: 514 112 96 399 0 111 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2056

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

Child status: 10

# WARNING:
# The CPU time of some children was not reported to their father
# (probably because of a missing or aborted wait()).
# This 'lost CPU time' is added to the watched process CPU time.
#  lost CPU time (s): 0.19
#  lost CPU user time (s): 0.19
#  lost CPU system time (s): 0

Real time (s): 0.302373
CPU time (s): 0.491953
CPU user time (s): 0.488954
CPU system time (s): 0.002999
CPU usage (%): 162.697
Max. virtual memory (cumulated for all children) (KiB): 8560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.298954
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= 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= 3

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node62 at 2009-04-01 10:10:18
IDJOB=1539644
IDBENCH=70661
IDSOLVER=526
FILE ID=node62/1539644-1238573418
PBS_JOBID= 9062175
Free space on /tmp= 66352 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S2087271472-092.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539644-1238573418/watcher-1539644-1238573418 -o /tmp/evaluation-result-1539644-1238573418/solver-1539644-1238573418 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1539644-1238573418.cnf

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

MD5SUM BENCH= 0b959375755b7be8d72e0ee6a403232e
RANDOM SEED=379270865

node62.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		: 3000.232
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		: 3000.232
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:       1472328 kB
Buffers:        101884 kB
Cached:         381392 kB
SwapCached:       7616 kB
Active:         251152 kB
Inactive:       241440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1472328 kB
SwapTotal:     4192956 kB
SwapFree:      4178500 kB
Dirty:           31484 kB
Writeback:           0 kB
Mapped:          15016 kB
Slab:            76852 kB
Committed_AS:  2895896 kB
PageTables:       1460 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= 66320 MiB
End job on node62 at 2009-04-01 10:10:18