Trace number 1522266

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
iPAWS 2009-03-22SAT 0.215966 0.215974

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 

0.19/0.21	s SATISFIABLE
0.19/0.21	v -1 2 -3 -4 -5 6 -7 8 9 -10 -11 -12 13 14 15 -16 17 18 19 20 21 -22 -23 24 25 -26 27 -28 29 -30 31 -32 33 -34 -35 36 -37 -38 39 40 41 42 43 44 45 46 47 -48 -49 50 -51 52 53 54 -55 56 57 58 59 60 61 62 -63 -64 65 66 67 -68 69 70 -71 72 -73 -74 75 -76 77 78 -79 80 81 -82 -83 84 -85 86 87 88 -89 -90 -91 92 93 -94 95 -96 97 98 99 -100 -101 -102 -103 104 -105 -106 107 -108 -109 110 -111 -112 -113 -114 115 116 -117 118 -119 120 121 -122 123 124 125 126 127 -128 129 -130 131 -132 -133 134 -135 136 -137 -138 -139 140 -141 -142 143 144 145 146 -147 -148 -149 150 -151 -152 153 -154 155 156 157 -158 -159 -160 -161 -162 -163 164 -165 -166 -167 -168 169 170 171 -172 -173 174 -175 176 -177 -178 179 180 181 182 183 -184 185 186 -187 188 189 190 -191 192 193 -194 -195 196 -197 198 199 200 201 -202 203 -204 205 206 207 208 209 210 211 212 -213 -214 215 216 -217 218 219 220 -221 222 223 -224 -225 -226 227 -228 -229 -230 231 232 233 -234 -235 -236 237 238 -239 -240 -241 -242 -243 -244 -245 -246 -247 248 249 250 251 252 -253 254 -255 -256 -257 258 -259 260 261 -262 -263 -264 -265 -266 267 -268 -269 -270 -271 -272 -273 274 -275 276 -277 278 -279 -280 -281 -282 -283 -284 285 -286 287 -288 289 -290 291 -292 -293 -294 -295 -296 297 298 299 -300 301 302 -303 -304 -305 -306 307 -308 309 -310 311 312 -313 314 -315 316 317 318 -319 -320 -321 322 323 -324 -325 326 327 328 329 -330 331 -332 333 -334 335 336 337 -338 -339 -340 -341 -342 343 344 345 -346 -347 -348 349 350 351 352 353 -354 -355 -356 -357 358 -359 -360 -361 362 -363 -364 -365 -366 -367 368 369 -370 371 -372 -373 -374 375 376 -377 -378 379 -380 -381 382 -383 -384 385 -386 -387 -388 -389 -390 -391 -392 393 394 395 -396 397 398 -399 -400 -401 402 403 -404 -405 406 407 -408 409 -410 411 -412 -413 -414 415 416 -417 418 -419 -420 -421 -422 -423 424 425 -426 -427 -428 -429 430 431 -432 433 -434 435 436 437 438 -439 -440 441 -442 443 444 -445 446 447 -448 -449 -450 -451 -452 453 -454 -455 -456 -457 -458 -459 460 461 -462 -463 -464 -465 -466 467 -468 -469 470 471 -472 473 474 -475 -476 477 478 479 -480 481 482 483 484 485 486 487 -488 489 -490 -491 -492 -493 494 -495 496 -497 498 499 -500 501 -502 -503 504 -505 -506 507 508 -509 -510 -511 512 -513 514 515 516 -517 -518 -519 -520 0
0.19/0.21	c input file instance-1522266-1238573369.cnf, flips 156695

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-1522266-1238573369/watcher-1522266-1238573369 -o /tmp/evaluation-result-1522266-1238573369/solver-1522266-1238573369 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1522266-1238573369.cnf 1416836652 

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: 1.99 1.85 1.45 3/68 9443
/proc/meminfo: memFree=971048/2055920 swapFree=4176188/4192956
[pid=9443] ppid=9441 vsize=335916 CPUtime=0
/proc/9443/stat : 9443 (iPAWS) R 9441 9443 9313 0 -1 4194304 486 0 0 0 0 0 0 0 18 0 1 0 1129998576 343977984 470 1992294400 134512640 135114423 4294956208 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/9443/statm: 83979 470 54 146 0 83831 0

[startup+0.0086591 s]
/proc/loadavg: 1.99 1.85 1.45 3/68 9443
/proc/meminfo: memFree=971048/2055920 swapFree=4176188/4192956
[pid=9443] ppid=9441 vsize=335916 CPUtime=0
/proc/9443/stat : 9443 (iPAWS) R 9441 9443 9313 0 -1 4194304 884 0 0 0 0 0 0 0 18 0 1 0 1129998576 343977984 868 1992294400 134512640 135114423 4294956208 18446744073709551615 134534914 0 0 4096 0 0 0 0 17 1 0 0
/proc/9443/statm: 83979 869 55 146 0 83831 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 335916

[startup+0.101668 s]
/proc/loadavg: 1.99 1.85 1.45 3/68 9443
/proc/meminfo: memFree=971048/2055920 swapFree=4176188/4192956
[pid=9443] ppid=9441 vsize=335916 CPUtime=0.09
/proc/9443/stat : 9443 (iPAWS) R 9441 9443 9313 0 -1 4194304 933 0 0 0 9 0 0 0 18 0 1 0 1129998576 343977984 917 1992294400 134512640 135114423 4294956208 18446744073709551615 134515605 0 0 4096 0 0 0 0 17 1 0 0
/proc/9443/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

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

[startup+0.202679 s]
/proc/loadavg: 1.99 1.85 1.45 3/68 9443
/proc/meminfo: memFree=971048/2055920 swapFree=4176188/4192956
[pid=9443] ppid=9441 vsize=335916 CPUtime=0.19
/proc/9443/stat : 9443 (iPAWS) R 9441 9443 9313 0 -1 4194304 933 0 0 0 19 0 0 0 18 0 1 0 1129998576 343977984 917 1992294400 134512640 135114423 4294956208 18446744073709551615 134516700 0 0 4096 0 0 0 0 17 1 0 0
/proc/9443/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 0.215974
CPU time (s): 0.215966
CPU user time (s): 0.212967
CPU system time (s): 0.002999
CPU usage (%): 99.9963
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.212967
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= 941
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= 2
involuntary context switches= 1

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node59 at 2009-04-01 10:09:29
IDJOB=1522266
IDBENCH=70661
IDSOLVER=516
FILE ID=node59/1522266-1238573369
PBS_JOBID= 9062189
Free space on /tmp= 66248 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S2087271472-092.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522266-1238573369/watcher-1522266-1238573369 -o /tmp/evaluation-result-1522266-1238573369/solver-1522266-1238573369 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1522266-1238573369.cnf 1416836652

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

MD5SUM BENCH= 0b959375755b7be8d72e0ee6a403232e
RANDOM SEED=1416836652

node59.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		: 3000.209
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		: 3000.209
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:        971528 kB
Buffers:        112156 kB
Cached:         863076 kB
SwapCached:      10156 kB
Active:         225216 kB
Inactive:       761584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        971528 kB
SwapTotal:     4192956 kB
SwapFree:      4176188 kB
Dirty:             716 kB
Writeback:           0 kB
Mapped:          16732 kB
Slab:            83184 kB
Committed_AS:  3138220 kB
PageTables:       1720 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= 66248 MiB
End job on node59 at 2009-04-01 10:09:29