Trace number 1522279

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 20.2359 20.2456

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S45592023-054.cnf
MD5SUM1cdf960645ef22947407473f1df63e0b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.031995
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 

20.18/20.24	s SATISFIABLE
20.18/20.24	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 -518 519 520 521 -522 523 -524 525 526 527 -528 529 -530 531 -532 533 534 535 536 -537 -538 -539 -540 541 -542 -543 -544 545 546 -547 -548 549 -550 -551 552 -553 554 -555 556 -557 558 -559 560 0
20.18/20.24	c input file instance-1522279-1238576453.cnf, flips 13992941

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-1522279-1238576453/watcher-1522279-1238576453 -o /tmp/evaluation-result-1522279-1238576453/solver-1522279-1238576453 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1522279-1238576453.cnf 2043181417 

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: 1.00 1.03 1.00 3/72 19683
/proc/meminfo: memFree=1670304/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=0
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 486 0 0 0 0 0 0 0 18 0 1 0 1130306469 343977984 470 1992294400 134512640 135114423 4294956224 18446744073709551615 134615614 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 471 54 146 0 83831 0

[startup+0.0524931 s]
/proc/loadavg: 1.00 1.03 1.00 3/72 19683
/proc/meminfo: memFree=1670304/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=0.04
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 4 0 0 0 18 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134515852 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 335916

[startup+0.101502 s]
/proc/loadavg: 1.00 1.03 1.00 3/72 19683
/proc/meminfo: memFree=1670304/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=0.09
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 9 0 0 0 18 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134546232 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.301538 s]
/proc/loadavg: 1.00 1.03 1.00 3/72 19683
/proc/meminfo: memFree=1670304/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=0.29
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 29 0 0 0 19 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134546203 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.70161 s]
/proc/loadavg: 1.00 1.03 1.00 3/72 19683
/proc/meminfo: memFree=1670304/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=0.69
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 69 0 0 0 22 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134515806 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

[startup+1.50175 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19684
/proc/meminfo: memFree=1666712/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=1.49
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 149 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134516669 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 335916

[startup+3.10105 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19684
/proc/meminfo: memFree=1666520/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=3.09
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 309 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134546132 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 335916

[startup+6.30163 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19684
/proc/meminfo: memFree=1666544/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=6.29
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 629 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134546177 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 335916

[startup+12.7018 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19690
/proc/meminfo: memFree=1666344/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=12.68
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 1268 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134550408 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 335916

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

[startup+15.9014 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19690
/proc/meminfo: memFree=1666360/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=15.88
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 1588 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134550284 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 335916

[startup+17.5017 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19690
/proc/meminfo: memFree=1666360/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=17.49
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 1749 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134546177 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 335916

[startup+19.1019 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19690
/proc/meminfo: memFree=1666360/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=19.08
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 1908 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134546177 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 335916

[startup+19.9011 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19690
/proc/meminfo: memFree=1666360/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=19.88
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 1988 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134546146 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 19.88
Current children cumulated vsize (KiB) 335916

[startup+20.1011 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19690
/proc/meminfo: memFree=1666360/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=20.08
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 2008 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134547175 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 20.08
Current children cumulated vsize (KiB) 335916

[startup+20.2011 s]
/proc/loadavg: 1.00 1.03 1.00 2/73 19690
/proc/meminfo: memFree=1666360/2055920 swapFree=4174692/4192956
[pid=19683] ppid=19681 vsize=335916 CPUtime=20.18
/proc/19683/stat : 19683 (iPAWS) R 19681 19683 19646 0 -1 4194304 936 0 0 0 2018 0 0 0 25 0 1 0 1130306469 343977984 920 1992294400 134512640 135114423 4294956224 18446744073709551615 134547179 0 0 4096 0 0 0 0 17 1 0 0
/proc/19683/statm: 83979 920 57 146 0 83831 0
Current children cumulated CPU time (s) 20.18
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 20.2456
CPU time (s): 20.2359
CPU user time (s): 20.2279
CPU system time (s): 0.007998
CPU usage (%): 99.9524
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.2279
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 944
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= 35

runsolver used 0.025996 second user time and 0.055991 second system time

The end

Launcher Data 

Begin job on node67 at 2009-04-01 11:00:53
IDJOB=1522279
IDBENCH=70674
IDSOLVER=516
FILE ID=node67/1522279-1238576453
PBS_JOBID= 9062215
Free space on /tmp= 66376 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S45592023-054.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522279-1238576453/watcher-1522279-1238576453 -o /tmp/evaluation-result-1522279-1238576453/solver-1522279-1238576453 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1522279-1238576453.cnf 2043181417

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

MD5SUM BENCH= 1cdf960645ef22947407473f1df63e0b
RANDOM SEED=2043181417

node67.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		: 3000.265
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		: 3000.265
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:       1670720 kB
Buffers:         79836 kB
Cached:         214764 kB
SwapCached:       9632 kB
Active:         184244 kB
Inactive:       121340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1670720 kB
SwapTotal:     4192956 kB
SwapFree:      4174692 kB
Dirty:             836 kB
Writeback:           0 kB
Mapped:          16680 kB
Slab:            64628 kB
Committed_AS:  3257368 kB
PageTables:       2052 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= 66376 MiB
End job on node67 at 2009-04-01 11:01:14