Trace number 1543088

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
gNovelty+-T 2009-03-22SAT 0.308952 0.2277

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S84716411-095.cnf
MD5SUMee6ebc8afc6634471ab0e2f554ddcb49
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.025996
Satisfiable
(Un)Satisfiability was proved
Number of variables540
Number of clauses2295
Sum of the clauses size6885
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32295
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.13	c +------------------------------+
0.09/0.13	c | gNovelty+, version 1.0       |
0.09/0.13	c +------------------------------+
0.09/0.13	c gnovelty+ -h for help
0.09/0.13	c 
0.26/0.21	s SATISFIABLE
0.26/0.21	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 -520 521 522 523 -524 525 -526 -527 -528 529 530 531 532 -533 -534 535 -536 -537 538 -539 -540 0
0.26/0.21	c Done in 0.140000 seconds

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-1543088-1238587938/watcher-1543088-1238587938 -o /tmp/evaluation-result-1543088-1238587938/solver-1543088-1238587938 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1543088-1238587938.cnf 549304020 2 

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: 0.92 0.98 0.99 3/72 20346
/proc/meminfo: memFree=1667592/2055920 swapFree=4174692/4192956
[pid=20346] ppid=20344 vsize=509152 CPUtime=0
/proc/20346/stat : 20346 (gnovelty+) R 20344 20346 19646 0 -1 4194304 1131 0 0 0 0 0 0 0 18 0 1 0 1131454954 521371648 1116 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/20346/statm: 127288 1124 102 285 0 127000 0

[startup+0.101101 s]
/proc/loadavg: 0.92 0.98 0.99 3/72 20346
/proc/meminfo: memFree=1667592/2055920 swapFree=4174692/4192956
[pid=20346] ppid=20344 vsize=516964 CPUtime=0.09
/proc/20346/stat : 20346 (gnovelty+) R 20344 20346 19646 0 -1 4194304 15963 0 0 0 3 6 0 0 18 0 1 0 1131454954 529371136 15947 1992294400 134512640 135680988 4294956192 18446744073709551615 134537968 0 0 4096 0 0 0 0 17 1 0 0
/proc/20346/statm: 129241 15952 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

[startup+0.201118 s]
/proc/loadavg: 0.92 0.98 0.99 3/72 20346
/proc/meminfo: memFree=1667592/2055920 swapFree=4174692/4192956
[pid=20346] ppid=20344 vsize=529296 CPUtime=0.26
/proc/20346/stat : 20346 (gnovelty+) R 20344 20346 19646 0 -1 4194304 19750 0 0 0 16 10 0 0 17 0 2 0 1131454954 541999104 19734 1992294400 134512640 135680988 4294956192 18446744073709551615 134957681 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/20346/statm: 132324 19734 106 285 0 132036 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 529296

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

Child status: 10
Real time (s): 0.2277
CPU time (s): 0.308952
CPU user time (s): 0.189971
CPU system time (s): 0.118981
CPU usage (%): 135.684
Max. virtual memory (cumulated for all children) (KiB): 529296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.189971
system time used= 0.118981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19765
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= 27
involuntary context switches= 2

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node67 at 2009-04-01 14:12:18
IDJOB=1543088
IDBENCH=70711
IDSOLVER=550
FILE ID=node67/1543088-1238587938
PBS_JOBID= 9062215
Free space on /tmp= 66376 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S84716411-095.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1543088-1238587938/watcher-1543088-1238587938 -o /tmp/evaluation-result-1543088-1238587938/solver-1543088-1238587938 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1543088-1238587938.cnf 549304020 2

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= ee6ebc8afc6634471ab0e2f554ddcb49
RANDOM SEED=549304020

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:       1668008 kB
Buffers:         80956 kB
Cached:         216024 kB
SwapCached:       9632 kB
Active:         188064 kB
Inactive:       119992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1668008 kB
SwapTotal:     4192956 kB
SwapFree:      4174692 kB
Dirty:            1444 kB
Writeback:           0 kB
Mapped:          16800 kB
Slab:            64860 kB
Committed_AS:  3262540 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 14:12:18