Trace number 1543096

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+-V.2-T 2009-03-22SAT 0.266958 0.135712

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S900737394-048.cnf
MD5SUMa3ba32614e3b11804668b06c2afeb296
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.018996
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 

0.00/0.00	c +------------------------------+
0.00/0.00	c | gNovelty+, version 2.0       |
0.00/0.00	c +------------------------------+
0.00/0.00	c gnovelty+ -h for help
0.00/0.00	c 
0.00/0.13	s SATISFIABLE
0.00/0.13	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

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-1543096-1238588361/watcher-1543096-1238588361 -o /tmp/evaluation-result-1543096-1238588361/solver-1543096-1238588361 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1543096-1238588361.cnf 790635577 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 1.00 1.13 3/64 521
/proc/meminfo: memFree=1031400/2055920 swapFree=4176444/4192956
[pid=521] ppid=519 vsize=71140 CPUtime=0
/proc/521/stat : 521 (gnovelty+) R 519 521 32211 0 -1 4194304 184 0 0 0 0 0 0 0 18 0 2 0 1131501433 72847360 168 1992294400 134512640 135728688 4294956192 18446744073709551615 135136966 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/521/statm: 17785 174 103 296 0 17486 0
[pid=521/tid=522] ppid=519 vsize=71140 CPUtime=0
/proc/521/task/522/stat : 522 (gnovelty+) R 519 521 32211 0 -1 4194368 0 0 0 0 0 0 0 0 19 0 2 0 1131501434 72847360 176 1992294400 134512640 135728688 4294956192 18446744073709551615 135205972 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.0294629 s]
/proc/loadavg: 0.92 1.00 1.13 3/64 521
/proc/meminfo: memFree=1031400/2055920 swapFree=4176444/4192956
[pid=521] ppid=519 vsize=71140 CPUtime=0.14
/proc/521/stat : 521 (gnovelty+) R 519 521 32211 0 -1 4194304 204 0 0 0 13 1 0 0 17 0 2 0 1131501433 72847360 188 1992294400 134512640 135728688 4294956192 18446744073709551615 134612145 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/521/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 71140

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

[startup+0.0294629 s]
/proc/loadavg: 0.92 1.00 1.13 3/64 521
/proc/meminfo: memFree=1031400/2055920 swapFree=4176444/4192956
[pid=521] ppid=519 vsize=71140 CPUtime=0.14
/proc/521/stat : 521 (gnovelty+) R 519 521 32211 0 -1 4194304 204 0 0 0 13 1 0 0 17 0 2 0 1131501433 72847360 188 1992294400 134512640 135728688 4294956192 18446744073709551615 134612145 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/521/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 71140

Child status: 10
Real time (s): 0.135712
CPU time (s): 0.266958
CPU user time (s): 0.238963
CPU system time (s): 0.027995
CPU usage (%): 196.709
Max. virtual memory (cumulated for all children) (KiB): 71140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.238963
system time used= 0.027995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 213
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= 32
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-01 14:19:21
IDJOB=1543096
IDBENCH=70712
IDSOLVER=552
FILE ID=node27/1543096-1238588361
PBS_JOBID= 9062222
Free space on /tmp= 65720 MiB

SOLVER NAME= gNovelty+-V.2-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S900737394-048.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1543096-1238588361/watcher-1543096-1238588361 -o /tmp/evaluation-result-1543096-1238588361/solver-1543096-1238588361 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1543096-1238588361.cnf 790635577 2

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

MD5SUM BENCH= a3ba32614e3b11804668b06c2afeb296
RANDOM SEED=790635577

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:       1031816 kB
Buffers:         95628 kB
Cached:         824304 kB
SwapCached:       9492 kB
Active:         203272 kB
Inactive:       727832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1031816 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            1496 kB
Writeback:           0 kB
Mapped:          16828 kB
Slab:            78844 kB
Committed_AS:  2995280 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65716 MiB
End job on node27 at 2009-04-01 14:19:21