Trace number 1529060

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+2 2009-03-22SAT 0.105983 0.105849

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S1332067449-041.cnf
MD5SUM2b606655a01fc0a35cd7131dc9f54b92
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
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 
0.00/0.00	c Problem instance: numAtoms = 540, numClauses = 2295
0.00/0.00	c General parameters: seed = 1997159644, timeout = 10 secs, targetCost = 0, print solution: no
0.00/0.00	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.00/0.00	c tries = 1
0.00/0.00	c 
0.09/0.10	c      0    73715         0     73715     22207      0.10
0.09/0.10	s SATISFIABLE
0.09/0.10	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
0.09/0.10	c Done in 0.100000 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-1529060-1238586417/watcher-1529060-1238586417 -o /tmp/evaluation-result-1529060-1238586417/solver-1529060-1238586417 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1529060-1238586417.cnf 1997159644 

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 1.00 1.02 2/64 21523
/proc/meminfo: memFree=1313528/2055920 swapFree=4175308/4192956
[pid=21523] ppid=21521 vsize=1017724 CPUtime=0
/proc/21523/stat : 21523 (gnovelty+2) R 21521 21523 21395 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 1131303571 1042149376 134 1992294400 134512640 135663704 4294956224 18446744073709551615 135285607 0 0 4096 0 0 0 0 17 1 0 0
/proc/21523/statm: 254430 133 96 281 0 254146 0

[startup+0.0785011 s]
/proc/loadavg: 1.00 1.00 1.02 2/64 21523
/proc/meminfo: memFree=1313528/2055920 swapFree=4175308/4192956
[pid=21523] ppid=21521 vsize=1017720 CPUtime=0.07
/proc/21523/stat : 21523 (gnovelty+2) R 21521 21523 21395 0 -1 4194304 196 0 0 0 7 0 0 0 18 0 1 0 1131303571 1042145280 179 1992294400 134512640 135663704 4294956224 18446744073709551615 134546264 0 0 4096 0 0 0 0 17 1 0 0
/proc/21523/statm: 254430 179 112 281 0 254146 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1017720

[startup+0.101504 s]
/proc/loadavg: 1.00 1.00 1.02 2/64 21523
/proc/meminfo: memFree=1313528/2055920 swapFree=4175308/4192956
[pid=21523] ppid=21521 vsize=1017720 CPUtime=0.09
/proc/21523/stat : 21523 (gnovelty+2) R 21521 21523 21395 0 -1 4194304 196 0 0 0 9 0 0 0 18 0 1 0 1131303571 1042145280 179 1992294400 134512640 135663704 4294956224 18446744073709551615 134564717 0 0 4096 0 0 0 0 17 1 0 0
/proc/21523/statm: 254430 179 112 281 0 254146 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1017720

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

Child status: 10
Real time (s): 0.105849
CPU time (s): 0.105983
CPU user time (s): 0.103984
CPU system time (s): 0.001999
CPU usage (%): 100.127
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.103984
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 200
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= 0

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node55 at 2009-04-01 13:46:57
IDJOB=1529060
IDBENCH=70707
IDSOLVER=548
FILE ID=node55/1529060-1238586417
PBS_JOBID= 9062241
Free space on /tmp= 66304 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S1332067449-041.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1529060-1238586417/watcher-1529060-1238586417 -o /tmp/evaluation-result-1529060-1238586417/solver-1529060-1238586417 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1529060-1238586417.cnf 1997159644

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

MD5SUM BENCH= 2b606655a01fc0a35cd7131dc9f54b92
RANDOM SEED=1997159644

node55.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		: 3000.259
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		: 3000.259
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:       1313944 kB
Buffers:        103012 kB
Cached:         531568 kB
SwapCached:      11624 kB
Active:         205492 kB
Inactive:       443940 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1313944 kB
SwapTotal:     4192956 kB
SwapFree:      4175308 kB
Dirty:            1428 kB
Writeback:           0 kB
Mapped:          18892 kB
Slab:            78568 kB
Committed_AS:  2898812 kB
PageTables:       1372 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= 66304 MiB
End job on node55 at 2009-04-01 13:46:57