Trace number 1528911

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+ 2009-03-22SAT 0.392939 0.393536

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S146188995-071.cnf
MD5SUM890aea0df389e5329db583f37e858c1b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015996
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 

0.09/0.15	c +------------------------------+
0.09/0.15	c | gNovelty+, version 1.2       |
0.09/0.15	c +------------------------------+
0.09/0.15	c gnovelty+ -h for help
0.09/0.15	c 
0.09/0.15	finish initINstance()
0.09/0.15	c Problem instance: numAtoms = 520, numClauses = 2210, numLiterals = 6630
0.09/0.15	c General parameters: seed = 9277842, timeout = 10 secs, targetCost = 0, print solution: no
0.09/0.15	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.09/0.15	c tries = 1
0.09/0.15	c 
0.29/0.37	     0   173926         0    173926     44250      0.22
0.29/0.37	s SATISFIABLE
0.29/0.37	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
0.29/0.38	c Done in 0.220000 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-1528911-1238572729/watcher-1528911-1238572729 -o /tmp/evaluation-result-1528911-1238572729/solver-1528911-1238572729 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1528911-1238572729.cnf 9277842 

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: 1.91 1.84 1.45 3/70 8048
/proc/meminfo: memFree=1666920/2055920 swapFree=4173176/4192956
[pid=8048] ppid=8046 vsize=957772 CPUtime=0
/proc/8048/stat : 8048 (gnovelty+) R 8046 8048 7177 0 -1 4194304 827 0 0 0 0 0 0 0 18 0 1 0 1129936131 980758528 811 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/8048/statm: 239443 817 46 143 0 239298 0

[startup+0.0697691 s]
/proc/loadavg: 1.91 1.84 1.45 3/70 8048
/proc/meminfo: memFree=1666920/2055920 swapFree=4173176/4192956
[pid=8048] ppid=8046 vsize=958552 CPUtime=0.06
/proc/8048/stat : 8048 (gnovelty+) R 8046 8048 7177 0 -1 4194304 10199 0 0 0 2 4 0 0 18 0 1 0 1129936131 981557248 10182 1992294400 134512640 135098890 4294956208 18446744073709551615 134518580 0 0 4096 0 0 0 0 17 1 0 0
/proc/8048/statm: 239638 10187 48 143 0 239493 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 958552

[startup+0.10177 s]
/proc/loadavg: 1.91 1.84 1.45 3/70 8048
/proc/meminfo: memFree=1666920/2055920 swapFree=4173176/4192956
[pid=8048] ppid=8046 vsize=958552 CPUtime=0.09
/proc/8048/stat : 8048 (gnovelty+) R 8046 8048 7177 0 -1 4194304 13739 0 0 0 4 5 0 0 18 0 1 0 1129936131 981557248 13722 1992294400 134512640 135098890 4294956208 18446744073709551615 134518515 0 0 4096 0 0 0 0 17 1 0 0
/proc/8048/statm: 239638 13727 48 143 0 239493 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 958552

[startup+0.301791 s]
/proc/loadavg: 1.91 1.84 1.45 3/70 8048
/proc/meminfo: memFree=1666920/2055920 swapFree=4173176/4192956
[pid=8048] ppid=8046 vsize=958552 CPUtime=0.29
/proc/8048/stat : 8048 (gnovelty+) R 8046 8048 7177 0 -1 4194304 19676 0 0 0 22 7 0 0 19 0 1 0 1129936131 981557248 19659 1992294400 134512640 135098890 4294956208 18446744073709551615 134515559 0 0 4096 0 0 0 0 17 1 0 0
/proc/8048/statm: 239638 19659 65 143 0 239493 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 958552

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

Child status: 10
Real time (s): 0.393536
CPU time (s): 0.392939
CPU user time (s): 0.302953
CPU system time (s): 0.089986
CPU usage (%): 99.8483
Max. virtual memory (cumulated for all children) (KiB): 958552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.302953
system time used= 0.089986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19679
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 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node36 at 2009-04-01 09:58:49
IDJOB=1528911
IDBENCH=70658
IDSOLVER=536
FILE ID=node36/1528911-1238572729
PBS_JOBID= 9062151
Free space on /tmp= 66412 MiB

SOLVER NAME= gnovelty+ 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S146188995-071.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528911-1238572729/watcher-1528911-1238572729 -o /tmp/evaluation-result-1528911-1238572729/solver-1528911-1238572729 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1528911-1238572729.cnf 9277842

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

MD5SUM BENCH= 890aea0df389e5329db583f37e858c1b
RANDOM SEED=9277842

node36.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		: 3000.214
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		: 3000.214
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:       1667336 kB
Buffers:         79176 kB
Cached:         224612 kB
SwapCached:       9148 kB
Active:         188268 kB
Inactive:       126180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1667336 kB
SwapTotal:     4192956 kB
SwapFree:      4173176 kB
Dirty:             876 kB
Writeback:           0 kB
Mapped:          16348 kB
Slab:            59404 kB
Committed_AS:  3155264 kB
PageTables:       1876 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= 66412 MiB
End job on node36 at 2009-04-01 09:58:49