Trace number 1534408

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
adaptg2wsat2009++ 2009-03-23SAT 0.093985 0.0943699

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S956671877-054.cnf
MD5SUMfa9334576b7ead7d32e2b64d3b23241f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
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 

0.00/0.09	c 0 clauses are redundant and removed
0.00/0.09	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.09	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.09	c initial seed is 1210597208
0.00/0.09	c try 1 flip j 78593 walk 65612 seed 439817718
0.00/0.09	c A solution is found
0.00/0.09	s SATISFIABLE
0.00/0.09	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 
0.00/0.09	v 0 
0.00/0.09	c Done (mycputime is 0.090 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-1534408-1238571993/watcher-1534408-1238571993 -o /tmp/evaluation-result-1534408-1238571993/solver-1534408-1238571993 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534408-1238571993.cnf 1210597208 

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 1.00 3/64 20071
/proc/meminfo: memFree=1595128/2055920 swapFree=4179168/4192956
[pid=20071] ppid=20069 vsize=415928 CPUtime=0
/proc/20071/stat : 20071 (adaptg2wsat2009) R 20069 20071 19579 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 1129861226 425910272 128 1992294400 134512640 135107411 4294956192 18446744073709551615 134523072 0 0 4096 0 0 0 0 17 1 0 0
/proc/20071/statm: 103982 128 49 145 0 102858 0

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

Child status: 10
Real time (s): 0.0943699
CPU time (s): 0.093985
CPU user time (s): 0.091986
CPU system time (s): 0.001999
CPU usage (%): 99.5921
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.091986
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= 223
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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-01 09:46:33
IDJOB=1534408
IDBENCH=70655
IDSOLVER=543
FILE ID=node61/1534408-1238571993
PBS_JOBID= 9062164
Free space on /tmp= 66344 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S956671877-054.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534408-1238571993/watcher-1534408-1238571993 -o /tmp/evaluation-result-1534408-1238571993/solver-1534408-1238571993 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534408-1238571993.cnf 1210597208

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

MD5SUM BENCH= fa9334576b7ead7d32e2b64d3b23241f
RANDOM SEED=1210597208

node61.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		: 3000.238
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		: 3000.238
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:       1595544 kB
Buffers:         88176 kB
Cached:         278584 kB
SwapCached:       7920 kB
Active:         203256 kB
Inactive:       173092 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1595544 kB
SwapTotal:     4192956 kB
SwapFree:      4179168 kB
Dirty:            4612 kB
Writeback:           0 kB
Mapped:          15416 kB
Slab:            70108 kB
Committed_AS:  2748428 kB
PageTables:       1372 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66340 MiB
End job on node61 at 2009-04-01 09:46:34