Trace number 1629823

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 0.024995 0.0240631

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S786890012-057.cnf
MD5SUMa1a4d8d82b0d4daf47cfa00c0df86ca5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.024995
Satisfiable
(Un)Satisfiability was proved
Number of variables560
Number of clauses2380
Sum of the clauses size7140
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32380
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c 0 clauses are redundant and removed
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.02	c initial seed is 1183801151
0.00/0.02	c try 1 flip j 10020 walk 8074 seed 1128250724
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 -541 -542 543 -544 545 -546 547 548 -549 -550 551 -552 -553 -554 -555 556 -557 558 559 -560 
0.00/0.02	v 0 
0.00/0.02	c Done (mycputime is 0.020 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1629823-1240141529/watcher-1629823-1240141529 -o /tmp/evaluation-result-1629823-1240141529/solver-1629823-1240141529 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1629823-1240141529.cnf 1183801151 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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 3/64 23794
/proc/meminfo: memFree=1267128/2055920 swapFree=4192956/4192956
[pid=23794] ppid=23792 vsize=415928 CPUtime=0
/proc/23794/stat : 23794 (adaptg2wsat2009) R 23792 23794 23719 0 -1 4194304 151 0 0 0 0 0 0 0 18 0 1 0 42186338 425910272 134 1992294400 134512640 135107411 4294956208 18446744073709551615 134523072 0 0 4096 0 0 0 0 17 1 0 0
/proc/23794/statm: 103982 134 49 145 0 102858 0

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

Child status: 10
Real time (s): 0.0240631
CPU time (s): 0.024995
CPU user time (s): 0.021996
CPU system time (s): 0.002999
CPU usage (%): 103.873
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.021996
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 233
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 node16 at 2009-04-19 13:45:29
IDJOB=1629823
IDBENCH=70679
IDSOLVER=584
FILE ID=node16/1629823-1240141529
PBS_JOBID= 9159252
Free space on /tmp= 66380 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S786890012-057.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629823-1240141529/watcher-1629823-1240141529 -o /tmp/evaluation-result-1629823-1240141529/solver-1629823-1240141529 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1629823-1240141529.cnf 1183801151

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= a1a4d8d82b0d4daf47cfa00c0df86ca5
RANDOM SEED=1183801151

node16.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		: 3000.234
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		: 3000.234
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:       1267544 kB
Buffers:         89252 kB
Cached:         621688 kB
SwapCached:          0 kB
Active:         348800 kB
Inactive:       375048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1267544 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4636 kB
Writeback:           0 kB
Mapped:          22660 kB
Slab:            50552 kB
Committed_AS:   166260 kB
PageTables:       1436 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= 66372 MiB
End job on node16 at 2009-04-19 13:45:30