Trace number 1534688

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 0.025996 0.026057

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S84716411-095.cnf
MD5SUMee6ebc8afc6634471ab0e2f554ddcb49
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.025996
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 

0.00/0.02	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 1495996718
0.00/0.02	c try 1 flip j 12324 walk 9915 seed 1666709588
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 
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:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1534688-1238587871/watcher-1534688-1238587871 -o /tmp/evaluation-result-1534688-1238587871/solver-1534688-1238587871 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534688-1238587871.cnf 1495996718 

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 1.15 3/64 28955
/proc/meminfo: memFree=1296144/2055920 swapFree=4178260/4192956
[pid=28955] ppid=28953 vsize=415928 CPUtime=0
/proc/28955/stat : 28955 (adaptg2wsat2009) R 28953 28955 28070 0 -1 4194304 148 0 0 0 0 0 0 0 18 0 1 0 897378583 425910272 131 1992294400 134512640 135107411 4294956192 18446744073709551615 134523199 0 0 4096 0 0 0 0 17 1 0 0
/proc/28955/statm: 103982 131 49 145 0 102858 0

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

Child status: 10
Real time (s): 0.026057
CPU time (s): 0.025996
CPU user time (s): 0.025996
CPU system time (s): 0
CPU usage (%): 99.766
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.025996
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 227
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 0.004999 second system time

The end

Launcher Data 

Begin job on node39 at 2009-04-01 14:11:11
IDJOB=1534688
IDBENCH=70711
IDSOLVER=543
FILE ID=node39/1534688-1238587871
PBS_JOBID= 9062216
Free space on /tmp= 66252 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S84716411-095.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534688-1238587871/watcher-1534688-1238587871 -o /tmp/evaluation-result-1534688-1238587871/solver-1534688-1238587871 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534688-1238587871.cnf 1495996718

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

MD5SUM BENCH= ee6ebc8afc6634471ab0e2f554ddcb49
RANDOM SEED=1495996718

node39.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		: 3000.285
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		: 3000.285
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:       1296560 kB
Buffers:         97904 kB
Cached:         562436 kB
SwapCached:       8168 kB
Active:         232868 kB
Inactive:       437460 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1296560 kB
SwapTotal:     4192956 kB
SwapFree:      4178260 kB
Dirty:            4912 kB
Writeback:           0 kB
Mapped:          16744 kB
Slab:            75340 kB
Committed_AS:  2485232 kB
PageTables:       1188 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= 66248 MiB
End job on node39 at 2009-04-01 14:11:11