Trace number 1523849

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
TNM 2009-03-22SAT 0.017996 0.0170939

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S1876865608-086.cnf
MD5SUMa08fcca560a80877927507a2ea133f40
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
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 

0.00/0.01	c try 1 flip j 5657
0.00/0.01	c A solution is found
0.00/0.01	s SATISFIABLE
0.00/0.01	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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0.010 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-1523849-1238578631/watcher-1523849-1238578631 -o /tmp/evaluation-result-1523849-1238578631/solver-1523849-1238578631 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1523849-1238578631.cnf 1003902959 

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: 0.91 0.97 0.99 3/64 7105
/proc/meminfo: memFree=858640/2055920 swapFree=4176868/4192956
[pid=7105] ppid=7103 vsize=451060 CPUtime=0
/proc/7105/stat : 7105 (TNM) R 7103 7105 6642 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 1130525530 461885440 127 1992294400 134512640 135094415 4294956208 18446744073709551615 134523874 0 0 4096 0 0 0 0 17 1 0 0
/proc/7105/statm: 112765 127 49 142 0 111644 0

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

Child status: 10
Real time (s): 0.0170939
CPU time (s): 0.017996
CPU user time (s): 0.016997
CPU system time (s): 0.000999
CPU usage (%): 105.277
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.016997
system time used= 0.000999
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 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node48 at 2009-04-01 11:37:12
IDJOB=1523849
IDBENCH=70680
IDSOLVER=532
FILE ID=node48/1523849-1238578631
PBS_JOBID= 9062180
Free space on /tmp= 66464 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S1876865608-086.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523849-1238578631/watcher-1523849-1238578631 -o /tmp/evaluation-result-1523849-1238578631/solver-1523849-1238578631 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1523849-1238578631.cnf 1003902959

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

MD5SUM BENCH= a08fcca560a80877927507a2ea133f40
RANDOM SEED=1003902959

node48.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		: 3000.236
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		: 3000.236
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:        859056 kB
Buffers:        105880 kB
Cached:         987140 kB
SwapCached:      10280 kB
Active:         329692 kB
Inactive:       775232 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        859056 kB
SwapTotal:     4192956 kB
SwapFree:      4176868 kB
Dirty:            4600 kB
Writeback:           0 kB
Mapped:          17536 kB
Slab:            77856 kB
Committed_AS:  2743168 kB
PageTables:       1376 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= 66460 MiB
End job on node48 at 2009-04-01 11:37:12