Trace number 1523789

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 0.014996 0.0152171

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
MD5SUM4cc7ee2f20081e6ebd36addd568f2c4e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
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 

0.00/0.01	c try 1 flip j 4919
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 
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-1523789-1238573207/watcher-1523789-1238573207 -o /tmp/evaluation-result-1523789-1238573207/solver-1523789-1238573207 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1523789-1238573207.cnf 619800304 

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: 2.25 2.18 1.70 3/72 19262
/proc/meminfo: memFree=1667296/2055920 swapFree=4174692/4192956
[pid=19262] ppid=19260 vsize=451060 CPUtime=0
/proc/19262/stat : 19262 (TNM) R 19260 19262 18747 0 -1 4194304 140 0 0 0 0 0 0 0 18 0 1 0 1129981861 461885440 124 1992294400 134512640 135094415 4294956208 18446744073709551615 134523893 0 0 4096 0 0 0 0 17 1 0 0
/proc/19262/statm: 112765 124 49 142 0 111644 0

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

Child status: 10
Real time (s): 0.0152171
CPU time (s): 0.014996
CPU user time (s): 0.013997
CPU system time (s): 0.000999
CPU usage (%): 98.547
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.013997
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= 215
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 0.005999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node67 at 2009-04-01 10:06:47
IDJOB=1523789
IDBENCH=70660
IDSOLVER=532
FILE ID=node67/1523789-1238573207
PBS_JOBID= 9062170
Free space on /tmp= 66376 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523789-1238573207/watcher-1523789-1238573207 -o /tmp/evaluation-result-1523789-1238573207/solver-1523789-1238573207 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1523789-1238573207.cnf 619800304

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

MD5SUM BENCH= 4cc7ee2f20081e6ebd36addd568f2c4e
RANDOM SEED=619800304

node67.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		: 3000.265
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		: 3000.265
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:       1667712 kB
Buffers:         79268 kB
Cached:         218392 kB
SwapCached:       9632 kB
Active:         187208 kB
Inactive:       121524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1667712 kB
SwapTotal:     4192956 kB
SwapFree:      4174692 kB
Dirty:            4600 kB
Writeback:           0 kB
Mapped:          16800 kB
Slab:            64512 kB
Committed_AS:  3234820 kB
PageTables:       2052 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 node67 at 2009-04-01 10:06:47