Trace number 1534668

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 0.022995 0.0266699

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S1332067449-041.cnf
MD5SUM2b606655a01fc0a35cd7131dc9f54b92
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
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 435710160
0.00/0.02	c try 1 flip j 11629 walk 9433 seed 955902277
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-1534668-1238586398/watcher-1534668-1238586398 -o /tmp/evaluation-result-1534668-1238586398/solver-1534668-1238586398 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534668-1238586398.cnf 435710160 

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: 2.00 2.02 2.00 4/86 1477
/proc/meminfo: memFree=1663408/2055924 swapFree=4179644/4192956
[pid=1477] ppid=1475 vsize=415928 CPUtime=0
/proc/1477/stat : 1477 (adaptg2wsat2009) R 1475 1477 841 0 -1 4194304 148 0 0 0 0 0 0 0 21 0 1 0 484970224 425910272 131 1992294400 134512640 135107411 4294956192 18446744073709551615 134523302 0 0 4096 0 0 0 0 17 1 0 0
/proc/1477/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): 0.0266699
CPU time (s): 0.022995
CPU user time (s): 0.021996
CPU system time (s): 0.000999
CPU usage (%): 86.2207
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.021996
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= 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= 3

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node83 at 2009-04-01 13:46:38
IDJOB=1534668
IDBENCH=70707
IDSOLVER=543
FILE ID=node83/1534668-1238586398
PBS_JOBID= 9062209
Free space on /tmp= 66508 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S1332067449-041.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534668-1238586398/watcher-1534668-1238586398 -o /tmp/evaluation-result-1534668-1238586398/solver-1534668-1238586398 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534668-1238586398.cnf 435710160

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

MD5SUM BENCH= 2b606655a01fc0a35cd7131dc9f54b92
RANDOM SEED=435710160

node83.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		: 3000.268
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		: 3000.268
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055924 kB
MemFree:       1663888 kB
Buffers:         78248 kB
Cached:         218944 kB
SwapCached:       7584 kB
Active:         211092 kB
Inactive:       104728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1663888 kB
SwapTotal:     4192956 kB
SwapFree:      4179644 kB
Dirty:            4880 kB
Writeback:           0 kB
Mapped:          26052 kB
Slab:            60304 kB
Committed_AS:  1247544 kB
PageTables:       2680 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= 66500 MiB
End job on node83 at 2009-04-01 13:46:38