Trace number 1534428

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 0.018996 0.0189489

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S621134782-041.cnf
MD5SUM09a6dc57cba44ea6f55eca37108c958d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 118284090
0.00/0.01	c try 1 flip j 6576 walk 5314 seed 1147015381
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-1534428-1238572942/watcher-1534428-1238572942 -o /tmp/evaluation-result-1534428-1238572942/solver-1534428-1238572942 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534428-1238572942.cnf 118284090 

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: 0.96 1.01 1.00 2/64 23665
/proc/meminfo: memFree=1557672/2055920 swapFree=4178472/4192956
[pid=23665] ppid=23663 vsize=415928 CPUtime=0
/proc/23665/stat : 23665 (adaptg2wsat2009) R 23663 23665 23321 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 1129961206 425910272 128 1992294400 134512640 135107411 4294956192 18446744073709551615 134523317 0 0 4096 0 0 0 0 17 1 0 0
/proc/23665/statm: 103982 128 49 145 0 102858 0

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

Child status: 10
Real time (s): 0.0189489
CPU time (s): 0.018996
CPU user time (s): 0.016997
CPU system time (s): 0.001999
CPU usage (%): 100.249
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.016997
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 222
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 node1 at 2009-04-01 10:02:22
IDJOB=1534428
IDBENCH=70659
IDSOLVER=543
FILE ID=node1/1534428-1238572942
PBS_JOBID= 9070525
Free space on /tmp= 66132 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S621134782-041.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534428-1238572942/watcher-1534428-1238572942 -o /tmp/evaluation-result-1534428-1238572942/solver-1534428-1238572942 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534428-1238572942.cnf 118284090

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

MD5SUM BENCH= 09a6dc57cba44ea6f55eca37108c958d
RANDOM SEED=118284090

node1.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		: 3000.229
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		: 3000.229
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:       1558152 kB
Buffers:         91864 kB
Cached:         306668 kB
SwapCached:       8380 kB
Active:         202992 kB
Inactive:       205516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1558152 kB
SwapTotal:     4192956 kB
SwapFree:      4178472 kB
Dirty:            4612 kB
Writeback:           0 kB
Mapped:          15760 kB
Slab:            75300 kB
Committed_AS:  3034516 kB
PageTables:       1440 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= 66128 MiB
End job on node1 at 2009-04-01 10:02:22