Trace number 1534653

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 0.090985 0.0920941

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S449511205-064.cnf
MD5SUM0527554bf26e85456bf4748c19812747
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.066989
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 

0.03/0.09	c 0 clauses are redundant and removed
0.03/0.09	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.03/0.09	c 0 vars are fixed and 0 clauses are removed after lookahead
0.03/0.09	c initial seed is 130472344
0.03/0.09	c try 1 flip j 75233 walk 63573 seed 1050897701
0.03/0.09	c A solution is found
0.03/0.09	s SATISFIABLE
0.03/0.09	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 
0.03/0.09	v 0 
0.03/0.09	c Done (mycputime is 0.080 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-1534653-1238585371/watcher-1534653-1238585371 -o /tmp/evaluation-result-1534653-1238585371/solver-1534653-1238585371 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534653-1238585371.cnf 130472344 

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: 0.99 0.98 0.99 3/64 14792
/proc/meminfo: memFree=1240312/2055920 swapFree=4178352/4192956
[pid=14792] ppid=14790 vsize=415928 CPUtime=0
/proc/14792/stat : 14792 (adaptg2wsat2009) R 14790 14792 14067 0 -1 4194304 148 0 0 0 0 0 0 0 18 0 1 0 1131199932 425910272 131 1992294400 134512640 135107411 4294956192 18446744073709551615 134523072 0 0 4096 0 0 0 0 17 1 0 0
/proc/14792/statm: 103982 131 49 145 0 102858 0

[startup+0.0349931 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 14792
/proc/meminfo: memFree=1240312/2055920 swapFree=4178352/4192956
[pid=14792] ppid=14790 vsize=416068 CPUtime=0.03
/proc/14792/stat : 14792 (adaptg2wsat2009) R 14790 14792 14067 0 -1 4194304 214 0 0 0 3 0 0 0 18 0 1 0 1131199932 426053632 197 1992294400 134512640 135107411 4294956192 18446744073709551615 134534993 0 0 4096 0 0 0 0 17 1 0 0
/proc/14792/statm: 104017 197 59 145 0 102893 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 416068

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

[startup+0.0349931 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 14792
/proc/meminfo: memFree=1240312/2055920 swapFree=4178352/4192956
[pid=14792] ppid=14790 vsize=416068 CPUtime=0.03
/proc/14792/stat : 14792 (adaptg2wsat2009) R 14790 14792 14067 0 -1 4194304 214 0 0 0 3 0 0 0 18 0 1 0 1131199932 426053632 197 1992294400 134512640 135107411 4294956192 18446744073709551615 134534993 0 0 4096 0 0 0 0 17 1 0 0
/proc/14792/statm: 104017 197 59 145 0 102893 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 416068

Child status: 10
Real time (s): 0.0920941
CPU time (s): 0.090985
CPU user time (s): 0.088986
CPU system time (s): 0.001999
CPU usage (%): 98.7957
Max. virtual memory (cumulated for all children) (KiB): 416068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.088986
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= 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= 1

runsolver used 0.001999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node43 at 2009-04-01 13:29:31
IDJOB=1534653
IDBENCH=70704
IDSOLVER=543
FILE ID=node43/1534653-1238585371
PBS_JOBID= 9062192
Free space on /tmp= 63084 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S449511205-064.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534653-1238585371/watcher-1534653-1238585371 -o /tmp/evaluation-result-1534653-1238585371/solver-1534653-1238585371 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534653-1238585371.cnf 130472344

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

MD5SUM BENCH= 0527554bf26e85456bf4748c19812747
RANDOM SEED=130472344

node43.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		: 3000.242
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		: 3000.242
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:       1240728 kB
Buffers:         93620 kB
Cached:         627380 kB
SwapCached:       8504 kB
Active:         312388 kB
Inactive:       418620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1240728 kB
SwapTotal:     4192956 kB
SwapFree:      4178352 kB
Dirty:            4620 kB
Writeback:           0 kB
Mapped:          15768 kB
Slab:            70164 kB
Committed_AS:  2593976 kB
PageTables:       1448 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= 63080 MiB
End job on node43 at 2009-04-01 13:29:32