Trace number 371790

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, and are wall clock time (not CPU 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
sapsrt 2007-02-08SAT 0.108983 0.110871

General information on the benchmark

Namerandom/OnTreshold/3SAT/v600/
unif-k3-r4.261-v600-c2556-S1775402689-01.SAT.shuffled.cnf
MD5SUM01f9fe21f07697aca0271800a004de34
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.104984
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.10/0.10	c 
0.10/0.10	c UBCSAT version 1.1.0rr
0.10/0.10	c 
0.10/0.10	c http://www.satlib.org/ubcsat
0.10/0.10	c 
0.10/0.10	c ubcsat -h for help
0.10/0.10	c 
0.10/0.10	c  -runs 1 
0.10/0.10	c  -cutoff 4294967295 
0.10/0.10	c  -timeout 0.000000 
0.10/0.10	c  -gtimeout 0.000000 
0.10/0.10	c  -noimprove 0 
0.10/0.10	c  -target 0 
0.10/0.10	c  -wtarget 0.000000 
0.10/0.10	c  -seed 645993399 
0.10/0.10	c  -solve 0 
0.10/0.10	c  -find,-numsol 0 
0.10/0.10	c  -findunique 0 
0.10/0.10	c  -srestart 0 
0.10/0.10	c  -prestart 0.000000 
0.10/0.10	c  -drestart 0 
0.10/0.10	c 
0.10/0.10	c  -alpha 1.126000 
0.10/0.10	c  -rho 0.666000 
0.10/0.10	c  -ps 0.033000 
0.10/0.10	c  -wp 0.060000 
0.10/0.10	c  -sapsthresh -0.100000 
0.10/0.10	c 
0.10/0.10	s SATISFIABLE
0.10/0.10	v  1 -2 3 4 -5 -6 7 8 -9 -10
0.10/0.10	v  11 12 -13 -14 15 -16 -17 18 -19 -20
0.10/0.10	v  -21 22 -23 24 -25 -26 27 28 -29 -30
0.10/0.10	v  31 32 -33 34 -35 -36 -37 38 -39 40
0.10/0.10	v  -41 -42 -43 44 -45 46 -47 48 -49 50
0.10/0.10	v  51 52 53 54 55 56 -57 -58 -59 60
0.10/0.10	v  61 62 -63 64 65 66 67 68 -69 -70
0.10/0.10	v  -71 -72 73 -74 75 -76 77 78 79 -80
0.10/0.10	v  -81 82 83 -84 -85 -86 -87 88 -89 90
0.10/0.10	v  -91 92 93 94 95 -96 97 98 99 100
0.10/0.10	v  -101 -102 103 104 105 -106 -107 108 -109 110
0.10/0.10	v  -111 -112 113 114 115 -116 -117 -118 119 120
0.10/0.10	v  121 122 -123 -124 125 -126 -127 128 -129 130
0.10/0.10	v  -131 -132 133 -134 -135 -136 -137 138 -139 -140
0.10/0.10	v  -141 -142 -143 -144 -145 146 147 148 -149 150
0.10/0.10	v  -151 -152 -153 154 155 156 157 158 -159 -160
0.10/0.10	v  161 162 -163 164 165 166 167 168 -169 -170
0.10/0.10	v  171 -172 173 -174 -175 -176 -177 -178 -179 -180
0.10/0.10	v  -181 182 -183 184 185 -186 187 -188 -189 190
0.10/0.10	v  -191 -192 193 -194 195 -196 197 -198 -199 -200
0.10/0.10	v  -201 202 -203 204 205 206 207 208 209 210
0.10/0.10	v  211 -212 213 -214 -215 216 -217 218 219 220
0.10/0.10	v  221 222 -223 224 -225 -226 227 -228 229 230
0.10/0.10	v  -231 232 233 -234 235 -236 -237 -238 239 240
0.10/0.10	v  -241 -242 243 -244 -245 -246 247 248 249 -250
0.10/0.10	v  251 -252 -253 -254 255 -256 257 -258 -259 260
0.10/0.10	v  261 -262 -263 -264 265 -266 -267 -268 269 270
0.10/0.10	v  -271 -272 273 274 275 -276 277 -278 279 -280
0.10/0.10	v  -281 -282 283 -284 -285 -286 287 288 289 -290
0.10/0.10	v  -291 -292 293 -294 295 296 -297 298 299 -300
0.10/0.10	v  -301 302 -303 -304 305 306 307 308 309 310
0.10/0.10	v  311 312 -313 -314 -315 316 317 -318 -319 -320
0.10/0.10	v  321 322 323 324 325 326 327 -328 329 -330
0.10/0.10	v  -331 -332 333 -334 -335 336 337 338 -339 -340
0.10/0.10	v  -341 342 343 344 -345 -346 -347 -348 -349 350
0.10/0.10	v  -351 352 353 -354 355 -356 357 358 -359 -360
0.10/0.10	v  361 -362 -363 364 -365 366 -367 -368 -369 370
0.10/0.10	v  -371 372 -373 374 375 376 377 378 -379 -380
0.10/0.10	v  -381 382 383 -384 385 -386 387 388 -389 390
0.10/0.10	v  391 -392 -393 394 395 396 -397 398 399 400
0.10/0.10	v  401 402 403 404 -405 406 407 -408 -409 -410
0.10/0.10	v  411 412 413 -414 -415 -416 -417 -418 -419 420
0.10/0.10	v  -421 -422 423 424 -425 426 -427 -428 -429 -430
0.10/0.10	v  431 432 433 434 435 436 437 438 -439 440
0.10/0.10	v  441 442 -443 444 445 446 447 -448 449 -450
0.10/0.10	v  451 -452 -453 -454 -455 456 -457 458 -459 460
0.10/0.10	v  -461 -462 -463 464 465 -466 467 468 -469 470
0.10/0.10	v  -471 472 -473 -474 475 -476 477 -478 -479 480
0.10/0.10	v  481 -482 483 -484 485 -486 487 488 489 -490
0.10/0.10	v  491 492 493 494 -495 496 497 498 -499 -500
0.10/0.10	v  501 -502 -503 -504 -505 506 -507 -508 -509 510
0.10/0.10	v  -511 -512 513 514 515 -516 -517 518 519 520
0.10/0.10	v  521 -522 523 -524 525 526 527 528 -529 530
0.10/0.10	v  -531 -532 533 534 535 -536 537 -538 539 -540
0.10/0.10	v  541 -542 -543 544 -545 546 -547 548 549 -550
0.10/0.10	v  -551 552 -553 -554 555 556 557 558 559 -560
0.10/0.10	v  561 562 563 -564 565 -566 -567 568 -569 570
0.10/0.10	v  571 -572 573 574 575 576 577 578 -579 580
0.10/0.10	v  -581 582 583 584 -585 -586 587 588 -589 590
0.10/0.10	v  591 592 -593 -594 595 596 597 598 -599 600
0.10/0.10	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node22/watcher-371790-1177545648 -o ROOT/results/node22/solver-371790-1177545648 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371790-1177545648/sapsrt /tmp/evaluation/371790-1177545648/instance-371790-1177545648.cnf 645993399 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.00 0.08 0.19 3/77 6517
/proc/meminfo: memFree=1776112/2055920 swapFree=4163588/4192956
[pid=6517] ppid=6515 vsize=5156 CPUtime=0
/proc/6517/stat : 6517 (sapsrt) R 6515 6517 6355 0 -1 4194304 166 0 0 0 0 0 0 0 18 0 1 0 202482508 5279744 152 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134712896 0 0 4096 0 0 0 0 17 1 0 0
/proc/6517/statm: 1289 156 82 159 0 1128 0

[startup+0.0107321 s]
/proc/loadavg: 0.00 0.08 0.19 3/77 6517
/proc/meminfo: memFree=1776112/2055920 swapFree=4163588/4192956
[pid=6517] ppid=6515 vsize=5156 CPUtime=0
/proc/6517/stat : 6517 (sapsrt) R 6515 6517 6355 0 -1 4194304 192 0 0 0 0 0 0 0 18 0 1 0 202482508 5279744 177 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134549528 0 0 4096 0 0 0 0 17 1 0 0
/proc/6517/statm: 1289 177 83 159 0 1128 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5156

[startup+0.102746 s]
/proc/loadavg: 0.00 0.08 0.19 3/77 6517
/proc/meminfo: memFree=1776112/2055920 swapFree=4163588/4192956
[pid=6517] ppid=6515 vsize=5156 CPUtime=0.1
/proc/6517/stat : 6517 (sapsrt) R 6515 6517 6355 0 -1 4194304 192 0 0 0 10 0 0 0 18 0 1 0 202482508 5279744 177 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714545 0 0 4096 0 0 0 0 17 1 0 0
/proc/6517/statm: 1289 177 83 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

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

Child status: 10
Real time (s): 0.110871
CPU time (s): 0.108983
CPU user time (s): 0.108983
CPU system time (s): 0
CPU usage (%): 98.2972
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.108983
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 207
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= 8
involuntary context switches= 5

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node22 on Thu Apr 26 00:00:48 UTC 2007

IDJOB= 371790
IDBENCH= 20006
IDSOLVER= 187
FILE ID= node22/371790-1177545648

PBS_JOBID= 4696430

Free space on /tmp= 66497 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v600/unif-k3-r4.261-v600-c2556-S1775402689-01.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371790-1177545648/sapsrt /tmp/evaluation/371790-1177545648/instance-371790-1177545648.cnf  645993399       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-371790-1177545648 -o ROOT/results/node22/solver-371790-1177545648 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371790-1177545648/sapsrt /tmp/evaluation/371790-1177545648/instance-371790-1177545648.cnf  645993399       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  01f9fe21f07697aca0271800a004de34

RANDOM SEED= 645993399

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node22.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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:       1776520 kB
Buffers:         38516 kB
Cached:         164256 kB
SwapCached:       7892 kB
Active:         125552 kB
Inactive:       100328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1776520 kB
SwapTotal:     4192956 kB
SwapFree:      4163588 kB
Dirty:            2244 kB
Writeback:           0 kB
Mapped:          29512 kB
Slab:            39152 kB
Committed_AS:  1964556 kB
PageTables:       1676 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= 66497 MiB

End job on node22 on Thu Apr 26 00:00:49 UTC 2007