Trace number 426997

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
DEWSATZ 1A 2007-02-08SAT 0.079987 0.081634

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
MD5SUM8dd20c2b2815f1615e92da9f7d25dd5d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.03/0.07	c   
0.03/0.07	c =====================================================================================================
0.03/0.07	c Copyright (c) 2004 National ICT Australia Limited (NICTA) and applicable third parties.
0.03/0.07	c For details, see the Australian Public Licence B (OZPLB) V1-1, under which this software is licensed.
0.03/0.07	c The OZPLB text is embedded in the source code for this software.
0.03/0.07	c =====================================================================================================
0.03/0.07	c   
0.03/0.07	c solution of Dew_Satz_1a.c 
0.03/0.07	s SATISFIABLE
0.03/0.07	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 -177 179 -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 -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 -541 542 543 544 -545 546 -547 548 -549 -550 551 552 553 554 -555 -556 557 558 -559 560 -561 562 -563 564 -565 -566 -567 -568 569 -570 571 -572 -573 -574 575 -576 -577 -578 -579 -580 581 -582 -583 -584 585 586 -587 588 589 590 -591 592 -593 594 595 596 -597 598 -599 600 -601 602 603 -604 605 606 607 608 -609 610 -611 -612 613 -614 -615 -616 -617 -618 619 -620 -621 622 -623 624 625 626 -627 -628 -629 630 0 
0.03/0.07	c Dew_Satz_1a /tmp/evaluation/426997-1177831417/instance-426997-1177831417.cnf 1  0.060  0.030 7 7 0 7 48 5648 755 5414 510 2323 2323 628 0 0 630

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/node45/watcher-426997-1177831417 -o ROOT/results/node45/solver-426997-1177831417 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426997-1177831417/dewSatz_1a /tmp/evaluation/426997-1177831417/instance-426997-1177831417.cnf 

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: 1.75 1.22 1.07 3/77 21492
/proc/meminfo: memFree=1422744/2055920 swapFree=4157692/4192956
[pid=21492] ppid=21490 vsize=674532 CPUtime=0
/proc/21492/stat : 21492 (dewSatz_1a) R 21490 21492 20115 0 -1 4194304 377 0 0 0 0 0 0 0 18 0 1 0 137987334 690720768 95 18446744073709551615 134512640 134924432 4294956656 18446744073709551615 134520816 0 0 4096 0 0 0 0 17 1 0 0
/proc/21492/statm: 168633 95 42 100 0 168530 0

[startup+0.0411819 s]
/proc/loadavg: 1.75 1.22 1.07 3/77 21492
/proc/meminfo: memFree=1422744/2055920 swapFree=4157692/4192956
[pid=21492] ppid=21490 vsize=674532 CPUtime=0.03
/proc/21492/stat : 21492 (dewSatz_1a) R 21490 21492 20115 0 -1 4194304 9892 0 0 0 2 1 0 0 18 0 1 0 137987334 690720768 106 18446744073709551615 134512640 134924432 4294956656 18446744073709551615 134521203 0 0 4096 0 0 0 0 17 1 0 0
/proc/21492/statm: 168633 106 42 100 0 168530 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 674532

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

[startup+0.0411819 s]
/proc/loadavg: 1.75 1.22 1.07 3/77 21492
/proc/meminfo: memFree=1422744/2055920 swapFree=4157692/4192956
[pid=21492] ppid=21490 vsize=674532 CPUtime=0.03
/proc/21492/stat : 21492 (dewSatz_1a) R 21490 21492 20115 0 -1 4194304 9892 0 0 0 2 1 0 0 18 0 1 0 137987334 690720768 106 18446744073709551615 134512640 134924432 4294956656 18446744073709551615 134521203 0 0 4096 0 0 0 0 17 1 0 0
/proc/21492/statm: 168633 106 42 100 0 168530 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 674532

Child status: 10
Real time (s): 0.081634
CPU time (s): 0.079987
CPU user time (s): 0.067989
CPU system time (s): 0.011998
CPU usage (%): 97.9825
Max. virtual memory (cumulated for all children) (KiB): 674532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.067989
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9963
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= 2

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node45 on Sun Apr 29 07:23:37 UTC 2007

IDJOB= 426997
IDBENCH= 20291
IDSOLVER= 195
FILE ID= node45/426997-1177831417

PBS_JOBID= 4718264

Free space on /tmp= 66563 MiB

SOLVER NAME= DEWSATZ 1A 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/426997-1177831417/dewSatz_1a /tmp/evaluation/426997-1177831417/instance-426997-1177831417.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-426997-1177831417 -o ROOT/results/node45/solver-426997-1177831417 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426997-1177831417/dewSatz_1a /tmp/evaluation/426997-1177831417/instance-426997-1177831417.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 255164059

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node45.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		: 3000.218
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		: 3000.218
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:       1423216 kB
Buffers:         52032 kB
Cached:         485284 kB
SwapCached:      15116 kB
Active:         284524 kB
Inactive:       276592 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1423216 kB
SwapTotal:     4192956 kB
SwapFree:      4157692 kB
Dirty:            1432 kB
Writeback:           0 kB
Mapped:          30152 kB
Slab:            57172 kB
Committed_AS:  1428288 kB
PageTables:       1732 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= 66563 MiB

End job on node45 on Sun Apr 29 07:23:37 UTC 2007