Trace number 310576

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
picosat 535SAT 1.14882 1.15045

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 benchmark0.012997
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)

1.12/1.14	s SATISFIABLE
1.12/1.14	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
1.12/1.14	v 27 -28 29 -30 -31 32 -33 -34 -35 36 37 38 -39 -40 -41 42 43 44 45 46 47 -48
1.12/1.14	v -49 -50 51 -52 53 54 -55 -56 57 58 -59 -60 61 -62 63 64 -65 66 -67 -68 -69 70
1.12/1.14	v 71 72 73 74 -75 -76 77 -78 79 -80 -81 -82 -83 -84 -85 86 -87 88 89 -90 91 -92
1.12/1.14	v 93 -94 95 -96 -97 98 99 100 -101 -102 103 -104 105 -106 107 108 -109 -110 111
1.12/1.14	v 112 113 114 115 -116 117 118 119 -120 -121 -122 -123 -124 125 -126 -127 -128
1.12/1.14	v -129 130 131 132 133 -134 -135 -136 -137 138 139 140 141 142 143 -144 145 146
1.12/1.14	v 147 -148 -149 150 151 152 153 -154 -155 156 -157 -158 -159 160 161 162 -163
1.12/1.14	v 164 -165 -166 -167 -168 -169 170 -171 -172 173 174 175 -176 177 178 179 -180
1.12/1.14	v -181 182 183 -184 185 -186 187 -188 189 -190 191 -192 -193 194 195 196 197
1.12/1.14	v -198 199 200 201 -202 -203 204 205 -206 207 -208 -209 210 -211 -212 213 -214
1.12/1.14	v -215 216 217 -218 219 -220 -221 -222 -223 -224 225 -226 -227 -228 229 -230
1.12/1.14	v 231 232 -233 234 -235 236 237 -238 -239 -240 241 242 243 244 -245 -246 247
1.12/1.14	v 248 249 250 -251 252 253 -254 255 256 -257 258 259 260 -261 -262 -263 -264
1.12/1.14	v 265 -266 -267 -268 269 270 271 -272 273 -274 -275 276 277 -278 -279 -280 -281
1.12/1.14	v -282 -283 284 285 -286 -287 -288 -289 -290 291 292 -293 294 295 -296 297 298
1.12/1.14	v 299 -300 301 302 303 -304 305 306 -307 -308 309 -310 -311 -312 313 -314 315
1.12/1.14	v 316 -317 -318 319 -320 -321 -322 -323 324 325 326 327 328 -329 -330 -331 -332
1.12/1.14	v 333 -334 -335 336 337 338 339 340 -341 342 -343 -344 -345 346 -347 -348 -349
1.12/1.14	v -350 351 352 353 -354 -355 -356 -357 -358 -359 360 -361 -362 363 364 365 366
1.12/1.14	v 367 -368 369 370 -371 -372 373 -374 375 -376 -377 378 -379 380 -381 -382 383
1.12/1.14	v 384 385 -386 -387 388 389 390 -391 -392 -393 394 -395 -396 -397 -398 -399
1.12/1.14	v -400 401 -402 -403 404 -405 406 -407 -408 -409 -410 411 412 413 -414 415 -416
1.12/1.14	v -417 418 419 420 -421 422 -423 -424 425 -426 -427 -428 429 430 431 432 433
1.12/1.14	v 434 -435 -436 437 -438 -439 -440 441 -442 443 -444 -445 446 -447 -448 -449
1.12/1.14	v -450 451 452 -453 454 -455 -456 -457 -458 459 460 461 -462 463 464 465 -466
1.12/1.14	v -467 468 -469 -470 471 472 -473 -474 475 -476 -477 -478 -479 -480 -481 -482
1.12/1.14	v 483 -484 485 -486 -487 -488 489 490 -491 -492 -493 -494 -495 -496 -497 -498
1.12/1.14	v 499 500 -501 502 503 -504 -505 -506 -507 508 509 510 511 512 -513 514 -515
1.12/1.14	v 516 -517 518 -519 -520 -521 522 523 -524 525 526 -527 528 529 -530 531 532
1.12/1.14	v -533 -534 -535 536 -537 -538 -539 -540 541 542 -543 -544 545 546 -547 548 549
1.12/1.14	v 550 551 -552 -553 554 -555 -556 -557 -558 -559 560 -561 562 -563 -564 -565
1.12/1.14	v -566 -567 568 569 -570 571 572 573 574 575 -576 -577 -578 -579 -580 -581 -582
1.12/1.14	v -583 -584 585 586 -587 588 589 -590 -591 -592 -593 -594 595 596 -597 598 599
1.12/1.14	v -600 -601 602 603 604 605 606 607 -608 -609 -610 -611 612 613 614 -615 -616
1.12/1.14	v -617 618 -619 -620 621 622 -623 -624 625 626 627 -628 -629 630 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-310576-1172560322 -o ROOT/results/node2/solver-310576-1172560322 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310576-1172560322/picosat /tmp/evaluation/310576-1172560322/instance-310576-1172560322.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.98 0.99 3/77 28343
/proc/meminfo: memFree=1673896/2055920 swapFree=4192812/4192956
[pid=28343] ppid=28341 vsize=568 CPUtime=0
/proc/28343/stat : 28343 (picosat) R 28341 28343 27407 0 -1 4194304 81 0 0 0 0 0 0 0 18 0 1 0 275987213 581632 66 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/28343/statm: 142 66 40 102 0 37 0

[startup+0.106475 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28343
/proc/meminfo: memFree=1673896/2055920 swapFree=4192812/4192956
[pid=28343] ppid=28341 vsize=840 CPUtime=0.1
/proc/28343/stat : 28343 (picosat) R 28341 28343 27407 0 -1 4194304 142 0 0 0 9 1 0 0 18 0 1 0 275987213 860160 125 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134522836 0 0 4096 0 0 0 0 17 1 0 0
/proc/28343/statm: 210 125 48 102 0 105 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 840

[startup+0.514517 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28343
/proc/meminfo: memFree=1673896/2055920 swapFree=4192812/4192956
[pid=28343] ppid=28341 vsize=840 CPUtime=0.51
/proc/28343/stat : 28343 (picosat) R 28341 28343 27407 0 -1 4194304 151 0 0 0 50 1 0 0 22 0 1 0 275987213 860160 134 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529191 0 0 4096 0 0 0 0 17 1 0 0
/proc/28343/statm: 210 134 48 102 0 105 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 840

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

[startup+0.82055 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28343
/proc/meminfo: memFree=1673896/2055920 swapFree=4192812/4192956
[pid=28343] ppid=28341 vsize=840 CPUtime=0.81
/proc/28343/stat : 28343 (picosat) R 28341 28343 27407 0 -1 4194304 159 0 0 0 80 1 0 0 25 0 1 0 275987213 860160 142 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529482 0 0 4096 0 0 0 0 17 1 0 0
/proc/28343/statm: 210 142 48 102 0 105 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 840

[startup+1.02457 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28343
/proc/meminfo: memFree=1673896/2055920 swapFree=4192812/4192956
[pid=28343] ppid=28341 vsize=840 CPUtime=1.02
/proc/28343/stat : 28343 (picosat) R 28341 28343 27407 0 -1 4194304 164 0 0 0 101 1 0 0 25 0 1 0 275987213 860160 147 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529868 0 0 4096 0 0 0 0 17 1 0 0
/proc/28343/statm: 210 147 48 102 0 105 0
Current children cumulated CPU time (s) 1.02
Current children cumulated vsize (KiB) 840

[startup+1.12658 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 28344
/proc/meminfo: memFree=1673440/2055920 swapFree=4192812/4192956
[pid=28343] ppid=28341 vsize=840 CPUtime=1.12
/proc/28343/stat : 28343 (picosat) R 28341 28343 27407 0 -1 4194304 164 0 0 0 111 1 0 0 25 0 1 0 275987213 860160 147 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529133 0 0 4096 0 0 0 0 17 1 0 0
/proc/28343/statm: 210 147 48 102 0 105 0
Current children cumulated CPU time (s) 1.12
Current children cumulated vsize (KiB) 840

Child status: 10
Real time (s): 1.15045
CPU time (s): 1.14882
CPU user time (s): 1.13783
CPU system time (s): 0.010998
CPU usage (%): 99.8583
Max. virtual memory (cumulated for all children) (KiB): 840

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.13783
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 170
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= 23

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Feb 27 07:12:03 UTC 2007

IDJOB= 310576
IDBENCH= 20291
IDSOLVER= 106
FILE ID= node2/310576-1172560322

PBS_JOBID= 3971655

Free space on /tmp= 66558 MiB

SOLVER NAME= picosat 535
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/310576-1172560322/picosat /tmp/evaluation/310576-1172560322/instance-310576-1172560322.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-310576-1172560322 -o ROOT/results/node2/solver-310576-1172560322 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310576-1172560322/picosat /tmp/evaluation/310576-1172560322/instance-310576-1172560322.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 83019071

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:       1674304 kB
Buffers:         47684 kB
Cached:         204052 kB
SwapCached:          0 kB
Active:         248648 kB
Inactive:        62948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1674304 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             700 kB
Writeback:           0 kB
Mapped:          78784 kB
Slab:            55476 kB
Committed_AS:  1298020 kB
PageTables:       1812 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= 66558 MiB

End job on node2 on Tue Feb 27 07:12:04 UTC 2007