Trace number 371997

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 0.019996 0.0219021

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S2094973797-12-SAT.cnf
MD5SUM834f68dca74e3c1d51bff5d400695c42
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
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)

0.00/0.02	c 
0.00/0.02	c UBCSAT version 1.1.0rr
0.00/0.02	c 
0.00/0.02	c http://www.satlib.org/ubcsat
0.00/0.02	c 
0.00/0.02	c ubcsat -h for help
0.00/0.02	c 
0.00/0.02	c  -runs 1 
0.00/0.02	c  -cutoff 4294967295 
0.00/0.02	c  -timeout 0.000000 
0.00/0.02	c  -gtimeout 0.000000 
0.00/0.02	c  -noimprove 0 
0.00/0.02	c  -target 0 
0.00/0.02	c  -wtarget 0.000000 
0.00/0.02	c  -seed 272984601 
0.00/0.02	c  -solve 0 
0.00/0.02	c  -find,-numsol 0 
0.00/0.02	c  -findunique 0 
0.00/0.02	c  -srestart 0 
0.00/0.02	c  -prestart 0.000000 
0.00/0.02	c  -drestart 0 
0.00/0.02	c 
0.00/0.02	c  -alpha 1.126000 
0.00/0.02	c  -rho 0.666000 
0.00/0.02	c  -ps 0.033000 
0.00/0.02	c  -wp 0.060000 
0.00/0.02	c  -sapsthresh -0.100000 
0.00/0.02	c 
0.00/0.02	s SATISFIABLE
0.00/0.02	v  1 -2 3 4 -5 6 -7 8 -9 -10
0.00/0.02	v  -11 12 13 -14 -15 -16 -17 -18 19 20
0.00/0.02	v  -21 22 -23 24 25 -26 -27 28 29 -30
0.00/0.02	v  31 32 33 34 35 -36 -37 38 39 40
0.00/0.02	v  -41 42 43 -44 -45 46 -47 -48 -49 -50
0.00/0.02	v  51 -52 -53 -54 -55 -56 -57 58 -59 60
0.00/0.02	v  -61 62 -63 -64 65 66 67 68 69 -70
0.00/0.02	v  -71 -72 -73 74 -75 76 77 78 79 -80
0.00/0.02	v  -81 -82 83 -84 -85 -86 -87 88 89 90
0.00/0.02	v  -91 -92 93 94 95 96 97 -98 99 -100
0.00/0.02	v  -101 102 -103 -104 -105 -106 -107 -108 -109 -110
0.00/0.02	v  111 -112 113 -114 115 116 -117 -118 119 -120
0.00/0.02	v  -121 -122 -123 124 125 -126 -127 -128 -129 -130
0.00/0.02	v  -131 132 133 -134 -135 136 -137 138 139 140
0.00/0.02	v  141 142 143 144 145 -146 -147 -148 -149 150
0.00/0.02	v  151 -152 -153 154 -155 -156 -157 -158 159 -160
0.00/0.02	v  -161 -162 -163 164 -165 166 -167 -168 -169 -170
0.00/0.02	v  171 172 173 174 -175 176 -177 178 179 180
0.00/0.02	v  -181 182 -183 -184 -185 -186 -187 -188 -189 190
0.00/0.02	v  -191 -192 -193 194 195 -196 197 198 199 200
0.00/0.02	v  201 202 -203 204 -205 -206 207 -208 -209 210
0.00/0.02	v  -211 212 -213 214 -215 -216 217 218 219 -220
0.00/0.02	v  -221 222 223 -224 -225 -226 -227 228 -229 -230
0.00/0.02	v  -231 -232 -233 234 -235 236 237 238 239 240
0.00/0.02	v  -241 -242 243 244 245 246 247 -248 249 -250
0.00/0.02	v  -251 252 -253 -254 -255 256 -257 258 -259 260
0.00/0.02	v  261 262 -263 -264 -265 266 267 -268 269 -270
0.00/0.02	v  -271 272 -273 274 -275 -276 277 278 -279 -280
0.00/0.02	v  281 282 283 284 285 286 287 288 289 -290
0.00/0.02	v  -291 -292 -293 -294 295 296 297 -298 -299 300
0.00/0.02	v  -301 302 -303 -304 -305 -306 307 308 309 310
0.00/0.02	v  -311 312 313 -314 -315 -316 -317 -318 319 -320
0.00/0.02	v  -321 -322 323 -324 325 -326 -327 328 -329 -330
0.00/0.02	v  331 332 -333 -334 335 -336 337 -338 -339 340
0.00/0.02	v  341 -342 -343 -344 -345 -346 -347 -348 349 -350
0.00/0.02	v  -351 352 -353 354 355 -356 -357 358 -359 -360
0.00/0.02	v  -361 -362 363 364 -365 -366 -367 -368 -369 370
0.00/0.02	v  -371 -372 373 374 375 376 377 378 -379 380
0.00/0.02	v  -381 -382 383 384 385 386 -387 -388 -389 390
0.00/0.02	v  391 -392 393 394 -395 396 397 398 399 400
0.00/0.02	v  401 402 -403 404 405 406 -407 -408 -409 410
0.00/0.02	v  411 -412 413 414 415 416 -417 -418 -419 -420
0.00/0.02	v  -421 -422 -423 -424 425 -426 -427 -428 -429 -430
0.00/0.02	v  -431 -432 433 434 435 -436 437 -438 439 440
0.00/0.02	v  441 442 443 444 -445 446 -447 448 -449 -450
0.00/0.02	v  451 -452 453 454 455 -456 457 458 459 460
0.00/0.02	v  461 -462 463 -464 -465 -466 467 468 -469 -470
0.00/0.02	v  -471 -472 473 -474 -475 -476 477 478 479 -480
0.00/0.02	v  481 482 483 -484 485 -486 487 488 -489 -490
0.00/0.02	v  491 492 -493 494 495 496 497 -498 499 500
0.00/0.02	v  -501 -502 -503 -504 505 -506 -507 -508 509 510
0.00/0.02	v  511 512 -513 -514 515 516 -517 518 519 520
0.00/0.02	v  -521 522 -523 524 -525 -526 527 -528 -529 530
0.00/0.02	v  531 -532 533 -534 535 536 537 538 -539 -540
0.00/0.02	v  -541 -542 -543 -544 545 546 -547 -548 -549 -550
0.00/0.02	v  551 -552 -553 -554 555 556 -557 -558 559 -560
0.00/0.02	v  561 -562 563 -564 565 566 567 568 569 -570
0.00/0.02	v  -571 572 573 -574 -575 -576 -577 -578 579 -580
0.00/0.02	v  -581 -582 583 -584 585 -586 587 -588 -589 590
0.00/0.02	v  -591 -592 -593 -594 595 596 -597 -598 -599 -600
0.00/0.02	v  601 602 603 -604 605 -606 -607 608 609 610
0.00/0.02	v  -611 612 613 -614 615 616 617 618 -619 620
0.00/0.02	v  621 622 623 624 -625 626 -627 628 629 630
0.00/0.02	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/node63/watcher-371997-1177549298 -o ROOT/results/node63/solver-371997-1177549298 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371997-1177549298/sapsrt /tmp/evaluation/371997-1177549298/instance-371997-1177549298.cnf 272984601 

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: 0.79 0.92 0.89 3/70 8429
/proc/meminfo: memFree=1655820/2055920 swapFree=4182896/4192956
[pid=8429] ppid=8427 vsize=5156 CPUtime=0
/proc/8429/stat : 8429 (sapsrt) R 8427 8429 7773 0 -1 4194304 188 0 0 0 0 0 0 0 18 0 1 0 230919746 5279744 173 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134549546 0 0 4096 0 0 0 0 17 1 0 0
/proc/8429/statm: 1289 173 83 159 0 1128 0

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

Child status: 10
Real time (s): 0.0219021
CPU time (s): 0.019996
CPU user time (s): 0.018997
CPU system time (s): 0.000999
CPU usage (%): 91.2972
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.018997
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 203
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= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Thu Apr 26 01:01:38 UTC 2007

IDJOB= 371997
IDBENCH= 20286
IDSOLVER= 187
FILE ID= node63/371997-1177549298

PBS_JOBID= 4696541

Free space on /tmp= 66486 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S2094973797-12-SAT.cnf
COMMAND LINE= /tmp/evaluation/371997-1177549298/sapsrt /tmp/evaluation/371997-1177549298/instance-371997-1177549298.cnf  272984601       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-371997-1177549298 -o ROOT/results/node63/solver-371997-1177549298 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371997-1177549298/sapsrt /tmp/evaluation/371997-1177549298/instance-371997-1177549298.cnf  272984601       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  834f68dca74e3c1d51bff5d400695c42

RANDOM SEED= 272984601

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.232
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		: 3000.232
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:       1656292 kB
Buffers:         29120 kB
Cached:         306868 kB
SwapCached:       4556 kB
Active:         187564 kB
Inactive:       159452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1656292 kB
SwapTotal:     4192956 kB
SwapFree:      4182896 kB
Dirty:            2384 kB
Writeback:           0 kB
Mapped:          16840 kB
Slab:            38192 kB
Committed_AS:  2247904 kB
PageTables:       1696 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= 66486 MiB

End job on node63 on Thu Apr 26 01:01:38 UTC 2007