Trace number 299174

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 0.018996 0.019656

General information on the benchmark

Namerandom/OnTreshold/3SAT/v600/
unif-k3-r4.261-v600-c2556-S1496918883-18.SAT.shuffled.cnf
MD5SUMd80e4c0ebc99a45911a06aa336c2bf12
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.018996
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)

0.00/0.01	c 
0.00/0.01	c UBCSAT version 1.1.0rr
0.00/0.01	c 
0.00/0.01	c http://www.satlib.org/ubcsat
0.00/0.01	c 
0.00/0.01	c ubcsat -h for help
0.00/0.01	c 
0.00/0.01	c  -runs 1 
0.00/0.01	c  -cutoff 4294967295 
0.00/0.01	c  -timeout 0.000000 
0.00/0.01	c  -gtimeout 0.000000 
0.00/0.01	c  -noimprove 0 
0.00/0.01	c  -target 0 
0.00/0.01	c  -wtarget 0.000000 
0.00/0.01	c  -seed 900163519 
0.00/0.01	c  -solve 0 
0.00/0.01	c  -find,-numsol 0 
0.00/0.01	c  -findunique 0 
0.00/0.01	c  -srestart 0 
0.00/0.01	c  -prestart 0.000000 
0.00/0.01	c  -drestart 0 
0.00/0.01	c 
0.00/0.01	c  -alpha 1.126000 
0.00/0.01	c  -rho 0.666000 
0.00/0.01	c  -ps 0.033000 
0.00/0.01	c  -wp 0.060000 
0.00/0.01	c  -sapsthresh -0.100000 
0.00/0.01	c 
0.00/0.01	s SATISFIABLE
0.00/0.01	v  -1 2 3 4 5 6 -7 -8 9 10
0.00/0.01	v  -11 12 13 14 15 16 17 -18 -19 -20
0.00/0.01	v  -21 22 23 24 -25 -26 -27 -28 29 -30
0.00/0.01	v  31 -32 -33 -34 35 -36 37 38 39 40
0.00/0.01	v  41 -42 -43 -44 45 -46 -47 48 -49 -50
0.00/0.01	v  51 52 -53 -54 55 -56 -57 -58 59 60
0.00/0.01	v  61 -62 -63 64 65 -66 -67 -68 69 -70
0.00/0.01	v  -71 72 73 -74 75 -76 77 78 79 -80
0.00/0.01	v  81 82 -83 84 -85 -86 -87 -88 89 90
0.00/0.01	v  -91 -92 93 -94 95 96 -97 -98 99 100
0.00/0.01	v  -101 102 103 -104 -105 106 -107 108 -109 110
0.00/0.01	v  111 -112 -113 114 -115 116 117 -118 119 -120
0.00/0.01	v  121 -122 -123 -124 125 -126 -127 -128 -129 130
0.00/0.01	v  -131 132 -133 -134 -135 136 137 -138 139 140
0.00/0.01	v  141 -142 143 144 -145 -146 -147 148 -149 150
0.00/0.01	v  -151 -152 153 -154 -155 156 157 -158 159 160
0.00/0.01	v  161 -162 163 -164 -165 -166 167 168 169 170
0.00/0.01	v  171 172 173 -174 175 176 177 -178 179 180
0.00/0.01	v  -181 182 183 184 185 186 187 -188 -189 190
0.00/0.01	v  191 192 -193 -194 -195 -196 197 198 199 -200
0.00/0.01	v  201 -202 203 -204 205 -206 -207 208 -209 210
0.00/0.01	v  211 212 -213 214 215 -216 217 218 219 -220
0.00/0.01	v  221 222 -223 -224 225 -226 227 -228 -229 230
0.00/0.01	v  231 232 233 234 -235 -236 -237 -238 -239 -240
0.00/0.01	v  241 -242 -243 244 245 246 247 -248 -249 250
0.00/0.01	v  -251 -252 -253 254 -255 256 -257 -258 -259 -260
0.00/0.01	v  -261 262 -263 -264 -265 266 -267 -268 -269 -270
0.00/0.01	v  -271 272 273 -274 275 276 277 -278 -279 -280
0.00/0.01	v  281 282 -283 284 285 -286 -287 -288 -289 -290
0.00/0.01	v  291 292 -293 -294 -295 -296 -297 298 299 -300
0.00/0.01	v  -301 302 303 -304 305 306 -307 -308 -309 310
0.00/0.01	v  -311 -312 -313 -314 315 316 -317 318 -319 -320
0.00/0.01	v  321 322 323 -324 325 326 327 -328 329 330
0.00/0.01	v  -331 -332 333 -334 -335 -336 337 338 339 340
0.00/0.01	v  -341 -342 343 344 345 346 347 -348 349 -350
0.00/0.01	v  -351 352 -353 -354 -355 356 357 358 -359 -360
0.00/0.01	v  361 -362 -363 -364 -365 366 -367 368 -369 370
0.00/0.01	v  -371 -372 -373 -374 375 376 377 -378 379 -380
0.00/0.01	v  -381 382 383 -384 385 386 -387 388 -389 390
0.00/0.01	v  -391 392 -393 -394 -395 -396 397 -398 399 -400
0.00/0.01	v  401 -402 -403 -404 405 406 407 408 -409 -410
0.00/0.01	v  411 -412 413 414 -415 -416 -417 418 -419 420
0.00/0.01	v  -421 422 -423 -424 -425 -426 427 -428 429 -430
0.00/0.01	v  431 -432 -433 434 -435 436 -437 438 439 -440
0.00/0.01	v  -441 -442 -443 -444 -445 446 -447 448 449 450
0.00/0.01	v  -451 -452 453 -454 -455 -456 457 458 -459 -460
0.00/0.01	v  461 -462 463 -464 465 466 467 468 -469 470
0.00/0.01	v  -471 -472 -473 474 475 -476 -477 478 -479 480
0.00/0.01	v  481 -482 483 484 485 -486 487 -488 489 -490
0.00/0.01	v  -491 -492 -493 -494 495 496 497 -498 -499 -500
0.00/0.01	v  501 -502 -503 -504 505 -506 507 -508 -509 -510
0.00/0.01	v  -511 -512 513 -514 515 -516 517 518 -519 -520
0.00/0.01	v  -521 522 -523 524 -525 526 -527 528 -529 -530
0.00/0.01	v  -531 -532 533 -534 -535 -536 537 -538 -539 -540
0.00/0.01	v  -541 542 -543 544 545 -546 547 548 -549 550
0.00/0.01	v  551 552 553 554 -555 -556 557 -558 559 560
0.00/0.01	v  561 -562 -563 564 565 566 567 -568 569 570
0.00/0.01	v  -571 -572 -573 -574 -575 576 577 -578 579 -580
0.00/0.01	v  581 582 -583 -584 585 -586 -587 588 589 590
0.00/0.01	v  -591 592 -593 -594 595 596 597 598 -599 -600
0.00/0.01	v  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/node68/watcher-299174-1171867437 -o ROOT/results/node68/solver-299174-1171867437 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299174-1171867437/sapsrt /tmp/evaluation/299174-1171867437/instance-299174-1171867437.cnf 900163519 

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 3/64 15450
/proc/meminfo: memFree=727088/2055920 swapFree=4183892/4192956
[pid=15450] ppid=15448 vsize=5156 CPUtime=0
/proc/15450/stat : 15450 (sapsrt) R 15448 15450 15387 0 -1 4194304 171 0 0 0 0 0 0 0 18 0 1 0 206701379 5279744 155 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134794461 0 0 4096 0 0 0 0 17 1 0 0
/proc/15450/statm: 1289 158 82 159 0 1128 0

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

Child status: 10
Real time (s): 0.019656
CPU time (s): 0.018996
CPU user time (s): 0.016997
CPU system time (s): 0.001999
CPU usage (%): 96.6423
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.016997
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= 208
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 node68 on Mon Feb 19 06:43:58 UTC 2007

IDJOB= 299174
IDBENCH= 20004
IDSOLVER= 102
FILE ID= node68/299174-1171867437

PBS_JOBID= 3839771

Free space on /tmp= 66562 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v600/unif-k3-r4.261-v600-c2556-S1496918883-18.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299174-1171867437/sapsrt /tmp/evaluation/299174-1171867437/instance-299174-1171867437.cnf  900163519       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-299174-1171867437 -o ROOT/results/node68/solver-299174-1171867437 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299174-1171867437/sapsrt /tmp/evaluation/299174-1171867437/instance-299174-1171867437.cnf  900163519       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  d80e4c0ebc99a45911a06aa336c2bf12

RANDOM SEED= 900163519

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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		: 3000.234
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		: 3000.234
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:        727496 kB
Buffers:         50176 kB
Cached:        1155844 kB
SwapCached:       3088 kB
Active:         817296 kB
Inactive:       398068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        727496 kB
SwapTotal:     4192956 kB
SwapFree:      4183892 kB
Dirty:            2372 kB
Writeback:           0 kB
Mapped:          15168 kB
Slab:            99180 kB
Committed_AS:   626412 kB
PageTables:       1380 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= 66562 MiB

End job on node68 on Mon Feb 19 06:43:58 UTC 2007