Trace number 299544

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
saps 2007-02-08SAT 0.093985 0.0954851

General information on the benchmark

Namerandom/OnTreshold/3SAT/v650/
unif-k3-r4.261-v650-c2769-S1172355929-14.SAT.shuffled.cnf
MD5SUM53b587a5b98db42d3f124ef838f3e04f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
Satisfiable
(Un)Satisfiability was proved
Number of variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.09	c 
0.00/0.09	c UBCSAT version 1.1.0rr
0.00/0.09	c 
0.00/0.09	c http://www.satlib.org/ubcsat
0.00/0.09	c 
0.00/0.09	c ubcsat -h for help
0.00/0.09	c 
0.00/0.09	c  -runs 1 
0.00/0.09	c  -cutoff 4294967295 
0.00/0.09	c  -timeout 0.000000 
0.00/0.09	c  -gtimeout 0.000000 
0.00/0.09	c  -noimprove 0 
0.00/0.09	c  -target 0 
0.00/0.09	c  -wtarget 0.000000 
0.00/0.09	c  -seed 789527953 
0.00/0.09	c  -solve 0 
0.00/0.09	c  -find,-numsol 0 
0.00/0.09	c  -findunique 0 
0.00/0.09	c  -srestart 0 
0.00/0.09	c  -prestart 0.000000 
0.00/0.09	c  -drestart 0 
0.00/0.09	c 
0.00/0.09	c  -alpha 1.300000 
0.00/0.09	c  -rho 0.800000 
0.00/0.09	c  -ps 0.050000 
0.00/0.09	c  -wp 0.010000 
0.00/0.09	c  -sapsthresh -0.100000 
0.00/0.09	c 
0.00/0.09	s SATISFIABLE
0.00/0.09	v  -1 -2 -3 4 5 -6 7 8 -9 10
0.00/0.09	v  11 -12 13 -14 15 16 17 18 19 20
0.00/0.09	v  -21 -22 23 -24 25 26 -27 28 -29 -30
0.00/0.09	v  31 -32 33 -34 35 -36 -37 38 39 40
0.00/0.09	v  -41 42 43 -44 -45 -46 -47 48 49 -50
0.00/0.09	v  -51 -52 -53 54 55 56 -57 -58 -59 -60
0.00/0.09	v  61 62 63 -64 65 66 -67 68 69 -70
0.00/0.09	v  -71 72 73 74 75 76 77 -78 -79 80
0.00/0.09	v  81 82 -83 -84 -85 86 -87 88 -89 -90
0.00/0.09	v  91 92 -93 -94 95 96 -97 -98 -99 100
0.00/0.09	v  101 102 103 -104 -105 106 -107 108 -109 -110
0.00/0.09	v  -111 -112 113 -114 -115 116 117 118 -119 120
0.00/0.09	v  121 -122 -123 -124 -125 126 -127 128 -129 130
0.00/0.09	v  131 -132 133 -134 -135 -136 -137 -138 -139 -140
0.00/0.09	v  141 142 -143 -144 -145 146 147 -148 -149 150
0.00/0.09	v  151 -152 153 154 -155 156 -157 158 159 -160
0.00/0.09	v  161 -162 163 164 -165 -166 -167 168 169 170
0.00/0.09	v  -171 -172 173 174 175 176 177 178 -179 -180
0.00/0.09	v  181 -182 -183 184 -185 186 -187 -188 189 190
0.00/0.09	v  -191 -192 193 194 195 -196 197 198 -199 -200
0.00/0.09	v  201 202 203 -204 -205 -206 -207 -208 209 210
0.00/0.09	v  -211 -212 -213 -214 215 -216 217 -218 -219 -220
0.00/0.09	v  221 -222 -223 -224 225 226 227 228 229 230
0.00/0.09	v  -231 232 233 234 -235 -236 237 238 -239 -240
0.00/0.09	v  -241 242 243 -244 -245 -246 -247 -248 -249 -250
0.00/0.09	v  251 -252 253 -254 255 256 -257 -258 259 -260
0.00/0.09	v  -261 262 263 264 265 -266 267 268 -269 -270
0.00/0.09	v  271 -272 -273 -274 -275 -276 -277 278 -279 -280
0.00/0.09	v  -281 282 283 284 285 -286 287 288 289 290
0.00/0.09	v  -291 -292 -293 294 295 -296 -297 298 -299 -300
0.00/0.09	v  -301 -302 -303 304 305 306 307 -308 309 310
0.00/0.09	v  311 -312 313 314 315 316 317 318 319 -320
0.00/0.09	v  321 322 -323 -324 325 -326 327 -328 329 330
0.00/0.09	v  -331 332 333 334 -335 336 337 338 339 -340
0.00/0.09	v  341 -342 343 -344 345 -346 -347 -348 349 350
0.00/0.09	v  -351 352 -353 354 -355 356 -357 -358 -359 360
0.00/0.09	v  -361 -362 -363 -364 -365 -366 -367 368 -369 370
0.00/0.09	v  371 372 373 -374 -375 376 -377 378 -379 380
0.00/0.09	v  381 -382 383 -384 385 -386 387 -388 389 390
0.00/0.09	v  -391 392 393 394 395 396 -397 398 -399 -400
0.00/0.09	v  401 402 -403 404 -405 406 407 -408 -409 410
0.00/0.09	v  411 412 413 414 415 -416 -417 -418 -419 -420
0.00/0.09	v  -421 422 423 -424 -425 426 427 428 -429 430
0.00/0.09	v  431 -432 433 -434 435 -436 -437 -438 -439 440
0.00/0.09	v  -441 442 443 -444 445 -446 447 -448 -449 -450
0.00/0.09	v  -451 452 -453 -454 455 456 -457 -458 -459 -460
0.00/0.09	v  461 -462 463 -464 465 -466 -467 -468 -469 -470
0.00/0.09	v  471 472 -473 474 -475 -476 -477 478 479 -480
0.00/0.09	v  481 -482 -483 -484 485 486 487 488 -489 -490
0.00/0.09	v  -491 -492 -493 -494 495 496 497 498 -499 -500
0.00/0.09	v  -501 -502 503 504 505 -506 -507 508 -509 -510
0.00/0.09	v  511 512 -513 -514 -515 516 517 518 -519 -520
0.00/0.09	v  521 -522 -523 524 -525 -526 527 528 529 530
0.00/0.09	v  531 -532 533 534 -535 -536 537 -538 539 -540
0.00/0.09	v  541 542 -543 544 545 546 -547 -548 549 550
0.00/0.09	v  551 -552 -553 554 555 -556 -557 -558 559 -560
0.00/0.09	v  -561 562 -563 -564 565 -566 -567 -568 -569 570
0.00/0.09	v  -571 572 -573 -574 575 -576 577 578 -579 -580
0.00/0.09	v  -581 -582 583 -584 585 586 587 -588 -589 590
0.00/0.09	v  -591 592 -593 -594 -595 596 597 598 -599 -600
0.00/0.09	v  601 -602 -603 604 -605 -606 -607 608 609 -610
0.00/0.09	v  -611 -612 613 -614 615 -616 617 618 619 620
0.00/0.09	v  -621 -622 -623 624 -625 626 -627 628 -629 -630
0.00/0.09	v  -631 632 633 -634 -635 636 -637 -638 -639 -640
0.00/0.09	v  -641 642 643 644 -645 -646 -647 -648 -649 -650
0.00/0.09	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/node24/watcher-299544-1171873689 -o ROOT/results/node24/solver-299544-1171873689 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299544-1171873689/saps /tmp/evaluation/299544-1171873689/instance-299544-1171873689.cnf 789527953 

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: 1.00 1.00 1.00 3/77 12593
/proc/meminfo: memFree=269264/2055920 swapFree=4144024/4192956
[pid=12593] ppid=12591 vsize=5156 CPUtime=0
/proc/12593/stat : 12593 (saps) R 12591 12593 6827 0 -1 4194304 161 0 0 0 0 0 0 0 18 0 1 0 207323234 5279744 145 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134694565 0 0 4096 0 0 0 0 17 1 0 0
/proc/12593/statm: 1289 145 72 159 0 1128 0

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

Child status: 10
Real time (s): 0.0954851
CPU time (s): 0.093985
CPU user time (s): 0.091986
CPU system time (s): 0.001999
CPU usage (%): 98.429
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.091986
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 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Mon Feb 19 08:28:09 UTC 2007

IDJOB= 299544
IDBENCH= 20013
IDSOLVER= 103
FILE ID= node24/299544-1171873689

PBS_JOBID= 3839656

Free space on /tmp= 66562 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v650/unif-k3-r4.261-v650-c2769-S1172355929-14.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299544-1171873689/saps /tmp/evaluation/299544-1171873689/instance-299544-1171873689.cnf  789527953   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-299544-1171873689 -o ROOT/results/node24/solver-299544-1171873689 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299544-1171873689/saps /tmp/evaluation/299544-1171873689/instance-299544-1171873689.cnf  789527953   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  53b587a5b98db42d3f124ef838f3e04f

RANDOM SEED= 789527953

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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:        269736 kB
Buffers:         44240 kB
Cached:        1635044 kB
SwapCached:       4600 kB
Active:         766720 kB
Inactive:       923128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        269736 kB
SwapTotal:     4192956 kB
SwapFree:      4144024 kB
Dirty:            2200 kB
Writeback:           0 kB
Mapped:          15668 kB
Slab:            81944 kB
Committed_AS:   693776 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= 66562 MiB

End job on node24 on Mon Feb 19 08:28:10 UTC 2007