Trace number 1544908

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SAT07 reference solver: March KS 2007-02-08SAT 0.718889 0.719707

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S809967194-078.cnf
MD5SUMed095e38b0a3e5af1f48e3823e5c45cb
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 variables560
Number of clauses2380
Sum of the clauses size7140
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32380
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.02	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 560 variables and 2380 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 11 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 559 free variables and 2369 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.488
0.00/0.02	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.02	c using 3-SAT heuristics (occurence based diff)
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 176 duplicate clauses
0.00/0.02	c resolvent_look() :: found 84 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 560 variables and 2453 clauses.
0.00/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.02	c transformTo3SAT():: the transformation yielded 560 variabels and 2453 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2453 / 560 ) = 4.38
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c suggested doublelook initial :: 0
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 170 JD: 34
0.09/0.13	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
0.69/0.71	c solution bin :: 00000000000000000000000000000100
0.69/0.71	c direction branchin :: current_rights = 2
0.69/0.71	
c |***************************************************************
0.69/0.71	c
0.69/0.71	c main():: nodeCount: 1299
0.69/0.71	c main():: dead ends in main: 9
0.69/0.71	c main():: lookAheadCount: 130941
0.69/0.71	c main():: unitResolveCount: 13970
0.69/0.71	c main():: time=0.710000
0.69/0.71	c main():: necessary_assignments: 307
0.69/0.71	c main():: bin_sat: 0, bin_unsat 0
0.69/0.71	c main():: doublelook: #: 4635, succes #: 3063
0.69/0.71	c main():: doublelook: overall 3.605 of all possible doublelooks executed
0.69/0.71	c main():: doublelook: succesrate: 66.084, average DL_trigger: 7740.673
0.69/0.71	c main():: SOLUTION VERIFIED :-)
0.69/0.71	s SATISFIABLE
0.69/0.71	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 -177 178 179 180 -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 -274 275 276 277 -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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1544908-1238614976/watcher-1544908-1238614976 -o /tmp/evaluation-result-1544908-1238614976/solver-1544908-1238614976 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544908-1238614976.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.07 1.02 0.94 3/69 22483
/proc/meminfo: memFree=1487056/2055920 swapFree=4171336/4192956
[pid=22483] ppid=22481 vsize=796 CPUtime=0
/proc/22483/stat : 22483 (march_ks) R 22481 22483 22154 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134160781 815104 111 1992294400 134512640 135019032 4294956240 18446744073709551615 134561718 0 0 4096 0 0 0 0 17 0 0 0
/proc/22483/statm: 199 111 50 123 0 74 0

[startup+0.0784679 s]
/proc/loadavg: 1.07 1.02 0.94 3/69 22483
/proc/meminfo: memFree=1487056/2055920 swapFree=4171336/4192956
[pid=22483] ppid=22481 vsize=1352 CPUtime=0.07
/proc/22483/stat : 22483 (march_ks) R 22481 22483 22154 0 -1 4194304 289 0 0 0 7 0 0 0 18 0 1 0 1134160781 1384448 272 1992294400 134512640 135019032 4294956240 18446744073709551615 134526526 0 0 4096 0 0 0 0 17 0 0 0
/proc/22483/statm: 338 272 73 123 0 213 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1352

[startup+0.101469 s]
/proc/loadavg: 1.07 1.02 0.94 3/69 22483
/proc/meminfo: memFree=1487056/2055920 swapFree=4171336/4192956
[pid=22483] ppid=22481 vsize=1484 CPUtime=0.09
/proc/22483/stat : 22483 (march_ks) R 22481 22483 22154 0 -1 4194304 292 0 0 0 9 0 0 0 18 0 1 0 1134160781 1519616 275 1992294400 134512640 135019032 4294956240 18446744073709551615 134542346 0 0 4096 0 0 0 0 17 0 0 0
/proc/22483/statm: 371 275 73 123 0 246 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1484

[startup+0.30149 s]
/proc/loadavg: 1.07 1.02 0.94 3/69 22483
/proc/meminfo: memFree=1487056/2055920 swapFree=4171336/4192956
[pid=22483] ppid=22481 vsize=1484 CPUtime=0.29
/proc/22483/stat : 22483 (march_ks) R 22481 22483 22154 0 -1 4194304 307 0 0 0 29 0 0 0 20 0 1 0 1134160781 1519616 290 1992294400 134512640 135019032 4294956240 18446744073709551615 134596412 0 0 4096 0 0 0 0 17 0 0 0
/proc/22483/statm: 371 290 73 123 0 246 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1484

[startup+0.701529 s]
/proc/loadavg: 1.07 1.02 0.94 3/69 22483
/proc/meminfo: memFree=1487056/2055920 swapFree=4171336/4192956
[pid=22483] ppid=22481 vsize=1484 CPUtime=0.69
/proc/22483/stat : 22483 (march_ks) R 22481 22483 22154 0 -1 4194304 322 0 0 0 69 0 0 0 23 0 1 0 1134160781 1519616 305 1992294400 134512640 135019032 4294956240 18446744073709551615 134526435 0 0 4096 0 0 0 0 17 0 0 0
/proc/22483/statm: 371 305 73 123 0 246 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1484

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

Child status: 10
Real time (s): 0.719707
CPU time (s): 0.718889
CPU user time (s): 0.71789
CPU system time (s): 0.000999
CPU usage (%): 99.8863
Max. virtual memory (cumulated for all children) (KiB): 1484

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.71789
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= 325
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= 2
involuntary context switches= 3

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-01 21:42:56
IDJOB=1544908
IDBENCH=70681
IDSOLVER=559
FILE ID=node44/1544908-1238614976
PBS_JOBID= 9073599
Free space on /tmp= 66400 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S809967194-078.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544908-1238614976/watcher-1544908-1238614976 -o /tmp/evaluation-result-1544908-1238614976/solver-1544908-1238614976 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544908-1238614976.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ed095e38b0a3e5af1f48e3823e5c45cb
RANDOM SEED=769202689

node44.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.241
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		: 3000.241
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:       1487600 kB
Buffers:         96156 kB
Cached:         364968 kB
SwapCached:      11068 kB
Active:         227732 kB
Inactive:       245972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1487600 kB
SwapTotal:     4192956 kB
SwapFree:      4171336 kB
Dirty:            3312 kB
Writeback:           0 kB
Mapped:          18220 kB
Slab:            80072 kB
Committed_AS:  2832952 kB
PageTables:       1796 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= 66396 MiB
End job on node44 at 2009-04-01 21:42:57