Trace number 1626851

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 7.77582 7.77749

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
MD5SUM4cc7ee2f20081e6ebd36addd568f2c4e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.01	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 520 variables and 2210 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 520 free variables and 2210 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.452
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 164 duplicate clauses
0.00/0.01	c resolvent_look() :: found 90 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 520 variables and 2300 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 520 variabels and 2300 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 2300 / 520 ) = 4.42
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 171 JD: 25
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 |***************************************************************
c |****************************************************************| 1 NC: 8237 JD: 25
5.69/5.79	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
7.69/7.77	c solution bin :: 1000000000000000000010000.0100100
7.69/7.77	c direction branchin :: current_rights = 5
7.69/7.77	
c |*******************************
7.69/7.77	c
7.69/7.77	c main():: nodeCount: 11250
7.69/7.77	c main():: dead ends in main: 229
7.69/7.77	c main():: lookAheadCount: 1067736
7.69/7.77	c main():: unitResolveCount: 169337
7.69/7.77	c main():: time=7.770000
7.69/7.77	c main():: necessary_assignments: 4164
7.69/7.77	c main():: bin_sat: 0, bin_unsat 0
7.69/7.77	c main():: doublelook: #: 55372, succes #: 42113
7.69/7.77	c main():: doublelook: overall 5.356 of all possible doublelooks executed
7.69/7.77	c main():: doublelook: succesrate: 76.055, average DL_trigger: 7953.924
7.69/7.77	c main():: SOLUTION VERIFIED :-)
7.69/7.77	s SATISFIABLE
7.69/7.77	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 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-1626851-1240141070/watcher-1626851-1240141070 -o /tmp/evaluation-result-1626851-1240141070/solver-1626851-1240141070 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1626851-1240141070.cnf 

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): 6000 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: 1.02 1.00 1.00 3/64 27095
/proc/meminfo: memFree=1321680/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=804 CPUtime=0
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 131 0 0 0 0 0 0 0 18 0 1 0 42134105 823296 114 1992294400 134512640 135019032 4294956240 18446744073709551615 134628916 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 201 114 50 123 0 76 0

[startup+0.0498031 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 27095
/proc/meminfo: memFree=1321680/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1336 CPUtime=0.04
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 272 0 0 0 4 0 0 0 18 0 1 0 42134105 1368064 255 1992294400 134512640 135019032 4294956240 18446744073709551615 134526406 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 334 255 73 123 0 209 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1336

[startup+0.101807 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 27095
/proc/meminfo: memFree=1321680/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1336 CPUtime=0.09
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 275 0 0 0 9 0 0 0 18 0 1 0 42134105 1368064 258 1992294400 134512640 135019032 4294956240 18446744073709551615 134527194 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 334 258 73 123 0 209 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1336

[startup+0.301826 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 27095
/proc/meminfo: memFree=1321680/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1468 CPUtime=0.29
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 299 0 0 0 29 0 0 0 19 0 1 0 42134105 1503232 282 1992294400 134512640 135019032 4294956240 18446744073709551615 134564571 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 367 282 73 123 0 242 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1468

[startup+0.701864 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 27095
/proc/meminfo: memFree=1321680/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1468 CPUtime=0.69
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 309 0 0 0 69 0 0 0 23 0 1 0 42134105 1503232 292 1992294400 134512640 135019032 4294956240 18446744073709551615 134538194 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 367 292 73 123 0 242 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1468

[startup+1.50194 s]
/proc/loadavg: 1.02 1.00 1.00 2/65 27096
/proc/meminfo: memFree=1320776/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1468 CPUtime=1.49
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 319 0 0 0 149 0 0 0 25 0 1 0 42134105 1503232 302 1992294400 134512640 135019032 4294956240 18446744073709551615 134577639 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 367 302 73 123 0 242 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1468

[startup+3.10109 s]
/proc/loadavg: 1.02 1.00 1.00 2/65 27096
/proc/meminfo: memFree=1320584/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1600 CPUtime=3.09
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 328 0 0 0 309 0 0 0 25 0 1 0 42134105 1638400 311 1992294400 134512640 135019032 4294956240 18446744073709551615 134526533 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 400 311 73 123 0 275 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1600

[startup+6.30139 s]
/proc/loadavg: 1.02 1.00 1.00 2/65 27096
/proc/meminfo: memFree=1320584/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1600 CPUtime=6.29
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 340 0 0 0 629 0 0 0 25 0 1 0 42134105 1638400 323 1992294400 134512640 135019032 4294956240 18446744073709551615 134538257 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 400 323 73 123 0 275 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1600

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

[startup+7.10147 s]
/proc/loadavg: 1.02 1.00 1.00 2/65 27096
/proc/meminfo: memFree=1320592/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1600 CPUtime=7.09
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 341 0 0 0 709 0 0 0 25 0 1 0 42134105 1638400 324 1992294400 134512640 135019032 4294956240 18446744073709551615 134526418 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 400 324 73 123 0 275 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 1600

[startup+7.50151 s]
/proc/loadavg: 1.02 1.00 1.00 2/65 27096
/proc/meminfo: memFree=1320592/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1600 CPUtime=7.49
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 342 0 0 0 749 0 0 0 25 0 1 0 42134105 1638400 325 1992294400 134512640 135019032 4294956240 18446744073709551615 134538659 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 400 325 73 123 0 275 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 1600

[startup+7.70653 s]
/proc/loadavg: 1.02 1.00 1.00 2/65 27096
/proc/meminfo: memFree=1320592/2055920 swapFree=4192956/4192956
[pid=27095] ppid=27093 vsize=1600 CPUtime=7.69
/proc/27095/stat : 27095 (march_ks) R 27093 27095 26455 0 -1 4194304 347 0 0 0 769 0 0 0 25 0 1 0 42134105 1638400 330 1992294400 134512640 135019032 4294956240 18446744073709551615 134526443 0 0 4096 0 0 0 0 17 0 0 0
/proc/27095/statm: 400 330 73 123 0 275 0
Current children cumulated CPU time (s) 7.69
Current children cumulated vsize (KiB) 1600

Child status: 10
Real time (s): 7.77749
CPU time (s): 7.77582
CPU user time (s): 7.76882
CPU system time (s): 0.006998
CPU usage (%): 99.9785
Max. virtual memory (cumulated for all children) (KiB): 1600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.76882
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 348
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= 25

runsolver used 0.007998 second user time and 0.029995 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-19 13:37:50
IDJOB=1626851
IDBENCH=70660
IDSOLVER=582
FILE ID=node61/1626851-1240141070
PBS_JOBID= 9157898
Free space on /tmp= 66456 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626851-1240141070/watcher-1626851-1240141070 -o /tmp/evaluation-result-1626851-1240141070/solver-1626851-1240141070 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1626851-1240141070.cnf            

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 4cc7ee2f20081e6ebd36addd568f2c4e
RANDOM SEED=1532841929

node61.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		: 3000.216
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		: 3000.216
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:       1322160 kB
Buffers:         83056 kB
Cached:         573008 kB
SwapCached:          0 kB
Active:         311940 kB
Inactive:       356832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1322160 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3304 kB
Writeback:           0 kB
Mapped:          22468 kB
Slab:            51148 kB
Committed_AS:   195440 kB
PageTables:       1368 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66452 MiB
End job on node61 at 2009-04-19 13:37:58