Trace number 1544864

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 8.16576 8.16733

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S621134782-041.cnf
MD5SUM09a6dc57cba44ea6f55eca37108c958d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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, 13 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 518 free variables and 2197 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.480
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 171 duplicate clauses
0.00/0.02	c resolvent_look() :: found 90 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 520 variables and 2287 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 520 variabels and 2287 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2287 / 520 ) = 4.40
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: 151 JD: 31
0.09/0.11	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: 2522 JD: 31
1.50/1.58	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
8.09/8.16	c solution bin :: 0000000000000010001000000000000.0
8.09/8.16	c direction branchin :: current_rights = 6
8.09/8.16	
c |***************************************************************
8.09/8.16	c
8.09/8.16	c main():: nodeCount: 14067
8.09/8.16	c main():: dead ends in main: 171
8.09/8.16	c main():: lookAheadCount: 1330720
8.09/8.16	c main():: unitResolveCount: 170066
8.09/8.16	c main():: time=8.160000
8.09/8.16	c main():: necessary_assignments: 3732
8.09/8.16	c main():: bin_sat: 0, bin_unsat 0
8.09/8.16	c main():: doublelook: #: 58020, succes #: 41696
8.09/8.16	c main():: doublelook: overall 4.472 of all possible doublelooks executed
8.09/8.16	c main():: doublelook: succesrate: 71.865, average DL_trigger: 7573.334
8.09/8.16	c main():: SOLUTION VERIFIED :-)
8.09/8.16	s SATISFIABLE
8.09/8.16	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-1544864-1238614876/watcher-1544864-1238614876 -o /tmp/evaluation-result-1544864-1238614876/solver-1544864-1238614876 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544864-1238614876.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: 1.00 1.00 0.94 3/64 23049
/proc/meminfo: memFree=1360568/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=804 CPUtime=0
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 131 0 0 0 0 0 0 0 18 0 1 0 1134152889 823296 114 1992294400 134512640 135019032 4294956240 18446744073709551615 134677352 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 201 114 50 123 0 76 0

[startup+0.02114 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 23049
/proc/meminfo: memFree=1360568/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1332 CPUtime=0.01
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 263 0 0 0 1 0 0 0 18 0 1 0 1134152889 1363968 246 1992294400 134512640 135019032 4294956240 18446744073709551615 134677364 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 333 246 73 123 0 208 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1332

[startup+0.101144 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 23049
/proc/meminfo: memFree=1360568/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1332 CPUtime=0.09
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 279 0 0 0 9 0 0 0 18 0 1 0 1134152889 1363968 262 1992294400 134512640 135019032 4294956240 18446744073709551615 134677364 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 333 262 73 123 0 208 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1332

[startup+0.301156 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 23049
/proc/meminfo: memFree=1360568/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1464 CPUtime=0.29
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 294 0 0 0 29 0 0 0 19 0 1 0 1134152889 1499136 277 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 366 277 73 123 0 241 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1464

[startup+0.701181 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 23049
/proc/meminfo: memFree=1360568/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1464 CPUtime=0.69
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 307 0 0 0 69 0 0 0 23 0 1 0 1134152889 1499136 290 1992294400 134512640 135019032 4294956240 18446744073709551615 134542782 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 366 290 73 123 0 241 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1464

[startup+1.50223 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 23050
/proc/meminfo: memFree=1359728/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1464 CPUtime=1.5
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 316 0 0 0 150 0 0 0 25 0 1 0 1134152889 1499136 299 1992294400 134512640 135019032 4294956240 18446744073709551615 134526481 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 366 299 73 123 0 241 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1464

[startup+3.10133 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 23050
/proc/meminfo: memFree=1359536/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1616 CPUtime=3.09
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 341 0 0 0 309 0 0 0 25 0 1 0 1134152889 1654784 324 1992294400 134512640 135019032 4294956240 18446744073709551615 134564805 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 404 324 73 123 0 279 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1616

[startup+6.30153 s]
/proc/loadavg: 1.08 1.02 0.94 2/65 23050
/proc/meminfo: memFree=1359280/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1616 CPUtime=6.29
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 351 0 0 0 629 0 0 0 25 0 1 0 1134152889 1654784 334 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 404 334 73 123 0 279 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1616

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

[startup+7.10158 s]
/proc/loadavg: 1.08 1.02 0.94 2/65 23050
/proc/meminfo: memFree=1359280/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1616 CPUtime=7.09
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 355 0 0 0 709 0 0 0 25 0 1 0 1134152889 1654784 338 1992294400 134512640 135019032 4294956240 18446744073709551615 134564571 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 404 338 73 123 0 279 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 1616

[startup+7.90163 s]
/proc/loadavg: 1.08 1.02 0.94 2/65 23050
/proc/meminfo: memFree=1359216/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1752 CPUtime=7.89
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 381 0 0 0 789 0 0 0 25 0 1 0 1134152889 1794048 364 1992294400 134512640 135019032 4294956240 18446744073709551615 134538131 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 438 364 73 123 0 313 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 1752

[startup+8.10164 s]
/proc/loadavg: 1.08 1.02 0.94 2/65 23050
/proc/meminfo: memFree=1359216/2055920 swapFree=4177944/4192956
[pid=23049] ppid=23047 vsize=1752 CPUtime=8.09
/proc/23049/stat : 23049 (march_ks) R 23047 23049 22836 0 -1 4194304 382 0 0 0 809 0 0 0 25 0 1 0 1134152889 1794048 365 1992294400 134512640 135019032 4294956240 18446744073709551615 134526473 0 0 4096 0 0 0 0 17 0 0 0
/proc/23049/statm: 438 365 73 123 0 313 0
Current children cumulated CPU time (s) 8.09
Current children cumulated vsize (KiB) 1752

Child status: 10
Real time (s): 8.16733
CPU time (s): 8.16576
CPU user time (s): 8.16276
CPU system time (s): 0.002999
CPU usage (%): 99.9807
Max. virtual memory (cumulated for all children) (KiB): 1752

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.16276
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 383
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= 14

runsolver used 0.011998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node29 at 2009-04-01 21:41:16
IDJOB=1544864
IDBENCH=70659
IDSOLVER=559
FILE ID=node29/1544864-1238614876
PBS_JOBID= 9073613
Free space on /tmp= 66472 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-S621134782-041.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544864-1238614876/watcher-1544864-1238614876 -o /tmp/evaluation-result-1544864-1238614876/solver-1544864-1238614876 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544864-1238614876.cnf            

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

MD5SUM BENCH= 09a6dc57cba44ea6f55eca37108c958d
RANDOM SEED=2126326608

node29.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		: 3000.234
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:       1361112 kB
Buffers:        103092 kB
Cached:         487744 kB
SwapCached:       8856 kB
Active:         228704 kB
Inactive:       372636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1361112 kB
SwapTotal:     4192956 kB
SwapFree:      4177944 kB
Dirty:            2908 kB
Writeback:           0 kB
Mapped:          16228 kB
Slab:            79424 kB
Committed_AS:  3189780 kB
PageTables:       1476 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= 66468 MiB
End job on node29 at 2009-04-01 21:41:24