Trace number 1544962

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 12.997 13.0015

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S1916548023-003.cnf
MD5SUM11db2aaf72f0cb9c260a5127c4f6b388
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
Satisfiable
(Un)Satisfiability was proved
Number of variables540
Number of clauses2295
Sum of the clauses size6885
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32295
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 540 variables and 2295 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, 15 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 538 free variables and 2280 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.545
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 145 duplicate clauses
0.00/0.02	c resolvent_look() :: found 73 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 540 variables and 2353 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 540 variabels and 2353 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2353 / 540 ) = 4.36
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: 4053 JD: 24
3.10/3.18	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
12.89/13.00	c solution bin :: 000000010000000000000000.11000000
12.89/13.00	c direction branchin :: current_rights = 5
12.89/13.00	
c |***************************************************************
12.89/13.00	c
12.89/13.00	c main():: nodeCount: 17241
12.89/13.00	c main():: dead ends in main: 293
12.89/13.00	c main():: lookAheadCount: 1693280
12.89/13.00	c main():: unitResolveCount: 274913
12.89/13.00	c main():: time=12.990000
12.89/13.00	c main():: necessary_assignments: 7080
12.89/13.00	c main():: bin_sat: 0, bin_unsat 0
12.89/13.00	c main():: doublelook: #: 90501, succes #: 69900
12.89/13.00	c main():: doublelook: overall 5.528 of all possible doublelooks executed
12.89/13.00	c main():: doublelook: succesrate: 77.237, average DL_trigger: 8097.338
12.89/13.00	c main():: SOLUTION VERIFIED :-)
12.89/13.00	s SATISFIABLE
12.89/13.00	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 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-1544962-1238615024/watcher-1544962-1238615024 -o /tmp/evaluation-result-1544962-1238615024/solver-1544962-1238615024 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544962-1238615024.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 0.99 0.91 3/70 13051
/proc/meminfo: memFree=989576/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=792 CPUtime=0
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1134165005 811008 110 1992294400 134512640 135019032 4294956240 18446744073709551615 134561687 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 198 110 50 123 0 73 0

[startup+0.0762989 s]
/proc/loadavg: 1.00 0.99 0.91 3/70 13051
/proc/meminfo: memFree=989576/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1336 CPUtime=0.07
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 278 0 0 0 7 0 0 0 18 0 1 0 1134165005 1368064 261 1992294400 134512640 135019032 4294956240 18446744073709551615 134538609 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 334 261 73 123 0 209 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1336

[startup+0.101303 s]
/proc/loadavg: 1.00 0.99 0.91 3/70 13051
/proc/meminfo: memFree=989576/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1336 CPUtime=0.1
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 285 0 0 0 10 0 0 0 18 0 1 0 1134165005 1368064 268 1992294400 134512640 135019032 4294956240 18446744073709551615 134538091 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 334 268 73 123 0 209 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1336

[startup+0.301339 s]
/proc/loadavg: 1.00 0.99 0.91 3/70 13051
/proc/meminfo: memFree=989576/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1468 CPUtime=0.3
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 299 0 0 0 30 0 0 0 19 0 1 0 1134165005 1503232 282 1992294400 134512640 135019032 4294956240 18446744073709551615 134527205 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 367 282 73 123 0 242 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1468

[startup+0.702411 s]
/proc/loadavg: 1.00 0.99 0.91 3/70 13051
/proc/meminfo: memFree=989576/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1468 CPUtime=0.7
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 315 0 0 0 70 0 0 0 23 0 1 0 1134165005 1503232 298 1992294400 134512640 135019032 4294956240 18446744073709551615 134526481 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 367 298 73 123 0 242 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1468

[startup+1.50156 s]
/proc/loadavg: 1.00 0.99 0.91 2/71 13052
/proc/meminfo: memFree=988544/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1628 CPUtime=1.5
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 328 0 0 0 150 0 0 0 25 0 1 0 1134165005 1667072 311 1992294400 134512640 135019032 4294956240 18446744073709551615 134526435 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 407 311 73 123 0 282 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1628

[startup+3.10185 s]
/proc/loadavg: 1.00 0.99 0.91 2/71 13052
/proc/meminfo: memFree=988288/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1764 CPUtime=3.1
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 380 0 0 0 310 0 0 0 25 0 1 0 1134165005 1806336 363 1992294400 134512640 135019032 4294956240 18446744073709551615 134526544 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 441 363 73 123 0 316 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1764

[startup+6.30143 s]
/proc/loadavg: 1.00 0.99 0.91 2/71 13052
/proc/meminfo: memFree=988160/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1764 CPUtime=6.29
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 381 0 0 0 629 0 0 0 25 0 1 0 1134165005 1806336 364 1992294400 134512640 135019032 4294956240 18446744073709551615 134542329 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 441 364 73 123 0 316 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1764

[startup+12.7016 s]
/proc/loadavg: 1.08 1.00 0.92 2/71 13052
/proc/meminfo: memFree=988032/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1764 CPUtime=12.69
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 381 0 0 0 1269 0 0 0 25 0 1 0 1134165005 1806336 364 1992294400 134512640 135019032 4294956240 18446744073709551615 134596372 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 441 364 73 123 0 316 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1764

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

[startup+12.9016 s]
/proc/loadavg: 1.08 1.00 0.92 2/71 13052
/proc/meminfo: memFree=988032/2055920 swapFree=4170592/4192956
[pid=13051] ppid=13049 vsize=1764 CPUtime=12.89
/proc/13051/stat : 13051 (march_ks) R 13049 13051 12830 0 -1 4194304 381 0 0 0 1289 0 0 0 25 0 1 0 1134165005 1806336 364 1992294400 134512640 135019032 4294956240 18446744073709551615 134538030 0 0 4096 0 0 0 0 17 0 0 0
/proc/13051/statm: 441 364 73 123 0 316 0
Current children cumulated CPU time (s) 12.89
Current children cumulated vsize (KiB) 1764

Child status: 10
Real time (s): 13.0015
CPU time (s): 12.997
CPU user time (s): 12.995
CPU system time (s): 0.001999
CPU usage (%): 99.9658
Max. virtual memory (cumulated for all children) (KiB): 1764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.995
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= 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= 51

runsolver used 0.012998 second user time and 0.039993 second system time

The end

Launcher Data 

Begin job on node45 at 2009-04-01 21:43:44
IDJOB=1544962
IDBENCH=70708
IDSOLVER=559
FILE ID=node45/1544962-1238615024
PBS_JOBID= 9073598
Free space on /tmp= 66416 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S1916548023-003.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544962-1238615024/watcher-1544962-1238615024 -o /tmp/evaluation-result-1544962-1238615024/solver-1544962-1238615024 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544962-1238615024.cnf            

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

MD5SUM BENCH= 11db2aaf72f0cb9c260a5127c4f6b388
RANDOM SEED=859527098

node45.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		: 3000.285
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		: 3000.285
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:        990056 kB
Buffers:        113312 kB
Cached:         842964 kB
SwapCached:      11568 kB
Active:         224208 kB
Inactive:       745116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        990056 kB
SwapTotal:     4192956 kB
SwapFree:      4170592 kB
Dirty:            3188 kB
Writeback:           0 kB
Mapped:          18724 kB
Slab:            81988 kB
Committed_AS:  2820720 kB
PageTables:       1900 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= 66412 MiB
End job on node45 at 2009-04-01 21:43:57