Trace number 1544904

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 1.3478 1.34899

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S786890012-057.cnf
MD5SUMa1a4d8d82b0d4daf47cfa00c0df86ca5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
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, 7 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 559 free variables and 2373 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.527
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 170 duplicate clauses
0.00/0.02	c resolvent_look() :: found 107 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 560 variables and 2480 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 2480 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2480 / 560 ) = 4.43
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: 1526 JD: 22
1.10/1.16	c |----------------------------------------------------------------|
1.30/1.34	c solution bin :: 1000000000000000000000.0000001000
1.30/1.34	c direction branchin :: current_rights = 5
1.30/1.34	
c |
1.30/1.34	c
1.30/1.34	c main():: nodeCount: 1824
1.30/1.34	c main():: dead ends in main: 18
1.30/1.34	c main():: lookAheadCount: 184125
1.30/1.34	c main():: unitResolveCount: 24952
1.30/1.34	c main():: time=1.340000
1.30/1.34	c main():: necessary_assignments: 597
1.30/1.34	c main():: bin_sat: 0, bin_unsat 0
1.30/1.34	c main():: doublelook: #: 9310, succes #: 7193
1.30/1.34	c main():: doublelook: overall 5.208 of all possible doublelooks executed
1.30/1.34	c main():: doublelook: succesrate: 77.261, average DL_trigger: 8249.186
1.30/1.34	c main():: SOLUTION VERIFIED :-)
1.30/1.34	s SATISFIABLE
1.30/1.34	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-1544904-1238614969/watcher-1544904-1238614969 -o /tmp/evaluation-result-1544904-1238614969/solver-1544904-1238614969 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544904-1238614969.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 22427
/proc/meminfo: memFree=1487264/2055920 swapFree=4171336/4192956
[pid=22427] ppid=22425 vsize=796 CPUtime=0
/proc/22427/stat : 22427 (march_ks) R 22425 22427 22154 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134160093 815104 111 1992294400 134512640 135019032 4294956240 18446744073709551615 134677352 0 0 4096 0 0 0 0 17 0 0 0
/proc/22427/statm: 199 111 50 123 0 74 0

[startup+0.0895811 s]
/proc/loadavg: 1.07 1.02 0.94 3/69 22427
/proc/meminfo: memFree=1487264/2055920 swapFree=4171336/4192956
[pid=22427] ppid=22425 vsize=1352 CPUtime=0.08
/proc/22427/stat : 22427 (march_ks) R 22425 22427 22154 0 -1 4194304 287 0 0 0 8 0 0 0 18 0 1 0 1134160093 1384448 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134526432 0 0 4096 0 0 0 0 17 0 0 0
/proc/22427/statm: 338 270 73 123 0 213 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1352

[startup+0.101582 s]
/proc/loadavg: 1.07 1.02 0.94 3/69 22427
/proc/meminfo: memFree=1487264/2055920 swapFree=4171336/4192956
[pid=22427] ppid=22425 vsize=1352 CPUtime=0.1
/proc/22427/stat : 22427 (march_ks) R 22425 22427 22154 0 -1 4194304 288 0 0 0 10 0 0 0 18 0 1 0 1134160093 1384448 271 1992294400 134512640 135019032 4294956240 18446744073709551615 134538162 0 0 4096 0 0 0 0 17 0 0 0
/proc/22427/statm: 338 271 73 123 0 213 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1352

[startup+0.301602 s]
/proc/loadavg: 1.07 1.02 0.94 3/69 22427
/proc/meminfo: memFree=1487264/2055920 swapFree=4171336/4192956
[pid=22427] ppid=22425 vsize=1484 CPUtime=0.3
/proc/22427/stat : 22427 (march_ks) R 22425 22427 22154 0 -1 4194304 300 0 0 0 30 0 0 0 20 0 1 0 1134160093 1519616 283 1992294400 134512640 135019032 4294956240 18446744073709551615 134526454 0 0 4096 0 0 0 0 17 0 0 0
/proc/22427/statm: 371 283 73 123 0 246 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1484

[startup+0.701643 s]
/proc/loadavg: 1.07 1.02 0.94 3/69 22427
/proc/meminfo: memFree=1487264/2055920 swapFree=4171336/4192956
[pid=22427] ppid=22425 vsize=1484 CPUtime=0.7
/proc/22427/stat : 22427 (march_ks) R 22425 22427 22154 0 -1 4194304 316 0 0 0 70 0 0 0 24 0 1 0 1134160093 1519616 299 1992294400 134512640 135019032 4294956240 18446744073709551615 134526441 0 0 4096 0 0 0 0 17 0 0 0
/proc/22427/statm: 371 299 73 123 0 246 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1484

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

[startup+1.10668 s]
/proc/loadavg: 1.07 1.02 0.94 2/70 22428
/proc/meminfo: memFree=1486360/2055920 swapFree=4171336/4192956
[pid=22427] ppid=22425 vsize=1628 CPUtime=1.1
/proc/22427/stat : 22427 (march_ks) R 22425 22427 22154 0 -1 4194304 326 0 0 0 110 0 0 0 25 0 1 0 1134160093 1667072 309 1992294400 134512640 135019032 4294956240 18446744073709551615 134526436 0 0 4096 0 0 0 0 17 0 0 0
/proc/22427/statm: 407 309 73 123 0 282 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 1628

[startup+1.3017 s]
/proc/loadavg: 1.07 1.02 0.94 2/70 22428
/proc/meminfo: memFree=1486360/2055920 swapFree=4171336/4192956
[pid=22427] ppid=22425 vsize=1628 CPUtime=1.3
/proc/22427/stat : 22427 (march_ks) R 22425 22427 22154 0 -1 4194304 328 0 0 0 130 0 0 0 25 0 1 0 1134160093 1667072 311 1992294400 134512640 135019032 4294956240 18446744073709551615 134526505 0 0 4096 0 0 0 0 17 0 0 0
/proc/22427/statm: 407 311 73 123 0 282 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 1628

Child status: 10
Real time (s): 1.34899
CPU time (s): 1.3478
CPU user time (s): 1.3478
CPU system time (s): 0
CPU usage (%): 99.9118
Max. virtual memory (cumulated for all children) (KiB): 1628

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3478
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 331
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= 4

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-01 21:42:49
IDJOB=1544904
IDBENCH=70679
IDSOLVER=559
FILE ID=node44/1544904-1238614969
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-S786890012-057.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544904-1238614969/watcher-1544904-1238614969 -o /tmp/evaluation-result-1544904-1238614969/solver-1544904-1238614969 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544904-1238614969.cnf            

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

MD5SUM BENCH= a1a4d8d82b0d4daf47cfa00c0df86ca5
RANDOM SEED=133290693

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:       1487808 kB
Buffers:         96080 kB
Cached:         364908 kB
SwapCached:      11068 kB
Active:         227632 kB
Inactive:       245924 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1487808 kB
SwapTotal:     4192956 kB
SwapFree:      4171336 kB
Dirty:            3192 kB
Writeback:           0 kB
Mapped:          18220 kB
Slab:            80020 kB
Committed_AS:  2832888 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 21:42:51