Trace number 1544976

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 7.31389 7.31649

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S957997002-040.cnf
MD5SUM92eaf07e43795c59dd53e3c833d9e0f0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
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 480 variables and 2040 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, 5 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 479 free variables and 2035 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.531
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 158 duplicate clauses
0.00/0.01	c resolvent_look() :: found 106 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 480 variables and 2141 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 480 variabels and 2141 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 2141 / 480 ) = 4.46
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: 155 JD: 17
0.10/0.11	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
7.29/7.31	c solution bin :: 00000000001000000.001000000110001
7.29/7.31	c direction branchin :: current_rights = 5
7.29/7.31	
c |***************************************************************
7.29/7.31	c
7.29/7.31	c main():: nodeCount: 11688
7.29/7.31	c main():: dead ends in main: 289
7.29/7.31	c main():: lookAheadCount: 1026970
7.29/7.31	c main():: unitResolveCount: 170477
7.29/7.31	c main():: time=7.310000
7.29/7.31	c main():: necessary_assignments: 3653
7.29/7.31	c main():: bin_sat: 0, bin_unsat 0
7.29/7.31	c main():: doublelook: #: 56876, succes #: 43416
7.29/7.31	c main():: doublelook: overall 5.734 of all possible doublelooks executed
7.29/7.31	c main():: doublelook: succesrate: 76.334, average DL_trigger: 7370.540
7.29/7.31	c main():: SOLUTION VERIFIED :-)
7.29/7.31	s SATISFIABLE
7.29/7.31	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 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-1544976-1238615031/watcher-1544976-1238615031 -o /tmp/evaluation-result-1544976-1238615031/solver-1544976-1238615031 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544976-1238615031.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: 0.99 0.97 0.91 3/64 21484
/proc/meminfo: memFree=1437296/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=792 CPUtime=0
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 1134169814 811008 112 1992294400 134512640 135019032 4294956240 18446744073709551615 134561682 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 198 112 50 123 0 73 0

[startup+0.0609881 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 21484
/proc/meminfo: memFree=1437296/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1236 CPUtime=0.05
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 256 0 0 0 5 0 0 0 18 0 1 0 1134169814 1265664 239 1992294400 134512640 135019032 4294956240 18446744073709551615 134538157 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 309 239 73 123 0 184 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1236

[startup+0.101996 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 21484
/proc/meminfo: memFree=1437296/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1392 CPUtime=0.1
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 267 0 0 0 10 0 0 0 18 0 1 0 1134169814 1425408 250 1992294400 134512640 135019032 4294956240 18446744073709551615 134526505 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 348 250 73 123 0 223 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1392

[startup+0.302034 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 21484
/proc/meminfo: memFree=1437296/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1392 CPUtime=0.3
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 280 0 0 0 30 0 0 0 19 0 1 0 1134169814 1425408 263 1992294400 134512640 135019032 4294956240 18446744073709551615 134542770 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 348 263 73 123 0 223 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1392

[startup+0.70111 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 21484
/proc/meminfo: memFree=1437296/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1392 CPUtime=0.69
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 287 0 0 0 69 0 0 0 23 0 1 0 1134169814 1425408 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134548779 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 348 270 73 123 0 223 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1392

[startup+1.50126 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 21485
/proc/meminfo: memFree=1436392/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1392 CPUtime=1.49
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 300 0 0 0 149 0 0 0 25 0 1 0 1134169814 1425408 283 1992294400 134512640 135019032 4294956240 18446744073709551615 134526435 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 348 283 73 123 0 223 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1392

[startup+3.10157 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 21485
/proc/meminfo: memFree=1436264/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1524 CPUtime=3.09
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 308 0 0 0 309 0 0 0 25 0 1 0 1134169814 1560576 291 1992294400 134512640 135019032 4294956240 18446744073709551615 134584966 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 381 291 73 123 0 256 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1524

[startup+6.30118 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 21486
/proc/meminfo: memFree=1436008/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1524 CPUtime=6.29
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 319 0 0 0 629 0 0 0 25 0 1 0 1134169814 1560576 302 1992294400 134512640 135019032 4294956240 18446744073709551615 134526436 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 381 302 73 123 0 256 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1524

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

[startup+7.10133 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 21486
/proc/meminfo: memFree=1436008/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1524 CPUtime=7.09
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 320 0 0 0 709 0 0 0 25 0 1 0 1134169814 1560576 303 1992294400 134512640 135019032 4294956240 18446744073709551615 134579424 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 381 303 73 123 0 256 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 1524

[startup+7.30137 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 21486
/proc/meminfo: memFree=1436008/2055920 swapFree=4179880/4192956
[pid=21484] ppid=21482 vsize=1524 CPUtime=7.29
/proc/21484/stat : 21484 (march_ks) R 21482 21484 21299 0 -1 4194304 321 0 0 0 729 0 0 0 25 0 1 0 1134169814 1560576 304 1992294400 134512640 135019032 4294956240 18446744073709551615 134526432 0 0 4096 0 0 0 0 17 0 0 0
/proc/21484/statm: 381 304 73 123 0 256 0
Current children cumulated CPU time (s) 7.29
Current children cumulated vsize (KiB) 1524

Child status: 10
Real time (s): 7.31649
CPU time (s): 7.31389
CPU user time (s): 7.31289
CPU system time (s): 0.000999
CPU usage (%): 99.9644
Max. virtual memory (cumulated for all children) (KiB): 1524

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.31289
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= 322
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= 26

runsolver used 0.006998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node5 at 2009-04-01 21:43:51
IDJOB=1544976
IDBENCH=70715
IDSOLVER=559
FILE ID=node5/1544976-1238615031
PBS_JOBID= 9073696
Free space on /tmp= 66096 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S957997002-040.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544976-1238615031/watcher-1544976-1238615031 -o /tmp/evaluation-result-1544976-1238615031/solver-1544976-1238615031 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544976-1238615031.cnf            

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

MD5SUM BENCH= 92eaf07e43795c59dd53e3c833d9e0f0
RANDOM SEED=1779460964

node5.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		: 3000.263
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		: 3000.263
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:       1437776 kB
Buffers:         89296 kB
Cached:         426352 kB
SwapCached:       7000 kB
Active:         219020 kB
Inactive:       305132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1437776 kB
SwapTotal:     4192956 kB
SwapFree:      4179880 kB
Dirty:            3128 kB
Writeback:           0 kB
Mapped:          14220 kB
Slab:            80060 kB
Committed_AS:  2972664 kB
PageTables:       1388 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= 66092 MiB
End job on node5 at 2009-04-01 21:43:59