Trace number 1518458

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
march_nn nnSAT 0.195969 0.196751

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S809967194-078.cnf
MD5SUMed095e38b0a3e5af1f48e3823e5c45cb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
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) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
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, 11 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 559 free variables and 2369 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.488
0.00/0.02	c using 3-SAT heuristics (occurence based diff)
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 176 duplicate clauses
0.00/0.02	c resolvent_look() :: found 84 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 560 variables and 2453 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 2453 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2453 / 560 ) = 4.38
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 number of free variables = 559
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 49
0.00/0.04	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
0.09/0.19	c |000000000000000000100000000000000000000000000000000000000000000|
0.09/0.19	
c |***************************************************************
0.09/0.19	c
0.09/0.19	c main():: nodeCount: 628
0.09/0.19	c main():: dead ends in main: 2
0.09/0.19	c main():: lookAheadCount: 46895
0.09/0.19	c main():: unitResolveCount: 2751
0.09/0.19	c main():: time=0.190000
0.09/0.19	c main():: necessary_assignments: 48
0.09/0.19	c main():: bin_sat: 0, bin_unsat 0
0.09/0.19	c main():: doublelook: #: 913, succes #: 192
0.09/0.19	c main():: doublelook: overall 1.953 of all possible doublelooks executed
0.09/0.19	c main():: doublelook: succesrate: 21.030, average DL_trigger: 42.540
0.09/0.19	c main():: SOLUTION VERIFIED :-)
0.09/0.19	s SATISFIABLE
0.09/0.19	v 1 -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 -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 -86 87 88 90 91 -92 93 -94 -95 -96 97 98 -99 100 -101 -102 -103 104 -105 -106 107 109 110 -111 112 -113 -114 115 116 -117 -118 119 120 -121 -122 -123 124 125 126 -127 128 129 130 -131 -132 -133 -134 -136 137 138 139 -140 -141 142 -143 144 -145 146 -147 -148 -149 150 -151 152 153 154 -155 157 158 159 -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 -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 -265 266 267 268 269 270 272 273 -274 -275 276 277 -278 -279 -280 -281 282 283 284 -285 286 -287 -288 -289 290 -291 -292 293 294 -295 -296 -297 -299 -300 301 302 303 304 305 307 -308 -310 311 312 -313 -314 -315 316 -317 -318 -320 321 322 324 325 327 -328 -329 -330 -331 -332 333 -334 335 -336 -337 338 -339 340 341 343 -345 346 347 -348 349 350 -351 -352 353 -354 -355 -356 -357 -358 -359 360 361 -362 363 -365 366 368 369 370 371 372 -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 -403 404 405 -406 407 -408 409 -410 411 412 413 414 -415 -416 -417 418 419 420 421 -422 423 424 426 -427 -428 -429 430 431 433 434 -435 436 437 438 -439 -440 -442 -443 -444 -445 446 -447 448 449 -450 451 452 -453 454 456 457 458 459 460 461 -462 -463 464 -465 466 -467 -468 469 470 -471 -472 -473 -474 -475 -476 -478 479 480 481 482 484 485 -486 487 488 489 490 491 492 -493 494 495 496 -497 498 499 -500 -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 -532 534 535 -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:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1518458-1238299902/watcher-1518458-1238299902 -o /tmp/evaluation-result-1518458-1238299902/solver-1518458-1238299902 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518458-1238299902.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 0.99 2/64 30001
/proc/meminfo: memFree=892056/2055920 swapFree=4176708/4192956
[pid=30001] ppid=29999 vsize=968 CPUtime=0
/proc/30001/stat : 30001 (march_nn) R 29999 30001 29903 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 1102652216 991232 123 1992294400 134512640 135197250 4294956240 18446744073709551615 134566768 0 0 4096 0 0 0 0 17 1 0 0
/proc/30001/statm: 242 123 63 167 0 73 0

[startup+0.0829 s]
/proc/loadavg: 0.99 0.97 0.99 2/64 30001
/proc/meminfo: memFree=892056/2055920 swapFree=4176708/4192956
[pid=30001] ppid=29999 vsize=1944 CPUtime=0.07
/proc/30001/stat : 30001 (march_nn) R 29999 30001 29903 0 -1 4194304 325 0 0 0 7 0 0 0 18 0 1 0 1102652216 1990656 308 1992294400 134512640 135197250 4294956240 18446744073709551615 134542112 0 0 4096 0 0 0 0 17 1 0 0
/proc/30001/statm: 486 308 93 167 0 317 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1944

[startup+0.101902 s]
/proc/loadavg: 0.99 0.97 0.99 2/64 30001
/proc/meminfo: memFree=892056/2055920 swapFree=4176708/4192956
[pid=30001] ppid=29999 vsize=1944 CPUtime=0.09
/proc/30001/stat : 30001 (march_nn) R 29999 30001 29903 0 -1 4194304 328 0 0 0 9 0 0 0 18 0 1 0 1102652216 1990656 311 1992294400 134512640 135197250 4294956240 18446744073709551615 134542165 0 0 4096 0 0 0 0 17 1 0 0
/proc/30001/statm: 486 311 93 167 0 317 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1944

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

Child status: 10
Real time (s): 0.196751
CPU time (s): 0.195969
CPU user time (s): 0.19297
CPU system time (s): 0.002999
CPU usage (%): 99.6025
Max. virtual memory (cumulated for all children) (KiB): 1944

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19297
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= 380
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= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node51 at 2009-03-29 06:11:42
IDJOB=1518458
IDBENCH=70681
IDSOLVER=522
FILE ID=node51/1518458-1238299902
PBS_JOBID= 9061045
Free space on /tmp= 65232 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S809967194-078.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518458-1238299902/watcher-1518458-1238299902 -o /tmp/evaluation-result-1518458-1238299902/solver-1518458-1238299902 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518458-1238299902.cnf

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

MD5SUM BENCH= ed095e38b0a3e5af1f48e3823e5c45cb
RANDOM SEED=1242924962

node51.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:        892536 kB
Buffers:         74628 kB
Cached:         999228 kB
SwapCached:       9996 kB
Active:         158744 kB
Inactive:       926472 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        892536 kB
SwapTotal:     4192956 kB
SwapFree:      4176708 kB
Dirty:             812 kB
Writeback:           0 kB
Mapped:          17076 kB
Slab:            64168 kB
Committed_AS:  2917860 kB
PageTables:       1400 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= 65232 MiB
End job on node51 at 2009-03-29 06:11:42