Trace number 1736413

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 0.118981 0.119346

General information on the benchmark

NameCRAFTED/parity-games/
instance_n3_i3_pp_ci_ce.cnf
MD5SUMd8895a2e31237b2e0474d8f36f520fdb
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables525
Number of clauses2336
Sum of the clauses size7044
Maximum clause length6
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2816
Number of clauses of size 3852
Number of clauses of size 4486
Number of clauses of size 5180
Number of clauses of size over 52

Solver Data 

0.00/0.04	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.04	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.04	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.04	c main()::
0.00/0.04	c initFormula():: searching for DIMACS p-line....
0.00/0.04	c initFormula():: the DIMACS p-line indicates a CNF of 525 variables and 2336 clauses.
0.00/0.04	c parseCNF():: parsing....
0.00/0.04	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.04	c runParser():: parsing was successful, warming up engines...
0.00/0.04	c find_and_remove_tautogolies():: found and removed 101 tautologies
0.00/0.04	c simplify_formula():: removed 48 tautological, 327 satisfied and 125 duplicate clauses
0.00/0.04	c preprocessing fase I completed:: there are now 386 free variables and 1836 clauses.
0.00/0.04	c stat :: sign balance is biased by 1.302
0.00/0.04	c find_equivalence():: found 18 3-equivalences
0.00/0.04	c find_and_remove_tautogolies():: found and removed 6 tautologies
0.00/0.04	c find_and_remove_tautogolies():: found and removed 3 tautologies
0.00/0.04	c shorten_equivalence(): average equivalence length reduced from 3.333333 to 3.000000
0.00/0.04	c using k-SAT heuristics (size based diff)
0.00/0.04	c simplify_formula():: removed 0 tautological, 72 satisfied and 0 duplicate clauses
0.00/0.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 3726 duplicate clauses
0.00/0.04	c resolvent_look() :: found 4771 resolvents
0.00/0.04	c main():: clause / variable ratio: ( 6607 / 525 ) = 12.58
0.00/0.04	c longest clause has size 6
0.00/0.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.04	c number of free variables = 377
0.00/0.04	c dynamic_preselect_setsize :: off
0.00/0.04	c main():: all systems go!
0.00/0.04	c |----------------------------------------------------------------|
0.09/0.11	c |0000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
0.09/0.11	
c |
0.09/0.11	c
0.09/0.11	c main():: nodeCount: 5
0.09/0.11	c main():: dead ends in main: 0
0.09/0.11	c main():: lookAheadCount: 493
0.09/0.11	c main():: unitResolveCount: 515
0.09/0.11	c main():: time=0.110000
0.09/0.11	c main():: necessary_assignments: 16
0.09/0.11	c main():: bin_sat: 0, bin_unsat 0
0.09/0.11	c main():: doublelook: #: 8, succes #: 1
0.09/0.11	c main():: doublelook: overall 1.660 of all possible doublelooks executed
0.09/0.11	c main():: doublelook: succesrate: 12.500, average DL_trigger: 2464.933
0.09/0.11	c main():: SOLUTION VERIFIED :-)
0.09/0.11	s SATISFIABLE
0.09/0.11	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 29 -31 -32 -33 -34 35 -36 -38 -39 -40 -41 42 43 44 -45 -46 47 -48 49 -50 -51 -52 53 -54 -57 -58 -59 60 61 -62 63 -64 65 -66 67 -68 69 70 71 72 73 -74 -75 76 -77 -79 -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 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-1736413-1240811664/watcher-1736413-1240811664 -o /tmp/evaluation-result-1736413-1240811664/solver-1736413-1240811664 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1736413-1240811664.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 0.98 2/64 27633
/proc/meminfo: memFree=1578784/2055920 swapFree=4191900/4192956
[pid=27633] ppid=27631 vsize=968 CPUtime=0
/proc/27633/stat : 27633 (march_nn) R 27631 27633 27226 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 109194441 991232 121 1992294400 134512640 135197250 4294956224 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/27633/statm: 242 121 62 167 0 73 0

[startup+0.0530709 s]
/proc/loadavg: 1.00 1.00 0.98 2/64 27633
/proc/meminfo: memFree=1578784/2055920 swapFree=4191900/4192956
[pid=27633] ppid=27631 vsize=2532 CPUtime=0.05
/proc/27633/stat : 27633 (march_nn) R 27631 27633 27226 0 -1 4194304 404 0 0 0 5 0 0 0 18 0 1 0 109194441 2592768 387 1992294400 134512640 135197250 4294956224 18446744073709551615 134525550 0 0 4096 0 0 0 0 17 1 0 0
/proc/27633/statm: 633 387 91 167 0 464 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2532

[startup+0.101075 s]
/proc/loadavg: 1.00 1.00 0.98 2/64 27633
/proc/meminfo: memFree=1578784/2055920 swapFree=4191900/4192956
[pid=27633] ppid=27631 vsize=2532 CPUtime=0.09
/proc/27633/stat : 27633 (march_nn) R 27631 27633 27226 0 -1 4194304 404 0 0 0 9 0 0 0 18 0 1 0 109194441 2592768 387 1992294400 134512640 135197250 4294956224 18446744073709551615 134548733 0 0 4096 0 0 0 0 17 1 0 0
/proc/27633/statm: 633 387 91 167 0 464 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2532

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

Child status: 10
Real time (s): 0.119346
CPU time (s): 0.118981
CPU user time (s): 0.117982
CPU system time (s): 0.000999
CPU usage (%): 99.6943
Max. virtual memory (cumulated for all children) (KiB): 2532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.117982
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= 431
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 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node43 at 2009-04-27 07:54:24
IDJOB=1736413
IDBENCH=71625
IDSOLVER=522
FILE ID=node43/1736413-1240811664
PBS_JOBID= 9187430
Free space on /tmp= 66432 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n3_i3_pp_ci_ce.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736413-1240811664/watcher-1736413-1240811664 -o /tmp/evaluation-result-1736413-1240811664/solver-1736413-1240811664 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1736413-1240811664.cnf

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

MD5SUM BENCH= d8895a2e31237b2e0474d8f36f520fdb
RANDOM SEED=1301442092

node43.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		: 3000.237
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		: 3000.237
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:       1579264 kB
Buffers:         58912 kB
Cached:         343844 kB
SwapCached:        416 kB
Active:         105300 kB
Inactive:       310800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1579264 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:             804 kB
Writeback:           0 kB
Mapped:          21772 kB
Slab:            46528 kB
Committed_AS:   470324 kB
PageTables:       1444 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= 66432 MiB
End job on node43 at 2009-04-27 07:54:24