Trace number 1737048

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
precosat 236SAT 0.023996 0.024579

General information on the benchmark

NameCRAFTED/parity-games/
instance_n3_i3_pp.cnf
MD5SUM2a7169a83594b75cda64cac41124a58d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003998
Satisfiable
(Un)Satisfiability was proved
Number of variables525
Number of clauses2276
Sum of the clauses size6924
Maximum clause length6
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2756
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 

0.00/0.00	c PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1737048-1240814354.cnf
0.00/0.00	c found header 'p cnf 525 2276'
0.00/0.00	c finished parsing
0.00/0.00	c
0.00/0.00	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.00	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.00	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.00	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.00	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.00	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.00	c
0.00/0.00	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.00	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.00	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.00	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.00	c
0.00/0.00	c starting search after 0.0 seconds
0.00/0.00	c no decision limit
0.00/0.00	c
0.00/0.00	c       original/binary      fixed     eliminated      learned       agility
0.00/0.00	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.00	c
0.00/0.00	c *    0.0     2264     402      9   114      0       0      0    0.0   0    0
0.00/0.01	c -    0.0     1698     220     92   213      0       0   1000    0.0   0    0
0.00/0.02	c s    0.0      620      86     92   213    134       0      0    0.0   0    0
0.00/0.02	c l    0.0      620      86     92   213    134       0   1000    0.0   0    0
0.00/0.02	c 1    0.0      638      86     92   213    134      13     11    3.9   2    0
0.00/0.02	c
0.00/0.02	s SATISFIABLE
0.00/0.02	v -1 -2 3 -4 5 6 7
0.00/0.02	v 8 -9 -10 11 12 -13 14 15
0.00/0.02	v 16 17 -18 -19 20 21 -22 -23
0.00/0.02	v 24 25 -26 -27 -28 -29 -30 -31
0.00/0.02	v -32 -33 34 35 -36 37 -38 -39
0.00/0.02	v -40 -41 42 -43 -44 -45 -46 47
0.00/0.02	v -48 49 50 -51 -52 53 -54 -55
0.00/0.02	v 56 57 -58 -59 -60 -61 -62 -63
0.00/0.02	v -64 65 -66 67 68 -69 -70 71
0.00/0.02	v 72 73 74 -75 76 -77 -78 -79
0.00/0.02	v 80 81 82 -83 -84 -85 -86 -87
0.00/0.02	v 88 -89 90 -91 92 93 94 -95
0.00/0.02	v 96 97 98 99 -100 -101 102 -103
0.00/0.02	v -104 -105 -106 107 108 -109 -110 111
0.00/0.02	v -112 -113 114 -115 116 -117 -118 119
0.00/0.02	v -120 -121 122 -123 124 125 126 127
0.00/0.02	v -128 -129 130 -131 -132 133 134 -135
0.00/0.02	v 136 -137 138 -139 -140 141 -142 -143
0.00/0.02	v 144 145 146 147 148 149 -150 -151
0.00/0.02	v -152 153 -154 -155 -156 -157 -158 159
0.00/0.02	v 160 161 -162 -163 -164 -165 -166 -167
0.00/0.02	v 168 -169 -170 171 172 -173 174 -175
0.00/0.02	v -176 177 -178 -179 180 181 182 -183
0.00/0.02	v 184 185 -186 187 188 -189 190 191
0.00/0.02	v -192 -193 194 195 -196 -197 198 199
0.00/0.02	v -200 -201 -202 203 204 -205 206 207
0.00/0.02	v -208 -209 -210 -211 -212 -213 214 -215
0.00/0.02	v -216 217 218 -219 220 -221 222 223
0.00/0.02	v 224 225 -226 227 -228 -229 230 -231
0.00/0.02	v 232 233 -234 235 -236 237 238 -239
0.00/0.02	v -240 -241 242 243 244 245 246 -247
0.00/0.02	v 248 -249 -250 251 252 -253 -254 255
0.00/0.02	v 256 257 258 259 260 261 -262 -263
0.00/0.02	v -264 265 -266 -267 268 -269 270 -271
0.00/0.02	v -272 273 274 275 -276 -277 278 -279
0.00/0.02	v 280 281 282 283 284 285 286 287
0.00/0.02	v -288 289 290 -291 292 -293 -294 295
0.00/0.02	v 296 297 -298 -299 -300 301 302 303
0.00/0.02	v 304 -305 306 307 308 309 -310 311
0.00/0.02	v 312 313 314 315 316 317 318 319
0.00/0.02	v -320 -321 322 -323 -324 325 326 327
0.00/0.02	v -328 -329 330 -331 -332 -333 -334 335
0.00/0.02	v -336 337 338 339 340 -341 -342 343
0.00/0.02	v -344 -345 -346 -347 348 -349 -350 351
0.00/0.02	v 352 353 -354 355 -356 357 -358 -359
0.00/0.02	v 360 -361 362 363 364 -365 366 -367
0.00/0.02	v -368 369 -370 371 -372 -373 -374 375
0.00/0.02	v -376 -377 378 -379 -380 -381 382 -383
0.00/0.02	v -384 -385 386 387 388 389 -390 -391
0.00/0.02	v -392 393 -394 -395 -396 -397 -398 -399
0.00/0.02	v 400 401 402 -403 -404 -405 -406 -407
0.00/0.02	v 408 409 -410 -411 412 -413 -414 -415
0.00/0.02	v -416 417 -418 -419 -420 -421 -422 423
0.00/0.02	v 424 425 -426 427 -428 -429 430 431
0.00/0.02	v 432 433 434 435 -436 -437 -438 -439
0.00/0.02	v 440 441 -442 -443 -444 -445 -446 447
0.00/0.02	v 448 -449 450 451 -452 -453 -454 455
0.00/0.02	v -456 -457 458 -459 -460 -461 -462 -463
0.00/0.02	v -464 -465 -466 467 468 -469 -470 471
0.00/0.02	v -472 -473 474 475 -476 -477 478 479
0.00/0.02	v -480 -481 -482 -483 -484 -485 486 -487
0.00/0.02	v -488 -489 -490 -491 -492 -493 -494 -495
0.00/0.02	v -496 -497 -498 499 -500 501 502 503
0.00/0.02	v 504 -505 506 -507 508 -509 510 511
0.00/0.02	v 512 513 -514 -515 -516 517 -518 519
0.00/0.02	v 520 521 522 -523 524 -525
0.00/0.02	v 0
0.00/0.02	c
0.00/0.02	c 13 conflicts, 24 decisions, 1 random
0.00/0.02	c 0 iterations, 0 restarts, 0 skipped
0.00/0.02	c 0 enlarged, 131 shrunken, 0 rescored, 0 rebiased
0.00/0.02	c 1 simplifications, 0 reductions
0.00/0.02	c
0.00/0.02	c vars: 92 fixed, 213 equiv, 134 elim, 251 merged
0.00/0.02	c elim: 5664 resolutions, 1 phases, 1 rounds
0.00/0.02	c sbst: 49% substituted, 0.0% nots, 68.2% ands, 27.3% xors, 4.5% ites
0.00/0.02	c arty: 2.07 and 2.00 xor average arity
0.00/0.02	c prbe: 1495 probed, 1 phases, 3 rounds
0.00/0.02	c prbe: 12 failed, 31 lifted, 66 merged
0.00/0.02	c sccs: 2 non trivial, 0 fixed, 2 merged
0.00/0.02	c hash: 3 units, 183 merged
0.00/0.02	c mins: 56 learned, 21% deleted, 1 strong, 4 depth
0.00/0.02	c subs: 318 forward, 228 backward, 250 doms
0.00/0.02	c strs: 191 forward, 90 backward
0.00/0.02	c doms: 451 dominators, 3 high, 3 low
0.00/0.02	c prps: 36459 propagations, 1.52 megaprops
0.00/0.02	c
0.00/0.02	c 0.0 seconds, 0 MB max, 0 MB recycled

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-1737048-1240814354/watcher-1737048-1240814354 -o /tmp/evaluation-result-1737048-1240814354/solver-1737048-1240814354 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1737048-1240814354.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 0.98 0.99 3/64 30354
/proc/meminfo: memFree=1635872/2055920 swapFree=4192812/4192956
[pid=30354] ppid=30352 vsize=916 CPUtime=0
/proc/30354/stat : 30354 (precosat) R 30352 30354 29961 0 -1 4194304 163 0 0 0 0 0 0 0 18 0 1 0 109468590 937984 147 1992294400 134512640 135151029 4294956224 18446744073709551615 134554517 0 0 4096 17442 0 0 0 17 1 0 0
/proc/30354/statm: 229 147 79 155 0 72 0

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

Child status: 10
Real time (s): 0.024579
CPU time (s): 0.023996
CPU user time (s): 0.023996
CPU system time (s): 0
CPU usage (%): 97.6282
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.023996
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= 185
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 0.008998 second system time

The end

Launcher Data 

Begin job on node21 at 2009-04-27 08:39:14
IDJOB=1737048
IDBENCH=71641
IDSOLVER=507
FILE ID=node21/1737048-1240814354
PBS_JOBID= 9187429
Free space on /tmp= 66348 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n3_i3_pp.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1737048-1240814354/watcher-1737048-1240814354 -o /tmp/evaluation-result-1737048-1240814354/solver-1737048-1240814354 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1737048-1240814354.cnf

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

MD5SUM BENCH= 2a7169a83594b75cda64cac41124a58d
RANDOM SEED=881811517

node21.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		: 3000.233
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		: 3000.233
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:       1636288 kB
Buffers:         59120 kB
Cached:         271428 kB
SwapCached:          0 kB
Active:         141140 kB
Inactive:       203404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1636288 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             748 kB
Writeback:           0 kB
Mapped:          23688 kB
Slab:            61180 kB
Committed_AS:   473496 kB
PageTables:       1376 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= 66348 MiB
End job on node21 at 2009-04-27 08:39:14