Trace number 1630643

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
SATzilla2009_R 2009-03-22SAT 0.025995 0.025924

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S621134782-041.cnf
MD5SUM09a6dc57cba44ea6f55eca37108c958d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
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 SATzilla is building models for class 1
0.00/0.02	c run presolver SATenstein for 30 seconds ... 
0.00/0.02	c Bin: Executing SATenstein
0.00/0.02	c spawning binary file with 30 seconds ...
0.00/0.02	c child exited successfully
0.00/0.02	c SATenstein returned code 10.
0.00/0.02	s SATISFIABLE
0.00/0.02	v  1 2 3 -4 -5 -6 7 8 9 -10
0.00/0.02	v  11 -12 13 -14 -15 16 -17 -18 19 -20
0.00/0.02	v  21 22 -23 24 25 -26 27 28 -29 -30
0.00/0.02	v  31 32 33 34 35 -36 37 -38 39 -40
0.00/0.02	v  41 -42 -43 44 45 46 -47 48 -49 50
0.00/0.02	v  -51 -52 53 54 -55 -56 57 -58 -59 60
0.00/0.02	v  61 -62 63 64 65 -66 -67 68 69 -70
0.00/0.02	v  -71 -72 -73 -74 75 -76 -77 78 79 -80
0.00/0.02	v  81 -82 83 -84 85 86 87 -88 -89 90
0.00/0.02	v  -91 92 93 -94 95 -96 -97 -98 -99 -100
0.00/0.02	v  -101 102 -103 104 -105 -106 107 -108 109 -110
0.00/0.02	v  111 -112 113 114 -115 116 117 -118 119 -120
0.00/0.02	v  -121 -122 123 124 -125 126 127 128 -129 130
0.00/0.02	v  -131 -132 -133 134 -135 136 -137 -138 -139 140
0.00/0.02	v  141 142 143 -144 -145 146 147 -148 -149 150
0.00/0.02	v  -151 -152 -153 -154 -155 156 157 158 -159 -160
0.00/0.02	v  -161 -162 -163 -164 165 166 167 168 -169 170
0.00/0.02	v  171 -172 173 -174 -175 176 177 178 179 -180
0.00/0.02	v  -181 -182 183 184 -185 -186 187 188 189 190
0.00/0.02	v  191 -192 -193 194 -195 -196 197 -198 -199 200
0.00/0.02	v  -201 202 203 204 -205 206 -207 -208 209 -210
0.00/0.02	v  -211 212 213 214 215 216 -217 -218 219 220
0.00/0.02	v  -221 -222 223 -224 -225 -226 -227 228 229 -230
0.00/0.02	v  -231 -232 -233 234 235 236 237 -238 239 240
0.00/0.02	v  -241 242 243 -244 245 246 -247 -248 249 250
0.00/0.02	v  251 252 -253 -254 255 256 -257 -258 -259 260
0.00/0.02	v  261 262 -263 -264 265 -266 -267 268 269 -270
0.00/0.02	v  271 -272 273 274 -275 276 -277 278 279 280
0.00/0.02	v  281 -282 -283 284 -285 -286 -287 -288 -289 290
0.00/0.02	v  -291 -292 293 -294 295 296 297 298 -299 -300
0.00/0.02	v  301 -302 -303 -304 -305 -306 -307 -308 309 -310
0.00/0.02	v  -311 -312 -313 314 -315 -316 -317 318 -319 -320
0.00/0.02	v  321 322 323 324 -325 326 -327 328 329 -330
0.00/0.02	v  331 332 333 334 -335 -336 -337 338 339 -340
0.00/0.02	v  341 342 343 344 -345 346 347 348 349 -350
0.00/0.02	v  -351 -352 353 354 355 -356 -357 -358 -359 360
0.00/0.02	v  361 362 363 364 365 -366 -367 -368 -369 -370
0.00/0.02	v  371 372 373 -374 375 376 377 -378 -379 -380
0.00/0.02	v  -381 -382 383 -384 -385 386 -387 388 389 -390
0.00/0.02	v  -391 392 393 394 395 396 397 398 399 -400
0.00/0.02	v  401 402 -403 -404 405 -406 -407 -408 -409 -410
0.00/0.02	v  -411 412 413 -414 415 -416 -417 -418 -419 -420
0.00/0.02	v  421 -422 423 424 425 -426 427 428 429 430
0.00/0.02	v  -431 432 433 434 435 -436 -437 -438 439 440
0.00/0.02	v  -441 -442 443 444 -445 -446 447 448 449 450
0.00/0.02	v  -451 -452 453 -454 -455 -456 457 458 459 -460
0.00/0.02	v  -461 -462 463 464 -465 466 -467 -468 -469 470
0.00/0.02	v  -471 472 -473 474 475 -476 477 -478 479 480
0.00/0.02	v  -481 482 483 -484 -485 -486 -487 -488 489 490
0.00/0.02	v  -491 -492 493 -494 495 496 -497 -498 -499 500
0.00/0.02	v  501 502 -503 504 505 506 507 -508 509 -510
0.00/0.02	v  511 512 513 514 515 516 517 518 -519 -520
0.00/0.02	v  0
0.00/0.02	c SATZILLA_TIME=0.020000

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-1630643-1240141064/watcher-1630643-1240141064 -o /tmp/evaluation-result-1630643-1240141064/solver-1630643-1240141064 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1630643-1240141064.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 1.02 1.00 1.00 2/64 26984
/proc/meminfo: memFree=1292624/2055920 swapFree=4192956/4192956
[pid=26984] ppid=26982 vsize=2056 CPUtime=0
/proc/26984/stat : 26984 (SATzilla2009_R) S 26982 26984 26455 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 42133511 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26984/statm: 514 112 96 399 0 111 0
[pid=26985] ppid=26984 vsize=6508 CPUtime=0
/proc/26985/stat : 26985 (SATenstein) R 26984 26984 26455 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 42133511 6664192 261 1992294400 134512640 134854740 4294955360 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26985/statm: 1627 261 151 83 0 1188 0

[startup+0.00766991 s]
/proc/loadavg: 1.02 1.00 1.00 2/64 26984
/proc/meminfo: memFree=1292624/2055920 swapFree=4192956/4192956
[pid=26984] ppid=26982 vsize=2056 CPUtime=0
/proc/26984/stat : 26984 (SATzilla2009_R) S 26982 26984 26455 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 42133511 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26984/statm: 514 112 96 399 0 111 0
[pid=26985] ppid=26984 vsize=6504 CPUtime=0
/proc/26985/stat : 26985 (SATenstein) R 26984 26984 26455 0 -1 4194304 299 0 0 0 0 0 0 0 18 0 1 0 42133511 6660096 279 1992294400 134512640 134854740 4294955360 18446744073709551615 10850007 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26985/statm: 1626 279 153 83 0 1187 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8560

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

[startup+0.00766991 s]
/proc/loadavg: 1.02 1.00 1.00 2/64 26984
/proc/meminfo: memFree=1292624/2055920 swapFree=4192956/4192956
[pid=26984] ppid=26982 vsize=2056 CPUtime=0
/proc/26984/stat : 26984 (SATzilla2009_R) S 26982 26984 26455 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 42133511 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26984/statm: 514 112 96 399 0 111 0
[pid=26985] ppid=26984 vsize=6504 CPUtime=0
/proc/26985/stat : 26985 (SATenstein) R 26984 26984 26455 0 -1 4194304 299 0 0 0 0 0 0 0 18 0 1 0 42133511 6660096 279 1992294400 134512640 134854740 4294955360 18446744073709551615 10850007 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26985/statm: 1626 279 153 83 0 1187 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8560

Child status: 10
Real time (s): 0.025924
CPU time (s): 0.025995
CPU user time (s): 0.019996
CPU system time (s): 0.005999
CPU usage (%): 100.274
Max. virtual memory (cumulated for all children) (KiB): 8560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.019996
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 547
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= 5
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data

Begin job on node61 at 2009-04-19 13:37:44
IDJOB=1630643
IDBENCH=70659
IDSOLVER=587
FILE ID=node61/1630643-1240141064
PBS_JOBID= 9157898
Free space on /tmp= 66456 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S621134782-041.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1630643-1240141064/watcher-1630643-1240141064 -o /tmp/evaluation-result-1630643-1240141064/solver-1630643-1240141064 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1630643-1240141064.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 09a6dc57cba44ea6f55eca37108c958d
RANDOM SEED=1046309430

node61.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		: 3000.216
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		: 3000.216
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:       1293168 kB
Buffers:         82908 kB
Cached:         601512 kB
SwapCached:          0 kB
Active:         311708 kB
Inactive:       385416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1293168 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           31492 kB
Writeback:           0 kB
Mapped:          22468 kB
Slab:            51804 kB
Committed_AS:   193392 kB
PageTables:       1368 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66424 MiB
End job on node61 at 2009-04-19 13:37:44