Trace number 1539806

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 0.017996 0.0187349

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 SATzilla is building models for class 1
0.00/0.01	c run presolver SATenstein for 30 seconds ... 
0.00/0.01	c Bin: Executing SATenstein
0.00/0.01	c spawning binary file with 30 seconds ...
0.00/0.01	c child exited successfully
0.00/0.01	c SATenstein returned code 10.
0.00/0.01	s SATISFIABLE
0.00/0.01	v  1 -2 3 4 -5 6 7 -8 9 10
0.00/0.01	v  -11 -12 -13 -14 15 -16 17 -18 19 -20
0.00/0.01	v  21 -22 -23 -24 25 26 27 28 29 -30
0.00/0.01	v  -31 32 -33 -34 35 36 37 -38 -39 -40
0.00/0.01	v  -41 -42 -43 44 45 46 47 -48 -49 -50
0.00/0.01	v  51 -52 -53 -54 55 56 57 -58 59 -60
0.00/0.01	v  61 -62 -63 64 65 -66 67 -68 -69 70
0.00/0.01	v  71 72 73 74 -75 -76 77 78 -79 -80
0.00/0.01	v  81 82 -83 84 -85 -86 -87 -88 89 -90
0.00/0.01	v  91 92 93 -94 -95 -96 97 98 99 -100
0.00/0.01	v  -101 -102 -103 -104 -105 106 -107 -108 -109 110
0.00/0.01	v  -111 112 -113 114 -115 -116 117 -118 119 -120
0.00/0.01	v  121 -122 -123 124 125 126 127 128 129 -130
0.00/0.01	v  131 132 -133 -134 -135 136 137 -138 -139 140
0.00/0.01	v  -141 142 -143 -144 -145 146 -147 148 -149 150
0.00/0.01	v  151 152 -153 154 -155 -156 -157 158 -159 160
0.00/0.01	v  -161 162 163 -164 -165 166 167 -168 169 -170
0.00/0.01	v  -171 172 -173 -174 175 176 -177 -178 -179 180
0.00/0.01	v  -181 -182 -183 184 185 -186 187 -188 -189 -190
0.00/0.01	v  191 192 193 194 195 -196 197 -198 -199 200
0.00/0.01	v  -201 -202 -203 -204 -205 206 207 208 -209 -210
0.00/0.01	v  -211 -212 213 214 215 216 -217 -218 219 220
0.00/0.01	v  221 222 -223 224 225 226 227 -228 229 230
0.00/0.01	v  231 -232 -233 234 -235 -236 237 238 -239 -240
0.00/0.01	v  241 242 243 -244 -245 -246 -247 -248 -249 -250
0.00/0.01	v  251 -252 -253 -254 255 -256 257 -258 -259 260
0.00/0.01	v  -261 -262 -263 -264 265 -266 -267 -268 -269 270
0.00/0.01	v  -271 272 -273 -274 -275 276 -277 278 -279 -280
0.00/0.01	v  281 -282 -283 284 285 -286 -287 -288 289 -290
0.00/0.01	v  -291 292 -293 294 -295 -296 297 -298 -299 -300
0.00/0.01	v  -301 302 303 -304 -305 -306 -307 308 309 310
0.00/0.01	v  311 -312 -313 314 -315 -316 -317 318 319 -320
0.00/0.01	v  -321 -322 -323 -324 -325 326 -327 328 329 330
0.00/0.01	v  -331 332 -333 -334 335 -336 -337 -338 -339 -340
0.00/0.01	v  341 342 -343 344 -345 346 -347 348 349 -350
0.00/0.01	v  351 -352 -353 -354 355 -356 357 358 359 360
0.00/0.01	v  -361 -362 363 364 365 -366 -367 -368 369 -370
0.00/0.01	v  -371 -372 373 -374 -375 376 377 378 -379 380
0.00/0.01	v  381 -382 -383 384 -385 386 387 388 -389 -390
0.00/0.01	v  391 -392 393 -394 -395 -396 -397 398 399 -400
0.00/0.01	v  -401 -402 403 -404 405 406 -407 -408 409 -410
0.00/0.01	v  411 -412 -413 -414 415 416 417 -418 -419 -420
0.00/0.01	v  421 422 -423 424 425 -426 -427 428 -429 430
0.00/0.01	v  -431 -432 433 -434 435 436 437 -438 439 440
0.00/0.01	v  -441 -442 443 444 -445 -446 -447 448 449 -450
0.00/0.01	v  451 -452 453 454 455 456 457 -458 -459 460
0.00/0.01	v  -461 -462 -463 464 -465 -466 -467 -468 -469 -470
0.00/0.01	v  -471 472 -473 474 475 476 -477 -478 -479 -480
0.00/0.01	v  0
0.00/0.01	c SATZILLA_TIME=0.010000

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-1539806-1238589396/watcher-1539806-1238589396 -o /tmp/evaluation-result-1539806-1238589396/solver-1539806-1238589396 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1539806-1238589396.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: 0.84 0.95 0.99 3/64 2624
/proc/meminfo: memFree=1480240/2055920 swapFree=4172472/4192956
[pid=2624] ppid=2622 vsize=2056 CPUtime=0
/proc/2624/stat : 2624 (SATzilla2009_R) R 2622 2624 2586 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1131602872 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 0 0 0
/proc/2624/statm: 514 112 96 399 0 111 0
[pid=2625] ppid=2624 vsize=6508 CPUtime=0
/proc/2625/stat : 2625 (SATenstein) R 2624 2624 2586 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 1131602873 6664192 261 1992294400 134512640 134854740 4294955360 18446744073709551615 134782527 0 0 8392704 0 0 0 0 17 0 0 0
/proc/2625/statm: 1627 261 151 83 0 1188 0

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

Child status: 10
Real time (s): 0.0187349
CPU time (s): 0.017996
CPU user time (s): 0.014997
CPU system time (s): 0.002999
CPU usage (%): 96.056
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 540
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= 4
involuntary context switches= 1

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node37 at 2009-04-01 14:36:36
IDJOB=1539806
IDBENCH=70715
IDSOLVER=526
FILE ID=node37/1539806-1238589396
PBS_JOBID= 9068311
Free space on /tmp= 66428 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S957997002-040.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539806-1238589396/watcher-1539806-1238589396 -o /tmp/evaluation-result-1539806-1238589396/solver-1539806-1238589396 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1539806-1238589396.cnf

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

MD5SUM BENCH= 92eaf07e43795c59dd53e3c833d9e0f0
RANDOM SEED=988394652

node37.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		: 3000.213
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		: 3000.213
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:       1480784 kB
Buffers:         97872 kB
Cached:         378252 kB
SwapCached:      14360 kB
Active:         240268 kB
Inactive:       251584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1480784 kB
SwapTotal:     4192956 kB
SwapFree:      4172472 kB
Dirty:           31548 kB
Writeback:           0 kB
Mapped:          18680 kB
Slab:            69440 kB
Committed_AS:  3046340 kB
PageTables:       1384 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= 66400 MiB
End job on node37 at 2009-04-01 14:36:37