Trace number 1539839

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 0.015997 0.0171209

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
MD5SUMcc65c4677bcd52e268abf185559aaea4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
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  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-1539839-1238593438/watcher-1539839-1238593438 -o /tmp/evaluation-result-1539839-1238593438/solver-1539839-1238593438 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1539839-1238593438.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: 0.91 0.95 0.97 3/65 4656
/proc/meminfo: memFree=1555432/2055920 swapFree=4178736/4192956
[pid=4656] ppid=4654 vsize=2056 CPUtime=0
/proc/4656/stat : 4656 (SATzilla2009_R) S 4654 4656 4196 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 485677667 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4656/statm: 514 112 96 399 0 111 0
[pid=4657] ppid=4656 vsize=6508 CPUtime=0
/proc/4657/stat : 4657 (SATenstein) R 4656 4656 4196 0 -1 4194304 280 0 0 0 0 0 0 0 19 0 1 0 485677668 6664192 261 1992294400 134512640 134854740 4294955360 18446744073709551615 134782527 0 0 8392704 0 0 0 0 17 0 0 0
/proc/4657/statm: 1627 262 151 83 0 1188 0

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

Child status: 10
Real time (s): 0.0171209
CPU time (s): 0.015997
CPU user time (s): 0.012998
CPU system time (s): 0.002999
CPU usage (%): 93.4354
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.012998
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= 538
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= 2

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node32 at 2009-04-01 15:43:58
IDJOB=1539839
IDBENCH=70726
IDSOLVER=526
FILE ID=node32/1539839-1238593438
PBS_JOBID= 9068310
Free space on /tmp= 66456 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539839-1238593438/watcher-1539839-1238593438 -o /tmp/evaluation-result-1539839-1238593438/solver-1539839-1238593438 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1539839-1238593438.cnf

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

MD5SUM BENCH= cc65c4677bcd52e268abf185559aaea4
RANDOM SEED=585197431

node32.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:       1555976 kB
Buffers:         95644 kB
Cached:         314600 kB
SwapCached:       7344 kB
Active:         242860 kB
Inactive:       176112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1555976 kB
SwapTotal:     4192956 kB
SwapFree:      4178736 kB
Dirty:           31480 kB
Writeback:           0 kB
Mapped:          14484 kB
Slab:            66724 kB
Committed_AS:  1697892 kB
PageTables:       1488 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 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 node32 at 2009-04-01 15:43:58