Trace number 1539840

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_C 2009-03-22SAT 0.195969 0.196628

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 

0.10/0.19	c SATzilla is building models for class 2
0.10/0.19	c run presolver march_dl2004 for 5 seconds ... 
0.10/0.19	c Bin: Executing march_dl2004
0.10/0.19	c spawning binary file with 5 seconds ...
0.10/0.19	c child exited successfully
0.10/0.19	c march_dl2004 returned code 10.
0.10/0.19	s SATISFIABLE
0.10/0.19	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 28 29 30 -31 -32 -33 34 -35 36 37 -38 39 -40 -41 -42 43 44 -45 46 -47 -48 49 50 -51 52 -53 -54 -55 -56 57 58 59 60 -61 -62 63 -64 65 -66 67 -68 -69 70 71 -72 73 74 75 -76 -77 -78 -79 80 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 0
0.10/0.19	c SATZILLA_TIME=0.190000

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-1539840-1238593438/watcher-1539840-1238593438 -o /tmp/evaluation-result-1539840-1238593438/solver-1539840-1238593438 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_C HOME/instance-1539840-1238593438.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 4684
/proc/meminfo: memFree=1555360/2055920 swapFree=4178736/4192956
[pid=4684] ppid=4682 vsize=2056 CPUtime=0
/proc/4684/stat : 4684 (SATzilla2009_C) S 4682 4684 4196 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 485677721 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4684/statm: 514 112 96 399 0 111 0
[pid=4685] ppid=4684 vsize=772 CPUtime=0
/proc/4685/stat : 4685 (march_dl2004) R 4684 4684 4196 0 -1 4194304 118 0 0 0 0 0 0 0 19 0 1 0 485677721 790528 110 1992294400 134512640 134996440 4294956192 18446744073709551615 134617627 0 0 8392704 0 0 0 0 17 0 0 0
/proc/4685/statm: 193 110 53 118 0 72 0

[startup+0.0840699 s]
/proc/loadavg: 0.91 0.95 0.97 3/65 4684
/proc/meminfo: memFree=1555360/2055920 swapFree=4178736/4192956
[pid=4684] ppid=4682 vsize=2056 CPUtime=0
/proc/4684/stat : 4684 (SATzilla2009_C) S 4682 4684 4196 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 485677721 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4684/statm: 514 112 96 399 0 111 0
[pid=4685] ppid=4684 vsize=1168 CPUtime=0.08
/proc/4685/stat : 4685 (march_dl2004) R 4684 4684 4196 0 -1 4194304 245 0 0 0 8 0 0 0 19 0 1 0 485677721 1196032 237 1992294400 134512640 134996440 4294956192 18446744073709551615 134532912 0 0 8392704 0 0 0 0 17 0 0 0
/proc/4685/statm: 292 237 74 118 0 171 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3224

[startup+0.102069 s]
/proc/loadavg: 0.91 0.95 0.97 3/65 4684
/proc/meminfo: memFree=1555360/2055920 swapFree=4178736/4192956
[pid=4684] ppid=4682 vsize=2056 CPUtime=0
/proc/4684/stat : 4684 (SATzilla2009_C) S 4682 4684 4196 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 485677721 2105344 112 1992294400 134512640 136149437 4294956224 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4684/statm: 514 112 96 399 0 111 0
[pid=4685] ppid=4684 vsize=1168 CPUtime=0.1
/proc/4685/stat : 4685 (march_dl2004) R 4684 4684 4196 0 -1 4194304 247 0 0 0 10 0 0 0 19 0 1 0 485677721 1196032 239 1992294400 134512640 134996440 4294956192 18446744073709551615 134528147 0 0 8392704 0 0 0 0 17 0 0 0
/proc/4685/statm: 292 239 74 118 0 171 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3224

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

Child status: 10
Real time (s): 0.196628
CPU time (s): 0.195969
CPU user time (s): 0.19497
CPU system time (s): 0.000999
CPU usage (%): 99.6649
Max. virtual memory (cumulated for all children) (KiB): 3224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19497
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= 421
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 0.000999 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=1539840
IDBENCH=70726
IDSOLVER=527
FILE ID=node32/1539840-1238593438
PBS_JOBID= 9068310
Free space on /tmp= 66456 MiB

SOLVER NAME= SATzilla2009_C 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
COMMAND LINE= HOME/SATzilla2009_C BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539840-1238593438/watcher-1539840-1238593438 -o /tmp/evaluation-result-1539840-1238593438/solver-1539840-1238593438 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_C HOME/instance-1539840-1238593438.cnf

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

MD5SUM BENCH= cc65c4677bcd52e268abf185559aaea4
RANDOM SEED=406395619

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:       1555848 kB
Buffers:         95724 kB
Cached:         314588 kB
SwapCached:       7344 kB
Active:         242960 kB
Inactive:       176108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1555848 kB
SwapTotal:     4192956 kB
SwapFree:      4178736 kB
Dirty:           31480 kB
Writeback:           0 kB
Mapped:          14484 kB
Slab:            66776 kB
Committed_AS:  1697916 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 15:43:59