Trace number 1630705

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 0.32095 0.321371

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S449556655-088.cnf
MD5SUMa2cac78f4268ad770e0a9e5d4a9fdb69
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014996
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 

0.29/0.32	c SATzilla is building models for class 1
0.29/0.32	c run presolver SATenstein for 30 seconds ... 
0.29/0.32	c Bin: Executing SATenstein
0.29/0.32	c spawning binary file with 30 seconds ...
0.29/0.32	c child exited successfully
0.29/0.32	c SATenstein returned code 10.
0.29/0.32	s SATISFIABLE
0.29/0.32	v  -1 2 -3 4 -5 6 7 -8 9 10
0.29/0.32	v  11 12 13 14 -15 16 17 -18 19 20
0.29/0.32	v  -21 -22 23 -24 25 -26 -27 28 29 30
0.29/0.32	v  31 32 -33 34 35 36 -37 -38 39 -40
0.29/0.32	v  -41 -42 43 -44 45 46 47 -48 -49 50
0.29/0.32	v  -51 -52 53 54 55 56 -57 58 59 -60
0.29/0.32	v  -61 -62 -63 -64 -65 -66 67 -68 69 -70
0.29/0.32	v  71 -72 73 74 75 -76 -77 78 79 80
0.29/0.32	v  -81 -82 -83 -84 -85 86 -87 -88 -89 90
0.29/0.32	v  91 -92 93 94 -95 96 97 -98 -99 -100
0.29/0.32	v  101 102 103 -104 -105 106 107 108 109 110
0.29/0.32	v  111 -112 113 -114 115 116 -117 -118 -119 120
0.29/0.32	v  -121 122 123 124 125 -126 127 -128 -129 130
0.29/0.32	v  131 132 -133 -134 -135 136 137 138 -139 140
0.29/0.32	v  141 -142 -143 -144 145 -146 -147 -148 -149 150
0.29/0.32	v  -151 152 153 154 -155 156 -157 158 -159 160
0.29/0.32	v  161 162 163 -164 165 -166 167 -168 -169 170
0.29/0.32	v  -171 -172 173 174 175 176 177 178 179 -180
0.29/0.32	v  181 182 183 -184 185 -186 -187 -188 189 -190
0.29/0.32	v  -191 192 -193 -194 -195 -196 197 198 199 200
0.29/0.32	v  -201 -202 -203 204 205 206 -207 -208 -209 -210
0.29/0.32	v  -211 -212 -213 214 215 -216 217 -218 219 220
0.29/0.32	v  -221 222 -223 224 -225 -226 -227 -228 229 -230
0.29/0.32	v  -231 232 233 234 -235 236 -237 -238 -239 240
0.29/0.32	v  241 -242 -243 244 -245 246 247 -248 249 250
0.29/0.32	v  251 252 -253 -254 -255 -256 257 -258 259 -260
0.29/0.32	v  -261 262 -263 264 265 -266 -267 268 269 270
0.29/0.32	v  271 -272 273 274 275 -276 -277 278 279 -280
0.29/0.32	v  -281 282 283 -284 -285 286 -287 -288 289 290
0.29/0.32	v  -291 -292 -293 -294 -295 -296 -297 -298 -299 -300
0.29/0.32	v  301 -302 -303 304 305 -306 -307 -308 -309 310
0.29/0.32	v  311 312 -313 314 315 -316 317 318 319 -320
0.29/0.32	v  321 -322 323 -324 -325 326 327 -328 -329 -330
0.29/0.32	v  -331 -332 333 334 -335 -336 -337 -338 339 -340
0.29/0.32	v  -341 -342 -343 344 -345 -346 347 -348 349 350
0.29/0.32	v  -351 352 353 -354 -355 -356 -357 358 359 360
0.29/0.32	v  361 362 363 -364 -365 -366 -367 368 -369 370
0.29/0.32	v  -371 -372 373 -374 375 376 377 -378 -379 380
0.29/0.32	v  -381 382 383 384 -385 386 387 388 389 390
0.29/0.32	v  391 392 -393 394 395 -396 -397 398 -399 -400
0.29/0.32	v  -401 402 -403 -404 -405 -406 407 408 409 -410
0.29/0.32	v  411 -412 413 -414 -415 -416 -417 -418 419 420
0.29/0.32	v  -421 -422 423 424 -425 426 -427 428 429 430
0.29/0.32	v  -431 -432 433 434 -435 -436 -437 438 -439 -440
0.29/0.32	v  441 -442 443 -444 445 446 -447 -448 -449 -450
0.29/0.32	v  -451 -452 -453 -454 455 456 -457 -458 459 460
0.29/0.32	v  -461 -462 -463 -464 -465 466 467 -468 -469 470
0.29/0.32	v  471 472 -473 -474 475 -476 -477 478 -479 -480
0.29/0.32	v  0
0.29/0.32	c SATZILLA_TIME=0.310000

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-1630705-1240142178/watcher-1630705-1240142178 -o /tmp/evaluation-result-1630705-1240142178/solver-1630705-1240142178 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1630705-1240142178.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: 0.94 0.98 0.99 3/64 26659
/proc/meminfo: memFree=850328/2055920 swapFree=4192956/4192956
[pid=26659] ppid=26657 vsize=2056 CPUtime=0
/proc/26659/stat : 26659 (SATzilla2009_R) R 26657 26659 26514 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42251688 2105344 112 1992294400 134512640 136149437 4294956240 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 0 0 0
/proc/26659/statm: 514 112 96 399 0 111 0
[pid=26660] ppid=26659 vsize=6508 CPUtime=0
/proc/26660/stat : 26660 (SATenstein) R 26659 26659 26514 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 42251688 6664192 261 1992294400 134512640 134854740 4294955360 18446744073709551615 134782527 0 0 8392704 0 0 0 0 17 0 0 0
/proc/26660/statm: 1627 261 151 83 0 1188 0

[startup+0.098709 s]
/proc/loadavg: 0.94 0.98 0.99 3/64 26659
/proc/meminfo: memFree=850328/2055920 swapFree=4192956/4192956
[pid=26659] ppid=26657 vsize=2056 CPUtime=0
/proc/26659/stat : 26659 (SATzilla2009_R) S 26657 26659 26514 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 42251688 2105344 112 1992294400 134512640 136149437 4294956240 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/26659/statm: 514 112 96 399 0 111 0
[pid=26660] ppid=26659 vsize=6504 CPUtime=0.09
/proc/26660/stat : 26660 (SATenstein) R 26659 26659 26514 0 -1 4194304 370 0 0 0 9 0 0 0 19 0 1 0 42251688 6660096 345 1992294400 134512640 134854740 4294955360 18446744073709551615 134761151 0 0 8392704 0 0 0 0 17 0 0 0
/proc/26660/statm: 1626 345 174 83 0 1187 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8560

[startup+0.101708 s]
/proc/loadavg: 0.94 0.98 0.99 3/64 26659
/proc/meminfo: memFree=850328/2055920 swapFree=4192956/4192956
[pid=26659] ppid=26657 vsize=2056 CPUtime=0
/proc/26659/stat : 26659 (SATzilla2009_R) S 26657 26659 26514 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 42251688 2105344 112 1992294400 134512640 136149437 4294956240 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/26659/statm: 514 112 96 399 0 111 0
[pid=26660] ppid=26659 vsize=6504 CPUtime=0.09
/proc/26660/stat : 26660 (SATenstein) R 26659 26659 26514 0 -1 4194304 370 0 0 0 9 0 0 0 19 0 1 0 42251688 6660096 345 1992294400 134512640 134854740 4294955360 18446744073709551615 134760607 0 0 8392704 0 0 0 0 17 0 0 0
/proc/26660/statm: 1626 345 174 83 0 1187 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8560

[startup+0.301745 s]
/proc/loadavg: 0.94 0.98 0.99 3/64 26659
/proc/meminfo: memFree=850328/2055920 swapFree=4192956/4192956
[pid=26659] ppid=26657 vsize=2056 CPUtime=0
/proc/26659/stat : 26659 (SATzilla2009_R) S 26657 26659 26514 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 42251688 2105344 112 1992294400 134512640 136149437 4294956240 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/26659/statm: 514 112 96 399 0 111 0
[pid=26660] ppid=26659 vsize=6504 CPUtime=0.29
/proc/26660/stat : 26660 (SATenstein) R 26659 26659 26514 0 -1 4194304 370 0 0 0 29 0 0 0 21 0 1 0 42251688 6660096 345 1992294400 134512640 134854740 4294955360 18446744073709551615 134760386 0 0 8392704 0 0 0 0 17 0 0 0
/proc/26660/statm: 1626 345 174 83 0 1187 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8560

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

Child status: 10
Real time (s): 0.321371
CPU time (s): 0.32095
CPU user time (s): 0.316951
CPU system time (s): 0.003999
CPU usage (%): 99.869
Max. virtual memory (cumulated for all children) (KiB): 8560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.316951
system time used= 0.003999
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= 3

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node7 at 2009-04-19 13:56:18
IDJOB=1630705
IDBENCH=70721
IDSOLVER=587
FILE ID=node7/1630705-1240142178
PBS_JOBID= 9159269
Free space on /tmp= 66344 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S449556655-088.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1630705-1240142178/watcher-1630705-1240142178 -o /tmp/evaluation-result-1630705-1240142178/solver-1630705-1240142178 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1630705-1240142178.cnf

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

MD5SUM BENCH= a2cac78f4268ad770e0a9e5d4a9fdb69
RANDOM SEED=741948924

node7.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		: 3000.256
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		: 3000.256
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:        850872 kB
Buffers:         94668 kB
Cached:        1008360 kB
SwapCached:          0 kB
Active:         365960 kB
Inactive:       750440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        850872 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           31784 kB
Writeback:           0 kB
Mapped:          23096 kB
Slab:            74648 kB
Committed_AS:   187436 kB
PageTables:       1444 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= 66312 MiB
End job on node7 at 2009-04-19 13:56:19