Trace number 1539749

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 0.009998 0.010245

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S1339293988-069.cnf
MD5SUM04c00558435f25dfb5b6e5262d4684dc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009998
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
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  0
0.00/0.01	c SATZILLA_TIME=0.000000

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-1539749-1238583075/watcher-1539749-1238583075 -o /tmp/evaluation-result-1539749-1238583075/solver-1539749-1238583075 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1539749-1238583075.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: 0.92 1.00 0.99 3/64 28421
/proc/meminfo: memFree=1053696/2055920 swapFree=4167280/4192956
[pid=28421] ppid=28419 vsize=2056 CPUtime=0
/proc/28421/stat : 28421 (SATzilla2009_R) S 28419 28421 27709 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130973131 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/28421/statm: 514 112 96 399 0 111 0
[pid=28422] ppid=28421 vsize=6508 CPUtime=0
/proc/28422/stat : 28422 (SATenstein) R 28421 28421 27709 0 -1 4194304 282 0 0 0 0 0 0 0 19 0 1 0 1130973131 6664192 263 1992294400 134512640 134854740 4294955344 18446744073709551615 134782321 0 0 8392704 0 0 0 0 17 0 0 0
/proc/28422/statm: 1627 263 151 83 0 1188 0

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

Child status: 10
Real time (s): 0.010245
CPU time (s): 0.009998
CPU user time (s): 0.005999
CPU system time (s): 0.003999
CPU usage (%): 97.5893
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.005999
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= 533
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 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node31 at 2009-04-01 12:51:15
IDJOB=1539749
IDBENCH=70696
IDSOLVER=526
FILE ID=node31/1539749-1238583075
PBS_JOBID= 9062199
Free space on /tmp= 66424 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1339293988-069.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539749-1238583075/watcher-1539749-1238583075 -o /tmp/evaluation-result-1539749-1238583075/solver-1539749-1238583075 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1539749-1238583075.cnf

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

MD5SUM BENCH= 04c00558435f25dfb5b6e5262d4684dc
RANDOM SEED=987875206

node31.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		: 3000.214
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		: 3000.214
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:       1054240 kB
Buffers:        120776 kB
Cached:         764356 kB
SwapCached:      18724 kB
Active:         237516 kB
Inactive:       667840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1054240 kB
SwapTotal:     4192956 kB
SwapFree:      4167280 kB
Dirty:           31484 kB
Writeback:           0 kB
Mapped:          17416 kB
Slab:            82100 kB
Committed_AS:  3171828 kB
PageTables:       1472 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= 66396 MiB
End job on node31 at 2009-04-01 12:51:16