Trace number 1539728

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 0.05799 0.0578379

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
MD5SUMa3570ddee79c19b1c54131a205337743
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.05	c SATzilla is building models for class 1
0.00/0.05	c run presolver SATenstein for 30 seconds ... 
0.00/0.05	c Bin: Executing SATenstein
0.00/0.05	c spawning binary file with 30 seconds ...
0.00/0.05	c child exited successfully
0.00/0.05	c SATenstein returned code 10.
0.00/0.05	s SATISFIABLE
0.00/0.05	v  1 -2 3 -4 -5 -6 7 -8 -9 10
0.00/0.05	v  11 -12 -13 14 15 -16 17 -18 19 -20
0.00/0.05	v  -21 22 -23 -24 25 26 -27 -28 -29 -30
0.00/0.05	v  31 -32 -33 34 35 -36 37 -38 39 40
0.00/0.05	v  41 42 -43 44 45 46 47 48 -49 -50
0.00/0.05	v  51 -52 -53 -54 55 -56 57 58 59 60
0.00/0.05	v  61 -62 -63 -64 -65 66 67 68 -69 -70
0.00/0.05	v  71 -72 73 -74 75 -76 77 78 79 -80
0.00/0.05	v  -81 82 83 -84 -85 86 87 -88 89 -90
0.00/0.05	v  91 92 -93 94 95 96 -97 -98 -99 -100
0.00/0.05	v  -101 -102 -103 104 -105 -106 107 -108 109 110
0.00/0.05	v  -111 -112 113 -114 -115 -116 117 118 119 120
0.00/0.05	v  -121 122 123 -124 -125 -126 127 -128 129 130
0.00/0.05	v  -131 -132 133 134 135 136 137 -138 -139 -140
0.00/0.05	v  -141 -142 -143 -144 -145 146 -147 148 149 150
0.00/0.05	v  -151 -152 -153 154 155 156 -157 -158 159 160
0.00/0.05	v  -161 -162 -163 164 165 166 167 -168 -169 170
0.00/0.05	v  -171 -172 173 174 -175 176 -177 178 179 180
0.00/0.05	v  181 182 -183 -184 185 -186 187 -188 -189 -190
0.00/0.05	v  -191 192 -193 -194 -195 -196 197 -198 199 200
0.00/0.05	v  201 202 203 204 205 206 -207 208 209 210
0.00/0.05	v  211 -212 213 214 215 -216 217 -218 219 -220
0.00/0.05	v  -221 222 223 -224 225 226 227 228 -229 -230
0.00/0.05	v  231 232 233 -234 -235 236 237 -238 -239 -240
0.00/0.05	v  241 242 243 244 -245 -246 -247 248 -249 250
0.00/0.05	v  251 252 253 -254 -255 -256 -257 -258 259 -260
0.00/0.05	v  261 -262 -263 264 265 266 267 -268 -269 -270
0.00/0.05	v  271 -272 -273 274 -275 276 -277 278 -279 -280
0.00/0.05	v  281 282 283 284 -285 286 287 288 -289 290
0.00/0.05	v  -291 292 -293 -294 -295 296 297 -298 299 -300
0.00/0.05	v  301 -302 -303 304 305 -306 307 -308 309 310
0.00/0.05	v  -311 312 -313 314 -315 316 -317 -318 -319 320
0.00/0.05	v  -321 -322 -323 324 325 326 -327 328 329 -330
0.00/0.05	v  331 332 333 -334 -335 -336 -337 338 -339 340
0.00/0.05	v  -341 342 343 344 345 346 347 348 349 -350
0.00/0.05	v  351 -352 353 -354 355 356 357 358 -359 360
0.00/0.05	v  361 362 363 364 365 366 -367 -368 -369 370
0.00/0.05	v  371 372 -373 -374 -375 376 377 378 379 380
0.00/0.05	v  -381 382 -383 -384 385 386 -387 -388 389 -390
0.00/0.05	v  -391 -392 -393 394 395 -396 397 398 -399 400
0.00/0.05	v  0
0.00/0.05	c SATZILLA_TIME=0.050000

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-1539728-1238581266/watcher-1539728-1238581266 -o /tmp/evaluation-result-1539728-1238581266/solver-1539728-1238581266 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1539728-1238581266.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: 1.00 1.00 1.00 3/73 16376
/proc/meminfo: memFree=1342752/2055920 swapFree=4175408/4192956
[pid=16376] ppid=16374 vsize=2056 CPUtime=0
/proc/16376/stat : 16376 (SATzilla2009_R) R 16374 16376 15492 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1010545226 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 0 0 0
/proc/16376/statm: 514 112 96 399 0 111 0
[pid=16377] ppid=16376 vsize=6508 CPUtime=0
/proc/16377/stat : 16377 (SATenstein) R 16376 16376 15492 0 -1 4194304 282 0 0 0 0 0 0 0 18 0 1 0 1010545226 6664192 263 1992294400 134512640 134854740 4294955344 18446744073709551615 4947133 0 0 8392704 0 0 0 0 17 0 0 0
/proc/16377/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): 0.0578379
CPU time (s): 0.05799
CPU user time (s): 0.053991
CPU system time (s): 0.003999
CPU usage (%): 100.263
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.053991
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= 531
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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node79 at 2009-04-01 12:21:06
IDJOB=1539728
IDBENCH=70689
IDSOLVER=526
FILE ID=node79/1539728-1238581266
PBS_JOBID= 9062188
Free space on /tmp= 65556 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539728-1238581266/watcher-1539728-1238581266 -o /tmp/evaluation-result-1539728-1238581266/solver-1539728-1238581266 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1539728-1238581266.cnf

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

MD5SUM BENCH= a3570ddee79c19b1c54131a205337743
RANDOM SEED=2146057037

node79.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		: 3000.232
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		: 3000.232
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1343232 kB
Buffers:         94348 kB
Cached:         511436 kB
SwapCached:      11792 kB
Active:         365232 kB
Inactive:       256748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1343232 kB
SwapTotal:     4192956 kB
SwapFree:      4175408 kB
Dirty:           31476 kB
Writeback:           0 kB
Mapped:          22684 kB
Slab:            75868 kB
Committed_AS:  2806244 kB
PageTables:       2004 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= 65524 MiB
End job on node79 at 2009-04-01 12:21:07