Trace number 1534728

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
adaptg2wsat2009++ 2009-03-23SAT 0.061989 0.062279

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1730125812-056.cnf
MD5SUM69b797da312e506f0ab25c6b8dcfe4ab
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
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 

0.01/0.06	c 0 clauses are redundant and removed
0.01/0.06	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.01/0.06	c 0 vars are fixed and 0 clauses are removed after lookahead
0.01/0.06	c initial seed is 43010374
0.01/0.06	c try 1 flip j 51349 walk 41725 seed 876024410
0.01/0.06	c A solution is found
0.01/0.06	s SATISFIABLE
0.01/0.06	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 -461 -462 463 464 -465 466 467 468 469 470 471 -472 473 -474 475 -476 477 -478 -479 480 
0.01/0.06	v 0 
0.01/0.06	c Done (mycputime is 0.060 seconds)

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-1534728-1238590950/watcher-1534728-1238590950 -o /tmp/evaluation-result-1534728-1238590950/solver-1534728-1238590950 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534728-1238590950.cnf 43010374 

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: 1.69 1.79 1.54 3/73 17195
/proc/meminfo: memFree=1368704/2055920 swapFree=4175408/4192956
[pid=17195] ppid=17193 vsize=415928 CPUtime=0
/proc/17195/stat : 17195 (adaptg2wsat2009) R 17193 17195 16664 0 -1 4194304 142 0 0 0 0 0 0 0 20 0 1 0 1011513528 425910272 125 1992294400 134512640 135107411 4294956192 18446744073709551615 134523308 0 0 4096 0 0 0 0 17 1 0 0
/proc/17195/statm: 103982 125 49 145 0 102858 0

[startup+0.013946 s]
/proc/loadavg: 1.69 1.79 1.54 3/73 17195
/proc/meminfo: memFree=1368704/2055920 swapFree=4175408/4192956
[pid=17195] ppid=17193 vsize=416064 CPUtime=0.01
/proc/17195/stat : 17195 (adaptg2wsat2009) R 17193 17195 16664 0 -1 4194304 206 0 0 0 1 0 0 0 20 0 1 0 1011513528 426049536 189 1992294400 134512640 135107411 4294956192 18446744073709551615 134532128 0 0 4096 0 0 0 0 17 1 0 0
/proc/17195/statm: 104016 189 59 145 0 102892 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 416064

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

[startup+0.013946 s]
/proc/loadavg: 1.69 1.79 1.54 3/73 17195
/proc/meminfo: memFree=1368704/2055920 swapFree=4175408/4192956
[pid=17195] ppid=17193 vsize=416064 CPUtime=0.01
/proc/17195/stat : 17195 (adaptg2wsat2009) R 17193 17195 16664 0 -1 4194304 206 0 0 0 1 0 0 0 20 0 1 0 1011513528 426049536 189 1992294400 134512640 135107411 4294956192 18446744073709551615 134532128 0 0 4096 0 0 0 0 17 1 0 0
/proc/17195/statm: 104016 189 59 145 0 102892 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 416064

Child status: 10
Real time (s): 0.062279
CPU time (s): 0.061989
CPU user time (s): 0.05999
CPU system time (s): 0.001999
CPU usage (%): 99.5343
Max. virtual memory (cumulated for all children) (KiB): 416064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.05999
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 219
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= 2
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node79 at 2009-04-01 15:02:30
IDJOB=1534728
IDBENCH=70719
IDSOLVER=543
FILE ID=node79/1534728-1238590950
PBS_JOBID= 9062238
Free space on /tmp= 65556 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1730125812-056.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534728-1238590950/watcher-1534728-1238590950 -o /tmp/evaluation-result-1534728-1238590950/solver-1534728-1238590950 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534728-1238590950.cnf 43010374

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

MD5SUM BENCH= 69b797da312e506f0ab25c6b8dcfe4ab
RANDOM SEED=43010374

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:       1369120 kB
Buffers:         95016 kB
Cached:         485132 kB
SwapCached:      11792 kB
Active:         339392 kB
Inactive:       256896 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1369120 kB
SwapTotal:     4192956 kB
SwapFree:      4175408 kB
Dirty:            4880 kB
Writeback:           0 kB
Mapped:          22644 kB
Slab:            75680 kB
Committed_AS:  2840368 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= 65552 MiB
End job on node79 at 2009-04-01 15:02:30