Trace number 1534727

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 0.067988 0.068258

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 

0.06/0.06	c 0 clauses are redundant and removed
0.06/0.06	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.06/0.06	c 0 vars are fixed and 0 clauses are removed after lookahead
0.06/0.06	c initial seed is 259887028
0.06/0.06	c try 1 flip j 60514 walk 52233 seed 239426192
0.06/0.06	c A solution is found
0.06/0.06	s SATISFIABLE
0.06/0.06	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 
0.06/0.06	v 0 
0.06/0.06	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-1534727-1238590949/watcher-1534727-1238590949 -o /tmp/evaluation-result-1534727-1238590949/solver-1534727-1238590949 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009 HOME/instance-1534727-1238590949.cnf 259887028 

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 17168
/proc/meminfo: memFree=1368704/2055920 swapFree=4175408/4192956
[pid=17168] ppid=17166 vsize=415928 CPUtime=0
/proc/17168/stat : 17168 (adaptg2wsat2009) R 17166 17168 16664 0 -1 4194304 143 0 0 0 0 0 0 0 20 0 1 0 1011513503 425910272 126 1992294400 134512640 135106963 4294956192 18446744073709551615 134523436 0 0 4096 0 0 0 0 17 1 0 0
/proc/17168/statm: 103982 126 50 145 0 102858 0

[startup+0.0625079 s]
/proc/loadavg: 1.69 1.79 1.54 3/73 17168
/proc/meminfo: memFree=1368704/2055920 swapFree=4175408/4192956
[pid=17168] ppid=17166 vsize=416064 CPUtime=0.06
/proc/17168/stat : 17168 (adaptg2wsat2009) R 17166 17168 16664 0 -1 4194304 206 0 0 0 6 0 0 0 20 0 1 0 1011513503 426049536 189 1992294400 134512640 135106963 4294956192 18446744073709551615 134531699 0 0 4096 0 0 0 0 17 1 0 0
/proc/17168/statm: 104016 189 60 145 0 102892 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 416064

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

[startup+0.0625079 s]
/proc/loadavg: 1.69 1.79 1.54 3/73 17168
/proc/meminfo: memFree=1368704/2055920 swapFree=4175408/4192956
[pid=17168] ppid=17166 vsize=416064 CPUtime=0.06
/proc/17168/stat : 17168 (adaptg2wsat2009) R 17166 17168 16664 0 -1 4194304 206 0 0 0 6 0 0 0 20 0 1 0 1011513503 426049536 189 1992294400 134512640 135106963 4294956192 18446744073709551615 134531699 0 0 4096 0 0 0 0 17 1 0 0
/proc/17168/statm: 104016 189 60 145 0 102892 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 416064

Child status: 10
Real time (s): 0.068258
CPU time (s): 0.067988
CPU user time (s): 0.066989
CPU system time (s): 0.000999
CPU usage (%): 99.6044
Max. virtual memory (cumulated for all children) (KiB): 416064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.066989
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= 217
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= 1

runsolver used 0.000999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node79 at 2009-04-01 15:02:29
IDJOB=1534727
IDBENCH=70719
IDSOLVER=542
FILE ID=node79/1534727-1238590949
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-1534727-1238590949/watcher-1534727-1238590949 -o /tmp/evaluation-result-1534727-1238590949/solver-1534727-1238590949 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009 HOME/instance-1534727-1238590949.cnf 259887028

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

MD5SUM BENCH= 69b797da312e506f0ab25c6b8dcfe4ab
RANDOM SEED=259887028

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:       1369184 kB
Buffers:         95008 kB
Cached:         485140 kB
SwapCached:      11792 kB
Active:         339380 kB
Inactive:       256884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1369184 kB
SwapTotal:     4192956 kB
SwapFree:      4175408 kB
Dirty:            4792 kB
Writeback:           0 kB
Mapped:          22644 kB
Slab:            75648 kB
Committed_AS:  2840336 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