Trace number 1629932

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
gnovelty+2 2009-03-22SAT 0.027995 0.0294621

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S957997002-040.cnf
MD5SUM92eaf07e43795c59dd53e3c833d9e0f0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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 

0.00/0.00	c +------------------------------+
0.00/0.00	c | gNovelty+, version 2.0       |
0.00/0.00	c +------------------------------+
0.00/0.00	c gnovelty+ -h for help
0.00/0.00	c 
0.00/0.00	c Problem instance: numAtoms = 480, numClauses = 2040
0.00/0.00	c General parameters: seed = 1813558007, timeout = 10 secs, targetCost = 0, print solution: no
0.00/0.00	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.00/0.00	c tries = 1
0.00/0.00	c 
0.00/0.02	c      0    18083         0     18083      6287      0.02
0.00/0.02	s SATISFIABLE
0.00/0.02	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
0.00/0.02	c Done in 0.020000 seconds

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-1629932-1240142045/watcher-1629932-1240142045 -o /tmp/evaluation-result-1629932-1240142045/solver-1629932-1240142045 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1629932-1240142045.cnf 1813558007 

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: 1.00 1.00 1.00 2/64 28129
/proc/meminfo: memFree=1320704/2055920 swapFree=4192956/4192956
[pid=28129] ppid=28127 vsize=1017720 CPUtime=0
/proc/28129/stat : 28129 (gnovelty+2) R 28127 28129 26455 0 -1 4194304 171 0 0 0 0 0 0 0 18 0 1 0 42231631 1042145280 154 1992294400 134512640 135663704 4294956224 18446744073709551615 135157312 0 0 4096 0 0 0 0 17 1 0 0
/proc/28129/statm: 254430 154 110 281 0 254146 0

[startup+0.00697703 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 28129
/proc/meminfo: memFree=1320704/2055920 swapFree=4192956/4192956
[pid=28129] ppid=28127 vsize=1017720 CPUtime=0
/proc/28129/stat : 28129 (gnovelty+2) R 28127 28129 26455 0 -1 4194304 191 0 0 0 0 0 0 0 18 0 1 0 42231631 1042145280 174 1992294400 134512640 135663704 4294956224 18446744073709551615 134524524 0 0 4096 0 0 0 0 17 1 0 0
/proc/28129/statm: 254430 174 112 281 0 254146 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1017720

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

[startup+0.00697703 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 28129
/proc/meminfo: memFree=1320704/2055920 swapFree=4192956/4192956
[pid=28129] ppid=28127 vsize=1017720 CPUtime=0
/proc/28129/stat : 28129 (gnovelty+2) R 28127 28129 26455 0 -1 4194304 191 0 0 0 0 0 0 0 18 0 1 0 42231631 1042145280 174 1992294400 134512640 135663704 4294956224 18446744073709551615 134524524 0 0 4096 0 0 0 0 17 1 0 0
/proc/28129/statm: 254430 174 112 281 0 254146 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1017720

Child status: 10
Real time (s): 0.0294621
CPU time (s): 0.027995
CPU user time (s): 0.027995
CPU system time (s): 0
CPU usage (%): 95.0204
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.027995
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 195
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= 6

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-19 13:54:05
IDJOB=1629932
IDBENCH=70715
IDSOLVER=585
FILE ID=node61/1629932-1240142045
PBS_JOBID= 9157898
Free space on /tmp= 66456 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S957997002-040.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629932-1240142045/watcher-1629932-1240142045 -o /tmp/evaluation-result-1629932-1240142045/solver-1629932-1240142045 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1629932-1240142045.cnf 1813558007

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

MD5SUM BENCH= 92eaf07e43795c59dd53e3c833d9e0f0
RANDOM SEED=1813558007

node61.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		: 3000.216
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		: 3000.216
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:       1321184 kB
Buffers:         84296 kB
Cached:         572312 kB
SwapCached:          0 kB
Active:         313568 kB
Inactive:       355776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1321184 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1576 kB
Writeback:           0 kB
Mapped:          22496 kB
Slab:            51560 kB
Committed_AS:   204124 kB
PageTables:       1368 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66456 MiB
End job on node61 at 2009-04-19 13:54:05