Trace number 1629731

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 0.071988 0.072217

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S1258122549-031.cnf
MD5SUMe4beefd25957794efe8088679c7fff55
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2125
Sum of the clauses size6375
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32125
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 = 500, numClauses = 2125
0.00/0.00	c General parameters: seed = 1142564656, 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 
0.00/0.07	c      0    50988         0     50988     12048      0.07
0.00/0.07	s SATISFIABLE
0.00/0.07	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 -481 482 -483 484 485 -486 -487 -488 -489 -490 491 -492 493 -494 -495 -496 497 498 499 -500 0
0.00/0.07	c Done in 0.070000 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-1629731-1240140667/watcher-1629731-1240140667 -o /tmp/evaluation-result-1629731-1240140667/solver-1629731-1240140667 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1629731-1240140667.cnf 1142564656 

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: 1.12 1.03 1.00 2/64 22183
/proc/meminfo: memFree=1048136/2055920 swapFree=4192956/4192956
[pid=22183] ppid=22181 vsize=1017720 CPUtime=0
/proc/22183/stat : 22183 (gnovelty+2) R 22181 22183 21878 0 -1 4194304 188 0 0 0 0 0 0 0 18 0 1 0 42095519 1042145280 172 1992294400 134512640 135663704 4294956224 18446744073709551615 134521988 0 0 4096 0 0 0 0 17 1 0 0
/proc/22183/statm: 254430 173 112 281 0 254146 0

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

Child status: 10
Real time (s): 0.072217
CPU time (s): 0.071988
CPU user time (s): 0.070989
CPU system time (s): 0.000999
CPU usage (%): 99.6829
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.070989
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= 197
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 0.000999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node75 at 2009-04-19 13:31:07
IDJOB=1629731
IDBENCH=70648
IDSOLVER=585
FILE ID=node75/1629731-1240140667
PBS_JOBID= 9157868
Free space on /tmp= 66336 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S1258122549-031.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629731-1240140667/watcher-1629731-1240140667 -o /tmp/evaluation-result-1629731-1240140667/solver-1629731-1240140667 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1629731-1240140667.cnf 1142564656

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

MD5SUM BENCH= e4beefd25957794efe8088679c7fff55
RANDOM SEED=1142564656

node75.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		: 3000.213
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		: 3000.213
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:       1048616 kB
Buffers:         63348 kB
Cached:         850368 kB
SwapCached:          0 kB
Active:         209160 kB
Inactive:       718548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1048616 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1420 kB
Writeback:           0 kB
Mapped:          23708 kB
Slab:            65556 kB
Committed_AS:   147168 kB
PageTables:       1416 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= 66336 MiB
End job on node75 at 2009-04-19 13:31:07