Trace number 1528886

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 0.044993 0.045673

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S602463346-055.cnf
MD5SUMf50ad9abb19635b49e2de66215f8fa56
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
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 = 457332749, 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 
0.02/0.04	c      0    32531         0     32531      9615      0.04
0.02/0.04	s SATISFIABLE
0.02/0.04	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
0.02/0.04	c Done in 0.040000 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-1528886-1238570476/watcher-1528886-1238570476 -o /tmp/evaluation-result-1528886-1238570476/solver-1528886-1238570476 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1528886-1238570476.cnf 457332749 

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: 2.00 2.03 1.83 3/65 3478
/proc/meminfo: memFree=1208736/2055920 swapFree=4176856/4192956
[pid=3478] ppid=3476 vsize=1017720 CPUtime=0
/proc/3478/stat : 3478 (gnovelty+2) R 3476 3478 3073 0 -1 4194304 190 0 0 0 0 0 0 0 20 0 1 0 1016421370 1042145280 173 1992294400 134512640 135663704 4294956208 18446744073709551615 134525255 0 0 4096 0 0 0 0 17 1 0 0
/proc/3478/statm: 254430 173 112 281 0 254146 0

[startup+0.0227881 s]
/proc/loadavg: 2.00 2.03 1.83 3/65 3478
/proc/meminfo: memFree=1208736/2055920 swapFree=4176856/4192956
[pid=3478] ppid=3476 vsize=1017720 CPUtime=0.02
/proc/3478/stat : 3478 (gnovelty+2) R 3476 3478 3073 0 -1 4194304 193 0 0 0 2 0 0 0 20 0 1 0 1016421370 1042145280 176 1992294400 134512640 135663704 4294956208 18446744073709551615 134524882 0 0 4096 0 0 0 0 17 1 0 0
/proc/3478/statm: 254430 176 112 281 0 254146 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1017720

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

[startup+0.0227881 s]
/proc/loadavg: 2.00 2.03 1.83 3/65 3478
/proc/meminfo: memFree=1208736/2055920 swapFree=4176856/4192956
[pid=3478] ppid=3476 vsize=1017720 CPUtime=0.02
/proc/3478/stat : 3478 (gnovelty+2) R 3476 3478 3073 0 -1 4194304 193 0 0 0 2 0 0 0 20 0 1 0 1016421370 1042145280 176 1992294400 134512640 135663704 4294956208 18446744073709551615 134524882 0 0 4096 0 0 0 0 17 1 0 0
/proc/3478/statm: 254430 176 112 281 0 254146 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1017720

Child status: 10
Real time (s): 0.045673
CPU time (s): 0.044993
CPU user time (s): 0.044993
CPU system time (s): 0
CPU usage (%): 98.5111
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.044993
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= 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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-04-01 09:21:16
IDJOB=1528886
IDBENCH=70649
IDSOLVER=548
FILE ID=node8/1528886-1238570476
PBS_JOBID= 9070518
Free space on /tmp= 64248 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S602463346-055.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528886-1238570476/watcher-1528886-1238570476 -o /tmp/evaluation-result-1528886-1238570476/solver-1528886-1238570476 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1528886-1238570476.cnf 457332749

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

MD5SUM BENCH= f50ad9abb19635b49e2de66215f8fa56
RANDOM SEED=457332749

node8.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:       1209216 kB
Buffers:        106756 kB
Cached:         633604 kB
SwapCached:       9204 kB
Active:         180160 kB
Inactive:       570828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1209216 kB
SwapTotal:     4192956 kB
SwapFree:      4176856 kB
Dirty:            1420 kB
Writeback:           0 kB
Mapped:          16364 kB
Slab:            81496 kB
Committed_AS:  2708740 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 64248 MiB
End job on node8 at 2009-04-01 09:21:17