Trace number 1629740

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 0.052991 0.054265

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S658989873-070.cnf
MD5SUM33b307e970060c9ea54050d6d257eed0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.041992
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 = 256173894, 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 
0.00/0.05	c      0    36371         0     36371      8114      0.05
0.00/0.05	s SATISFIABLE
0.00/0.05	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
0.00/0.05	c Done in 0.050000 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-1629740-1240140749/watcher-1629740-1240140749 -o /tmp/evaluation-result-1629740-1240140749/solver-1629740-1240140749 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1629740-1240140749.cnf 256173894 

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: 1.03 1.02 1.00 3/64 22402
/proc/meminfo: memFree=1047304/2055920 swapFree=4192956/4192956
[pid=22402] ppid=22400 vsize=1017724 CPUtime=0
/proc/22402/stat : 22402 (gnovelty+2) R 22400 22402 21878 0 -1 4194304 145 0 0 0 0 0 0 0 20 0 1 0 42103791 1042149376 129 1992294400 134512640 135663704 4294956224 18446744073709551615 134549384 0 0 4096 0 0 0 0 17 1 0 0
/proc/22402/statm: 254431 129 96 281 0 254147 0

[startup+0.0111251 s]
/proc/loadavg: 1.03 1.02 1.00 3/64 22402
/proc/meminfo: memFree=1047304/2055920 swapFree=4192956/4192956
[pid=22402] ppid=22400 vsize=1017720 CPUtime=0
/proc/22402/stat : 22402 (gnovelty+2) R 22400 22402 21878 0 -1 4194304 193 0 0 0 0 0 0 0 20 0 1 0 42103791 1042145280 176 1992294400 134512640 135663704 4294956224 18446744073709551615 134525361 0 0 4096 0 0 0 0 17 1 0 0
/proc/22402/statm: 254430 176 112 281 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+0.0111251 s]
/proc/loadavg: 1.03 1.02 1.00 3/64 22402
/proc/meminfo: memFree=1047304/2055920 swapFree=4192956/4192956
[pid=22402] ppid=22400 vsize=1017720 CPUtime=0
/proc/22402/stat : 22402 (gnovelty+2) R 22400 22402 21878 0 -1 4194304 193 0 0 0 0 0 0 0 20 0 1 0 42103791 1042145280 176 1992294400 134512640 135663704 4294956224 18446744073709551615 134525361 0 0 4096 0 0 0 0 17 1 0 0
/proc/22402/statm: 254430 176 112 281 0 254146 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1017720

Child status: 10
Real time (s): 0.054265
CPU time (s): 0.052991
CPU user time (s): 0.051992
CPU system time (s): 0.000999
CPU usage (%): 97.6523
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.051992
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= 2

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node75 at 2009-04-19 13:32:29
IDJOB=1629740
IDBENCH=70651
IDSOLVER=585
FILE ID=node75/1629740-1240140749
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-S658989873-070.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629740-1240140749/watcher-1629740-1240140749 -o /tmp/evaluation-result-1629740-1240140749/solver-1629740-1240140749 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1629740-1240140749.cnf 256173894

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

MD5SUM BENCH= 33b307e970060c9ea54050d6d257eed0
RANDOM SEED=256173894

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:       1047720 kB
Buffers:         63740 kB
Cached:         850588 kB
SwapCached:          0 kB
Active:         243908 kB
Inactive:       684352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1047720 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1412 kB
Writeback:           0 kB
Mapped:          23708 kB
Slab:            65812 kB
Committed_AS:   149304 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 13:32:30