Trace number 1528976

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 0.030994 0.0311579

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S786890012-057.cnf
MD5SUMa1a4d8d82b0d4daf47cfa00c0df86ca5
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 variables560
Number of clauses2380
Sum of the clauses size7140
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32380
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 = 560, numClauses = 2380
0.00/0.00	c General parameters: seed = 905091287, 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 
0.01/0.03	c      0    16461         0     16461      2878      0.02
0.01/0.03	s SATISFIABLE
0.01/0.03	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 -501 502 -503 -504 505 -506 507 508 509 -510 -511 -512 513 514 -515 -516 517 -518 -519 520 -521 -522 523 524 -525 526 -527 528 529 -530 -531 -532 533 534 -535 536 -537 538 -539 -540 -541 -542 543 -544 545 546 547 -548 -549 -550 -551 -552 -553 -554 -555 556 557 -558 559 -560 0
0.01/0.03	c Done in 0.020000 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-1528976-1238578325/watcher-1528976-1238578325 -o /tmp/evaluation-result-1528976-1238578325/solver-1528976-1238578325 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1528976-1238578325.cnf 905091287 

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: 2.49 2.19 1.68 3/64 17826
/proc/meminfo: memFree=1065712/2055920 swapFree=4181692/4192956
[pid=17826] ppid=17824 vsize=1017724 CPUtime=0
/proc/17826/stat : 17826 (gnovelty+2) R 17824 17826 17366 0 -1 4194304 151 0 0 0 0 0 0 0 18 0 1 0 302033853 1042149376 135 1992294400 134512640 135663704 4294956208 18446744073709551615 134549384 0 0 4096 0 0 0 0 17 1 0 0
/proc/17826/statm: 254431 135 96 281 0 254147 0

[startup+0.01616 s]
/proc/loadavg: 2.49 2.19 1.68 3/64 17826
/proc/meminfo: memFree=1065712/2055920 swapFree=4181692/4192956
[pid=17826] ppid=17824 vsize=1017852 CPUtime=0.01
/proc/17826/stat : 17826 (gnovelty+2) R 17824 17826 17366 0 -1 4194304 198 0 0 0 1 0 0 0 18 0 1 0 302033853 1042280448 181 1992294400 134512640 135663704 4294956208 18446744073709551615 134525218 0 0 4096 0 0 0 0 17 1 0 0
/proc/17826/statm: 254463 181 112 281 0 254179 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1017852

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

[startup+0.01616 s]
/proc/loadavg: 2.49 2.19 1.68 3/64 17826
/proc/meminfo: memFree=1065712/2055920 swapFree=4181692/4192956
[pid=17826] ppid=17824 vsize=1017852 CPUtime=0.01
/proc/17826/stat : 17826 (gnovelty+2) R 17824 17826 17366 0 -1 4194304 198 0 0 0 1 0 0 0 18 0 1 0 302033853 1042280448 181 1992294400 134512640 135663704 4294956208 18446744073709551615 134525218 0 0 4096 0 0 0 0 17 1 0 0
/proc/17826/statm: 254463 181 112 281 0 254179 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1017852

Child status: 10
Real time (s): 0.0311579
CPU time (s): 0.030994
CPU user time (s): 0.028995
CPU system time (s): 0.001999
CPU usage (%): 99.4739
Max. virtual memory (cumulated for all children) (KiB): 1017852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.028995
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 202
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 0.004999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node42 at 2009-04-01 11:32:05
IDJOB=1528976
IDBENCH=70679
IDSOLVER=548
FILE ID=node42/1528976-1238578325
PBS_JOBID= 9062185
Free space on /tmp= 66248 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S786890012-057.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528976-1238578325/watcher-1528976-1238578325 -o /tmp/evaluation-result-1528976-1238578325/solver-1528976-1238578325 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1528976-1238578325.cnf 905091287

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

MD5SUM BENCH= a1a4d8d82b0d4daf47cfa00c0df86ca5
RANDOM SEED=905091287

node42.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		: 3000.211
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		: 3000.211
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:       1066128 kB
Buffers:        115244 kB
Cached:         768196 kB
SwapCached:       5184 kB
Active:         195140 kB
Inactive:       696820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1066128 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:            1420 kB
Writeback:           0 kB
Mapped:          14268 kB
Slab:            83840 kB
Committed_AS:  1054116 kB
PageTables:       1388 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= 66248 MiB
End job on node42 at 2009-04-01 11:32:05