Trace number 1528985

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 0.066989 0.067929

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S844931093-069.cnf
MD5SUM589832b31b8f1cb4096063d76e2202cf
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.066989
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 = 94471907, 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 
0.05/0.06	c      0    47716         0     47716     12106      0.06
0.05/0.06	s SATISFIABLE
0.05/0.06	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
0.05/0.06	c Done in 0.060000 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-1528985-1238579293/watcher-1528985-1238579293 -o /tmp/evaluation-result-1528985-1238579293/solver-1528985-1238579293 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1528985-1238579293.cnf 94471907 

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: 0.93 0.98 0.99 3/73 22801
/proc/meminfo: memFree=1513520/2055920 swapFree=4176824/4192956
[pid=22801] ppid=22799 vsize=1017852 CPUtime=0
/proc/22801/stat : 22801 (gnovelty+2) R 22799 22801 22341 0 -1 4194304 198 0 0 0 0 0 0 0 20 0 1 0 914317906 1042280448 181 1992294400 134512640 135663704 4294956208 18446744073709551615 134546465 0 0 4096 0 0 0 0 17 1 0 0
/proc/22801/statm: 254463 181 112 281 0 254179 0

[startup+0.0528951 s]
/proc/loadavg: 0.93 0.98 0.99 3/73 22801
/proc/meminfo: memFree=1513520/2055920 swapFree=4176824/4192956
[pid=22801] ppid=22799 vsize=1017852 CPUtime=0.05
/proc/22801/stat : 22801 (gnovelty+2) R 22799 22801 22341 0 -1 4194304 198 0 0 0 5 0 0 0 20 0 1 0 914317906 1042280448 181 1992294400 134512640 135663704 4294956208 18446744073709551615 134545572 0 0 4096 0 0 0 0 17 1 0 0
/proc/22801/statm: 254463 181 112 281 0 254179 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1017852

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

[startup+0.0528951 s]
/proc/loadavg: 0.93 0.98 0.99 3/73 22801
/proc/meminfo: memFree=1513520/2055920 swapFree=4176824/4192956
[pid=22801] ppid=22799 vsize=1017852 CPUtime=0.05
/proc/22801/stat : 22801 (gnovelty+2) R 22799 22801 22341 0 -1 4194304 198 0 0 0 5 0 0 0 20 0 1 0 914317906 1042280448 181 1992294400 134512640 135663704 4294956208 18446744073709551615 134545572 0 0 4096 0 0 0 0 17 1 0 0
/proc/22801/statm: 254463 181 112 281 0 254179 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1017852

Child status: 10
Real time (s): 0.067929
CPU time (s): 0.066989
CPU user time (s): 0.066989
CPU system time (s): 0
CPU usage (%): 98.6163
Max. virtual memory (cumulated for all children) (KiB): 1017852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.066989
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= 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 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node82 at 2009-04-01 11:48:13
IDJOB=1528985
IDBENCH=70682
IDSOLVER=548
FILE ID=node82/1528985-1238579293
PBS_JOBID= 9062197
Free space on /tmp= 61636 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S844931093-069.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528985-1238579293/watcher-1528985-1238579293 -o /tmp/evaluation-result-1528985-1238579293/solver-1528985-1238579293 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1528985-1238579293.cnf 94471907

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

MD5SUM BENCH= 589832b31b8f1cb4096063d76e2202cf
RANDOM SEED=94471907

node82.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:       1514000 kB
Buffers:         90984 kB
Cached:         359188 kB
SwapCached:       7332 kB
Active:         338844 kB
Inactive:       120776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1514000 kB
SwapTotal:     4192956 kB
SwapFree:      4176824 kB
Dirty:            1548 kB
Writeback:           0 kB
Mapped:          15008 kB
Slab:            67400 kB
Committed_AS:  2513224 kB
PageTables:       1996 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= 61636 MiB
End job on node82 at 2009-04-01 11:48:13