Trace number 1629926

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 0.363943 0.364391

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S817309453-059.cnf
MD5SUM534584fc51d8f0ef0254b8dbc8353cc1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.046992
Satisfiable
(Un)Satisfiability was proved
Number of variables540
Number of clauses2295
Sum of the clauses size6885
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32295
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 = 540, numClauses = 2295
0.00/0.00	c General parameters: seed = 1915926819, 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 
0.29/0.36	c      0   254685         0    254685     60725      0.36
0.29/0.36	s SATISFIABLE
0.29/0.36	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 0
0.29/0.36	c Done in 0.360000 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-1629926-1240142006/watcher-1629926-1240142006 -o /tmp/evaluation-result-1629926-1240142006/solver-1629926-1240142006 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1629926-1240142006.cnf 1915926819 

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: 1.00 1.00 1.00 2/64 27638
/proc/meminfo: memFree=1322048/2055920 swapFree=4192956/4192956
[pid=27638] ppid=27636 vsize=1017724 CPUtime=0
/proc/27638/stat : 27638 (gnovelty+2) R 27636 27638 26455 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 42227708 1042149376 134 1992294400 134512640 135663704 4294956224 18446744073709551615 135286126 0 0 4096 0 0 0 0 17 1 0 0
/proc/27638/statm: 254431 134 96 281 0 254147 0

[startup+0.07449 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 27638
/proc/meminfo: memFree=1322048/2055920 swapFree=4192956/4192956
[pid=27638] ppid=27636 vsize=1017720 CPUtime=0.07
/proc/27638/stat : 27638 (gnovelty+2) R 27636 27638 26455 0 -1 4194304 196 0 0 0 7 0 0 0 18 0 1 0 42227708 1042145280 179 1992294400 134512640 135663704 4294956224 18446744073709551615 134545761 0 0 4096 0 0 0 0 17 1 0 0
/proc/27638/statm: 254430 179 112 281 0 254146 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1017720

[startup+0.101492 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 27638
/proc/meminfo: memFree=1322048/2055920 swapFree=4192956/4192956
[pid=27638] ppid=27636 vsize=1017720 CPUtime=0.09
/proc/27638/stat : 27638 (gnovelty+2) R 27636 27638 26455 0 -1 4194304 196 0 0 0 9 0 0 0 18 0 1 0 42227708 1042145280 179 1992294400 134512640 135663704 4294956224 18446744073709551615 134546772 0 0 4096 0 0 0 0 17 1 0 0
/proc/27638/statm: 254430 179 112 281 0 254146 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1017720

[startup+0.301511 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 27638
/proc/meminfo: memFree=1322048/2055920 swapFree=4192956/4192956
[pid=27638] ppid=27636 vsize=1017720 CPUtime=0.29
/proc/27638/stat : 27638 (gnovelty+2) R 27636 27638 26455 0 -1 4194304 196 0 0 0 29 0 0 0 19 0 1 0 42227708 1042145280 179 1992294400 134512640 135663704 4294956224 18446744073709551615 134544279 0 0 4096 0 0 0 0 17 1 0 0
/proc/27638/statm: 254430 179 112 281 0 254146 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1017720

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

Child status: 10
Real time (s): 0.364391
CPU time (s): 0.363943
CPU user time (s): 0.362944
CPU system time (s): 0.000999
CPU usage (%): 99.8771
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.362944
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= 200
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 0.006998 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-19 13:53:26
IDJOB=1629926
IDBENCH=70713
IDSOLVER=585
FILE ID=node61/1629926-1240142006
PBS_JOBID= 9157898
Free space on /tmp= 66456 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S817309453-059.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629926-1240142006/watcher-1629926-1240142006 -o /tmp/evaluation-result-1629926-1240142006/solver-1629926-1240142006 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1629926-1240142006.cnf 1915926819

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

MD5SUM BENCH= 534584fc51d8f0ef0254b8dbc8353cc1
RANDOM SEED=1915926819

node61.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		: 3000.216
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		: 3000.216
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:       1322528 kB
Buffers:         83716 kB
Cached:         572008 kB
SwapCached:          0 kB
Active:         312960 kB
Inactive:       355480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1322528 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1456 kB
Writeback:           0 kB
Mapped:          22496 kB
Slab:            51076 kB
Committed_AS:   199812 kB
PageTables:       1368 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66456 MiB
End job on node61 at 2009-04-19 13:53:26