Trace number 1528902

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+ 2009-03-22SAT 0.401938 0.402815

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S956671877-054.cnf
MD5SUMfa9334576b7ead7d32e2b64d3b23241f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
Satisfiable
(Un)Satisfiability was proved
Number of variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.15	c +------------------------------+
0.09/0.15	c | gNovelty+, version 1.2       |
0.09/0.15	c +------------------------------+
0.09/0.15	c gnovelty+ -h for help
0.09/0.15	c 
0.09/0.15	finish initINstance()
0.09/0.15	c Problem instance: numAtoms = 520, numClauses = 2210, numLiterals = 6630
0.09/0.15	c General parameters: seed = 1754129143, timeout = 10 secs, targetCost = 0, print solution: no
0.09/0.15	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.09/0.15	c tries = 1
0.09/0.15	c 
0.29/0.38	     0   177408         0    177408     40871      0.23
0.29/0.38	s SATISFIABLE
0.29/0.38	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 0
0.29/0.39	c Done in 0.230000 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-1528902-1238571993/watcher-1528902-1238571993 -o /tmp/evaluation-result-1528902-1238571993/solver-1528902-1238571993 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1528902-1238571993.cnf 1754129143 

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: 1.00 1.00 1.00 3/64 20044
/proc/meminfo: memFree=1599224/2055920 swapFree=4179168/4192956
[pid=20044] ppid=20042 vsize=957772 CPUtime=0
/proc/20044/stat : 20044 (gnovelty+) R 20042 20044 19579 0 -1 4194304 760 0 0 0 0 0 0 0 18 0 1 0 1129861152 980758528 744 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/20044/statm: 239443 749 46 143 0 239298 0

[startup+0.0630049 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 20044
/proc/meminfo: memFree=1599224/2055920 swapFree=4179168/4192956
[pid=20044] ppid=20042 vsize=957772 CPUtime=0.05
/proc/20044/stat : 20044 (gnovelty+) R 20042 20044 19579 0 -1 4194304 9826 0 0 0 1 4 0 0 18 0 1 0 1129861152 980758528 9810 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/20044/statm: 239443 9817 46 143 0 239298 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 957772

[startup+0.102007 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 20044
/proc/meminfo: memFree=1599224/2055920 swapFree=4179168/4192956
[pid=20044] ppid=20042 vsize=958552 CPUtime=0.09
/proc/20044/stat : 20044 (gnovelty+) R 20042 20044 19579 0 -1 4194304 13750 0 0 0 3 6 0 0 18 0 1 0 1129861152 981557248 13733 1992294400 134512640 135098890 4294956208 18446744073709551615 134518515 0 0 4096 0 0 0 0 17 1 0 0
/proc/20044/statm: 239638 13738 49 143 0 239493 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 958552

[startup+0.301026 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 20044
/proc/meminfo: memFree=1599224/2055920 swapFree=4179168/4192956
[pid=20044] ppid=20042 vsize=958552 CPUtime=0.29
/proc/20044/stat : 20044 (gnovelty+) R 20042 20044 19579 0 -1 4194304 19676 0 0 0 20 9 0 0 19 0 1 0 1129861152 981557248 19659 1992294400 134512640 135098890 4294956208 18446744073709551615 134514634 0 0 4096 0 0 0 0 17 1 0 0
/proc/20044/statm: 239638 19659 65 143 0 239493 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 958552

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

[startup+0.401036 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 20044
/proc/meminfo: memFree=1599224/2055920 swapFree=4179168/4192956
[pid=20044] ppid=20042 vsize=0 CPUtime=0.39
/proc/20044/stat : 20044 (gnovelty+) R 20042 20044 19579 0 -1 4194308 19679 0 0 0 29 10 0 0 19 0 1 0 1129861152 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/20044/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 0.402815
CPU time (s): 0.401938
CPU user time (s): 0.291955
CPU system time (s): 0.109983
CPU usage (%): 99.7823
Max. virtual memory (cumulated for all children) (KiB): 958552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.291955
system time used= 0.109983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19679
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 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-01 09:46:33
IDJOB=1528902
IDBENCH=70655
IDSOLVER=536
FILE ID=node61/1528902-1238571993
PBS_JOBID= 9062164
Free space on /tmp= 66344 MiB

SOLVER NAME= gnovelty+ 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S956671877-054.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528902-1238571993/watcher-1528902-1238571993 -o /tmp/evaluation-result-1528902-1238571993/solver-1528902-1238571993 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1528902-1238571993.cnf 1754129143

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

MD5SUM BENCH= fa9334576b7ead7d32e2b64d3b23241f
RANDOM SEED=1754129143

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		: 3000.238
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		: 3000.238
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:       1599640 kB
Buffers:         88144 kB
Cached:         274604 kB
SwapCached:       7920 kB
Active:         199304 kB
Inactive:       173080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1599640 kB
SwapTotal:     4192956 kB
SwapFree:      4179168 kB
Dirty:             696 kB
Writeback:           0 kB
Mapped:          15416 kB
Slab:            69992 kB
Committed_AS:  2748412 kB
PageTables:       1372 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= 66344 MiB
End job on node61 at 2009-04-01 09:46:33