Trace number 1528916

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 0.027995 0.0286129

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S621134782-041.cnf
MD5SUM09a6dc57cba44ea6f55eca37108c958d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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 

0.00/0.00	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 = 520, numClauses = 2210
0.00/0.00	c General parameters: seed = 232083063, 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 
0.01/0.02	c      0    16745         0     16745      4838      0.02
0.01/0.02	s SATISFIABLE
0.01/0.02	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
0.01/0.02	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-1528916-1238572943/watcher-1528916-1238572943 -o /tmp/evaluation-result-1528916-1238572943/solver-1528916-1238572943 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1528916-1238572943.cnf 232083063 

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: 0.96 1.01 1.00 3/64 23719
/proc/meminfo: memFree=1560728/2055920 swapFree=4178472/4192956
[pid=23719] ppid=23717 vsize=1017720 CPUtime=0
/proc/23719/stat : 23719 (gnovelty+2) R 23717 23719 23321 0 -1 4194304 157 0 0 0 0 0 0 0 18 0 1 0 1129961272 1042145280 140 1992294400 134512640 135663704 4294956208 18446744073709551615 135101030 0 0 4096 0 0 0 0 17 1 0 0
/proc/23719/statm: 254430 143 96 281 0 254146 0

[startup+0.0181581 s]
/proc/loadavg: 0.96 1.01 1.00 3/64 23719
/proc/meminfo: memFree=1560728/2055920 swapFree=4178472/4192956
[pid=23719] ppid=23717 vsize=1017720 CPUtime=0.01
/proc/23719/stat : 23719 (gnovelty+2) R 23717 23719 23321 0 -1 4194304 195 0 0 0 1 0 0 0 18 0 1 0 1129961272 1042145280 178 1992294400 134512640 135663704 4294956208 18446744073709551615 134525237 0 0 4096 0 0 0 0 17 1 0 0
/proc/23719/statm: 254430 178 112 281 0 254146 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1017720

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

[startup+0.0181581 s]
/proc/loadavg: 0.96 1.01 1.00 3/64 23719
/proc/meminfo: memFree=1560728/2055920 swapFree=4178472/4192956
[pid=23719] ppid=23717 vsize=1017720 CPUtime=0.01
/proc/23719/stat : 23719 (gnovelty+2) R 23717 23719 23321 0 -1 4194304 195 0 0 0 1 0 0 0 18 0 1 0 1129961272 1042145280 178 1992294400 134512640 135663704 4294956208 18446744073709551615 134525237 0 0 4096 0 0 0 0 17 1 0 0
/proc/23719/statm: 254430 178 112 281 0 254146 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1017720

Child status: 10
Real time (s): 0.0286129
CPU time (s): 0.027995
CPU user time (s): 0.027995
CPU system time (s): 0
CPU usage (%): 97.8405
Max. virtual memory (cumulated for all children) (KiB): 1017720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.027995
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= 199
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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node1 at 2009-04-01 10:02:23
IDJOB=1528916
IDBENCH=70659
IDSOLVER=548
FILE ID=node1/1528916-1238572943
PBS_JOBID= 9070525
Free space on /tmp= 66132 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S621134782-041.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528916-1238572943/watcher-1528916-1238572943 -o /tmp/evaluation-result-1528916-1238572943/solver-1528916-1238572943 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1528916-1238572943.cnf 232083063

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

MD5SUM BENCH= 09a6dc57cba44ea6f55eca37108c958d
RANDOM SEED=232083063

node1.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		: 3000.229
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		: 3000.229
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:       1561208 kB
Buffers:         91888 kB
Cached:         303516 kB
SwapCached:       8380 kB
Active:         199868 kB
Inactive:       205504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1561208 kB
SwapTotal:     4192956 kB
SwapFree:      4178472 kB
Dirty:            1420 kB
Writeback:           0 kB
Mapped:          15760 kB
Slab:            75348 kB
Committed_AS:  3034564 kB
PageTables:       1440 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= 66132 MiB
End job on node1 at 2009-04-01 10:02:23