Trace number 1528900

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-H 2009-03-22SAT 0.326949 0.327602

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S247943532-069.cnf
MD5SUM480eadd67693b734091a7d5840645722
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.113981
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 = 1114677668, 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 
0.29/0.32	s SATISFIABLE
0.29/0.32	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

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-1528900-1238571733/watcher-1528900-1238571733 -o /tmp/evaluation-result-1528900-1238571733/solver-1528900-1238571733 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2-H HOME/instance-1528900-1238571733.cnf 1114677668 

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: 0.92 0.98 0.99 2/64 23565
/proc/meminfo: memFree=1267264/2055920 swapFree=4178264/4192956
[pid=23565] ppid=23563 vsize=412456 CPUtime=0
/proc/23565/stat : 23565 (gnovelty+2-H) R 23563 23565 23249 0 -1 4194304 175 0 0 0 0 0 0 0 18 0 1 0 1129838784 422354944 160 1992294400 134512640 135729416 4294956208 18446744073709551615 135267184 0 0 4096 0 0 0 0 17 1 0 0
/proc/23565/statm: 103114 170 113 297 0 102814 0

[startup+0.0338499 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 23565
/proc/meminfo: memFree=1267264/2055920 swapFree=4178264/4192956
[pid=23565] ppid=23563 vsize=412456 CPUtime=0.03
/proc/23565/stat : 23565 (gnovelty+2-H) R 23563 23565 23249 0 -1 4194304 196 0 0 0 3 0 0 0 18 0 1 0 1129838784 422354944 180 1992294400 134512640 135729416 4294956208 18446744073709551615 134518095 0 0 4096 0 0 0 0 17 1 0 0
/proc/23565/statm: 103114 180 115 297 0 102814 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 412456

[startup+0.102861 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 23565
/proc/meminfo: memFree=1267264/2055920 swapFree=4178264/4192956
[pid=23565] ppid=23563 vsize=412456 CPUtime=0.1
/proc/23565/stat : 23565 (gnovelty+2-H) R 23563 23565 23249 0 -1 4194304 196 0 0 0 10 0 0 0 18 0 1 0 1129838784 422354944 180 1992294400 134512640 135729416 4294956208 18446744073709551615 134517466 0 0 4096 0 0 0 0 17 1 0 0
/proc/23565/statm: 103114 180 115 297 0 102814 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 412456

[startup+0.301892 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 23565
/proc/meminfo: memFree=1267264/2055920 swapFree=4178264/4192956
[pid=23565] ppid=23563 vsize=412456 CPUtime=0.29
/proc/23565/stat : 23565 (gnovelty+2-H) R 23563 23565 23249 0 -1 4194304 196 0 0 0 29 0 0 0 19 0 1 0 1129838784 422354944 180 1992294400 134512640 135729416 4294956208 18446744073709551615 134528169 0 0 4096 0 0 0 0 17 1 0 0
/proc/23565/statm: 103114 180 115 297 0 102814 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 412456

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

Child status: 10
Real time (s): 0.327602
CPU time (s): 0.326949
CPU user time (s): 0.32595
CPU system time (s): 0.000999
CPU usage (%): 99.8007
Max. virtual memory (cumulated for all children) (KiB): 412456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.32595
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= 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= 5

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node26 at 2009-04-01 09:42:13
IDJOB=1528900
IDBENCH=70654
IDSOLVER=547
FILE ID=node26/1528900-1238571733
PBS_JOBID= 9070500
Free space on /tmp= 66264 MiB

SOLVER NAME= gnovelty+2-H 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S247943532-069.cnf
COMMAND LINE= HOME/gnovelty+2-H BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528900-1238571733/watcher-1528900-1238571733 -o /tmp/evaluation-result-1528900-1238571733/solver-1528900-1238571733 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2-H HOME/instance-1528900-1238571733.cnf 1114677668

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

MD5SUM BENCH= 480eadd67693b734091a7d5840645722
RANDOM SEED=1114677668

node26.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		: 3000.261
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	: 5931.00
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		: 3000.261
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:       1267680 kB
Buffers:         94480 kB
Cached:         594864 kB
SwapCached:       8472 kB
Active:         222848 kB
Inactive:       476368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1267680 kB
SwapTotal:     4192956 kB
SwapFree:      4178264 kB
Dirty:            1488 kB
Writeback:           0 kB
Mapped:          15560 kB
Slab:            75048 kB
Committed_AS:  2998168 kB
PageTables:       1372 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= 66260 MiB
End job on node26 at 2009-04-01 09:42:13