Trace number 1543072

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+-V.2-T 2009-03-22SAT 0.027995 0.01741

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S1916548023-003.cnf
MD5SUM11db2aaf72f0cb9c260a5127c4f6b388
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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 
0.00/0.01	s SATISFIABLE
0.00/0.01	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

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-1543072-1238586772/watcher-1543072-1238586772 -o /tmp/evaluation-result-1543072-1238586772/solver-1543072-1238586772 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1543072-1238586772.cnf 587928664 2 

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 10735
/proc/meminfo: memFree=1292920/2055920 swapFree=4175692/4192956
[pid=10735] ppid=10733 vsize=60760 CPUtime=0
/proc/10735/stat : 10735 (gnovelty+) R 10733 10735 10579 0 -1 4194304 164 0 0 0 0 0 0 0 18 0 1 0 1131342436 62218240 148 1992294400 134512640 135728688 4294956192 18446744073709551615 135136966 0 0 4096 0 0 0 0 17 1 0 0
/proc/10735/statm: 15190 148 100 296 0 14891 0

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

Child status: 10
Real time (s): 0.01741
CPU time (s): 0.027995
CPU user time (s): 0.021996
CPU system time (s): 0.005999
CPU usage (%): 160.798
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.021996
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 213
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= 4
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node30 at 2009-04-01 13:52:52
IDJOB=1543072
IDBENCH=70708
IDSOLVER=552
FILE ID=node30/1543072-1238586772
PBS_JOBID= 9062235
Free space on /tmp= 66360 MiB

SOLVER NAME= gNovelty+-V.2-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S1916548023-003.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1543072-1238586772/watcher-1543072-1238586772 -o /tmp/evaluation-result-1543072-1238586772/solver-1543072-1238586772 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1543072-1238586772.cnf 587928664 2

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= 11db2aaf72f0cb9c260a5127c4f6b388
RANDOM SEED=587928664

node30.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		: 3000.260
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		: 3000.260
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:       1293336 kB
Buffers:         95232 kB
Cached:         568304 kB
SwapCached:      11092 kB
Active:         225240 kB
Inactive:       451352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1293336 kB
SwapTotal:     4192956 kB
SwapFree:      4175692 kB
Dirty:            1496 kB
Writeback:           0 kB
Mapped:          18728 kB
Slab:            72068 kB
Committed_AS:  3252036 kB
PageTables:       1368 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= 66356 MiB
End job on node30 at 2009-04-01 13:52:52