Trace number 1783388

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+-T 2009-03-22SAT 0.156975 0.156271

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
MD5SUM4cc7ee2f20081e6ebd36addd568f2c4e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
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 

0.09/0.13	c +------------------------------+
0.09/0.13	c | gNovelty+, version 1.0       |
0.09/0.13	c +------------------------------+
0.09/0.13	c gnovelty+ -h for help
0.09/0.13	c 
0.09/0.14	s SATISFIABLE
0.09/0.14	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
0.09/0.14	c Done in 0.010000 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-1783388-1241731649/watcher-1783388-1241731649 -o /tmp/evaluation-result-1783388-1241731649/solver-1783388-1241731649 -C 5000 -W 6000 -M 1800 HOME/gnovelty+ HOME/instance-1783388-1241731649.cnf 158748540 0 

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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.93 0.98 0.96 2/64 29546
/proc/meminfo: memFree=1786264/2055920 swapFree=4181940/4192956
[pid=29546] ppid=29544 vsize=509152 CPUtime=0
/proc/29546/stat : 29546 (gnovelty+) R 29544 29546 29482 0 -1 4194304 998 0 0 0 0 0 0 0 18 0 1 0 201192140 521371648 983 1992294400 134512640 135680988 4294956208 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/29546/statm: 127288 991 102 285 0 127000 0

[startup+0.0643531 s]
/proc/loadavg: 0.93 0.98 0.96 2/64 29546
/proc/meminfo: memFree=1786264/2055920 swapFree=4181940/4192956
[pid=29546] ppid=29544 vsize=516964 CPUtime=0.05
/proc/29546/stat : 29546 (gnovelty+) R 29544 29546 29482 0 -1 4194304 11380 0 0 0 1 4 0 0 18 0 1 0 201192140 529371136 11364 1992294400 134512640 135680988 4294956208 18446744073709551615 134537779 0 0 4096 0 0 0 0 17 1 0 0
/proc/29546/statm: 129241 11369 102 285 0 128953 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 516964

[startup+0.102355 s]
/proc/loadavg: 0.93 0.98 0.96 2/64 29546
/proc/meminfo: memFree=1786264/2055920 swapFree=4181940/4192956
[pid=29546] ppid=29544 vsize=516964 CPUtime=0.09
/proc/29546/stat : 29546 (gnovelty+) R 29544 29546 29482 0 -1 4194304 15984 0 0 0 3 6 0 0 18 0 1 0 201192140 529371136 15968 1992294400 134512640 135680988 4294956208 18446744073709551615 134537905 0 0 4096 0 0 0 0 17 1 0 0
/proc/29546/statm: 129241 15972 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

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

Child status: 10
Real time (s): 0.156271
CPU time (s): 0.156975
CPU user time (s): 0.05999
CPU system time (s): 0.096985
CPU usage (%): 100.451
Max. virtual memory (cumulated for all children) (KiB): 516964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.05999
system time used= 0.096985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19738
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 0.005999 second system time

The end

Launcher Data 

Begin job on node58 at 2009-05-07 23:27:29
IDJOB=1783388
IDBENCH=70660
IDSOLVER=636
FILE ID=node58/1783388-1241731649
PBS_JOBID= 9264438
Free space on /tmp= 66136 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1783388-1241731649/watcher-1783388-1241731649 -o /tmp/evaluation-result-1783388-1241731649/solver-1783388-1241731649 -C 5000 -W 6000 -M 1800  HOME/gnovelty+ HOME/instance-1783388-1241731649.cnf 158748540 0

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

MD5SUM BENCH= 4cc7ee2f20081e6ebd36addd568f2c4e
RANDOM SEED=158748540

node58.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		: 3000.233
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		: 3000.233
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:       1786680 kB
Buffers:         13288 kB
Cached:         192780 kB
SwapCached:       4936 kB
Active:          43924 kB
Inactive:       170548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1786680 kB
SwapTotal:     4192956 kB
SwapFree:      4181940 kB
Dirty:            1724 kB
Writeback:           0 kB
Mapped:          14608 kB
Slab:            40780 kB
Committed_AS:   668432 kB
PageTables:       1356 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= 66136 MiB
End job on node58 at 2009-05-07 23:27:29