Trace number 1542884

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 0.470927 0.309947

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S1429776379-099.cnf
MD5SUMea276ce6a9a917d7362e239e9cf3e2f4
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 variables560
Number of clauses2380
Sum of the clauses size7140
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32380
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 
0.26/0.29	s SATISFIABLE
0.26/0.29	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 -541 -542 -543 544 -545 -546 547 548 -549 -550 -551 552 553 -554 555 -556 557 558 559 -560 0
0.26/0.29	c Done in 0.290000 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-1542884-1238577683/watcher-1542884-1238577683 -o /tmp/evaluation-result-1542884-1238577683/solver-1542884-1238577683 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1542884-1238577683.cnf 102240586 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 1.09 3/64 17684
/proc/meminfo: memFree=1065904/2055920 swapFree=4181692/4192956
[pid=17684] ppid=17682 vsize=509152 CPUtime=0
/proc/17684/stat : 17684 (gnovelty+) R 17682 17684 17366 0 -1 4194304 1014 0 0 0 0 0 0 0 18 0 1 0 301969655 521371648 999 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/17684/statm: 127288 1004 102 285 0 127000 0

[startup+0.037879 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 17684
/proc/meminfo: memFree=1065904/2055920 swapFree=4181692/4192956
[pid=17684] ppid=17682 vsize=509152 CPUtime=0.03
/proc/17684/stat : 17684 (gnovelty+) R 17682 17684 17366 0 -1 4194304 7850 0 0 0 0 3 0 0 18 0 1 0 301969655 521371648 7836 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/17684/statm: 127288 7844 102 285 0 127000 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 509152

[startup+0.102866 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 17684
/proc/meminfo: memFree=1065904/2055920 swapFree=4181692/4192956
[pid=17684] ppid=17682 vsize=516964 CPUtime=0.09
/proc/17684/stat : 17684 (gnovelty+) R 17682 17684 17366 0 -1 4194304 16013 0 0 0 3 6 0 0 18 0 1 0 301969655 529371136 15998 1992294400 134512640 135680988 4294956192 18446744073709551615 134537905 0 0 4096 0 0 0 0 17 1 0 0
/proc/17684/statm: 129241 16001 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

[startup+0.302888 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 17684
/proc/meminfo: memFree=1065904/2055920 swapFree=4181692/4192956
[pid=17684] ppid=17682 vsize=0 CPUtime=0.45
/proc/17684/stat : 17684 (gnovelty+) R 17682 17684 17366 0 -1 4195332 19768 0 0 0 33 12 0 0 17 0 1 0 301969655 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/17684/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.45
Current children cumulated vsize (KiB) 0

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

Child status: 10
Real time (s): 0.309947
CPU time (s): 0.470927
CPU user time (s): 0.338948
CPU system time (s): 0.131979
CPU usage (%): 151.938
Max. virtual memory (cumulated for all children) (KiB): 529300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.338948
system time used= 0.131979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19768
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= 61
involuntary context switches= 2

runsolver used 0.001999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node42 at 2009-04-01 11:21:23
IDJOB=1542884
IDBENCH=70677
IDSOLVER=550
FILE ID=node42/1542884-1238577683
PBS_JOBID= 9062185
Free space on /tmp= 66248 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S1429776379-099.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1542884-1238577683/watcher-1542884-1238577683 -o /tmp/evaluation-result-1542884-1238577683/solver-1542884-1238577683 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1542884-1238577683.cnf 102240586 2

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

MD5SUM BENCH= ea276ce6a9a917d7362e239e9cf3e2f4
RANDOM SEED=102240586

node42.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		: 3000.211
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		: 3000.211
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:       1066320 kB
Buffers:        115176 kB
Cached:         768128 kB
SwapCached:       5184 kB
Active:         194952 kB
Inactive:       696884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1066320 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:            1456 kB
Writeback:           0 kB
Mapped:          14268 kB
Slab:            83788 kB
Committed_AS:  1054036 kB
PageTables:       1388 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= 66248 MiB
End job on node42 at 2009-04-01 11:21:23