Trace number 1783405

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 0.175973 0.176422

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 benchmark0.035994
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 

0.09/0.12	c +------------------------------+
0.09/0.12	c | gNovelty+, version 1.0       |
0.09/0.12	c +------------------------------+
0.09/0.12	c gnovelty+ -h for help
0.09/0.12	c 
0.09/0.16	s SATISFIABLE
0.09/0.16	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
0.09/0.16	c Done in 0.040000 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-1783405-1241731651/watcher-1783405-1241731651 -o /tmp/evaluation-result-1783405-1241731651/solver-1783405-1241731651 -C 5000 -W 6000 -M 1800 HOME/gnovelty+ HOME/instance-1783405-1241731651.cnf 1214768342 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: 0.86 0.97 0.99 3/65 8933
/proc/meminfo: memFree=1991696/2055920 swapFree=4180360/4192956
[pid=8933] ppid=8931 vsize=509152 CPUtime=0
/proc/8933/stat : 8933 (gnovelty+) R 8931 8933 8680 0 -1 4194304 1088 0 0 0 0 0 0 0 20 0 1 0 201195215 521371648 1073 1992294400 134512640 135680988 4294956208 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/8933/statm: 127288 1080 102 285 0 127000 0

[startup+0.0976591 s]
/proc/loadavg: 0.86 0.97 0.99 3/65 8933
/proc/meminfo: memFree=1991696/2055920 swapFree=4180360/4192956
[pid=8933] ppid=8931 vsize=516964 CPUtime=0.09
/proc/8933/stat : 8933 (gnovelty+) R 8931 8933 8680 0 -1 4194304 16093 0 0 0 3 6 0 0 20 0 1 0 201195215 529371136 16077 1992294400 134512640 135680988 4294956208 18446744073709551615 134537968 0 0 4096 0 0 0 0 17 1 0 0
/proc/8933/statm: 129241 16082 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

[startup+0.102657 s]
/proc/loadavg: 0.86 0.97 0.99 3/65 8933
/proc/meminfo: memFree=1991696/2055920 swapFree=4180360/4192956
[pid=8933] ppid=8931 vsize=516964 CPUtime=0.09
/proc/8933/stat : 8933 (gnovelty+) R 8931 8933 8680 0 -1 4194304 16732 0 0 0 3 6 0 0 20 0 1 0 201195215 529371136 16716 1992294400 134512640 135680988 4294956208 18446744073709551615 134537708 0 0 4096 0 0 0 0 17 1 0 0
/proc/8933/statm: 129241 16721 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): 0.176422
CPU time (s): 0.175973
CPU user time (s): 0.083987
CPU system time (s): 0.091986
CPU usage (%): 99.7454
Max. virtual memory (cumulated for all children) (KiB): 516964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.083987
system time used= 0.091986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19741
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 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node76 at 2009-05-07 23:27:31
IDJOB=1783405
IDBENCH=70677
IDSOLVER=636
FILE ID=node76/1783405-1241731651
PBS_JOBID= 9264433
Free space on /tmp= 66344 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-1783405-1241731651/watcher-1783405-1241731651 -o /tmp/evaluation-result-1783405-1241731651/solver-1783405-1241731651 -C 5000 -W 6000 -M 1800  HOME/gnovelty+ HOME/instance-1783405-1241731651.cnf 1214768342 0

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

MD5SUM BENCH= ea276ce6a9a917d7362e239e9cf3e2f4
RANDOM SEED=1214768342

node76.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		: 3000.220
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		: 3000.220
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1992112 kB
Buffers:          9104 kB
Cached:          20164 kB
SwapCached:       6908 kB
Active:          20684 kB
Inactive:        16764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1992112 kB
SwapTotal:     4192956 kB
SwapFree:      4180360 kB
Dirty:            1920 kB
Writeback:           0 kB
Mapped:          13224 kB
Slab:            12236 kB
Committed_AS:   704284 kB
PageTables:       1432 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= 66344 MiB
End job on node76 at 2009-05-07 23:27:31