Trace number 1545996

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
SAT07 reference solver: adaptg2wsat+ 2007-02-08SAT 0.066988 0.0664449

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S956671877-054.cnf
MD5SUMfa9334576b7ead7d32e2b64d3b23241f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
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 

0.03/0.06	c try 1 flip j 59188
0.03/0.06	c A solution is found
0.03/0.06	s SATISFIABLE
0.03/0.06	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 
0.03/0.06	v 0 
0.03/0.06	c Done (mycputime is 0.000 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-1545996-1238675710/watcher-1545996-1238675710 -o /tmp/evaluation-result-1545996-1238675710/solver-1545996-1238675710 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat+ HOME/instance-1545996-1238675710.cnf 

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 3/65 11011
/proc/meminfo: memFree=1178792/2055920 swapFree=4176856/4192956
[pid=11011] ppid=11009 vsize=215152 CPUtime=0
/proc/11011/stat : 11011 (adaptg2wsat+) R 11009 11011 10518 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1026944701 220315648 111 1992294400 134512640 134930140 4294956240 18446744073709551615 134523530 0 0 4096 0 0 0 0 17 0 0 0
/proc/11011/statm: 53788 111 38 101 0 53294 0

[startup+0.0322541 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 11011
/proc/meminfo: memFree=1178792/2055920 swapFree=4176856/4192956
[pid=11011] ppid=11009 vsize=216704 CPUtime=0.03
/proc/11011/stat : 11011 (adaptg2wsat+) R 11009 11011 10518 0 -1 4194304 182 0 0 0 3 0 0 0 18 0 1 0 1026944701 221904896 163 1992294400 134512640 134930140 4294956240 18446744073709551615 134545670 0 0 4096 0 0 0 0 17 0 0 0
/proc/11011/statm: 54176 163 41 101 0 53682 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 216704

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

[startup+0.0322541 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 11011
/proc/meminfo: memFree=1178792/2055920 swapFree=4176856/4192956
[pid=11011] ppid=11009 vsize=216704 CPUtime=0.03
/proc/11011/stat : 11011 (adaptg2wsat+) R 11009 11011 10518 0 -1 4194304 182 0 0 0 3 0 0 0 18 0 1 0 1026944701 221904896 163 1992294400 134512640 134930140 4294956240 18446744073709551615 134545670 0 0 4096 0 0 0 0 17 0 0 0
/proc/11011/statm: 54176 163 41 101 0 53682 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 216704

Child status: 10
Real time (s): 0.0664449
CPU time (s): 0.066988
CPU user time (s): 0.065989
CPU system time (s): 0.000999
CPU usage (%): 100.817
Max. virtual memory (cumulated for all children) (KiB): 216704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.065989
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= 194
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 0.003999 second system time

The end

Launcher Data 

Begin job on node8 at 2009-04-02 14:35:10
IDJOB=1545996
IDBENCH=70655
IDSOLVER=562
FILE ID=node8/1545996-1238675710
PBS_JOBID= 9075397
Free space on /tmp= 64248 MiB

SOLVER NAME= SAT07 reference solver: adaptg2wsat+ 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S956671877-054.cnf
COMMAND LINE= HOME/adaptg2wsat+ BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1545996-1238675710/watcher-1545996-1238675710 -o /tmp/evaluation-result-1545996-1238675710/solver-1545996-1238675710 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat+ HOME/instance-1545996-1238675710.cnf            

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

MD5SUM BENCH= fa9334576b7ead7d32e2b64d3b23241f
RANDOM SEED=95190507

node8.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		: 3000.232
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		: 3000.232
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:       1179336 kB
Buffers:        108660 kB
Cached:         660124 kB
SwapCached:       9204 kB
Active:         220012 kB
Inactive:       559404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1179336 kB
SwapTotal:     4192956 kB
SwapFree:      4176856 kB
Dirty:            6372 kB
Writeback:           0 kB
Mapped:          16376 kB
Slab:            82976 kB
Committed_AS:  2752768 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 64244 MiB
End job on node8 at 2009-04-02 14:35:10