Trace number 1534377

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
adaptg2wsat2009 2009-03-23SAT 0.019996 0.0194081

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S602463346-055.cnf
MD5SUMf50ad9abb19635b49e2de66215f8fa56
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2125
Sum of the clauses size6375
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32125
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 528464192
0.00/0.01	c try 1 flip j 7212 walk 5888 seed 391227615
0.00/0.01	c A solution is found
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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0.010 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-1534377-1238570459/watcher-1534377-1238570459 -o /tmp/evaluation-result-1534377-1238570459/solver-1534377-1238570459 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009 HOME/instance-1534377-1238570459.cnf 528464192 

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: 0.92 0.98 0.99 3/68 22901
/proc/meminfo: memFree=1511288/2055920 swapFree=4175244/4192956
[pid=22901] ppid=22899 vsize=415928 CPUtime=0
/proc/22901/stat : 22901 (adaptg2wsat2009) R 22899 22901 22326 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 1129707459 425910272 127 1992294400 134512640 135106963 4294956192 18446744073709551615 134523215 0 0 4096 0 0 0 0 17 1 0 0
/proc/22901/statm: 103982 127 50 145 0 102858 0

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

Child status: 10
Real time (s): 0.0194081
CPU time (s): 0.019996
CPU user time (s): 0.017997
CPU system time (s): 0.001999
CPU usage (%): 103.029
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.017997
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 219
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 0.006998 second system time

The end

Launcher Data 

Begin job on node60 at 2009-04-01 09:20:59
IDJOB=1534377
IDBENCH=70649
IDSOLVER=542
FILE ID=node60/1534377-1238570459
PBS_JOBID= 9062158
Free space on /tmp= 66548 MiB

SOLVER NAME= adaptg2wsat2009 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S602463346-055.cnf
COMMAND LINE= HOME/adaptg2wsat2009 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534377-1238570459/watcher-1534377-1238570459 -o /tmp/evaluation-result-1534377-1238570459/solver-1534377-1238570459 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009 HOME/instance-1534377-1238570459.cnf 528464192

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

MD5SUM BENCH= f50ad9abb19635b49e2de66215f8fa56
RANDOM SEED=528464192

node60.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		: 3000.202
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		: 3000.202
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:       1511768 kB
Buffers:         95880 kB
Cached:         355276 kB
SwapCached:      11040 kB
Active:         219980 kB
Inactive:       244332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1511768 kB
SwapTotal:     4192956 kB
SwapFree:      4175244 kB
Dirty:            4928 kB
Writeback:           0 kB
Mapped:          18440 kB
Slab:            65408 kB
Committed_AS:  3412772 kB
PageTables:       1712 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= 66544 MiB
End job on node60 at 2009-04-01 09:20:59