Trace number 1534718

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 0.025995 0.024534

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1002348653-090.cnf
MD5SUMc369517cece9ac5de13f6444259c5dd0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011998
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c 0 clauses are redundant and removed
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.02	c initial seed is 298674596
0.00/0.02	c try 1 flip j 14285 walk 11829 seed 101810105
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 
0.00/0.02	v 0 
0.00/0.02	c Done (mycputime is 0.020 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-1534718-1238590194/watcher-1534718-1238590194 -o /tmp/evaluation-result-1534718-1238590194/solver-1534718-1238590194 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534718-1238590194.cnf 298674596 

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: 1.83 1.82 1.44 3/64 16944
/proc/meminfo: memFree=1621816/2055920 swapFree=4176304/4192956
[pid=16944] ppid=16942 vsize=415928 CPUtime=0
/proc/16944/stat : 16944 (adaptg2wsat2009) R 16942 16944 15983 0 -1 4194304 142 0 0 0 0 0 0 0 18 0 1 0 1131681952 425910272 125 1992294400 134512640 135107411 4294956192 18446744073709551615 134523363 0 0 4096 0 0 0 0 17 1 0 0
/proc/16944/statm: 103982 125 49 145 0 102858 0

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

Child status: 10
Real time (s): 0.024534
CPU time (s): 0.025995
CPU user time (s): 0.022996
CPU system time (s): 0.002999
CPU usage (%): 105.955
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.022996
system time used= 0.002999
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 0.001999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node53 at 2009-04-01 14:49:54
IDJOB=1534718
IDBENCH=70717
IDSOLVER=543
FILE ID=node53/1534718-1238590194
PBS_JOBID= 9062227
Free space on /tmp= 66040 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1002348653-090.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534718-1238590194/watcher-1534718-1238590194 -o /tmp/evaluation-result-1534718-1238590194/solver-1534718-1238590194 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534718-1238590194.cnf 298674596

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

MD5SUM BENCH= c369517cece9ac5de13f6444259c5dd0
RANDOM SEED=298674596

node53.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		: 3000.264
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		: 3000.264
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:       1622232 kB
Buffers:         87460 kB
Cached:         252132 kB
SwapCached:      10540 kB
Active:         202240 kB
Inactive:       149412 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1622232 kB
SwapTotal:     4192956 kB
SwapFree:      4176304 kB
Dirty:            4604 kB
Writeback:           0 kB
Mapped:          17796 kB
Slab:            68032 kB
Committed_AS:  2663872 kB
PageTables:       1384 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= 66036 MiB
End job on node53 at 2009-04-01 14:49:54