Trace number 1629757

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 0.021995 0.0211539

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1977519792-030.cnf
MD5SUMe6458c1749be20cdbcded67df8cce1cf
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021995
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 

0.01/0.02	c 0 clauses are redundant and removed
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.01/0.02	c initial seed is 519081018
0.01/0.02	c try 1 flip j 8119 walk 6472 seed 111834445
0.01/0.02	c A solution is found
0.01/0.02	s SATISFIABLE
0.01/0.02	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 -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 
0.01/0.02	v 0 
0.01/0.02	c Done (mycputime is 0.020 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-1629757-1240141022/watcher-1629757-1240141022 -o /tmp/evaluation-result-1629757-1240141022/solver-1629757-1240141022 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1629757-1240141022.cnf 519081018 

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
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 3/64 26492
/proc/meminfo: memFree=1321736/2055920 swapFree=4192956/4192956
[pid=26492] ppid=26490 vsize=415928 CPUtime=0
/proc/26492/stat : 26492 (adaptg2wsat2009) R 26490 26492 26455 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 42129352 425910272 128 1992294400 134512640 135107411 4294956208 18446744073709551615 134523572 0 0 4096 0 0 0 0 17 1 0 0
/proc/26492/statm: 103982 128 49 145 0 102858 0

[startup+0.0152839 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26492
/proc/meminfo: memFree=1321736/2055920 swapFree=4192956/4192956
[pid=26492] ppid=26490 vsize=416064 CPUtime=0.01
/proc/26492/stat : 26492 (adaptg2wsat2009) R 26490 26492 26455 0 -1 4194304 210 0 0 0 1 0 0 0 18 0 1 0 42129352 426049536 193 1992294400 134512640 135107411 4294956208 18446744073709551615 134532135 0 0 4096 0 0 0 0 17 1 0 0
/proc/26492/statm: 104016 193 59 145 0 102892 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 416064

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

[startup+0.0152839 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26492
/proc/meminfo: memFree=1321736/2055920 swapFree=4192956/4192956
[pid=26492] ppid=26490 vsize=416064 CPUtime=0.01
/proc/26492/stat : 26492 (adaptg2wsat2009) R 26490 26492 26455 0 -1 4194304 210 0 0 0 1 0 0 0 18 0 1 0 42129352 426049536 193 1992294400 134512640 135107411 4294956208 18446744073709551615 134532135 0 0 4096 0 0 0 0 17 1 0 0
/proc/26492/statm: 104016 193 59 145 0 102892 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 416064

Child status: 10
Real time (s): 0.0211539
CPU time (s): 0.021995
CPU user time (s): 0.020996
CPU system time (s): 0.000999
CPU usage (%): 103.976
Max. virtual memory (cumulated for all children) (KiB): 416064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.020996
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= 223
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 0.004999 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-19 13:37:02
IDJOB=1629757
IDBENCH=70657
IDSOLVER=584
FILE ID=node61/1629757-1240141022
PBS_JOBID= 9157898
Free space on /tmp= 66456 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1977519792-030.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629757-1240141022/watcher-1629757-1240141022 -o /tmp/evaluation-result-1629757-1240141022/solver-1629757-1240141022 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1629757-1240141022.cnf 519081018

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

MD5SUM BENCH= e6458c1749be20cdbcded67df8cce1cf
RANDOM SEED=519081018

node61.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		: 3000.216
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		: 3000.216
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:       1322152 kB
Buffers:         82280 kB
Cached:         574260 kB
SwapCached:          0 kB
Active:         311044 kB
Inactive:       358208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1322152 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4624 kB
Writeback:           0 kB
Mapped:          22408 kB
Slab:            50584 kB
Committed_AS:   191036 kB
PageTables:       1368 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66452 MiB
End job on node61 at 2009-04-19 13:37:02