Trace number 1534438

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 0.231964 0.232178

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S2087271472-092.cnf
MD5SUM0b959375755b7be8d72e0ee6a403232e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.085986
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 

0.20/0.23	c 0 clauses are redundant and removed
0.20/0.23	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.20/0.23	c 0 vars are fixed and 0 clauses are removed after lookahead
0.20/0.23	c initial seed is 451016619
0.20/0.23	c try 1 flip j 214168 walk 180908 seed 1722750973
0.20/0.23	c A solution is found
0.20/0.23	s SATISFIABLE
0.20/0.23	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 
0.20/0.23	v 0 
0.20/0.23	c Done (mycputime is 0.230 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-1534438-1238573432/watcher-1534438-1238573432 -o /tmp/evaluation-result-1534438-1238573432/solver-1534438-1238573432 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534438-1238573432.cnf 451016619 

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: 0.93 0.99 1.19 2/64 3838
/proc/meminfo: memFree=1063288/2055920 swapFree=4178100/4192956
[pid=3838] ppid=3836 vsize=415928 CPUtime=0
/proc/3838/stat : 3838 (adaptg2wsat2009) R 3836 3838 3585 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 1130009104 425910272 128 1992294400 134512640 135107411 4294956208 18446744073709551615 134523312 0 0 4096 0 0 0 0 17 1 0 0
/proc/3838/statm: 103982 128 49 145 0 102858 0

[startup+0.0431521 s]
/proc/loadavg: 0.93 0.99 1.19 2/64 3838
/proc/meminfo: memFree=1063288/2055920 swapFree=4178100/4192956
[pid=3838] ppid=3836 vsize=416064 CPUtime=0.04
/proc/3838/stat : 3838 (adaptg2wsat2009) R 3836 3838 3585 0 -1 4194304 210 0 0 0 4 0 0 0 18 0 1 0 1130009104 426049536 193 1992294400 134512640 135107411 4294956208 18446744073709551615 134531817 0 0 4096 0 0 0 0 17 1 0 0
/proc/3838/statm: 104016 193 59 145 0 102892 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 416064

[startup+0.101156 s]
/proc/loadavg: 0.93 0.99 1.19 2/64 3838
/proc/meminfo: memFree=1063288/2055920 swapFree=4178100/4192956
[pid=3838] ppid=3836 vsize=416064 CPUtime=0.1
/proc/3838/stat : 3838 (adaptg2wsat2009) R 3836 3838 3585 0 -1 4194304 210 0 0 0 10 0 0 0 18 0 1 0 1130009104 426049536 193 1992294400 134512640 135107411 4294956208 18446744073709551615 134547619 0 0 4096 0 0 0 0 17 1 0 0
/proc/3838/statm: 104016 193 59 145 0 102892 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 416064

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

[startup+0.201166 s]
/proc/loadavg: 0.93 0.99 1.19 2/64 3838
/proc/meminfo: memFree=1063288/2055920 swapFree=4178100/4192956
[pid=3838] ppid=3836 vsize=416064 CPUtime=0.2
/proc/3838/stat : 3838 (adaptg2wsat2009) R 3836 3838 3585 0 -1 4194304 210 0 0 0 20 0 0 0 18 0 1 0 1130009104 426049536 193 1992294400 134512640 135107411 4294956208 18446744073709551615 134531498 0 0 4096 0 0 0 0 17 1 0 0
/proc/3838/statm: 104016 193 59 145 0 102892 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 416064

Child status: 10
Real time (s): 0.232178
CPU time (s): 0.231964
CPU user time (s): 0.231964
CPU system time (s): 0
CPU usage (%): 99.9078
Max. virtual memory (cumulated for all children) (KiB): 416064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.231964
system time used= 0
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= 2

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node18 at 2009-04-01 10:10:32
IDJOB=1534438
IDBENCH=70661
IDSOLVER=543
FILE ID=node18/1534438-1238573432
PBS_JOBID= 9070526
Free space on /tmp= 66212 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S2087271472-092.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534438-1238573432/watcher-1534438-1238573432 -o /tmp/evaluation-result-1534438-1238573432/solver-1534438-1238573432 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534438-1238573432.cnf 451016619

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

MD5SUM BENCH= 0b959375755b7be8d72e0ee6a403232e
RANDOM SEED=451016619

node18.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		: 3000.214
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		: 3000.214
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:       1063704 kB
Buffers:        109816 kB
Cached:         775712 kB
SwapCached:       8808 kB
Active:         208532 kB
Inactive:       687552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1063704 kB
SwapTotal:     4192956 kB
SwapFree:      4178100 kB
Dirty:            5132 kB
Writeback:           0 kB
Mapped:          16280 kB
Slab:            82200 kB
Committed_AS:  3126648 kB
PageTables:       1376 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= 66208 MiB
End job on node18 at 2009-04-01 10:10:32