Trace number 1534433

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 0.014997 0.0157729

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
MD5SUM4cc7ee2f20081e6ebd36addd568f2c4e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
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 

0.00/0.01	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 347210258
0.00/0.01	c try 1 flip j 3290 walk 2505 seed 200247967
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 -501 502 503 -504 -505 -506 -507 508 509 510 511 512 -513 -514 -515 -516 517 518 519 -520 
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-1534433-1238573208/watcher-1534433-1238573208 -o /tmp/evaluation-result-1534433-1238573208/solver-1534433-1238573208 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534433-1238573208.cnf 347210258 

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 3/64 26123
/proc/meminfo: memFree=1483224/2055920 swapFree=4178400/4192956
[pid=26123] ppid=26121 vsize=415928 CPUtime=0
/proc/26123/stat : 26123 (adaptg2wsat2009) R 26121 26123 25693 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 1129987150 425910272 128 1992294400 134512640 135107411 4294956192 18446744073709551615 134523331 0 0 4096 0 0 0 0 17 1 0 0
/proc/26123/statm: 103982 128 49 145 0 102858 0

[startup+0.00810311 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26123
/proc/meminfo: memFree=1483224/2055920 swapFree=4178400/4192956
[pid=26123] ppid=26121 vsize=415932 CPUtime=0
/proc/26123/stat : 26123 (adaptg2wsat2009) R 26121 26123 25693 0 -1 4194304 159 0 0 0 0 0 0 0 18 0 1 0 1129987150 425914368 142 1992294400 134512640 135107411 4294956192 18446744073709551615 134522079 0 0 4096 0 0 0 0 17 1 0 0
/proc/26123/statm: 103983 142 57 145 0 102859 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 415932

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

[startup+0.00810311 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26123
/proc/meminfo: memFree=1483224/2055920 swapFree=4178400/4192956
[pid=26123] ppid=26121 vsize=415932 CPUtime=0
/proc/26123/stat : 26123 (adaptg2wsat2009) R 26121 26123 25693 0 -1 4194304 159 0 0 0 0 0 0 0 18 0 1 0 1129987150 425914368 142 1992294400 134512640 135107411 4294956192 18446744073709551615 134522079 0 0 4096 0 0 0 0 17 1 0 0
/proc/26123/statm: 103983 142 57 145 0 102859 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 415932

Child status: 10
Real time (s): 0.0157729
CPU time (s): 0.014997
CPU user time (s): 0.014997
CPU system time (s): 0
CPU usage (%): 95.0807
Max. virtual memory (cumulated for all children) (KiB): 415932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 222
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 0.005999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node9 at 2009-04-01 10:06:48
IDJOB=1534433
IDBENCH=70660
IDSOLVER=543
FILE ID=node9/1534433-1238573208
PBS_JOBID= 9070517
Free space on /tmp= 66420 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1161147107-031.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534433-1238573208/watcher-1534433-1238573208 -o /tmp/evaluation-result-1534433-1238573208/solver-1534433-1238573208 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534433-1238573208.cnf 347210258

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

MD5SUM BENCH= 4cc7ee2f20081e6ebd36addd568f2c4e
RANDOM SEED=347210258

node9.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		: 3000.268
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		: 3000.268
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:       1483640 kB
Buffers:        103740 kB
Cached:         366228 kB
SwapCached:       8344 kB
Active:         214792 kB
Inactive:       265140 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1483640 kB
SwapTotal:     4192956 kB
SwapFree:      4178400 kB
Dirty:            4608 kB
Writeback:           0 kB
Mapped:          15592 kB
Slab:            78380 kB
Committed_AS:  2994164 kB
PageTables:       1392 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= 66416 MiB
End job on node9 at 2009-04-01 10:06:48