Trace number 1629736

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 0.299953 0.299939

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S1045096471-025.cnf
MD5SUM855b59e9a0f8a08a40646aec3f122ba2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.072988
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 

0.19/0.29	c 0 clauses are redundant and removed
0.19/0.29	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.19/0.29	c 0 vars are fixed and 0 clauses are removed after lookahead
0.19/0.29	c initial seed is 1755538188
0.19/0.29	c try 1 flip j 277020 walk 230878 seed 4654231
0.19/0.29	c A solution is found
0.19/0.29	s SATISFIABLE
0.19/0.29	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 
0.19/0.29	v 0 
0.19/0.29	c Done (mycputime is 0.290 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-1629736-1240140739/watcher-1629736-1240140739 -o /tmp/evaluation-result-1629736-1240140739/solver-1629736-1240140739 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1629736-1240140739.cnf 1755538188 

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 25601
/proc/meminfo: memFree=854904/2055920 swapFree=4192956/4192956
[pid=25601] ppid=25599 vsize=415928 CPUtime=0
/proc/25601/stat : 25601 (adaptg2wsat2009) R 25599 25601 25564 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 42101506 425910272 127 1992294400 134512640 135107411 4294956208 18446744073709551615 134523245 0 0 4096 0 0 0 0 17 1 0 0
/proc/25601/statm: 103982 127 49 145 0 102858 0

[startup+0.0805151 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 25601
/proc/meminfo: memFree=854904/2055920 swapFree=4192956/4192956
[pid=25601] ppid=25599 vsize=416064 CPUtime=0.07
/proc/25601/stat : 25601 (adaptg2wsat2009) R 25599 25601 25564 0 -1 4194304 208 0 0 0 7 0 0 0 18 0 1 0 42101506 426049536 191 1992294400 134512640 135107411 4294956208 18446744073709551615 134531615 0 0 4096 0 0 0 0 17 1 0 0
/proc/25601/statm: 104016 191 59 145 0 102892 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 416064

[startup+0.101516 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 25601
/proc/meminfo: memFree=854904/2055920 swapFree=4192956/4192956
[pid=25601] ppid=25599 vsize=416064 CPUtime=0.09
/proc/25601/stat : 25601 (adaptg2wsat2009) R 25599 25601 25564 0 -1 4194304 208 0 0 0 9 0 0 0 18 0 1 0 42101506 426049536 191 1992294400 134512640 135107411 4294956208 18446744073709551615 134531600 0 0 4096 0 0 0 0 17 1 0 0
/proc/25601/statm: 104016 191 59 145 0 102892 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 416064

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

[startup+0.201527 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 25601
/proc/meminfo: memFree=854904/2055920 swapFree=4192956/4192956
[pid=25601] ppid=25599 vsize=416064 CPUtime=0.19
/proc/25601/stat : 25601 (adaptg2wsat2009) R 25599 25601 25564 0 -1 4194304 208 0 0 0 19 0 0 0 18 0 1 0 42101506 426049536 191 1992294400 134512640 135107411 4294956208 18446744073709551615 134531615 0 0 4096 0 0 0 0 17 1 0 0
/proc/25601/statm: 104016 191 59 145 0 102892 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 416064

Child status: 10
Real time (s): 0.299939
CPU time (s): 0.299953
CPU user time (s): 0.297954
CPU system time (s): 0.001999
CPU usage (%): 100.005
Max. virtual memory (cumulated for all children) (KiB): 416064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.297954
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= 221
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 0.006998 second system time

The end

Launcher Data 

Begin job on node62 at 2009-04-19 13:32:19
IDJOB=1629736
IDBENCH=70650
IDSOLVER=584
FILE ID=node62/1629736-1240140739
PBS_JOBID= 9157896
Free space on /tmp= 66336 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S1045096471-025.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629736-1240140739/watcher-1629736-1240140739 -o /tmp/evaluation-result-1629736-1240140739/solver-1629736-1240140739 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1629736-1240140739.cnf 1755538188

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

MD5SUM BENCH= 855b59e9a0f8a08a40646aec3f122ba2
RANDOM SEED=1755538188

node62.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		: 3000.220
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		: 3000.220
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:        855384 kB
Buffers:         89280 kB
Cached:        1007900 kB
SwapCached:          0 kB
Active:         381876 kB
Inactive:       730128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        855384 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4628 kB
Writeback:           0 kB
Mapped:          24576 kB
Slab:            74336 kB
Committed_AS:   189596 kB
PageTables:       1456 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66332 MiB
End job on node62 at 2009-04-19 13:32:20