Trace number 1632959

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
SAT07 reference solver: adaptg2wsat+ 2007-02-08SAT 0.267958 0.267912

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S1332067449-041.cnf
MD5SUM2b606655a01fc0a35cd7131dc9f54b92
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
Satisfiable
(Un)Satisfiability was proved
Number of variables540
Number of clauses2295
Sum of the clauses size6885
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32295
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.19/0.26	c try 1 flip j 273937
0.19/0.26	c A solution is found
0.19/0.26	s SATISFIABLE
0.19/0.26	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 -520 521 522 523 -524 525 526 527 528 -529 -530 531 -532 -533 534 -535 536 -537 -538 539 540 
0.19/0.26	v 0 
0.19/0.26	c Done (mycputime is 0.000 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-1632959-1240311632/watcher-1632959-1240311632 -o /tmp/evaluation-result-1632959-1240311632/solver-1632959-1240311632 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/adaptg2wsat+ HOME/instance-1632959-1240311632.cnf 

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: 1.00 1.24 1.57 3/64 7827
/proc/meminfo: memFree=1172144/2055920 swapFree=4192956/4192956
[pid=7827] ppid=7825 vsize=215152 CPUtime=0
/proc/7827/stat : 7827 (adaptg2wsat+) R 7825 7827 7520 0 -1 4194304 130 0 0 0 0 0 0 0 18 0 1 0 59197175 220315648 114 1992294400 134512640 134930140 4294956224 18446744073709551615 134523464 0 0 4096 0 0 0 0 17 0 0 0
/proc/7827/statm: 53788 114 38 101 0 53294 0

[startup+0.0849671 s]
/proc/loadavg: 1.00 1.24 1.57 3/64 7827
/proc/meminfo: memFree=1172144/2055920 swapFree=4192956/4192956
[pid=7827] ppid=7825 vsize=216704 CPUtime=0.08
/proc/7827/stat : 7827 (adaptg2wsat+) R 7825 7827 7520 0 -1 4194304 186 0 0 0 8 0 0 0 18 0 1 0 59197175 221904896 167 1992294400 134512640 134930140 4294956224 18446744073709551615 134547208 0 0 4096 0 0 0 0 17 0 0 0
/proc/7827/statm: 54176 167 41 101 0 53682 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 216704

[startup+0.10197 s]
/proc/loadavg: 1.00 1.24 1.57 3/64 7827
/proc/meminfo: memFree=1172144/2055920 swapFree=4192956/4192956
[pid=7827] ppid=7825 vsize=216704 CPUtime=0.09
/proc/7827/stat : 7827 (adaptg2wsat+) R 7825 7827 7520 0 -1 4194304 186 0 0 0 9 0 0 0 18 0 1 0 59197175 221904896 167 1992294400 134512640 134930140 4294956224 18446744073709551615 134545659 0 0 4096 0 0 0 0 17 0 0 0
/proc/7827/statm: 54176 167 41 101 0 53682 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 216704

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

[startup+0.201987 s]
/proc/loadavg: 1.00 1.24 1.57 3/64 7827
/proc/meminfo: memFree=1172144/2055920 swapFree=4192956/4192956
[pid=7827] ppid=7825 vsize=216704 CPUtime=0.19
/proc/7827/stat : 7827 (adaptg2wsat+) R 7825 7827 7520 0 -1 4194304 186 0 0 0 19 0 0 0 18 0 1 0 59197175 221904896 167 1992294400 134512640 134930140 4294956224 18446744073709551615 134551998 0 0 4096 0 0 0 0 17 0 0 0
/proc/7827/statm: 54176 167 41 101 0 53682 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 216704

Child status: 10
Real time (s): 0.267912
CPU time (s): 0.267958
CPU user time (s): 0.264959
CPU system time (s): 0.002999
CPU usage (%): 100.017
Max. virtual memory (cumulated for all children) (KiB): 216704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.264959
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= 198
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= 1

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node4 at 2009-04-21 13:00:32
IDJOB=1632959
IDBENCH=70707
IDSOLVER=591
FILE ID=node4/1632959-1240311632
PBS_JOBID= 9159942
Free space on /tmp= 66208 MiB

SOLVER NAME= SAT07 reference solver: adaptg2wsat+ 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S1332067449-041.cnf
COMMAND LINE= HOME/adaptg2wsat+ BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1632959-1240311632/watcher-1632959-1240311632 -o /tmp/evaluation-result-1632959-1240311632/solver-1632959-1240311632 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/adaptg2wsat+ HOME/instance-1632959-1240311632.cnf            

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

MD5SUM BENCH= 2b606655a01fc0a35cd7131dc9f54b92
RANDOM SEED=1241057749

node4.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		: 3000.265
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		: 3000.265
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:       1172624 kB
Buffers:         92204 kB
Cached:         692040 kB
SwapCached:          0 kB
Active:          92624 kB
Inactive:       704932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1172624 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            6660 kB
Writeback:           0 kB
Mapped:          23108 kB
Slab:            71744 kB
Committed_AS:   304036 kB
PageTables:       1468 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= 66200 MiB
End job on node4 at 2009-04-21 13:00:32