Trace number 1632960

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
TNM 2009-03-22SAT 0.024996 0.0254561

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S1916548023-003.cnf
MD5SUM11db2aaf72f0cb9c260a5127c4f6b388
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 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 

0.01/0.02	c try 1 flip j 13239
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 -521 -522 -523 524 525 -526 527 -528 -529 -530 -531 -532 -533 -534 535 536 537 -538 -539 -540 
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-1632960-1240311633/watcher-1632960-1240311633 -o /tmp/evaluation-result-1632960-1240311633/solver-1632960-1240311633 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1632960-1240311633.cnf 438831150 

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 1.23 1.57 3/64 7881
/proc/meminfo: memFree=1173616/2055920 swapFree=4192956/4192956
[pid=7881] ppid=7879 vsize=451060 CPUtime=0
/proc/7881/stat : 7881 (TNM) R 7879 7881 7520 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 59197287 461885440 125 1992294400 134512640 135094415 4294956240 18446744073709551615 134523998 0 0 4096 0 0 0 0 17 1 0 0
/proc/7881/statm: 112765 125 49 142 0 111644 0

[startup+0.0119241 s]
/proc/loadavg: 1.00 1.23 1.57 3/64 7881
/proc/meminfo: memFree=1173616/2055920 swapFree=4192956/4192956
[pid=7881] ppid=7879 vsize=451060 CPUtime=0.01
/proc/7881/stat : 7881 (TNM) R 7879 7881 7520 0 -1 4194304 201 0 0 0 1 0 0 0 18 0 1 0 59197287 461885440 185 1992294400 134512640 135094415 4294956240 18446744073709551615 134527104 0 0 4096 0 0 0 0 17 1 0 0
/proc/7881/statm: 112765 185 50 142 0 111644 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 451060

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

[startup+0.0119241 s]
/proc/loadavg: 1.00 1.23 1.57 3/64 7881
/proc/meminfo: memFree=1173616/2055920 swapFree=4192956/4192956
[pid=7881] ppid=7879 vsize=451060 CPUtime=0.01
/proc/7881/stat : 7881 (TNM) R 7879 7881 7520 0 -1 4194304 201 0 0 0 1 0 0 0 18 0 1 0 59197287 461885440 185 1992294400 134512640 135094415 4294956240 18446744073709551615 134527104 0 0 4096 0 0 0 0 17 1 0 0
/proc/7881/statm: 112765 185 50 142 0 111644 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 451060

Child status: 10
Real time (s): 0.0254561
CPU time (s): 0.024996
CPU user time (s): 0.024996
CPU system time (s): 0
CPU usage (%): 98.1927
Max. virtual memory (cumulated for all children) (KiB): 451060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
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= 218
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 0.000999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node4 at 2009-04-21 13:00:33
IDJOB=1632960
IDBENCH=70708
IDSOLVER=589
FILE ID=node4/1632960-1240311633
PBS_JOBID= 9159942
Free space on /tmp= 66208 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S1916548023-003.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1632960-1240311633/watcher-1632960-1240311633 -o /tmp/evaluation-result-1632960-1240311633/solver-1632960-1240311633 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1632960-1240311633.cnf 438831150

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

MD5SUM BENCH= 11db2aaf72f0cb9c260a5127c4f6b388
RANDOM SEED=438831150

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:       1174032 kB
Buffers:         92240 kB
Cached:         690440 kB
SwapCached:          0 kB
Active:          92708 kB
Inactive:       703380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1174032 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            5108 kB
Writeback:           0 kB
Mapped:          23108 kB
Slab:            71756 kB
Committed_AS:   305576 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= 66204 MiB
End job on node4 at 2009-04-21 13:00:33