Trace number 297344

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, and are wall clock time (not CPU 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
FH 2007-02-08SAT 0.135978 0.137848

General information on the benchmark

Namerandom/OnTreshold/3SAT/v550/
unif-k3-r4.26-v550-c2343-S1699479488-11.SAT.shuffled.cnf
MD5SUM9278c1d1a76bef19bacee2a78120fe47
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.10/0.13	c try 1 flip j 88506
0.10/0.13	c A solution is found
0.10/0.13	s SATISFIABLE
0.10/0.13	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 -540 541 542 543 -544 -545 -546 547 -548 -549 550 
0.10/0.13	v 0 
0.10/0.13	c Done (mycputime is 0.000 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node70/watcher-297344-1171837171 -o ROOT/results/node70/solver-297344-1171837171 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/297344-1171837171/FH /tmp/evaluation/297344-1171837171/instance-297344-1171837171.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 7.49 6.97 4.40 3/64 15300
/proc/meminfo: memFree=423616/2055920 swapFree=4183276/4192956
[pid=15300] ppid=15298 vsize=244848 CPUtime=0
/proc/15300/stat : 15300 (FH) R 15298 15300 13868 0 -1 4194304 130 0 0 0 0 0 0 0 18 0 1 0 166517839 250724352 113 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134523582 0 0 4096 0 0 0 0 17 0 0 0
/proc/15300/statm: 61212 113 36 103 0 60716 0

[startup+0.108129 s]
/proc/loadavg: 7.49 6.97 4.40 3/64 15300
/proc/meminfo: memFree=423616/2055920 swapFree=4183276/4192956
[pid=15300] ppid=15298 vsize=246532 CPUtime=0.1
/proc/15300/stat : 15300 (FH) R 15298 15300 13868 0 -1 4194304 205 0 0 0 10 0 0 0 18 0 1 0 166517839 252448768 185 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552497 0 0 4096 0 0 0 0 17 0 0 0
/proc/15300/statm: 61633 185 40 103 0 61137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246532

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

[startup+0.108129 s]
/proc/loadavg: 7.49 6.97 4.40 3/64 15300
/proc/meminfo: memFree=423616/2055920 swapFree=4183276/4192956
[pid=15300] ppid=15298 vsize=246532 CPUtime=0.1
/proc/15300/stat : 15300 (FH) R 15298 15300 13868 0 -1 4194304 205 0 0 0 10 0 0 0 18 0 1 0 166517839 252448768 185 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552497 0 0 4096 0 0 0 0 17 0 0 0
/proc/15300/statm: 61633 185 40 103 0 61137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246532

Child status: 10
Real time (s): 0.137848
CPU time (s): 0.135978
CPU user time (s): 0.134979
CPU system time (s): 0.000999
CPU usage (%): 98.6435
Max. virtual memory (cumulated for all children) (KiB): 246532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.134979
system time used= 0.000999
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= 8
involuntary context switches= 2

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node70 on Sun Feb 18 22:19:31 UTC 2007

IDJOB= 297344
IDBENCH= 19959
IDSOLVER= 117
FILE ID= node70/297344-1171837171

PBS_JOBID= 3839705

Free space on /tmp= 66558 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v550/unif-k3-r4.26-v550-c2343-S1699479488-11.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/297344-1171837171/FH /tmp/evaluation/297344-1171837171/instance-297344-1171837171.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-297344-1171837171 -o ROOT/results/node70/solver-297344-1171837171 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/297344-1171837171/FH /tmp/evaluation/297344-1171837171/instance-297344-1171837171.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  9278c1d1a76bef19bacee2a78120fe47

RANDOM SEED= 325241189

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node70.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.261
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		: 3000.261
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:        424032 kB
Buffers:         49376 kB
Cached:        1458068 kB
SwapCached:       4060 kB
Active:         832728 kB
Inactive:       684968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        424032 kB
SwapTotal:     4192956 kB
SwapFree:      4183276 kB
Dirty:            6152 kB
Writeback:           0 kB
Mapped:          15628 kB
Slab:           100280 kB
Committed_AS:   214760 kB
PageTables:       1396 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= 66558 MiB

End job on node70 on Sun Feb 18 22:19:32 UTC 2007