Trace number 299271

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 0.537917 0.539439

General information on the benchmark

Namerandom/OnTreshold/3SAT/v600/
unif-k3-r4.261-v600-c2556-S1775402689-01.SAT.shuffled.cnf
MD5SUM01f9fe21f07697aca0271800a004de34
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.034993
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.51/0.53	c try 1 flip j 336456
0.51/0.53	c A solution is found
0.51/0.53	s SATISFIABLE
0.51/0.53	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 -551 -552 553 -554 -555 -556 557 558 559 -560 561 562 563 -564 -565 -566 -567 568 -569 570 571 -572 573 574 575 576 -577 578 -579 -580 -581 -582 583 584 -585 -586 -587 -588 -589 590 591 -592 593 594 595 -596 597 598 -599 600 
0.51/0.53	v 0 
0.51/0.53	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/node67/watcher-299271-1171868680 -o ROOT/results/node67/solver-299271-1171868680 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299271-1171868680/FH /tmp/evaluation/299271-1171868680/instance-299271-1171868680.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: 7.36 6.94 4.35 3/64 3279
/proc/meminfo: memFree=566896/2055920 swapFree=4183772/4192956
[pid=3279] ppid=3277 vsize=244848 CPUtime=0
/proc/3279/stat : 3279 (FH) R 3277 3279 2829 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 206825655 250724352 117 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134522106 0 0 4096 0 0 0 0 17 1 0 0
/proc/3279/statm: 61212 117 36 103 0 60716 0

[startup+0.106418 s]
/proc/loadavg: 7.36 6.94 4.35 3/64 3279
/proc/meminfo: memFree=566896/2055920 swapFree=4183772/4192956
[pid=3279] ppid=3277 vsize=246532 CPUtime=0.1
/proc/3279/stat : 3279 (FH) R 3277 3279 2829 0 -1 4194304 215 0 0 0 10 0 0 0 18 0 1 0 206825655 252448768 195 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553236 0 0 4096 0 0 0 0 17 1 0 0
/proc/3279/statm: 61633 195 40 103 0 61137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246532

[startup+0.514459 s]
/proc/loadavg: 7.36 6.94 4.35 3/64 3279
/proc/meminfo: memFree=566896/2055920 swapFree=4183772/4192956
[pid=3279] ppid=3277 vsize=246532 CPUtime=0.51
/proc/3279/stat : 3279 (FH) R 3277 3279 2829 0 -1 4194304 215 0 0 0 51 0 0 0 21 0 1 0 206825655 252448768 195 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553417 0 0 4096 0 0 0 0 17 1 0 0
/proc/3279/statm: 61633 195 40 103 0 61137 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246532

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

[startup+0.514459 s]
/proc/loadavg: 7.36 6.94 4.35 3/64 3279
/proc/meminfo: memFree=566896/2055920 swapFree=4183772/4192956
[pid=3279] ppid=3277 vsize=246532 CPUtime=0.51
/proc/3279/stat : 3279 (FH) R 3277 3279 2829 0 -1 4194304 215 0 0 0 51 0 0 0 21 0 1 0 206825655 252448768 195 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553417 0 0 4096 0 0 0 0 17 1 0 0
/proc/3279/statm: 61633 195 40 103 0 61137 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246532

Child status: 10
Real time (s): 0.539439
CPU time (s): 0.537917
CPU user time (s): 0.535918
CPU system time (s): 0.001999
CPU usage (%): 99.7178
Max. virtual memory (cumulated for all children) (KiB): 246532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.535918
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= 228
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 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Mon Feb 19 07:04:40 UTC 2007

IDJOB= 299271
IDBENCH= 20006
IDSOLVER= 117
FILE ID= node67/299271-1171868680

PBS_JOBID= 3839764

Free space on /tmp= 66558 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v600/unif-k3-r4.261-v600-c2556-S1775402689-01.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299271-1171868680/FH /tmp/evaluation/299271-1171868680/instance-299271-1171868680.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-299271-1171868680 -o ROOT/results/node67/solver-299271-1171868680 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299271-1171868680/FH /tmp/evaluation/299271-1171868680/instance-299271-1171868680.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  01f9fe21f07697aca0271800a004de34

RANDOM SEED= 50351609

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.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		: 3000.236
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		: 3000.236
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:        567304 kB
Buffers:         51048 kB
Cached:        1315748 kB
SwapCached:       3608 kB
Active:         746388 kB
Inactive:       630544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        567304 kB
SwapTotal:     4192956 kB
SwapFree:      4183772 kB
Dirty:            6152 kB
Writeback:           0 kB
Mapped:          15560 kB
Slab:            97672 kB
Committed_AS:   675988 kB
PageTables:       1452 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 node67 on Mon Feb 19 07:04:41 UTC 2007