Trace number 3426944

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
sattime2011 2011-03-02SAT 0.064989 0.0651129

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S252359291-002.SATISFIABLE.cnf
MD5SUMe7d056c40976f07c31ebd30dc9590b89
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022995
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 

0.00/0.06	c 0 clauses are redundant and removed
0.00/0.06	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.06	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.06	c initial seed is 1259915487
0.00/0.06	c try=1 flip j=124396 walk=107062 seed 1259915504
0.00/0.06	c A solution is found
0.00/0.06	s SATISFIABLE
0.00/0.06	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 
0.00/0.06	v 0 
0.00/0.06	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3426944-1306781782/watcher-3426944-1306781782 -o /tmp/evaluation-result-3426944-1306781782/solver-3426944-1306781782 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426944-1306781782.cnf 1259912030 

running on 4 cores: 0,2,4,6

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): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.98 2.04 2.01 3/482 20305
/proc/meminfo: memFree=4590604/32950928 swapFree=61566048/67111528
[pid=20303] ppid=20300 vsize=1185848 CPUtime=0 cores=0,2,4,6
/proc/20303/stat : 20303 (sattime2011) R 20300 20303 19443 0 -1 4202496 390 0 0 0 0 0 0 0 20 0 1 0 868408862 1214308352 334 33554432000 4194304 4230460 140737165871744 18446744073709551615 4199891 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/20303/statm: 296462 334 117 9 0 293619 0

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

Child status: 10
Real time (s): 0.0651129
CPU time (s): 0.064989
CPU user time (s): 0.06299
CPU system time (s): 0.001999
CPU usage (%): 99.8096
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.06299
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= 394
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= 3
involuntary context switches= 1

runsolver used 0.004999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node116 at 2011-05-30 20:56:22
IDJOB=3426944
IDBENCH=82916
IDSOLVER=1924
FILE ID=node116/3426944-1306781782
RUNJOBID= node116-1306781782-20286
PBS_JOBID= 13475008
Free space on /tmp= 53612 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S252359291-002.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426944-1306781782/watcher-3426944-1306781782 -o /tmp/evaluation-result-3426944-1306781782/solver-3426944-1306781782 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426944-1306781782.cnf 1259912030

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= e7d056c40976f07c31ebd30dc9590b89
RANDOM SEED=1259912030

node116.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.65
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5226.15
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       4591040 kB
Buffers:        163936 kB
Cached:       20307724 kB
SwapCached:      16388 kB
Active:       13663516 kB
Inactive:     13944848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4591040 kB
SwapTotal:    67111528 kB
SwapFree:     61566048 kB
Dirty:           15572 kB
Writeback:           0 kB
AnonPages:     7130384 kB
Mapped:          22152 kB
Slab:           619136 kB
PageTables:      62076 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 139575444 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 53596 MiB
End job on node116 at 2011-05-30 20:56:22