Trace number 460178

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
aigsat-wc 2007-05-15UNSAT 215.875 215.982

General information on the benchmark

Nameindustrial-aig/anbulagan/
medium-unsat/total-10-11-u.aig
MD5SUMddebd4a1e59f4896b2aa59c0334a2ab0
Bench CategoryALL (all instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark114.401
SatisfiableNO
(Un)Satisfiability was proved

Solver Data (download as text)

40.38/40.44	c file: /tmp/evaluation/460178-1179248722/instance-460178-1179248722.aig
40.38/40.44	c Reading aig format..
40.38/40.44	c MAXVAR  1957200
40.38/40.44	c INPUTS  168392
40.38/40.44	c LATCHES 0
40.38/40.44	c OUTPUTS 1
40.38/40.44	c AND     1788808
40.38/40.44	c Before initialization time 38.8241
40.38/40.44	c Memory used (in MB): 1195.68
215.63/215.73	
215.63/215.73	s UNSATISFIABLE
215.63/215.73	c Total time (in seconds): 213.867
215.63/215.73	c Memory used (in MB): 1326.81
215.63/215.73	c Conflict literals deleted: [33.5214%] Max learned #lits [3953937] Reduced #lits [2628523]

Verifier Data (download as text)

No verification made

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node47/watcher-460178-1179248722 -o ROOT/results/node47/solver-460178-1179248722 -C 1200 -W 1800 -M 1800 --output-limit 1,15 -S 1 /tmp/evaluation/460178-1179248722/aigsat-wc /tmp/evaluation/460178-1179248722/instance-460178-1179248722.aig 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing Stack size limit: 1048576 KiB
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: 1048576 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 27482
/proc/meminfo: memFree=1666168/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=16612 CPUtime=0
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 395 249 0 0 0 0 0 0 18 0 1 0 279717706 17010688 375 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 135242916 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 4153 384 124 293 0 3854 0

[startup+0.059366 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 27482
/proc/meminfo: memFree=1666168/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=39552 CPUtime=0.04
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 9719 249 0 0 0 4 0 0 18 0 1 0 279717706 40501248 9698 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134758597 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 9888 9698 124 293 0 9589 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 39552

[startup+0.101371 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 27482
/proc/meminfo: memFree=1666168/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=39552 CPUtime=0.09
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 9720 249 0 0 5 4 0 0 18 0 1 0 279717706 40501248 9699 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 135276893 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 9888 9699 125 293 0 9589 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 39552

[startup+0.301392 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 27482
/proc/meminfo: memFree=1666168/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=39552 CPUtime=0.29
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 9720 249 0 0 24 5 0 0 20 0 1 0 279717706 40501248 9699 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 135276893 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 9888 9699 125 293 0 9589 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 39552

[startup+0.701436 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 27482
/proc/meminfo: memFree=1666168/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=42184 CPUtime=0.69
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 10378 249 0 0 63 6 0 0 23 0 1 0 279717706 43196416 10357 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134770952 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 10546 10357 125 293 0 10247 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 42184

[startup+1.50152 s]
/proc/loadavg: 0.91 0.95 0.90 2/78 27484
/proc/meminfo: memFree=1610800/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=80228 CPUtime=1.49
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 20431 249 0 0 140 9 0 0 25 0 1 0 279717706 82153472 19637 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 135023910 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 20057 19638 136 293 0 19758 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 80228

[startup+3.1017 s]
/proc/loadavg: 0.91 0.95 0.90 2/78 27484
/proc/meminfo: memFree=1556336/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=152368 CPUtime=3.08
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 38895 249 0 0 291 17 0 0 25 0 1 0 279717706 156024832 37332 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 135023903 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 38092 37333 136 293 0 37793 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 152368

[startup+6.30108 s]
/proc/loadavg: 0.92 0.95 0.90 2/78 27484
/proc/meminfo: memFree=1413752/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=309756 CPUtime=6.29
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 80092 249 0 0 595 34 0 0 25 0 1 0 279717706 317190144 73919 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 135023903 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 77439 73920 136 293 0 77140 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 309756

[startup+12.7027 s]
/proc/loadavg: 0.93 0.95 0.90 2/78 27484
/proc/meminfo: memFree=1265592/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=447780 CPUtime=12.68
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 125231 249 0 0 1217 51 0 0 25 0 1 0 279717706 458526720 106742 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 135023903 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 111945 106742 136 293 0 111646 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 447780

[startup+25.5011 s]
/proc/loadavg: 0.94 0.96 0.91 2/78 27484
/proc/meminfo: memFree=709632/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=997504 CPUtime=25.48
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 278928 249 0 0 2436 112 0 0 25 0 1 0 279717706 1021444096 239515 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134634182 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 249376 239515 142 293 0 249077 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 997504

[startup+51.1019 s]
/proc/loadavg: 0.96 0.96 0.91 2/78 27484
/proc/meminfo: memFree=391488/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1336584 CPUtime=51.08
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 420159 249 0 0 4938 170 0 0 25 0 1 0 279717706 1368662016 318096 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134743665 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 334146 318096 159 293 0 333847 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 1336584

[startup+102.305 s]
/proc/loadavg: 0.98 0.96 0.91 2/78 27484
/proc/meminfo: memFree=385920/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1341764 CPUtime=102.27
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 421560 249 0 0 10055 172 0 0 25 0 1 0 279717706 1373966336 319497 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134725854 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 335441 319497 159 293 0 335142 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 1341764

[startup+162.302 s]
/proc/loadavg: 1.07 0.99 0.91 2/78 27484
/proc/meminfo: memFree=375552/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1351892 CPUtime=162.24
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 424192 249 0 0 16048 176 0 0 25 0 1 0 279717706 1384337408 322129 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134744761 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 337973 322129 159 293 0 337674 0
Current children cumulated CPU time (s) 162.24
Current children cumulated vsize (KiB) 1351892

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

[startup+179.102 s]
/proc/loadavg: 1.06 0.99 0.91 2/78 27484
/proc/meminfo: memFree=372160/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1355100 CPUtime=179.04
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 425022 249 0 0 17726 178 0 0 25 0 1 0 279717706 1387622400 322959 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134752662 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 338775 322959 159 293 0 338476 0
Current children cumulated CPU time (s) 179.04
Current children cumulated vsize (KiB) 1355100

[startup+191.901 s]
/proc/loadavg: 1.04 0.99 0.91 2/78 27484
/proc/meminfo: memFree=370688/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1356412 CPUtime=191.84
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 425376 249 0 0 19005 179 0 0 25 0 1 0 279717706 1388965888 323313 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134744715 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 339103 323313 159 293 0 338804 0
Current children cumulated CPU time (s) 191.84
Current children cumulated vsize (KiB) 1356412

[startup+204.701 s]
/proc/loadavg: 1.03 0.99 0.91 2/78 27484
/proc/meminfo: memFree=369216/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1357760 CPUtime=204.63
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 425736 249 0 0 20284 179 0 0 25 0 1 0 279717706 1390346240 323673 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134743579 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 339440 323673 159 293 0 339141 0
Current children cumulated CPU time (s) 204.63
Current children cumulated vsize (KiB) 1357760

[startup+211.101 s]
/proc/loadavg: 1.03 0.99 0.91 2/78 27484
/proc/meminfo: memFree=368704/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1358284 CPUtime=211.03
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 425877 249 0 0 20924 179 0 0 25 0 1 0 279717706 1390882816 323814 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134744350 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 339571 323814 159 293 0 339272 0
Current children cumulated CPU time (s) 211.03
Current children cumulated vsize (KiB) 1358284

[startup+214.301 s]
/proc/loadavg: 1.03 0.99 0.91 2/78 27484
/proc/meminfo: memFree=368512/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1358540 CPUtime=214.22
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 425946 249 0 0 21243 179 0 0 25 0 1 0 279717706 1391144960 323883 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134745348 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 339635 323883 159 293 0 339336 0
Current children cumulated CPU time (s) 214.22
Current children cumulated vsize (KiB) 1358540

[startup+215.102 s]
/proc/loadavg: 1.03 0.99 0.91 2/78 27484
/proc/meminfo: memFree=368448/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1358604 CPUtime=215.03
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 425966 249 0 0 21323 180 0 0 25 0 1 0 279717706 1391210496 323903 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134744691 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 339651 323903 159 293 0 339352 0
Current children cumulated CPU time (s) 215.03
Current children cumulated vsize (KiB) 1358604

[startup+215.502 s]
/proc/loadavg: 1.03 0.99 0.91 2/78 27484
/proc/meminfo: memFree=368320/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=1358632 CPUtime=215.44
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 0 425973 249 0 0 21364 180 0 0 25 0 1 0 279717706 1391239168 323910 18446744073709551615 134512640 135716322 4294956672 18446744073709551615 134744777 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 339658 323910 159 293 0 339359 0
Current children cumulated CPU time (s) 215.44
Current children cumulated vsize (KiB) 1358632

[startup+215.902 s]
/proc/loadavg: 1.03 0.99 0.91 2/78 27484
/proc/meminfo: memFree=368320/2055920 swapFree=4157848/4192956
[pid=27482] ppid=27480 vsize=0 CPUtime=215.82
/proc/27482/stat : 27482 (aigsat-wc) R 27480 27482 27130 0 -1 4 425979 249 0 0 21386 196 0 0 25 0 1 0 279717706 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 35 0 0 0 17 1 0 0
/proc/27482/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 215.82
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 215.982
CPU time (s): 215.875
CPU user time (s): 213.869
CPU system time (s): 2.00569
CPU usage (%): 99.9505
Max. virtual memory (cumulated for all children) (KiB): 1358640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 213.869
system time used= 2.00569
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 426228
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= 14
involuntary context switches= 258

runsolver used 0.247962 second user time and 0.542917 second system time

The end

Launcher Data (download as text)

Begin job on node47 on Tue May 15 17:05:23 UTC 2007

IDJOB= 460178
IDBENCH= 48389
IDSOLVER= 202
FILE ID= node47/460178-1179248722

PBS_JOBID= 5277099

Free space on /tmp= 66521 MiB

SOLVER NAME= aigsat-wc 2007-05-15
BENCH NAME= HOME/pub/bench/AIG07/industrial-aig/anbulagan/medium-unsat/total-10-11-u.aig
COMMAND LINE= /tmp/evaluation/460178-1179248722/aigsat-wc /tmp/evaluation/460178-1179248722/instance-460178-1179248722.aig            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node47/watcher-460178-1179248722 -o ROOT/results/node47/solver-460178-1179248722 -C 1200 -W 1800 -M 1800 --output-limit 1,15 -S 1 /tmp/evaluation/460178-1179248722/aigsat-wc /tmp/evaluation/460178-1179248722/instance-460178-1179248722.aig            

META MD5SUM SOLVER= a44537a071ffb1a142b3275181a5083c
MD5SUM BENCH=  ddebd4a1e59f4896b2aa59c0334a2ab0

RANDOM SEED= 978642761

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node47.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		: 3000.221
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		: 3000.221
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:       1666512 kB
Buffers:         39268 kB
Cached:         230188 kB
SwapCached:       3768 kB
Active:          50840 kB
Inactive:       242288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1666512 kB
SwapTotal:     4192956 kB
SwapFree:      4157848 kB
Dirty:           10668 kB
Writeback:           0 kB
Mapped:          30748 kB
Slab:            81800 kB
Committed_AS:  5625388 kB
PageTables:       1776 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= 66521 MiB

End job on node47 on Tue May 15 17:09:00 UTC 2007