Trace number 460651

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-sp 2007-05-15SAT 192.438 192.499

General information on the benchmark

Nameindustrial-aig/
narain/clauses-4.aig
MD5SUM32af416c798c65b7cda5b01939480d0b
Bench CategoryALL (all instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark68.5376
SatisfiableYES
(Un)Satisfiability was proved

Solver Data (download as text)

13.49/13.52	c file: /tmp/evaluation/460651-1179250368/instance-460651-1179250368.aig
13.49/13.52	c Reading aig format..
13.49/13.52	c MAXVAR  390508
13.49/13.52	c INPUTS  21441
13.49/13.52	c LATCHES 0
13.49/13.52	c OUTPUTS 1
13.49/13.52	c AND     369067
13.49/13.52	c Before initialization time (seconds) 13.065
13.49/13.52	c Memory used (in MB): 316.688
192.33/192.42	c Pre-processing followed by bcp (no decisions) assigned 398 vars 
192.33/192.42	
192.33/192.42	s SATISFIABLE
192.33/192.42	c Total time (in seconds): 191.67
192.33/192.42	c Memory used (in MB): 415.594
192.33/192.42	c Conflict literals deleted: [31.7753%] Max learned #lits [5842084] Reduced #lits [3985747]

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/node58/watcher-460651-1179250368 -o ROOT/results/node58/solver-460651-1179250368 -C 1200 -W 1800 -M 1800 --output-limit 1,15 -S 1 /tmp/evaluation/460651-1179250368/aigsat-sp /tmp/evaluation/460651-1179250368/instance-460651-1179250368.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: 0.92 0.98 0.99 3/64 29853
/proc/meminfo: memFree=1793328/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=4244 CPUtime=0
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 887 0 0 0 0 0 0 0 18 0 1 0 372946553 4345856 875 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 135188852 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 1061 882 121 277 0 779 0

[startup+0.055149 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29853
/proc/meminfo: memFree=1793328/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=8824 CPUtime=0.05
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 2057 0 0 0 4 1 0 0 18 0 1 0 372946553 9035776 2045 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 135222829 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 2206 2045 121 277 0 1924 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 8824

[startup+0.101155 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29853
/proc/meminfo: memFree=1793328/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=8996 CPUtime=0.09
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 2100 0 0 0 8 1 0 0 18 0 1 0 372946553 9211904 2088 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 135181156 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 2249 2088 121 277 0 1967 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8996

[startup+0.301189 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29853
/proc/meminfo: memFree=1793328/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=17748 CPUtime=0.29
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 4429 0 0 0 27 2 0 0 19 0 1 0 372946553 18173952 4270 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134970287 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 4437 4270 131 277 0 4155 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17748

[startup+0.701256 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29853
/proc/meminfo: memFree=1793328/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=36536 CPUtime=0.69
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 9209 0 0 0 65 4 0 0 22 0 1 0 372946553 37412864 8857 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134970294 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 9134 8858 131 277 0 8852 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 36536

[startup+1.50139 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1744168/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=64928 CPUtime=1.49
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 18250 0 0 0 142 7 0 0 25 0 1 0 372946553 66486272 15605 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134970287 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 16232 15605 131 277 0 15950 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 64928

[startup+3.10166 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1717608/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=111160 CPUtime=3.09
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 29641 0 0 0 298 11 0 0 25 0 1 0 372946553 113827840 26555 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134970287 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 27790 26555 132 277 0 27508 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 111160

[startup+6.3022 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1644392/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=172468 CPUtime=6.3
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 48595 0 0 0 611 19 0 0 25 0 1 0 372946553 176607232 40986 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134667413 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 43117 40986 136 277 0 42835 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 172468

[startup+12.7013 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1485928/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=351164 CPUtime=12.69
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 112535 0 0 0 1225 44 0 0 25 0 1 0 372946553 359591936 83026 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134648887 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 87791 83026 140 277 0 87509 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 351164

[startup+25.5014 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1452200/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=360940 CPUtime=25.48
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 124122 0 0 0 2498 50 0 0 25 0 1 0 372946553 369602560 85241 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134737214 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 90235 85241 158 277 0 89953 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 360940

[startup+51.1017 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1429096/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=384316 CPUtime=51.08
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 130082 0 0 0 5054 54 0 0 25 0 1 0 372946553 393539584 91072 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134574300 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 96079 91072 158 277 0 95797 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 384316

[startup+102.305 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1407272/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=404572 CPUtime=102.27
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 135648 0 0 0 10167 60 0 0 25 0 1 0 372946553 414281728 96445 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134575164 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 101143 96445 158 277 0 100861 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 404572

[startup+162.301 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1391016/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=419088 CPUtime=162.24
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 139703 0 0 0 16158 66 0 0 25 0 1 0 372946553 429146112 100500 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134574010 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 104772 100500 158 277 0 104490 0
Current children cumulated CPU time (s) 162.24
Current children cumulated vsize (KiB) 419088

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

[startup+179.102 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1388264/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=421676 CPUtime=179.03
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 140451 0 0 0 17836 67 0 0 25 0 1 0 372946553 431796224 101248 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134575090 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 105419 101248 158 277 0 105137 0
Current children cumulated CPU time (s) 179.03
Current children cumulated vsize (KiB) 421676

[startup+185.501 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1385576/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=423860 CPUtime=185.43
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 141104 0 0 0 18475 68 0 0 25 0 1 0 372946553 434032640 101901 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134574208 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 105965 101901 158 277 0 105683 0
Current children cumulated CPU time (s) 185.43
Current children cumulated vsize (KiB) 423860

[startup+188.702 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1384744/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=424488 CPUtime=188.63
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 141290 0 0 0 18794 69 0 0 25 0 1 0 372946553 434675712 102087 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134574292 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 106122 102087 158 277 0 105840 0
Current children cumulated CPU time (s) 188.63
Current children cumulated vsize (KiB) 424488

[startup+190.306 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1384168/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=424844 CPUtime=190.24
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 141392 0 0 0 18955 69 0 0 25 0 1 0 372946553 435040256 102189 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134574353 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 106211 102189 158 277 0 105929 0
Current children cumulated CPU time (s) 190.24
Current children cumulated vsize (KiB) 424844

[startup+191.101 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1384168/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=425004 CPUtime=191.03
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 141435 0 0 0 19034 69 0 0 25 0 1 0 372946553 435204096 102232 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134574282 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 106251 102232 158 277 0 105969 0
Current children cumulated CPU time (s) 191.03
Current children cumulated vsize (KiB) 425004

[startup+191.901 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1383912/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=425352 CPUtime=191.83
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 141540 0 0 0 19114 69 0 0 25 0 1 0 372946553 435560448 102337 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134556612 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 106338 102337 158 277 0 106056 0
Current children cumulated CPU time (s) 191.83
Current children cumulated vsize (KiB) 425352

[startup+192.301 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1383912/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=425508 CPUtime=192.23
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 141588 0 0 0 19154 69 0 0 25 0 1 0 372946553 435720192 102385 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134574300 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 106377 102385 158 277 0 106095 0
Current children cumulated CPU time (s) 192.23
Current children cumulated vsize (KiB) 425508

[startup+192.401 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 29854
/proc/meminfo: memFree=1383336/2055920 swapFree=4184552/4192956
[pid=29853] ppid=29851 vsize=425548 CPUtime=192.33
/proc/29853/stat : 29853 (aigsat-sp) R 29851 29853 29332 0 -1 0 141598 0 0 0 19164 69 0 0 25 0 1 0 372946553 435761152 102395 18446744073709551615 134512640 135650930 4294956592 18446744073709551615 134574276 0 0 4096 35 0 0 0 17 1 0 0
/proc/29853/statm: 106387 102395 158 277 0 106105 0
Current children cumulated CPU time (s) 192.33
Current children cumulated vsize (KiB) 425548

Child status: 10
Real time (s): 192.499
CPU time (s): 192.438
CPU user time (s): 191.67
CPU system time (s): 0.767883
CPU usage (%): 99.9683
Max. virtual memory (cumulated for all children) (KiB): 425548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 191.67
system time used= 0.767883
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 141602
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= 7
involuntary context switches= 244

runsolver used 0.198969 second user time and 0.445932 second system time

The end

Launcher Data (download as text)

Begin job on node58 on Tue May 15 17:32:49 UTC 2007

IDJOB= 460651
IDBENCH= 48507
IDSOLVER= 203
FILE ID= node58/460651-1179250368

PBS_JOBID= 5277077

Free space on /tmp= 66537 MiB

SOLVER NAME= aigsat-sp 2007-05-15
BENCH NAME= HOME/pub/bench/AIG07/industrial-aig/narain/clauses-4.aig
COMMAND LINE= /tmp/evaluation/460651-1179250368/aigsat-sp /tmp/evaluation/460651-1179250368/instance-460651-1179250368.aig            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-460651-1179250368 -o ROOT/results/node58/solver-460651-1179250368 -C 1200 -W 1800 -M 1800 --output-limit 1,15 -S 1 /tmp/evaluation/460651-1179250368/aigsat-sp /tmp/evaluation/460651-1179250368/instance-460651-1179250368.aig            

META MD5SUM SOLVER= f61578204551f85c79544b972aeb08d2
MD5SUM BENCH=  32af416c798c65b7cda5b01939480d0b

RANDOM SEED= 555855021

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.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		: 3000.265
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:       1793800 kB
Buffers:          4004 kB
Cached:         145344 kB
SwapCached:       2428 kB
Active:          25368 kB
Inactive:       133844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1793800 kB
SwapTotal:     4192956 kB
SwapFree:      4184552 kB
Dirty:            2980 kB
Writeback:           0 kB
Mapped:          16356 kB
Slab:            89008 kB
Committed_AS:  4882916 kB
PageTables:       1400 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= 66537 MiB

End job on node58 on Tue May 15 17:36:01 UTC 2007