Trace number 316207

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
Spear FH 1.0UNSAT 200.647 200.711

General information on the benchmark

Namecrafted/spence/
medium/s69-100.cnf
MD5SUMb1f1c259b38436e8c9f1623770b4a93b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.9684
Satisfiable
(Un)Satisfiability was proved
Number of variables69
Number of clauses148
Sum of the clauses size444
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3148
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c (*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*) 
0.00/0.00	c (*)                                             (*) 
0.00/0.00	c (*)          Spear theorem prover               (*) 
0.00/0.00	c (*)        Copyright (C) 2006,2007              (*) 
0.00/0.00	c (*)     Domagoj Babic. All rights reserved.     (*) 
0.00/0.00	c (*)                                             (*) 
0.00/0.00	c (*)     There is NO warranty, not even for      (*) 
0.00/0.00	c (*) merchantability or fitness for a particular (*) 
0.00/0.00	c (*)  purpose. Please run with --license to see  (*) 
0.00/0.00	c (*)              license details.               (*) 
0.00/0.00	c (*)                                             (*) 
0.00/0.00	c (*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*) 
0.00/0.00	c 
0.00/0.00	c solving /tmp/evaluation/316207-1172665485/instance-316207-1172665485.cnf
200.62/200.70	s UNSATISFIABLE
200.62/200.70	c runtime 200.66 [s]

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-316207-1172665485 -o ROOT/results/node13/solver-316207-1172665485 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316207-1172665485/Spear-32 --model-stdout --time --spset-autotuned-fh_1_0 --dimacs /tmp/evaluation/316207-1172665485/instance-316207-1172665485.cnf 

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): 2400 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: 1.34 1.05 1.02 3/77 6752
/proc/meminfo: memFree=1713920/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=1396 CPUtime=0
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 180 0 0 0 0 0 0 0 18 0 1 0 286503005 1429504 165 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 349 165 140 302 0 44 0

[startup+0.090804 s]
/proc/loadavg: 1.34 1.05 1.02 3/77 6752
/proc/meminfo: memFree=1713920/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=1656 CPUtime=0.08
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 253 0 0 0 8 0 0 0 18 0 1 0 286503005 1695744 238 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 414 238 140 302 0 109 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1656

[startup+0.101771 s]
/proc/loadavg: 1.34 1.05 1.02 3/77 6752
/proc/meminfo: memFree=1713920/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=1656 CPUtime=0.09
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 261 0 0 0 9 0 0 0 18 0 1 0 286503005 1695744 246 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 414 246 140 302 0 109 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1656

[startup+0.301798 s]
/proc/loadavg: 1.34 1.05 1.02 3/77 6752
/proc/meminfo: memFree=1713920/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=2048 CPUtime=0.29
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 354 0 0 0 29 0 0 0 19 0 1 0 286503005 2097152 339 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 512 339 140 302 0 207 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2048

[startup+0.70185 s]
/proc/loadavg: 1.34 1.05 1.02 3/77 6752
/proc/meminfo: memFree=1713920/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=2596 CPUtime=0.69
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 471 0 0 0 68 1 0 0 22 0 1 0 286503005 2658304 456 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 649 456 140 302 0 344 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2596

[startup+1.50196 s]
/proc/loadavg: 1.31 1.05 1.01 2/78 6753
/proc/meminfo: memFree=1712376/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=3264 CPUtime=1.49
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 633 0 0 0 147 2 0 0 25 0 1 0 286503005 3342336 618 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 816 618 140 302 0 511 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3264

[startup+3.10117 s]
/proc/loadavg: 1.31 1.05 1.01 2/78 6753
/proc/meminfo: memFree=1711480/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=4184 CPUtime=3.09
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 865 0 0 0 305 4 0 0 25 0 1 0 286503005 4284416 850 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 1046 850 140 302 0 741 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4184

[startup+6.3016 s]
/proc/loadavg: 1.29 1.05 1.01 2/78 6753
/proc/meminfo: memFree=1710008/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=5412 CPUtime=6.29
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 1176 0 0 0 624 5 0 0 25 0 1 0 286503005 5541888 1128 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 1353 1128 140 302 0 1048 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5412

[startup+12.7014 s]
/proc/loadavg: 1.26 1.05 1.01 2/78 6753
/proc/meminfo: memFree=1708472/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=6908 CPUtime=12.69
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 1540 0 0 0 1262 7 0 0 25 0 1 0 286503005 7073792 1492 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 1727 1492 140 302 0 1422 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6908

[startup+25.5012 s]
/proc/loadavg: 1.20 1.05 1.01 2/78 6753
/proc/meminfo: memFree=1706296/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=9288 CPUtime=25.48
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 2117 0 0 0 2538 10 0 0 25 0 1 0 286503005 9510912 2004 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 2322 2004 140 302 0 2017 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 9288

[startup+51.1016 s]
/proc/loadavg: 1.13 1.04 1.01 2/78 6753
/proc/meminfo: memFree=1703224/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=12468 CPUtime=51.08
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 2875 0 0 0 5094 14 0 0 25 0 1 0 286503005 12767232 2762 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 3117 2762 140 302 0 2812 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 12468

[startup+102.305 s]
/proc/loadavg: 1.06 1.03 1.00 2/78 6753
/proc/meminfo: memFree=1698936/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=17476 CPUtime=102.27
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4063 0 0 0 10205 22 0 0 25 0 1 0 286503005 17895424 3821 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 134527017 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 4369 3821 140 302 0 4064 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 17476

[startup+162.301 s]
/proc/loadavg: 1.02 1.02 1.00 2/78 6753
/proc/meminfo: memFree=1696568/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=19756 CPUtime=162.24
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4653 0 0 0 16196 28 0 0 25 0 1 0 286503005 20230144 4411 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 134526818 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 4939 4411 140 302 0 4634 0
Current children cumulated CPU time (s) 162.24
Current children cumulated vsize (KiB) 19756

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

[startup+179.102 s]
/proc/loadavg: 1.01 1.02 1.00 2/78 6753
/proc/meminfo: memFree=1696120/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=20344 CPUtime=179.03
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4748 0 0 0 17874 29 0 0 25 0 1 0 286503005 20832256 4506 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 5086 4506 140 302 0 4781 0
Current children cumulated CPU time (s) 179.03
Current children cumulated vsize (KiB) 20344

[startup+191.901 s]
/proc/loadavg: 1.01 1.02 1.00 2/78 6753
/proc/meminfo: memFree=1695800/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=21000 CPUtime=191.83
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4859 0 0 0 19152 31 0 0 25 0 1 0 286503005 21504000 4617 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 134527046 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 5250 4617 140 302 0 4945 0
Current children cumulated CPU time (s) 191.83
Current children cumulated vsize (KiB) 21000

[startup+195.102 s]
/proc/loadavg: 1.01 1.02 1.00 2/78 6753
/proc/meminfo: memFree=1695672/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=21000 CPUtime=195.03
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4863 0 0 0 19472 31 0 0 25 0 1 0 286503005 21504000 4621 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 5250 4621 140 302 0 4945 0
Current children cumulated CPU time (s) 195.03
Current children cumulated vsize (KiB) 21000

[startup+198.301 s]
/proc/loadavg: 1.01 1.02 1.00 2/78 6753
/proc/meminfo: memFree=1695608/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=21000 CPUtime=198.23
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4872 0 0 0 19792 31 0 0 25 0 1 0 286503005 21504000 4630 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 5250 4630 140 302 0 4945 0
Current children cumulated CPU time (s) 198.23
Current children cumulated vsize (KiB) 21000

[startup+199.901 s]
/proc/loadavg: 1.01 1.02 1.00 2/78 6753
/proc/meminfo: memFree=1695608/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=21000 CPUtime=199.82
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4874 0 0 0 19951 31 0 0 25 0 1 0 286503005 21504000 4632 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 5250 4632 140 302 0 4945 0
Current children cumulated CPU time (s) 199.82
Current children cumulated vsize (KiB) 21000

[startup+200.301 s]
/proc/loadavg: 1.01 1.02 1.00 2/78 6753
/proc/meminfo: memFree=1695608/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=21000 CPUtime=200.22
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4875 0 0 0 19991 31 0 0 25 0 1 0 286503005 21504000 4633 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 5250 4633 140 302 0 4945 0
Current children cumulated CPU time (s) 200.22
Current children cumulated vsize (KiB) 21000

[startup+200.702 s]
/proc/loadavg: 1.01 1.02 1.00 2/78 6753
/proc/meminfo: memFree=1695608/2055920 swapFree=4192812/4192956
[pid=6752] ppid=6750 vsize=21000 CPUtime=200.62
/proc/6752/stat : 6752 (Spear-32) R 6750 6752 4832 0 -1 4194304 4875 0 0 0 20031 31 0 0 25 0 1 0 286503005 21504000 4633 18446744073709551615 134512640 135752790 4294956544 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/6752/statm: 5250 4633 140 302 0 4945 0
Current children cumulated CPU time (s) 200.62
Current children cumulated vsize (KiB) 21000

Child status: 20
Real time (s): 200.711
CPU time (s): 200.647
CPU user time (s): 200.325
CPU system time (s): 0.321951
CPU usage (%): 99.9679
Max. virtual memory (cumulated for all children) (KiB): 21000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 200.325
system time used= 0.321951
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4896
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= 6
involuntary context switches= 345

runsolver used 0.226965 second user time and 0.507922 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Wed Feb 28 12:24:45 UTC 2007

IDJOB= 316207
IDBENCH= 20435
IDSOLVER= 132
FILE ID= node13/316207-1172665485

PBS_JOBID= 3980957

Free space on /tmp= 66370 MiB

SOLVER NAME= Spear FH 1.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s69-100.cnf
COMMAND LINE= /tmp/evaluation/316207-1172665485/Spear-32 --model-stdout --time --spset-autotuned-fh_1_0 --dimacs  /tmp/evaluation/316207-1172665485/instance-316207-1172665485.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-316207-1172665485 -o ROOT/results/node13/solver-316207-1172665485 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316207-1172665485/Spear-32 --model-stdout --time --spset-autotuned-fh_1_0 --dimacs  /tmp/evaluation/316207-1172665485/instance-316207-1172665485.cnf            

META MD5SUM SOLVER= 53b58dfa80430416a78fe762713f980c
MD5SUM BENCH=  b1f1c259b38436e8c9f1623770b4a93b

RANDOM SEED= 252908358

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.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:       1714392 kB
Buffers:         14724 kB
Cached:         210220 kB
SwapCached:          0 kB
Active:         110356 kB
Inactive:       182688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1714392 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1676 kB
Writeback:           0 kB
Mapped:          87036 kB
Slab:            34004 kB
Committed_AS:  1189920 kB
PageTables:       1780 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= 66370 MiB

End job on node13 on Wed Feb 28 12:28:06 UTC 2007