Trace number 312648

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 2007-02-12UNSAT 177.21 177.274

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/dated-5-11-u.cnf
MD5SUM083d28c2adf10233f37f8b5a078c94a9
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark155.742
Satisfiable
(Un)Satisfiability was proved
Number of variables108786
Number of clauses482639
Sum of the clauses size1096328
Maximum clause length10
Minimum clause length1
Number of clauses of size 19230
Number of clauses of size 2395289
Number of clauses of size 357400
Number of clauses of size 42300
Number of clauses of size 59200
Number of clauses of size over 59220

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/312648-1176857770/instance-312648-1176857770.cnf
177.13/177.26	s UNSATISFIABLE
177.13/177.26	c runtime 177.22 [s]

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node3/watcher-312648-1176857770 -o ROOT/results/node3/solver-312648-1176857770 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/312648-1176857770/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/312648-1176857770/instance-312648-1176857770.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: 0.99 0.98 0.99 3/77 31288
/proc/meminfo: memFree=1621280/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=1700 CPUtime=0
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 235 0 0 0 0 0 0 0 18 0 1 0 161814794 1740800 220 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134513442 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 425 220 128 302 0 120 0

[startup+0.0816709 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 31288
/proc/meminfo: memFree=1621280/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=5004 CPUtime=0.07
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 1169 0 0 0 7 0 0 0 18 0 1 0 161814794 5124096 978 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 135259207 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 1251 978 129 302 0 946 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5004

[startup+0.101674 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 31288
/proc/meminfo: memFree=1621280/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=6596 CPUtime=0.09
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 1638 0 0 0 9 0 0 0 18 0 1 0 161814794 6754304 1237 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 1649 1237 129 302 0 1344 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6596

[startup+0.301707 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 31288
/proc/meminfo: memFree=1621280/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=18232 CPUtime=0.29
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 5338 0 0 0 25 4 0 0 19 0 1 0 161814794 18669568 3620 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 4558 3620 129 302 0 4253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 18232

[startup+0.701772 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 31288
/proc/meminfo: memFree=1621280/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=27584 CPUtime=0.69
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 8149 0 0 0 63 6 0 0 24 0 1 0 161814794 28246016 6302 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 135258954 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 6896 6302 129 302 0 6591 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 27584

[startup+1.5019 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31289
/proc/meminfo: memFree=1587800/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=39132 CPUtime=1.49
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 11450 0 0 0 141 8 0 0 25 0 1 0 161814794 40071168 9248 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 9783 9248 140 302 0 9478 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 39132

[startup+3.10116 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31289
/proc/meminfo: memFree=1584536/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=39132 CPUtime=3.09
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 11460 0 0 0 301 8 0 0 25 0 1 0 161814794 40071168 9258 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134526818 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 9783 9258 140 302 0 9478 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 39132

[startup+6.30168 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31289
/proc/meminfo: memFree=1584280/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=39136 CPUtime=6.29
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 11463 0 0 0 619 10 0 0 25 0 1 0 161814794 40075264 9261 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 9784 9261 141 302 0 9479 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 39136

[startup+12.7017 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31289
/proc/meminfo: memFree=1584280/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=39136 CPUtime=12.68
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 11463 0 0 0 1257 11 0 0 25 0 1 0 161814794 40075264 9261 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134526665 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 9784 9261 141 302 0 9479 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 39136

[startup+25.5018 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31289
/proc/meminfo: memFree=1584344/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=39328 CPUtime=25.48
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 11479 0 0 0 2535 13 0 0 25 0 1 0 161814794 40271872 9277 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134526896 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 9832 9277 141 302 0 9527 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 39328

[startup+51.1019 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 31289
/proc/meminfo: memFree=1583896/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=40072 CPUtime=51.07
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 11637 0 0 0 5090 17 0 0 25 0 1 0 161814794 41033728 9435 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134527175 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 10018 9435 141 302 0 9713 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 40072

[startup+102.305 s]
/proc/loadavg: 1.05 1.00 0.99 2/78 31289
/proc/meminfo: memFree=1576728/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=47068 CPUtime=102.25
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 13412 0 0 0 10200 25 0 0 25 0 1 0 161814794 48197632 11210 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134527175 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 11767 11210 141 302 0 11462 0
Current children cumulated CPU time (s) 102.25
Current children cumulated vsize (KiB) 47068

[startup+162.303 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 31289
/proc/meminfo: memFree=1569368/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=55024 CPUtime=162.23
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 15336 0 0 0 16188 35 0 0 25 0 1 0 161814794 56344576 13069 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 13756 13069 141 302 0 13451 0
Current children cumulated CPU time (s) 162.23
Current children cumulated vsize (KiB) 55024

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

[startup+166.302 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 31289
/proc/meminfo: memFree=1568920/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=55272 CPUtime=166.24
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 15425 0 0 0 16588 36 0 0 25 0 1 0 161814794 56598528 13158 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134527175 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 13818 13158 141 302 0 13513 0
Current children cumulated CPU time (s) 166.24
Current children cumulated vsize (KiB) 55272

[startup+172.706 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 31289
/proc/meminfo: memFree=1568792/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=55392 CPUtime=172.63
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 15448 0 0 0 17227 36 0 0 25 0 1 0 161814794 56721408 13181 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134526818 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 13848 13181 141 302 0 13543 0
Current children cumulated CPU time (s) 172.63
Current children cumulated vsize (KiB) 55392

[startup+174.302 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 31289
/proc/meminfo: memFree=1568792/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=55392 CPUtime=174.23
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 15448 0 0 0 17386 37 0 0 25 0 1 0 161814794 56721408 13181 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 13848 13181 141 302 0 13543 0
Current children cumulated CPU time (s) 174.23
Current children cumulated vsize (KiB) 55392

[startup+175.901 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 31289
/proc/meminfo: memFree=1568792/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=55392 CPUtime=175.83
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 15449 0 0 0 17546 37 0 0 25 0 1 0 161814794 56721408 13182 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 13848 13182 141 302 0 13543 0
Current children cumulated CPU time (s) 175.83
Current children cumulated vsize (KiB) 55392

[startup+176.701 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 31289
/proc/meminfo: memFree=1568792/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=55392 CPUtime=176.63
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 15449 0 0 0 17626 37 0 0 25 0 1 0 161814794 56721408 13182 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 13848 13182 141 302 0 13543 0
Current children cumulated CPU time (s) 176.63
Current children cumulated vsize (KiB) 55392

[startup+177.106 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 31289
/proc/meminfo: memFree=1568792/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=55392 CPUtime=177.03
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 15449 0 0 0 17666 37 0 0 25 0 1 0 161814794 56721408 13182 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 13848 13182 141 302 0 13543 0
Current children cumulated CPU time (s) 177.03
Current children cumulated vsize (KiB) 55392

[startup+177.201 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 31289
/proc/meminfo: memFree=1568792/2055920 swapFree=4132108/4192956
[pid=31288] ppid=31286 vsize=55392 CPUtime=177.13
/proc/31288/stat : 31288 (Spear-32) R 31286 31288 30287 0 -1 4194304 15449 0 0 0 17676 37 0 0 25 0 1 0 161814794 56721408 13182 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134526818 0 0 4096 0 0 0 0 17 1 0 0
/proc/31288/statm: 13848 13182 141 302 0 13543 0
Current children cumulated CPU time (s) 177.13
Current children cumulated vsize (KiB) 55392

Child status: 20
Real time (s): 177.274
CPU time (s): 177.21
CPU user time (s): 176.823
CPU system time (s): 0.386941
CPU usage (%): 99.964
Max. virtual memory (cumulated for all children) (KiB): 55392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 176.823
system time used= 0.386941
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15469
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= 269

runsolver used 0.223965 second user time and 0.425935 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Wed Apr 18 00:56:11 UTC 2007

IDJOB= 312648
IDBENCH= 20346
IDSOLVER= 133
FILE ID= node3/312648-1176857770

PBS_JOBID= 4590200

Free space on /tmp= 66412 MiB

SOLVER NAME= Spear 2007-02-12
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/dated-5-11-u.cnf
COMMAND LINE= /tmp/evaluation/312648-1176857770/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/312648-1176857770/instance-312648-1176857770.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-312648-1176857770 -o ROOT/results/node3/solver-312648-1176857770 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/312648-1176857770/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/312648-1176857770/instance-312648-1176857770.cnf            

META MD5SUM SOLVER= 53b58dfa80430416a78fe762713f980c
MD5SUM BENCH=  083d28c2adf10233f37f8b5a078c94a9

RANDOM SEED= 278063918

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.270
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		: 3000.270
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:       1621752 kB
Buffers:         35484 kB
Cached:         324096 kB
SwapCached:      23872 kB
Active:         119836 kB
Inactive:       271796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1621752 kB
SwapTotal:     4192956 kB
SwapFree:      4132108 kB
Dirty:            9564 kB
Writeback:           0 kB
Mapped:          30356 kB
Slab:            28060 kB
Committed_AS:  5187660 kB
PageTables:       1784 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= 66412 MiB

End job on node3 on Wed Apr 18 00:59:08 UTC 2007