Trace number 198301

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
Abscon 109 ACUNSAT 2.50662 2.63746

DiagnosticValue
CHECKS1772409
NODES84789

General information on the benchmark

Namepigeons/
pigeons-11.xml
MD5SUM95945c013f6dac924e2f43d6bd15fc55
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.15867
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables11
Number of constraints55
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension55
Global constraints used (with number of constraints)

Solver Data (download as text)

0.38	   
0.38	Abscon 109 (November, 2006)
0.38	   
0.38	   configuration
0.38	     name=mac.xml
0.41	   
0.41	   instance
0.41	     name=/tmp/evaluation/198301-1168071232/unknown.xml
0.44	   
0.44	   domains being loaded...
0.44	   
0.44	   variables being loaded...
0.47	     nbVariables=11  nbDomainTypes=1  minDomainSize=10  maxDomainSize=10
0.47	       =>  wckTime=0.094  cpuTime=0.09  mem=6M951
0.47	   
0.47	   predicates being loaded...
0.48	   
0.48	   constraints being loaded...
0.54	     nbConstraints=55  nbConvertedConstraints=55  nbConvertConstraintsChecks=100  nbExtensionStructures=1
0.54	     nbSharedExtensionStructures=54  nbConflictsStructures=1  nbSharedConflictsStructures=54
0.54	     nbSharedBinaryRepresentations=10  maxDegree=10  maxArity=2
0.54	       =>  wckTime=0.163  cpuTime=0.14  mem=7M959
0.57	   
0.57	   solver IterativeSystematicSolver being built... 
0.73	       =>  wckTime=0.353  cpuTime=0.26  mem=13M294
0.73	   
0.73	   preprocessing
0.73	     nbConstraintChecks=0  nbPropagations=11  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.73	     detectedInconsistency=no
0.73	       =>  wckTime=0.0010  cpuTime=0.0  mem=13M294
0.76	   
0.76	   search
0.76	     run=0  nbConstraintChecks=664  nbPropagations=163  nbRevisions=186  nbUselessRevisions=24  nbAssignments=26
0.76	     nbFailedAssignments=10  nbBacktracks=10  nbVisitedNodes=47  nbRestartNogoods=0  mapSize=10  nbInferences=0
0.76	     nbTooLargeKeys=0
0.76	       =>  wckTime=0.024  cpuTime=0.02  mem=13M294
0.77	   
0.77	   search
0.77	     run=1  nbConstraintChecks=1453  nbPropagations=520  nbRevisions=610  nbUselessRevisions=79  nbAssignments=62
0.77	     nbFailedAssignments=24  nbBacktracks=25  nbVisitedNodes=111  nbRestartNogoods=4  mapSize=25  nbInferences=0
0.77	     nbTooLargeKeys=0
0.77	       =>  wckTime=0.035  cpuTime=0.03  mem=13M294
0.78	   
0.78	   search
0.78	     run=2  nbConstraintChecks=2409  nbPropagations=1135  nbRevisions=1345  nbUselessRevisions=170  nbAssignments=111
0.78	     nbFailedAssignments=44  nbBacktracks=47  nbVisitedNodes=200  nbRestartNogoods=7  mapSize=47  nbInferences=0
0.78	     nbTooLargeKeys=0
0.78	       =>  wckTime=0.046  cpuTime=0.04  mem=13M294
0.79	   
0.79	   search
0.79	     run=3  nbConstraintChecks=3497  nbPropagations=2070  nbRevisions=2433  nbUselessRevisions=285  nbAssignments=176
0.79	     nbFailedAssignments=69  nbBacktracks=80  nbVisitedNodes=315  nbRestartNogoods=12  mapSize=80  nbInferences=0
0.79	     nbTooLargeKeys=0
0.79	       =>  wckTime=0.06  cpuTime=0.05  mem=13M294
0.81	   
0.81	   search
0.81	     run=4  nbConstraintChecks=4833  nbPropagations=3447  nbRevisions=3962  nbUselessRevisions=409  nbAssignments=270
0.81	     nbFailedAssignments=103  nbBacktracks=130  nbVisitedNodes=481  nbRestartNogoods=15  mapSize=130  nbInferences=4
0.81	     nbTooLargeKeys=0
0.81	       =>  wckTime=0.073  cpuTime=0.06  mem=13M294
0.82	   
0.82	   search
0.82	     run=5  nbConstraintChecks=6769  nbPropagations=5501  nbRevisions=6131  nbUselessRevisions=537  nbAssignments=415
0.82	     nbFailedAssignments=149  nbBacktracks=205  nbVisitedNodes=735  nbRestartNogoods=19  mapSize=205  nbInferences=21
0.82	     nbTooLargeKeys=0
0.82	       =>  wckTime=0.09  cpuTime=0.07  mem=13M294
0.84	   
0.84	   search
0.84	     run=6  nbConstraintChecks=9493  nbPropagations=8552  nbRevisions=9242  nbUselessRevisions=669  nbAssignments=631
0.84	     nbFailedAssignments=219  nbBacktracks=318  nbVisitedNodes=1117  nbRestartNogoods=23  mapSize=318  nbInferences=47
0.84	     nbTooLargeKeys=0
0.84	       =>  wckTime=0.107  cpuTime=0.08  mem=13M294
0.86	   
0.86	   search
0.86	     run=7  nbConstraintChecks=13532  nbPropagations=13128  nbRevisions=13782  nbUselessRevisions=802  nbAssignments=961
0.86	     nbFailedAssignments=326  nbBacktracks=489  nbVisitedNodes=1707  nbRestartNogoods=29  mapSize=489  nbInferences=93
0.86	     nbTooLargeKeys=0
0.86	       =>  wckTime=0.128  cpuTime=0.09  mem=13M294
0.89	   
0.89	   search
0.89	     run=8  nbConstraintChecks=19908  nbPropagations=20097  nbRevisions=20501  nbUselessRevisions=943
0.89	     nbAssignments=1475  nbFailedAssignments=470  nbBacktracks=745  nbVisitedNodes=2618  nbRestartNogoods=37
0.89	     mapSize=745  nbInferences=202  nbTooLargeKeys=0
0.89	       =>  wckTime=0.153  cpuTime=0.11  mem=13M294
0.93	   
0.93	   search
0.93	     run=9  nbConstraintChecks=31133  nbPropagations=31279  nbRevisions=30803  nbUselessRevisions=1085
0.93	     nbAssignments=2357  nbFailedAssignments=650  nbBacktracks=1129  nbVisitedNodes=4173  nbRestartNogoods=44
0.93	     mapSize=1129  nbInferences=515  nbTooLargeKeys=0
0.93	       =>  wckTime=0.193  cpuTime=0.13  mem=14M269
0.96	   
0.96	   search
0.96	     run=10  nbConstraintChecks=48731  nbPropagations=49012  nbRevisions=46598  nbUselessRevisions=1236
0.96	     nbAssignments=3718  nbFailedAssignments=899  nbBacktracks=1706  nbVisitedNodes=6564  nbRestartNogoods=48
0.96	     mapSize=1706  nbInferences=1047  nbTooLargeKeys=0
0.96	       =>  wckTime=0.225  cpuTime=0.17  mem=14M269
0.99	   
0.99	   search
0.99	     run=11  nbConstraintChecks=77518  nbPropagations=77355  nbRevisions=71084  nbUselessRevisions=1387
0.99	     nbAssignments=5886  nbFailedAssignments=1241  nbBacktracks=2570  nbVisitedNodes=10374  nbRestartNogoods=52
0.99	     mapSize=2570  nbInferences=2005  nbTooLargeKeys=0
0.99	       =>  wckTime=0.261  cpuTime=0.2  mem=14M269
1.06	   
1.06	   search
1.06	     run=12  nbConstraintChecks=126700  nbPropagations=123029  nbRevisions=109590  nbUselessRevisions=1539
1.06	     nbAssignments=9320  nbFailedAssignments=1719  nbBacktracks=3867  nbVisitedNodes=16417  nbRestartNogoods=63
1.06	     mapSize=3867  nbInferences=3658  nbTooLargeKeys=0
1.06	       =>  wckTime=0.324  cpuTime=0.26  mem=14M269
1.21	   
1.21	   search
1.21	     run=13  nbConstraintChecks=281492  nbPropagations=212593  nbRevisions=181530  nbUselessRevisions=1691
1.21	     nbAssignments=16727  nbFailedAssignments=1951  nbBacktracks=5813  nbVisitedNodes=29515  nbRestartNogoods=75
1.21	     mapSize=5813  nbInferences=8885  nbTooLargeKeys=0
1.21	       =>  wckTime=0.479  cpuTime=0.41  mem=14M269
1.42	   
1.42	   search
1.42	     run=14  nbConstraintChecks=489746  nbPropagations=362127  nbRevisions=299716  nbUselessRevisions=1853
1.42	     nbAssignments=27059  nbFailedAssignments=2483  nbBacktracks=8733  nbVisitedNodes=47781  nbRestartNogoods=85
1.42	     mapSize=8731  nbInferences=15759  nbTooLargeKeys=0
1.42	       =>  wckTime=0.687  cpuTime=0.62  mem=15M244
1.72	   
1.72	   search
1.72	     run=15  nbConstraintChecks=790643  nbPropagations=600863  nbRevisions=486281  nbUselessRevisions=2158
1.72	     nbAssignments=42701  nbFailedAssignments=3149  nbBacktracks=13111  nbVisitedNodes=75277  nbRestartNogoods=99
1.72	     mapSize=13105  nbInferences=26351  nbTooLargeKeys=0
1.72	       =>  wckTime=0.988  cpuTime=0.92  mem=15M244
2.22	   
2.22	   search
2.22	     run=16  nbConstraintChecks=1343101  nbPropagations=989258  nbRevisions=789923  nbUselessRevisions=3717
2.22	     nbAssignments=67490  nbFailedAssignments=4032  nbBacktracks=19679  nbVisitedNodes=118831  nbRestartNogoods=112
2.22	     mapSize=19661  nbInferences=43684  nbTooLargeKeys=0
2.22	       =>  wckTime=1.484  cpuTime=1.41  mem=16M219
2.59	   
2.59	   search
2.59	     run=17  nbConstraintChecks=1772409  nbPropagations=1486324  nbRevisions=1179973  nbUselessRevisions=6789
2.59	     nbAssignments=84789  nbFailedAssignments=4460  nbBacktracks=24231  nbVisitedNodes=149176  nbRestartNogoods=125
2.59	     mapSize=24170  nbInferences=56004  nbTooLargeKeys=0
2.59	       =>  wckTime=1.854  cpuTime=1.78  mem=17M195
2.59	   
2.59	   global
2.59	     nbConstraintChecks=1772409  nbPropagations=1486335  nbRevisions=1179973  nbUselessRevisions=6789
2.59	     nbRestartNogoods=125  solvingWckTime=1.855  solvingCpuTime=1.78  expiredTime=no  totalExploration=yes
2.59	     nbFoundSolutions=0  globalCpuTime=2.09
2.59	       =>  wckTime=2.21  cpuTime=2.04  mem=17M195
2.59	   
2.59	s UNSATISFIABLE
2.59	d NODES 84789
2.59	d CHECKS 1772409
2.59	   
2.59	   totalWckTime=2.29  totalCpuTime=2.09

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-198301-1168071232 -o ROOT/results/node18/solver-198301-1168071232 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/198301-1168071232/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.49 1.82 1.86 4/93 20745
/proc/meminfo: memFree=1140760/2055920 swapFree=4192812/4192956
[pid=20744] ppid=20742 vsize=18540 CPUtime=0
/proc/20744/stat : 20744 (runsolver) R 20742 20744 18868 0 -1 4194368 17 0 0 0 0 0 0 0 20 0 1 0 155518150 18984960 279 18446744073709551615 4194304 4267372 548682068864 18446744073709551615 227848809767 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/20744/statm: 4635 279 244 17 0 2626 0

[startup+0.109895 s]
/proc/loadavg: 1.49 1.82 1.86 4/93 20745
/proc/meminfo: memFree=1140760/2055920 swapFree=4192812/4192956
[pid=20744] ppid=20742 vsize=912588 CPUtime=0.06
/proc/20744/stat : 20744 (java) D 20742 20744 18868 0 -1 0 2750 0 1 0 5 1 0 0 20 0 8 0 155518150 934490112 2496 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4294960144 0 2147483391 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/20744/statm: 228147 2496 1382 14 0 215091 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 912588

[startup+0.517937 s]
/proc/loadavg: 1.49 1.82 1.86 4/93 20745
/proc/meminfo: memFree=1140760/2055920 swapFree=4192812/4192956
[pid=20744] ppid=20742 vsize=915328 CPUtime=0.42
/proc/20744/stat : 20744 (java) R 20742 20744 18868 0 -1 0 6249 0 1 0 39 3 0 0 19 0 8 0 155518150 937295872 5988 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4152160119 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/20744/statm: 228832 5988 2150 14 0 215302 0
Current children cumulated CPU time (s) 0.42
Current children cumulated vsize (KiB) 915328

[startup+1.34001 s]
/proc/loadavg: 1.49 1.82 1.86 3/100 20752
/proc/meminfo: memFree=1117792/2055920 swapFree=4192812/4192956
[pid=20744] ppid=20742 vsize=915460 CPUtime=1.24
/proc/20744/stat : 20744 (java) R 20742 20744 18868 0 -1 0 8555 0 1 0 119 5 0 0 25 0 8 0 155518150 937431040 8293 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4072918510 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/20744/statm: 228865 8293 2532 14 0 215335 0
[pid=20744/tid=20746] ppid=20742 vsize=915460 CPUtime=0.02
/proc/20744/task/20746/stat : 20746 (java) S 20742 20744 18868 0 -1 64 118 0 0 0 2 0 0 0 16 0 8 0 155518154 937431040 8293 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=20744/tid=20747] ppid=20742 vsize=915460 CPUtime=0
/proc/20744/task/20747/stat : 20747 (java) S 20742 20744 18868 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 155518154 937431040 8293 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=20744/tid=20748] ppid=20742 vsize=915460 CPUtime=0
/proc/20744/task/20748/stat : 20748 (java) S 20742 20744 18868 0 -1 64 5 0 0 0 0 0 0 0 15 0 8 0 155518154 937431040 8293 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=20744/tid=20749] ppid=20742 vsize=915460 CPUtime=0
/proc/20744/task/20749/stat : 20749 (java) S 20742 20744 18868 0 -1 64 1 0 0 0 0 0 0 0 18 0 8 0 155518157 937431040 8293 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=20744/tid=20750] ppid=20742 vsize=915460 CPUtime=0.17
/proc/20744/task/20750/stat : 20750 (java) S 20742 20744 18868 0 -1 64 357 0 0 0 17 0 0 0 15 0 8 0 155518157 937431040 8293 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=20744/tid=20751] ppid=20742 vsize=915460 CPUtime=0
/proc/20744/task/20751/stat : 20751 (java) S 20742 20744 18868 0 -1 64 1 0 0 0 0 0 0 0 19 0 8 0 155518157 937431040 8293 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=20744/tid=20752] ppid=20742 vsize=915460 CPUtime=0
/proc/20744/task/20752/stat : 20752 (java) S 20742 20744 18868 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 155518158 937431040 8293 18446744073709551615 134512640 134570532 4294956384 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.24
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 2.63746
CPU time (s): 2.50662
CPU user time (s): 2.43763
CPU system time (s): 0.068989
CPU usage (%): 95.0391
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.43763
system time used= 0.068989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9272
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 946
involuntary context switches= 1271

runsolver used 0.006998 s user time and 0.013997 s system time

The end

Launcher Data (download as text)

Begin job on node18 on Sat Jan  6 08:13:55 UTC 2007


IDJOB= 198301
IDBENCH= 3547
FILE ID= node18/198301-1168071232

PBS_JOBID= 3475422

Free space on /tmp= 66286 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pigeons/pigeons-11.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/198301-1168071232/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-198301-1168071232 -o ROOT/results/node18/solver-198301-1168071232 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/198301-1168071232/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  95945c013f6dac924e2f43d6bd15fc55

RANDOM SEED= 426840565

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.231
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		: 3000.231
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:       1141176 kB
Buffers:         68836 kB
Cached:         655432 kB
SwapCached:          0 kB
Active:         431920 kB
Inactive:       384508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1141176 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1804 kB
Writeback:           0 kB
Mapped:         121228 kB
Slab:            83232 kB
Committed_AS:  4749140 kB
PageTables:       2192 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= 66286 MiB



End job on node18 on Sat Jan  6 08:13:59 UTC 2007