Trace number 2098045

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 112v4 ACUNSAT 1.92771 1.93654

DiagnosticValue
CHECKS20
NODES0

General information on the benchmark

Namecsp/graphColoring/register/zeroin/
normalized-zeroin-i-3-10.xml
MD5SUMd6bd6fdc03914dc83fca9e6b4222e0ce
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 benchmark0.12298
Satisfiable
(Un)Satisfiability was proved
Number of variables206
Number of constraints3540
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3540
Global constraints used (with number of constraints)

Solver Data 

0.05/0.09	
0.05/0.09	Abscon 112 (May, 2008)
0.18/0.25	
0.18/0.25	   configuration
0.18/0.25	     name=mac.xml
0.18/0.29	   
0.18/0.29	   instance
0.18/0.29	     name=HOME/instance-2098045-1247414209.xml
0.29/0.32	   
0.29/0.32	   domains being loaded...
0.29/0.33	   
0.29/0.33	   variables being loaded...
0.29/0.39	     nbVariables=206  nbDomainTypes=1  minDomainSize=10  maxDomainSize=10  nbTotalValues=2060
0.29/0.39	       =>  wckTime=0.139  cpuTime=0.12  mem=8M867
0.29/0.39	   
0.29/0.39	   predicates being loaded...
0.39/0.45	   
0.39/0.45	   constraints being loaded...
1.60/1.63	     nbConstraints=3644  nbGlobalConstraints=104  nbDisconnectedVariables=49  nbConvertedConstraints=3540
1.60/1.63	     nbConvertConstraintsChecks=200  nbExtensionStructures=2  nbSharedExtensionStructures=3538  nbConflictsStructures=24
1.60/1.63	     nbSharedConflictsStructures=3538  nbSharedBinaryRepresentations=10  minDegree=1  maxDegree=143  minArity=2
1.60/1.63	     avgArity=2.02  maxArity=30  nbGenerators=100  nbFusions=23  symmetryWckTime=0.422  symmetryCpuTime=0.24
1.60/1.63	     nbCliques=4
1.60/1.63	       =>  wckTime=1.372  cpuTime=1.02  mem=34M321
1.70/1.74	   
1.70/1.74	   solver IterativeSystematicSolver being built... 
1.80/1.80	   
1.80/1.80	   INFO : Forward propagation technique limited 
1.80/1.88	       =>  wckTime=1.622  cpuTime=1.13  mem=23M627
1.80/1.88	   
1.80/1.88	   preprocessing
1.80/1.88	     nbConstraintChecks=20  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2  nbRemovedTuples=45
1.80/1.88	     detectedInconsistency=yes
1.80/1.88	       =>  wckTime=0.0030  cpuTime=0.01  mem=24M588
1.80/1.88	   
1.80/1.88	   global
1.80/1.88	     nbConstraintChecks=20  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
1.80/1.88	     solvingWckTime=0.0060  solvingCpuTime=0.01  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.80/1.88	     globalCpuTime=1.17
1.80/1.89	       =>  wckTime=1.63  cpuTime=1.14  mem=24M588
1.80/1.89	   
1.80/1.89	s UNSATISFIABLE
1.80/1.89	d NODES 0
1.80/1.89	d CHECKS 20
1.80/1.89	   
1.80/1.89	   totalWckTime=1.701  totalCpuTime=1.17

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2098045-1247414209/watcher-2098045-1247414209 -o /tmp/evaluation-result-2098045-1247414209/solver-2098045-1247414209 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2098045-1247414209.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 2.15 2.05 2.01 4/69 499
/proc/meminfo: memFree=1621136/2055920 swapFree=4192812/4192956
[pid=499] ppid=497 vsize=10676 CPUtime=0
/proc/499/stat : 499 (java) S 497 499 29987 0 -1 0 678 0 0 0 0 0 0 0 18 0 2 0 28481286 10932224 474 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/499/statm: 2669 474 207 9 0 1184 0
[pid=499/tid=500] ppid=497 vsize=10676 CPUtime=0
/proc/499/task/500/stat : 500 (java) R 497 499 29987 0 -1 64 0 0 0 0 0 0 0 0 19 0 2 0 28481287 10932224 474 996147200 134512640 134550932 4294955968 18446744073709551615 4657112 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.071072 s]
/proc/loadavg: 2.15 2.05 2.01 4/69 499
/proc/meminfo: memFree=1621136/2055920 swapFree=4192812/4192956
[pid=499] ppid=497 vsize=864148 CPUtime=0.05
/proc/499/stat : 499 (java) S 497 499 29987 0 -1 0 2974 0 1 0 4 1 0 0 18 0 9 0 28481286 884887552 2476 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/499/statm: 216037 2476 1164 9 0 210930 0
[pid=499/tid=500] ppid=497 vsize=864148 CPUtime=0.04
/proc/499/task/500/stat : 500 (java) R 497 499 29987 0 -1 64 2058 0 1 0 3 1 0 0 20 0 9 0 28481287 884887552 2476 996147200 134512640 134550932 4294955968 18446744073709551615 103778341 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 864148

[startup+0.101074 s]
/proc/loadavg: 2.15 2.05 2.01 4/69 499
/proc/meminfo: memFree=1621136/2055920 swapFree=4192812/4192956
[pid=499] ppid=497 vsize=865984 CPUtime=0.08
/proc/499/stat : 499 (java) S 497 499 29987 0 -1 0 3774 0 1 0 7 1 0 0 18 0 9 0 28481286 886767616 3230 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/499/statm: 216496 3230 1703 9 0 210981 0
[pid=499/tid=500] ppid=497 vsize=865984 CPUtime=0.07
/proc/499/task/500/stat : 500 (java) R 497 499 29987 0 -1 64 2856 0 1 0 6 1 0 0 18 0 9 0 28481287 886767616 3230 996147200 134512640 134550932 4294955968 18446744073709551615 4125977985 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.3011 s]
/proc/loadavg: 2.15 2.05 2.01 4/69 499
/proc/meminfo: memFree=1621136/2055920 swapFree=4192812/4192956
[pid=499] ppid=497 vsize=866380 CPUtime=0.29
/proc/499/stat : 499 (java) S 497 499 29987 0 -1 0 5906 0 1 0 26 3 0 0 18 0 9 0 28481286 887173120 5272 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/499/statm: 216595 5272 1983 9 0 211053 0
[pid=499/tid=500] ppid=497 vsize=866380 CPUtime=0.23
/proc/499/task/500/stat : 500 (java) R 497 499 29987 0 -1 64 4922 0 1 0 21 2 0 0 18 0 9 0 28481287 887173120 5272 996147200 134512640 134550932 4294955968 18446744073709551615 104264920 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380

[startup+0.701159 s]
/proc/loadavg: 2.15 2.05 2.01 4/69 499
/proc/meminfo: memFree=1621136/2055920 swapFree=4192812/4192956
[pid=499] ppid=497 vsize=867772 CPUtime=0.68
/proc/499/stat : 499 (java) S 497 499 29987 0 -1 0 8683 0 1 0 63 5 0 0 18 0 9 0 28481286 888598528 8037 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/499/statm: 216943 8037 2037 9 0 211379 0
[pid=499/tid=500] ppid=497 vsize=867772 CPUtime=0.51
/proc/499/task/500/stat : 500 (java) R 497 499 29987 0 -1 64 7311 0 1 0 47 4 0 0 20 0 9 0 28481287 888598528 8037 996147200 134512640 134550932 4294955968 18446744073709551615 102347968 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867772

[startup+1.50128 s]
/proc/loadavg: 2.15 2.05 2.01 2/76 522
/proc/meminfo: memFree=1607832/2055920 swapFree=4192812/4192956
[pid=499] ppid=497 vsize=868096 CPUtime=1.5
/proc/499/stat : 499 (java) S 497 499 29987 0 -1 0 13455 521 1 0 111 23 16 0 18 0 9 0 28481286 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/499/statm: 217024 12241 2045 9 0 211460 0
[pid=499/tid=500] ppid=497 vsize=868096 CPUtime=1.24
/proc/499/task/500/stat : 500 (java) R 497 499 29987 0 -1 64 11730 521 1 0 87 21 16 0 17 0 9 0 28481287 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4127066240 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=502] ppid=497 vsize=868096 CPUtime=0.16
/proc/499/task/502/stat : 502 (java) S 497 499 29987 0 -1 64 3 521 0 0 0 0 16 0 17 0 9 0 28481289 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=503] ppid=497 vsize=868096 CPUtime=0.16
/proc/499/task/503/stat : 503 (java) S 497 499 29987 0 -1 64 11 521 0 0 0 0 16 0 19 0 9 0 28481289 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=504] ppid=497 vsize=868096 CPUtime=0.16
/proc/499/task/504/stat : 504 (java) S 497 499 29987 0 -1 64 4 521 0 0 0 0 16 0 20 0 9 0 28481289 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=505] ppid=497 vsize=868096 CPUtime=0.16
/proc/499/task/505/stat : 505 (java) S 497 499 29987 0 -1 64 1 521 0 0 0 0 16 0 18 0 9 0 28481291 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=506] ppid=497 vsize=868096 CPUtime=0.38
/proc/499/task/506/stat : 506 (java) S 497 499 29987 0 -1 64 886 521 0 0 22 0 16 0 16 0 9 0 28481291 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=499/tid=507] ppid=497 vsize=868096 CPUtime=0.16
/proc/499/task/507/stat : 507 (java) S 497 499 29987 0 -1 64 1 521 0 0 0 0 16 0 19 0 9 0 28481291 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=508] ppid=497 vsize=868096 CPUtime=0.16
/proc/499/task/508/stat : 508 (java) S 497 499 29987 0 -1 64 14 521 0 0 0 0 16 0 15 0 9 0 28481291 888930304 12241 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 868096

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

[startup+1.90133 s]
/proc/loadavg: 2.15 2.05 2.01 2/76 522
/proc/meminfo: memFree=1607832/2055920 swapFree=4192812/4192956
[pid=499] ppid=497 vsize=868204 CPUtime=1.89
/proc/499/stat : 499 (java) S 497 499 29987 0 -1 0 23535 521 1 0 148 25 16 0 18 0 9 0 28481286 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/499/statm: 217051 14486 2659 9 0 211487 0
[pid=499/tid=500] ppid=497 vsize=868204 CPUtime=1.49
/proc/499/task/500/stat : 500 (java) S 497 499 29987 0 -1 64 16660 521 1 0 111 22 16 0 17 0 9 0 28481287 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=502] ppid=497 vsize=868204 CPUtime=0.26
/proc/499/task/502/stat : 502 (java) S 497 499 29987 0 -1 64 5096 521 0 0 9 1 16 0 16 0 9 0 28481289 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=503] ppid=497 vsize=868204 CPUtime=0.16
/proc/499/task/503/stat : 503 (java) S 497 499 29987 0 -1 64 18 521 0 0 0 0 16 0 16 0 9 0 28481289 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=499/tid=504] ppid=497 vsize=868204 CPUtime=0.16
/proc/499/task/504/stat : 504 (java) S 497 499 29987 0 -1 64 10 521 0 0 0 0 16 0 16 0 9 0 28481289 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=499/tid=505] ppid=497 vsize=868204 CPUtime=0.16
/proc/499/task/505/stat : 505 (java) S 497 499 29987 0 -1 64 1 521 0 0 0 0 16 0 18 0 9 0 28481291 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=506] ppid=497 vsize=868204 CPUtime=0.43
/proc/499/task/506/stat : 506 (java) S 497 499 29987 0 -1 64 930 521 0 0 27 0 16 0 15 0 9 0 28481291 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=507] ppid=497 vsize=868204 CPUtime=0.16
/proc/499/task/507/stat : 507 (java) S 497 499 29987 0 -1 64 1 521 0 0 0 0 16 0 19 0 9 0 28481291 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=499/tid=508] ppid=497 vsize=868204 CPUtime=0.16
/proc/499/task/508/stat : 508 (java) S 497 499 29987 0 -1 64 14 521 0 0 0 0 16 0 15 0 9 0 28481291 889040896 14486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 868204

Child status: 0
Real time (s): 1.93654
CPU time (s): 1.92771
CPU user time (s): 1.65275
CPU system time (s): 0.274958
CPU usage (%): 99.5439
Max. virtual memory (cumulated for all children) (KiB): 868240

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.65275
system time used= 0.274958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24082
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= 1093
involuntary context switches= 1092

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node49 at 2009-07-12 17:56:49
IDJOB=2098045
IDBENCH=58101
IDSOLVER=773
FILE ID=node49/2098045-1247414209
PBS_JOBID= 9510547
Free space on /tmp= 66412 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/graphColoring/register/zeroin/normalized-zeroin-i-3-10.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2098045-1247414209/watcher-2098045-1247414209 -o /tmp/evaluation-result-2098045-1247414209/solver-2098045-1247414209 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2098045-1247414209.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= d6bd6fdc03914dc83fca9e6b4222e0ce
RANDOM SEED=370822983

node49.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.232
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		: 3000.232
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:       1621616 kB
Buffers:         79388 kB
Cached:         254832 kB
SwapCached:          0 kB
Active:         203040 kB
Inactive:       155480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1621616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3916 kB
Writeback:           0 kB
Mapped:          34624 kB
Slab:            61124 kB
Committed_AS:   199508 kB
PageTables:       1716 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66420 MiB
End job on node49 at 2009-07-12 17:56:51