Trace number 3734607

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 NameAnswerobjective functionCPU timeWall clock time
PB07: SAT4JPseudoResolution 2007-03-23OPT2 0.551915 0.316246

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/
logic_synthesis/normalized-m50_100_90_90.r.opb
MD5SUM4da887ca4bb57adc53b30ca1ea0acd93
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.003998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables100
Total number of constraints50
Number of constraints which are clauses50
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint90
Maximum length of a constraint90
Number of terms in the objective function 100
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 100
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 100
Number of bits of the biggest sum of numbers7
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.05/0.09	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.05/0.09	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.05/0.09	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.05/0.09	c no version file found!!!
0.05/0.09	c sun.arch.data.model	64
0.05/0.09	c java.version	1.6.0_24
0.05/0.09	c os.name	Linux
0.05/0.09	c os.version	2.6.32-71.29.1.el6.x86_64
0.05/0.09	c os.arch	amd64
0.05/0.09	c Free memory 1599470296
0.05/0.09	c Max memory 1607860224
0.05/0.09	c Total memory 1607860224
0.05/0.09	c Number of processors 8
0.06/0.11	--- Begin Solver configuration ---
0.06/0.11	c Stops conflict analysis at the first Unique Implication Point
0.06/0.11	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@18e2b22
0.06/0.11	c Learn all clauses as in MiniSAT
0.06/0.11	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.06/0.11	c VSIDS like heuristics from MiniSAT using a heap
0.06/0.11	c No reason simplification
0.06/0.11	c --- End Solver configuration ---
0.06/0.11	c solving HOME/instance-3734607-1338701227.opb
0.06/0.11	c reading problem ... 
0.24/0.23	c ... done. Wall clock time 0.115s.
0.24/0.23	c CPU time (experimental) 0.19s.
0.24/0.23	c #vars     100
0.24/0.23	c #constraints  50
0.24/0.23	c SATISFIABLE
0.24/0.23	c OPTIMIZING...
0.24/0.23	c Got one! Elapsed wall clock time (in seconds):0.121
0.24/0.23	o 2
0.52/0.30	c starts		: 2
0.52/0.30	c conflicts		: 121
0.52/0.30	c decisions		: 229
0.52/0.30	c propagations		: 4196
0.52/0.30	c inspects		: 3409
0.52/0.30	c learnt literals	: 1
0.52/0.30	c learnt binary clauses	: 1
0.52/0.30	c learnt ternary clauses	: 1
0.52/0.30	c learnt clauses	: 119
0.52/0.30	c root simplifications	: 0
0.52/0.30	c removed literals (reason simplification)	: 0
0.52/0.30	c reason swapping (by a shorter reason)	: 0
0.52/0.30	c Calls to reduceDB	: 0
0.52/0.30	c speed (decisions/second)	: 3754.098360655738
0.52/0.30	c non guided choices	0
0.52/0.30	s OPTIMUM FOUND
0.52/0.30	v -x1 x2 x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 
0.52/0.30	c objective function=2
0.52/0.30	c Total wall clock time (ms): 0.186

Verifier Data 

OK	2

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3734607-1338701227/watcher-3734607-1338701227 -o /tmp/evaluation-result-3734607-1338701227/solver-3734607-1338701227 -C 1800 -W 1900 -M 15500 java -server -Xms1600M -Xmx1600M -jar HOME/sat4jPseudoResolution.jar HOME/instance-3734607-1338701227.opb 

running on 4 cores: 1,3,5,7

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): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.04 2.00 3/196 11367
/proc/meminfo: memFree=28242312/32873844 swapFree=7620/7620
[pid=11367] ppid=11365 vsize=9292 CPUtime=0 cores=1,3,5,7
/proc/11367/stat : 11367 (java) D 11365 11367 6422 0 -1 4202496 249 0 0 0 0 0 0 0 20 0 1 0 336247506 9515008 183 33554432000 1073741824 1073778376 140735424425600 140735424416632 215124623029 0 0 4096 0 18446744072100748580 0 0 17 5 0 0 0 0 0
/proc/11367/statm: 2323 183 140 9 0 71 0

[startup+0.081087 s]
/proc/loadavg: 2.00 2.04 2.00 3/196 11367
/proc/meminfo: memFree=28242312/32873844 swapFree=7620/7620
[pid=11367] ppid=11365 vsize=2956804 CPUtime=0.05 cores=1,3,5,7
/proc/11367/stat : 11367 (java) S 11365 11367 6422 0 -1 4202496 4075 0 1 0 5 0 0 0 20 0 18 0 336247506 3027767296 5794 33554432000 1073741824 1073778376 140736647502656 140736647493792 215127982141 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0 0 0
/proc/11367/statm: 739201 5794 1769 9 0 729885 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2956804

[startup+0.100288 s]
/proc/loadavg: 2.00 2.04 2.00 3/196 11367
/proc/meminfo: memFree=28242312/32873844 swapFree=7620/7620
[pid=11367] ppid=11365 vsize=2957856 CPUtime=0.06 cores=1,3,5,7
/proc/11367/stat : 11367 (java) S 11365 11367 6422 0 -1 4202496 4142 0 1 0 6 0 0 0 20 0 18 0 336247506 3028844544 5860 33554432000 1073741824 1073778376 140736647502656 140736647493792 215127982141 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0 0 0
/proc/11367/statm: 739464 5860 1791 9 0 729885 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2957856

[startup+0.300196 s]
/proc/loadavg: 2.00 2.04 2.00 3/196 11367
/proc/meminfo: memFree=28242312/32873844 swapFree=7620/7620
[pid=11367] ppid=11365 vsize=3024420 CPUtime=0.52 cores=1,3,5,7
/proc/11367/stat : 11367 (java) S 11365 11367 6422 0 -1 4202496 9458 0 1 0 50 2 0 0 20 0 19 0 336247506 3097006080 10603 33554432000 1073741824 1073778376 140736647502656 140736647493792 215127982141 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0 0 0
/proc/11367/statm: 756105 10603 2259 9 0 746526 0
Current children cumulated CPU time (s) 0.52
Current children cumulated vsize (KiB) 3024420

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

Child status: 30
Real time (s): 0.316246
CPU time (s): 0.551915
CPU user time (s): 0.52192
CPU system time (s): 0.029995
CPU usage (%): 174.521
Max. virtual memory (cumulated for all children) (KiB): 3024420

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.52192
system time used= 0.029995
maximum resident set size= 44512
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9529
page faults= 1
swaps= 0
block input operations= 0
block output operations= 64
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 221
involuntary context switches= 18

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node135 at 2012-06-03 07:27:07
IDJOB=3734607
IDBENCH=2877
IDSOLVER=2319
FILE ID=node135/3734607-1338701227
RUNJOBID= node135-1338678628-6442
PBS_JOBID= 14636678
Free space on /tmp= 70976 MiB

SOLVER NAME= PB07: SAT4JPseudoResolution 2007-03-23
BENCH NAME= PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/logic_synthesis/normalized-m50_100_90_90.r.opb
COMMAND LINE= java -server -Xms1600M -Xmx1600M -jar HOME/sat4jPseudoResolution.jar BENCHNAME           
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3734607-1338701227/watcher-3734607-1338701227 -o /tmp/evaluation-result-3734607-1338701227/solver-3734607-1338701227 -C 1800 -W 1900 -M 15500  java -server -Xms1600M -Xmx1600M -jar HOME/sat4jPseudoResolution.jar HOME/instance-3734607-1338701227.opb           

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 4da887ca4bb57adc53b30ca1ea0acd93
RANDOM SEED=667355328

node135.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.820
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.64
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.820
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.57
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.820
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.820
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.820
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.54
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.820
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.820
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5238.35
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.820
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873844 kB
MemFree:        28243204 kB
Buffers:          356620 kB
Cached:          2483572 kB
SwapCached:         1672 kB
Active:          2082456 kB
Inactive:        1700520 kB
Active(anon):     933228 kB
Inactive(anon):    12036 kB
Active(file):    1149228 kB
Inactive(file):  1688484 kB
Unevictable:        7620 kB
Mlocked:            7620 kB
SwapTotal:      67108856 kB
SwapFree:       67105800 kB
Dirty:              3516 kB
Writeback:             0 kB
AnonPages:        953172 kB
Mapped:            18688 kB
Shmem:               132 kB
Slab:             701408 kB
SReclaimable:     143056 kB
SUnreclaim:       558352 kB
KernelStack:        1608 kB
PageTables:         6112 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545776 kB
Committed_AS:    1825820 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346376 kB
VmallocChunk:   34341987860 kB
HardwareCorrupted:     0 kB
AnonHugePages:    901120 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7872 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 70972 MiB
End job on node135 at 2012-06-03 07:27:08