Trace number 3733403

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
PB09: SAT4J Pseudo Resolution 2.1.1UNSAT 0.775881 0.455781

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-ship04s.opb
MD5SUM74b86287d15008d17990184d72b42ad1
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.775881
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables43740
Total number of constraints348
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints348
Minimum length of a constraint30
Maximum length of a constraint1980
Number of terms in the objective function 43740
Biggest coefficient in the objective function 1977295568896000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 276588440762806557
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 1977295568896000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 276588440762806557
Number of bits of the biggest sum of numbers58
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.01/0.07	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.01/0.07	c This is free software under the dual EPL/GNU LGPL licenses.
0.01/0.07	c See www.sat4j.org for details.
0.01/0.08	c version 2.1.1.v20090612
0.01/0.08	c sun.arch.data.model	64
0.01/0.08	c java.version	1.6.0_24
0.01/0.08	c os.name	Linux
0.01/0.08	c os.version	2.6.32-71.29.1.el6.x86_64
0.01/0.08	c os.arch	amd64
0.01/0.08	c Free memory 1299577560
0.01/0.08	c Max memory 1306394624
0.01/0.08	c Total memory 1306394624
0.01/0.08	c Number of processors 8
0.08/0.10	c Pseudo Boolean Optimization
0.08/0.10	c --- Begin Solver configuration ---
0.08/0.10	c Stops conflict analysis at the first Unique Implication Point
0.08/0.10	c org.sat4j.pb.constraints.CompetResolutionPBMixedHTClauseCardConstrDataStructure@2d3bad12
0.08/0.10	c Learn all clauses as in MiniSAT
0.08/0.10	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.08/0.10	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.08/0.10	c Expensive reason simplification
0.08/0.10	c MiniSAT restarts strategy
0.08/0.10	c Memory based learned constraints deletion strategy
0.08/0.10	c timeout=2147483s
0.08/0.10	c DB Simplification allowed=false
0.08/0.10	c --- End Solver configuration ---
0.08/0.10	c solving HOME/instance-3733403-1338748145.opb
0.08/0.10	c reading problem ... 
0.70/0.45	c (trivial inconsistency)
0.70/0.45	c starts		: 0
0.70/0.45	c conflicts		: 0
0.70/0.45	c decisions		: 0
0.70/0.45	c propagations		: 0
0.70/0.45	c inspects		: 0
0.70/0.45	c learnt literals	: 0
0.70/0.45	c learnt binary clauses	: 0
0.70/0.45	c learnt ternary clauses	: 0
0.70/0.45	c learnt clauses	: 0
0.70/0.45	c ignored clauses	: 0
0.70/0.45	c root simplifications	: 0
0.70/0.45	c removed literals (reason simplification)	: 0
0.70/0.45	c reason swapping (by a shorter reason)	: 0
0.70/0.45	c Calls to reduceDB	: 0
0.70/0.45	c speed (assignments/second)	: 0.0
0.70/0.45	c non guided choices	0
0.70/0.45	c learnt constraints type 
0.70/0.45	c constraints type 
0.70/0.45	c org.sat4j.pb.constraints.pb.MaxWatchPb => 201
0.70/0.45	s UNSATISFIABLE
0.70/0.45	c Total wall clock time (in seconds): 0.345

Verifier Data 

ERROR: no interpretation found !

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-3733403-1338748145/watcher-3733403-1338748145 -o /tmp/evaluation-result-3733403-1338748145/solver-3733403-1338748145 -C 1800 -W 1900 -M 15500 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-3733403-1338748145.opb 

running on 4 cores: 0,2,4,6

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: 2.03 2.03 2.00 2/194 2220
/proc/meminfo: memFree=27041684/32873648 swapFree=7388/7388
[pid=2220] ppid=2218 vsize=9292 CPUtime=0 cores=0,2,4,6
/proc/2220/stat : 2220 (java6) D 2218 2220 959 0 -1 4202496 251 0 0 0 0 0 0 0 20 0 1 0 340939055 9515008 185 33554432000 1073741824 1073778376 140734430285712 140734430276936 212073082295 0 0 4096 0 18446744072100609316 0 0 17 0 0 0 0 0 0
/proc/2220/statm: 2323 185 142 9 0 71 0

[startup+0.0302181 s]
/proc/loadavg: 2.03 2.03 2.00 2/194 2220
/proc/meminfo: memFree=27041684/32873648 swapFree=7388/7388
[pid=2220] ppid=2218 vsize=2106772 CPUtime=0.01 cores=0,2,4,6
/proc/2220/stat : 2220 (java) S 2218 2220 959 0 -1 4202496 3438 0 1 0 0 1 0 0 20 0 10 0 340939055 2157334528 4137 33554432000 1073741824 1073778376 140734277063808 140734277054944 212076625981 0 0 0 16784584 18446744073709551615 0 0 17 2 0 0 0 0 0
/proc/2220/statm: 526693 4137 1539 9 0 517394 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2106772

[startup+0.100299 s]
/proc/loadavg: 2.03 2.03 2.00 2/194 2220
/proc/meminfo: memFree=27041684/32873648 swapFree=7388/7388
[pid=2220] ppid=2218 vsize=2648568 CPUtime=0.08 cores=0,2,4,6
/proc/2220/stat : 2220 (java) S 2218 2220 959 0 -1 4202496 4695 0 1 0 7 1 0 0 20 0 18 0 340939055 2712133632 6413 33554432000 1073741824 1073778376 140734277063808 140734277054944 212076625981 0 0 0 16800975 18446744073709551615 0 0 17 2 0 0 0 0 0
/proc/2220/statm: 662142 6413 2109 9 0 652835 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2648568

[startup+0.300165 s]
/proc/loadavg: 2.03 2.03 2.00 2/194 2220
/proc/meminfo: memFree=27041684/32873648 swapFree=7388/7388
[pid=2220] ppid=2218 vsize=2648568 CPUtime=0.45 cores=0,2,4,6
/proc/2220/stat : 2220 (java) S 2218 2220 959 0 -1 4202496 5957 0 1 0 43 2 0 0 20 0 18 0 340939055 2712133632 13501 33554432000 1073741824 1073778376 140734277063808 140734277054944 212076625981 0 0 0 16800975 18446744073709551615 0 0 17 2 0 0 0 0 0
/proc/2220/statm: 662142 13501 2215 9 0 652835 0
Current children cumulated CPU time (s) 0.45
Current children cumulated vsize (KiB) 2648568

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

[startup+0.400229 s]
/proc/loadavg: 2.03 2.03 2.00 2/194 2220
/proc/meminfo: memFree=27041684/32873648 swapFree=7388/7388
[pid=2220] ppid=2218 vsize=2648568 CPUtime=0.7 cores=0,2,4,6
/proc/2220/stat : 2220 (java) S 2218 2220 959 0 -1 4202496 7837 0 1 0 67 3 0 0 20 0 18 0 340939055 2712133632 18101 33554432000 1073741824 1073778376 140734277063808 140734277054944 212076625981 0 0 0 16800975 18446744073709551615 0 0 17 2 0 0 0 0 0
/proc/2220/statm: 662142 18101 2220 9 0 652835 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2648568

Child status: 20
Real time (s): 0.455781
CPU time (s): 0.775881
CPU user time (s): 0.71989
CPU system time (s): 0.055991
CPU usage (%): 170.231
Max. virtual memory (cumulated for all children) (KiB): 2648568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.71989
system time used= 0.055991
maximum resident set size= 90972
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7884
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= 243
involuntary context switches= 13

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node148 at 2012-06-03 20:29:06
IDJOB=3733403
IDBENCH=2417
IDSOLVER=2322
FILE ID=node148/3733403-1338748145
RUNJOBID= node148-1338737846-977
PBS_JOBID= 14636767
Free space on /tmp= 71328 MiB

SOLVER NAME= PB09: SAT4J Pseudo Resolution 2.1.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ship04s.opb
COMMAND LINE= java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3733403-1338748145/watcher-3733403-1338748145 -o /tmp/evaluation-result-3733403-1338748145/solver-3733403-1338748145 -C 1800 -W 1900 -M 15500  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-3733403-1338748145.opb

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

MD5SUM BENCH= 74b86287d15008d17990184d72b42ad1
RANDOM SEED=1002905565

node148.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		: 2667.284
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	: 5334.56
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		: 2667.284
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	: 5331.94
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		: 2667.284
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	: 5331.92
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		: 2667.284
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	: 5331.91
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		: 2667.284
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	: 5331.90
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		: 2667.284
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	: 5331.91
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		: 2667.284
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	: 5331.90
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		: 2667.284
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	: 5331.90
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873648 kB
MemFree:        27042220 kB
Buffers:          601628 kB
Cached:          2951080 kB
SwapCached:          628 kB
Active:          2776956 kB
Inactive:        2129516 kB
Active(anon):    1343120 kB
Inactive(anon):    10660 kB
Active(file):    1433836 kB
Inactive(file):  2118856 kB
Unevictable:        7388 kB
Mlocked:            7388 kB
SwapTotal:      67108856 kB
SwapFree:       67107564 kB
Dirty:              2796 kB
Writeback:             0 kB
AnonPages:       1376464 kB
Mapped:            19136 kB
Shmem:                36 kB
Slab:             767340 kB
SReclaimable:     211404 kB
SUnreclaim:       555936 kB
KernelStack:        1600 kB
PageTables:         6388 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545680 kB
Committed_AS:    1518168 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346400 kB
VmallocChunk:   34341988052 kB
HardwareCorrupted:     0 kB
AnonHugePages:   1337344 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7680 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 71324 MiB
End job on node148 at 2012-06-03 20:29:06