Trace number 3736895

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 2.1.1OPT2 0.155976 0.142452

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_10_4_1.opb
MD5SUMf70b84a36f03e8071c6ec1558786823a
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
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 benchmark0.000999
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 variables10
Total number of constraints10
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 constraints10
Minimum length of a constraint5
Maximum length of a constraint8
Number of terms in the objective function 10
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 10
Number of bits of the sum of numbers in the objective function 4
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 10
Number of bits of the biggest sum of numbers4
Number of products (including duplicates)48
Sum of products size (including duplicates)96
Number of different products48
Sum of products size96

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.07	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.00/0.07	c This is free software under the dual EPL/GNU LGPL licenses.
0.00/0.07	c See www.sat4j.org for details.
0.00/0.08	c version 2.1.1.v20090612
0.00/0.08	c sun.arch.data.model	64
0.00/0.08	c java.version	1.6.0_24
0.00/0.08	c os.name	Linux
0.00/0.08	c os.version	2.6.32-71.29.1.el6.x86_64
0.00/0.08	c os.arch	amd64
0.00/0.08	c Free memory 1299577560
0.00/0.08	c Max memory 1306394624
0.00/0.08	c Total memory 1306394624
0.00/0.08	c Number of processors 8
0.10/0.10	c Pseudo Boolean Optimization
0.10/0.10	c --- Begin Solver configuration ---
0.10/0.10	c Stops conflict analysis at the first Unique Implication Point
0.10/0.10	c org.sat4j.pb.constraints.CompetResolutionPBMixedHTClauseCardConstrDataStructure@6abf2d5e
0.10/0.10	c Learn all clauses as in MiniSAT
0.10/0.10	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.10/0.10	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.10/0.10	c Expensive reason simplification
0.10/0.10	c MiniSAT restarts strategy
0.10/0.10	c Memory based learned constraints deletion strategy
0.10/0.10	c timeout=2147483s
0.10/0.10	c DB Simplification allowed=false
0.10/0.10	c --- End Solver configuration ---
0.10/0.10	c solving HOME/instance-3736895-1338761627.opb
0.10/0.10	c reading problem ... 
0.10/0.12	c ... done. Wall clock time 0.018s.
0.10/0.12	c #vars     58
0.10/0.12	c #constraints  106
0.10/0.12	c constraints type 
0.10/0.12	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 48
0.10/0.12	c org.sat4j.minisat.constraints.cnf.OriginalHTClause => 10
0.10/0.12	c org.sat4j.pb.constraints.pb.MaxWatchPb => 48
0.10/0.12	c SATISFIABLE
0.10/0.12	c OPTIMIZING...
0.10/0.12	c Got one! Elapsed wall clock time (in seconds):0.021
0.10/0.12	o 3
0.10/0.13	c Got one! Elapsed wall clock time (in seconds):0.029
0.10/0.13	o 2
0.10/0.14	c starts		: 3
0.10/0.14	c conflicts		: 15
0.10/0.14	c decisions		: 27
0.10/0.14	c propagations		: 432
0.10/0.14	c inspects		: 1432
0.10/0.14	c learnt literals	: 1
0.10/0.14	c learnt binary clauses	: 0
0.10/0.14	c learnt ternary clauses	: 3
0.10/0.14	c learnt clauses	: 13
0.10/0.14	c ignored clauses	: 0
0.10/0.14	c root simplifications	: 0
0.10/0.14	c removed literals (reason simplification)	: 7
0.10/0.14	c reason swapping (by a shorter reason)	: 0
0.10/0.14	c Calls to reduceDB	: 0
0.10/0.14	c speed (assignments/second)	: 144000.0
0.10/0.14	c non guided choices	0
0.10/0.14	c learnt constraints type 
0.10/0.14	c constraints type 
0.10/0.14	c org.sat4j.minisat.constraints.card.MinWatchCard => 0
0.10/0.14	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 48
0.10/0.14	c org.sat4j.minisat.constraints.cnf.OriginalHTClause => 10
0.10/0.14	c org.sat4j.pb.constraints.pb.MaxWatchPb => 48
0.10/0.14	s OPTIMUM FOUND
0.10/0.14	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 
0.10/0.14	c objective function=2
0.10/0.14	c Total wall clock time (in seconds): 0.033

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-3736895-1338761627/watcher-3736895-1338761627 -o /tmp/evaluation-result-3736895-1338761627/solver-3736895-1338761627 -C 1800 -W 1900 -M 15500 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-3736895-1338761627.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: 2.16 2.06 2.01 3/194 3722
/proc/meminfo: memFree=27533472/32873648 swapFree=7388/7388
[pid=3722] ppid=3720 vsize=9292 CPUtime=0 cores=1,3,5,7
/proc/3722/stat : 3722 (java6) D 3720 3722 959 0 -1 4202496 251 0 0 0 0 0 0 0 20 0 1 0 342287202 9515008 184 33554432000 1073741824 1073778376 140733862344480 140733862335704 212073082295 0 0 4096 0 18446744072100609316 0 0 17 5 0 0 0 0 0
/proc/3722/statm: 2323 184 142 9 0 71 0

[startup+0.105565 s]
/proc/loadavg: 2.16 2.06 2.01 3/194 3722
/proc/meminfo: memFree=27533472/32873648 swapFree=7388/7388
[pid=3722] ppid=3720 vsize=2648568 CPUtime=0.1 cores=1,3,5,7
/proc/3722/stat : 3722 (java) S 3720 3722 959 0 -1 4202496 4744 0 1 0 9 1 0 0 20 0 18 0 342287202 2712133632 5951 33554432000 1073741824 1073778376 140736515695120 140736515686256 212076625981 0 0 0 16800975 18446744073709551615 0 0 17 7 0 0 0 0 0
/proc/3722/statm: 662142 5951 2109 9 0 652835 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2648568

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

[startup+0.105565 s]
/proc/loadavg: 2.16 2.06 2.01 3/194 3722
/proc/meminfo: memFree=27533472/32873648 swapFree=7388/7388
[pid=3722] ppid=3720 vsize=2648568 CPUtime=0.1 cores=1,3,5,7
/proc/3722/stat : 3722 (java) S 3720 3722 959 0 -1 4202496 4744 0 1 0 9 1 0 0 20 0 18 0 342287202 2712133632 5951 33554432000 1073741824 1073778376 140736515695120 140736515686256 212076625981 0 0 0 16800975 18446744073709551615 0 0 17 7 0 0 0 0 0
/proc/3722/statm: 662142 5951 2109 9 0 652835 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2648568

Child status: 30
Real time (s): 0.142452
CPU time (s): 0.155976
CPU user time (s): 0.13098
CPU system time (s): 0.024996
CPU usage (%): 109.494
Max. virtual memory (cumulated for all children) (KiB): 2648568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.13098
system time used= 0.024996
maximum resident set size= 28380
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4887
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= 177
involuntary context switches= 11

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node148 at 2012-06-04 00:13:47
IDJOB=3736895
IDBENCH=48141
IDSOLVER=2322
FILE ID=node148/3736895-1338761627
RUNJOBID= node148-1338737846-978
PBS_JOBID= 14636767
Free space on /tmp= 71332 MiB

SOLVER NAME= PB09: SAT4J Pseudo Resolution 2.1.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_10_4_1.opb
COMMAND LINE= java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3736895-1338761627/watcher-3736895-1338761627 -o /tmp/evaluation-result-3736895-1338761627/solver-3736895-1338761627 -C 1800 -W 1900 -M 15500  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-3736895-1338761627.opb

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

MD5SUM BENCH= f70b84a36f03e8071c6ec1558786823a
RANDOM SEED=916355631

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:        27534016 kB
Buffers:          603660 kB
Cached:          2948028 kB
SwapCached:          628 kB
Active:          2301084 kB
Inactive:        2130720 kB
Active(anon):     869360 kB
Inactive(anon):    10660 kB
Active(file):    1431724 kB
Inactive(file):  2120060 kB
Unevictable:        7388 kB
Mlocked:            7388 kB
SwapTotal:      67108856 kB
SwapFree:       67107564 kB
Dirty:               260 kB
Writeback:             0 kB
AnonPages:        886280 kB
Mapped:            19136 kB
Shmem:                36 kB
Slab:             767644 kB
SReclaimable:     211640 kB
SUnreclaim:       556004 kB
KernelStack:        1600 kB
PageTables:         5584 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545680 kB
Committed_AS:    1518280 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346400 kB
VmallocChunk:   34341988052 kB
HardwareCorrupted:     0 kB
AnonHugePages:    845824 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= 71332 MiB
End job on node148 at 2012-06-04 00:13:47