Trace number 3688615

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
Sat 4j PB Resolution 2.3.2 SnapshotOPT2 0.176972 0.164565

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_10_4_3.opb
MD5SUMa8fbcc01f657819297e89e0c04aa2cf2
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)52
Sum of products size (including duplicates)104
Number of different products52
Sum of products size104

Quality of the solution as a function of time


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

Solver Data 

0.03/0.09	c SAT4J: a SATisfiability library for Java (c) 2004-2012 Artois University and CNRS
0.03/0.09	c This is free software under the dual EPL/GNU LGPL licenses.
0.03/0.09	c See www.sat4j.org for details.
0.07/0.10	c version 2.3.2.v20120418
0.07/0.10	c java.runtime.name	Java(TM) SE Runtime Environment
0.07/0.10	c java.vm.name		Java HotSpot(TM) 64-Bit Server VM
0.07/0.10	c java.vm.version	19.1-b02
0.07/0.10	c java.vm.vendor	Sun Microsystems Inc.
0.07/0.10	c sun.arch.data.model	64
0.07/0.10	c java.version		1.6.0_24
0.07/0.10	c os.name		Linux
0.07/0.10	c os.version		2.6.32-71.29.1.el6.x86_64
0.07/0.10	c os.arch		amd64
0.07/0.10	c Free memory 		501472288
0.07/0.10	c Max memory 		7480803328
0.07/0.10	c Total memory 		504102912
0.07/0.10	c Number of processors 	8
0.07/0.12	c Pseudo Boolean Optimization by upper bound
0.07/0.12	c --- Begin Solver configuration ---
0.07/0.12	c org.sat4j.pb.constraints.CompetResolutionPBLongMixedWLClauseCardConstrDataStructure@4a913fe2
0.07/0.12	c Learn all clauses as in MiniSAT
0.07/0.12	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.07/0.12	c VSIDS like heuristics from MiniSAT using a heap lightweight component caching from RSAT taking into account the objective function
0.07/0.12	c No reason simplification
0.07/0.12	c Armin Biere (Picosat) restarts strategy
0.07/0.12	c Glucose learned constraints deletion strategy
0.07/0.12	c timeout=2147483s
0.07/0.12	c DB Simplification allowed=false
0.07/0.12	c c --- End Solver configuration ---
0.07/0.12	c solving HOME/instance-3688615-1337885850.opb
0.07/0.12	c reading problem ... 
0.07/0.15	c ... done. Wall clock time 0.023s.
0.07/0.15	c declared #vars     10
0.07/0.15	c internal #vars     62
0.07/0.15	c #constraints  114
0.07/0.15	c constraints type 
0.07/0.15	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 62
0.07/0.15	c org.sat4j.pb.constraints.pb.MaxWatchPbLong => 52
0.07/0.15	c 114 constraints processed.
0.07/0.15	c objective function length is 10 literals
0.07/0.15	c SATISFIABLE
0.07/0.15	c OPTIMIZING...
0.07/0.15	c Got one! Elapsed wall clock time (in seconds):0.027
0.07/0.15	o 3
0.07/0.15	c Got one! Elapsed wall clock time (in seconds):0.031
0.07/0.15	o 2
0.07/0.16	c starts		: 3
0.07/0.16	c conflicts		: 13
0.07/0.16	c decisions		: 26
0.07/0.16	c propagations		: 373
0.07/0.16	c inspects		: 1188
0.07/0.16	c shortcuts		: 0
0.07/0.16	c learnt literals	: 1
0.07/0.16	c learnt binary clauses	: 1
0.07/0.16	c learnt ternary clauses	: 0
0.07/0.16	c learnt constraints	: 11
0.07/0.16	c ignored constraints	: 0
0.07/0.16	c root simplifications	: 0
0.07/0.16	c removed literals (reason simplification)	: 0
0.07/0.16	c reason swapping (by a shorter reason)	: 0
0.07/0.16	c Calls to reduceDB	: 0
0.07/0.16	c number of reductions to clauses (during analyze)	: 0
0.07/0.16	c number of learned constraints concerned by reduction	: 0
0.07/0.16	c number of learning phase by resolution	: 0
0.07/0.16	c number of learning phase by cutting planes	: 0
0.07/0.16	c speed (assignments/second)	: 41444.444444444445
0.07/0.16	c non guided choices	0
0.07/0.16	c learnt constraints type 
0.07/0.16	c constraints type 
0.07/0.16	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 62
0.07/0.16	c org.sat4j.minisat.constraints.card.MinWatchCard => 0
0.07/0.16	c org.sat4j.pb.constraints.pb.MaxWatchPbLong => 52
0.07/0.16	c 114 constraints processed.
0.07/0.16	s OPTIMUM FOUND
0.07/0.16	v -x1 -x2 -x3 -x4 x5 x6 -x7 -x8 -x9 -x10 
0.07/0.16	c objective function=2
0.07/0.16	c Total wall clock time (in seconds): 0.036

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-3688615-1337885850/watcher-3688615-1337885850 -o /tmp/evaluation-result-3688615-1337885850/solver-3688615-1337885850 -C 1800 -W 1900 -M 15500 java -jar HOME/sat4j-pb.jar HOME/instance-3688615-1337885850.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: 1.92 1.99 1.99 3/194 22846
/proc/meminfo: memFree=29008272/32873844 swapFree=7620/7620
[pid=22846] ppid=22844 vsize=9292 CPUtime=0 cores=0,2,4,6
/proc/22846/stat : 22846 (java) D 22844 22846 21484 0 -1 4202496 249 0 0 0 0 0 0 0 20 0 1 0 254713515 9515008 183 33554432000 1073741824 1073778376 140733702030160 140733702021192 218213727925 0 0 4096 0 18446744072100609316 0 0 17 4 0 0 0 0 0
/proc/22846/statm: 2323 183 140 9 0 71 0

[startup+0.0569991 s]
/proc/loadavg: 1.92 1.99 1.99 3/194 22846
/proc/meminfo: memFree=29008272/32873844 swapFree=7620/7620
[pid=22846] ppid=22844 vsize=9225560 CPUtime=0.03 cores=0,2,4,6
/proc/22846/stat : 22846 (java) S 22844 22846 21484 0 -1 4202496 3112 0 1 0 3 0 0 0 20 0 13 0 254713515 9446973440 3298 33554432000 1073741824 1073778376 140735968897104 140735968888240 218217087037 0 0 0 16800971 18446744073709551615 0 0 17 0 0 0 0 0 0
/proc/22846/statm: 2306390 3298 1707 9 0 2297091 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 9225560

[startup+0.100197 s]
/proc/loadavg: 1.92 1.99 1.99 3/194 22846
/proc/meminfo: memFree=29008272/32873844 swapFree=7620/7620
[pid=22846] ppid=22844 vsize=9558412 CPUtime=0.07 cores=0,2,4,6
/proc/22846/stat : 22846 (java) S 22844 22846 21484 0 -1 4202496 4201 0 1 0 7 0 0 0 20 0 18 0 254713515 9787813888 4893 33554432000 1073741824 1073778376 140735968897104 140735968888240 218217087037 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0 0 0
/proc/22846/statm: 2389603 4893 2079 9 0 2380296 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 9558412

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

Child status: 30
Real time (s): 0.164565
CPU time (s): 0.176972
CPU user time (s): 0.152976
CPU system time (s): 0.023996
CPU usage (%): 107.539
Max. virtual memory (cumulated for all children) (KiB): 9558412

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.152976
system time used= 0.023996
maximum resident set size= 22752
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4560
page faults= 1
swaps= 0
block input operations= 240
block output operations= 64
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 201
involuntary context switches= 16

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node107 at 2012-05-24 20:57:30
IDJOB=3688615
IDBENCH=48127
IDSOLVER=2269
FILE ID=node107/3688615-1337885850
RUNJOBID= node107-1337871881-21500
PBS_JOBID= 14620097
Free space on /tmp= 71656 MiB

SOLVER NAME= Sat 4j PB Resolution 2.3.2 Snapshot
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_10_4_3.opb
COMMAND LINE= java -jar HOME/sat4j-pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3688615-1337885850/watcher-3688615-1337885850 -o /tmp/evaluation-result-3688615-1337885850/solver-3688615-1337885850 -C 1800 -W 1900 -M 15500  java -jar HOME/sat4j-pb.jar HOME/instance-3688615-1337885850.opb

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

MD5SUM BENCH= a8fbcc01f657819297e89e0c04aa2cf2
RANDOM SEED=671321512

node107.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		: 2666.760
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	: 5333.52
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		: 2666.760
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	: 5331.91
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		: 2666.760
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		: 2666.760
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		: 2666.760
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	: 5331.91
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		: 2666.760
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		: 2666.760
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	: 5331.86
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		: 2666.760
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	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873844 kB
MemFree:        29008272 kB
Buffers:          208960 kB
Cached:          2566276 kB
SwapCached:            0 kB
Active:           833260 kB
Inactive:        2265816 kB
Active(anon):     326424 kB
Inactive(anon):        0 kB
Active(file):     506836 kB
Inactive(file):  2265816 kB
Unevictable:        7620 kB
Mlocked:            7620 kB
SwapTotal:      67108856 kB
SwapFree:       67108856 kB
Dirty:               480 kB
Writeback:             0 kB
AnonPages:        331588 kB
Mapped:            22532 kB
Shmem:               200 kB
Slab:             626108 kB
SReclaimable:      68656 kB
SUnreclaim:       557452 kB
KernelStack:        1608 kB
PageTables:         4900 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545776 kB
Committed_AS:     825812 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346368 kB
VmallocChunk:   34341987984 kB
HardwareCorrupted:     0 kB
AnonHugePages:    303104 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= 71652 MiB
End job on node107 at 2012-05-24 20:57:30