Trace number 1733863

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
march_nn nnUNSAT 53.9938 54.0258

General information on the benchmark

NameCRAFTED/modcircuits/
owp_4vars_5gates.cnf
MD5SUMfe245e5f46bcc987fd412946151b9c92
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.06099
Satisfiable
(Un)Satisfiability was proved
Number of variables267
Number of clauses23747
Sum of the clauses size136362
Maximum clause length19
Minimum clause length1
Number of clauses of size 164
Number of clauses of size 2700
Number of clauses of size 31
Number of clauses of size 4563
Number of clauses of size 51926
Number of clauses of size over 520493

Solver Data 

1.19/1.26	c main():: ***                                   [ march satisfiability solver ]                                   ***
1.19/1.26	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
1.19/1.26	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
1.19/1.26	c main()::
1.19/1.26	c initFormula():: searching for DIMACS p-line....
1.19/1.26	c full lookahead due to high density!
1.19/1.26	c initFormula():: the DIMACS p-line indicates a CNF of 267 variables and 23747 clauses.
1.19/1.26	c parseCNF():: parsing....
1.19/1.26	c parseCNF():: the CNF contains 64 unary clauses.
1.19/1.26	c runParser():: parsing was successful, warming up engines...
1.19/1.26	c simplify_formula():: removed 0 tautological, 11710 satisfied and 240 duplicate clauses
1.19/1.26	c preprocessing fase I completed:: there are now 175 free variables and 11797 clauses.
1.19/1.26	c stat :: sign balance is biased by 99.294
1.19/1.26	c using k-SAT heuristics (size based diff)
1.19/1.26	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.19/1.26	c simplify_formula():: removed 0 tautological, 0 satisfied and 48974 duplicate clauses
1.19/1.26	c resolvent_look() :: found 54748 resolvents
1.19/1.26	c main():: clause / variable ratio: ( 66545 / 267 ) = 249.23
1.19/1.26	c longest clause has size 11
1.19/1.26	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.19/1.26	c number of free variables = 175
1.19/1.26	c dynamic_preselect_setsize :: off
1.19/1.26	c main():: all systems go!
1.19/1.26	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |********************************
c |****************************************************************| ( 0/999) NodeCount: 15
1.59/1.67	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/999) NodeCount: 98
2.39/2.48	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 396
4.39/4.40	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 1220
8.38/8.45	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 4/999) NodeCount: 2812
14.78/14.84	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 5170
23.08/23.10	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 7861
31.88/31.99	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 10200
40.27/40.36	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 11687
46.96/47.03	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/999) NodeCount: 12335
51.06/51.18	c |----------------------------------------------------------------|
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c |****************************************************************| (10/999) NodeCount: 12503
53.06/53.11	c |----------------------------------------------------------------|
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c |****************************************************************| (11/999) NodeCount: 12524
53.76/53.89	c |----------------------------------------------------------------|
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c |****************************************************************| (12/999) NodeCount: 12525
53.95/54.01	c |----------------------------------------------------------------|
c |
53.95/54.02	c
53.95/54.02	c main():: nodeCount: 12525
53.95/54.02	c main():: dead ends in main: 1335
53.95/54.02	c main():: lookAheadCount: 633110
53.95/54.02	c main():: unitResolveCount: 179211
53.95/54.02	c main():: time=53.990000
53.95/54.02	c main():: necessary_assignments: 5023
53.95/54.02	c main():: bin_sat: 0, bin_unsat 0
53.95/54.02	c main():: doublelook: #: 20377, succes #: 13951
53.95/54.02	c main():: doublelook: overall 3.373 of all possible doublelooks executed
53.95/54.02	c main():: doublelook: succesrate: 68.464, average DL_trigger: 340.614
53.95/54.02	s UNSATISFIABLE

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-1733863-1240793267/watcher-1733863-1240793267 -o /tmp/evaluation-result-1733863-1240793267/solver-1733863-1240793267 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1733863-1240793267.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 1.02 3/65 27097
/proc/meminfo: memFree=1804792/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=1020 CPUtime=0
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 128 0 0 0 0 0 0 0 20 0 1 0 107356559 1044480 113 1992294400 134512640 135197250 4294956224 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 255 113 58 167 0 86 0

[startup+0.0714131 s]
/proc/loadavg: 0.92 0.98 1.02 3/65 27097
/proc/meminfo: memFree=1804792/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=2708 CPUtime=0.06
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 569 0 0 0 6 0 0 0 20 0 1 0 107356559 2772992 392 1992294400 134512640 135197250 4294956224 18446744073709551615 134528032 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 677 392 67 167 0 508 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2708

[startup+0.101415 s]
/proc/loadavg: 0.92 0.98 1.02 3/65 27097
/proc/meminfo: memFree=1804792/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=2840 CPUtime=0.09
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 652 0 0 0 9 0 0 0 20 0 1 0 107356559 2908160 416 1992294400 134512640 135197250 4294956224 18446744073709551615 134560976 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 710 416 80 167 0 541 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2840

[startup+0.301436 s]
/proc/loadavg: 0.92 0.98 1.02 3/65 27097
/proc/meminfo: memFree=1804792/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=3384 CPUtime=0.29
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 862 0 0 0 29 0 0 0 22 0 1 0 107356559 3465216 559 1992294400 134512640 135197250 4294956224 18446744073709551615 134578107 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 846 559 83 167 0 677 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3384

[startup+0.70148 s]
/proc/loadavg: 0.92 0.98 1.02 3/65 27097
/proc/meminfo: memFree=1804792/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=4696 CPUtime=0.69
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 1166 0 0 0 69 0 0 0 25 0 1 0 107356559 4808704 863 1992294400 134512640 135197250 4294956224 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 1174 863 83 167 0 1005 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4696

[startup+1.50156 s]
/proc/loadavg: 0.92 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1800240/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=13500 CPUtime=1.49
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5066 0 0 0 147 2 0 0 25 0 1 0 107356559 13824000 2334 1992294400 134512640 135197250 4294956224 18446744073709551615 134603252 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3375 2334 90 167 0 3206 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13500

[startup+3.10173 s]
/proc/loadavg: 0.92 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1795056/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=13500 CPUtime=3.09
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5242 0 0 0 307 2 0 0 25 0 1 0 107356559 13824000 2510 1992294400 134512640 135197250 4294956224 18446744073709551615 134603255 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3375 2510 93 167 0 3206 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13500

[startup+6.30108 s]
/proc/loadavg: 0.93 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1794928/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=13500 CPUtime=6.29
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5247 0 0 0 627 2 0 0 25 0 1 0 107356559 13824000 2515 1992294400 134512640 135197250 4294956224 18446744073709551615 134603248 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3375 2515 93 167 0 3206 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 13500

[startup+12.7018 s]
/proc/loadavg: 0.93 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1794800/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=13500 CPUtime=12.68
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5247 0 0 0 1266 2 0 0 25 0 1 0 107356559 13824000 2515 1992294400 134512640 135197250 4294956224 18446744073709551615 134592962 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3375 2515 93 167 0 3206 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13500

[startup+25.5011 s]
/proc/loadavg: 0.95 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1794800/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=13724 CPUtime=25.48
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5253 0 0 0 2546 2 0 0 25 0 1 0 107356559 14053376 2521 1992294400 134512640 135197250 4294956224 18446744073709551615 134603172 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3431 2521 93 167 0 3262 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 13724

[startup+51.1019 s]
/proc/loadavg: 0.96 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1794544/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=14332 CPUtime=51.06
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5382 0 0 0 5104 2 0 0 25 0 1 0 107356559 14675968 2650 1992294400 134512640 135197250 4294956224 18446744073709551615 134603252 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3583 2650 93 167 0 3414 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 14332

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

[startup+52.701 s]
/proc/loadavg: 0.96 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1794224/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=14332 CPUtime=52.66
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5383 0 0 0 5264 2 0 0 25 0 1 0 107356559 14675968 2651 1992294400 134512640 135197250 4294956224 18446744073709551615 134603248 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3583 2651 93 167 0 3414 0
Current children cumulated CPU time (s) 52.66
Current children cumulated vsize (KiB) 14332

[startup+53.5011 s]
/proc/loadavg: 0.96 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1794224/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=14332 CPUtime=53.45
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5383 0 0 0 5343 2 0 0 25 0 1 0 107356559 14675968 2651 1992294400 134512640 135197250 4294956224 18446744073709551615 134603252 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3583 2651 93 167 0 3414 0
Current children cumulated CPU time (s) 53.45
Current children cumulated vsize (KiB) 14332

[startup+53.9052 s]
/proc/loadavg: 0.97 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1794224/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=14332 CPUtime=53.86
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5383 0 0 0 5384 2 0 0 25 0 1 0 107356559 14675968 2651 1992294400 134512640 135197250 4294956224 18446744073709551615 134605238 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3583 2651 93 167 0 3414 0
Current children cumulated CPU time (s) 53.86
Current children cumulated vsize (KiB) 14332

[startup+54.0012 s]
/proc/loadavg: 0.97 0.98 1.02 2/66 27098
/proc/meminfo: memFree=1794224/2055920 swapFree=4180748/4192956
[pid=27097] ppid=27095 vsize=14332 CPUtime=53.95
/proc/27097/stat : 27097 (march_nn) R 27095 27097 26695 0 -1 4194304 5383 0 0 0 5393 2 0 0 25 0 1 0 107356559 14675968 2651 1992294400 134512640 135197250 4294956224 18446744073709551615 134592756 0 0 4096 0 0 0 0 17 1 0 0
/proc/27097/statm: 3583 2651 93 167 0 3414 0
Current children cumulated CPU time (s) 53.95
Current children cumulated vsize (KiB) 14332

Child status: 20
Real time (s): 54.0258
CPU time (s): 53.9938
CPU user time (s): 53.9608
CPU system time (s): 0.032994
CPU usage (%): 99.9407
Max. virtual memory (cumulated for all children) (KiB): 14332

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 53.9608
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5384
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 540

runsolver used 0.073988 second user time and 0.143978 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-27 02:47:47
IDJOB=1733863
IDBENCH=71149
IDSOLVER=522
FILE ID=node81/1733863-1240793267
PBS_JOBID= 9187298
Free space on /tmp= 126392 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/CRAFTED/modcircuits/owp_4vars_5gates.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1733863-1240793267/watcher-1733863-1240793267 -o /tmp/evaluation-result-1733863-1240793267/solver-1733863-1240793267 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1733863-1240793267.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= fe245e5f46bcc987fd412946151b9c92
RANDOM SEED=1141843107

node81.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		: 3000.234
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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1805272 kB
Buffers:         35144 kB
Cached:         154232 kB
SwapCached:       5920 kB
Active:          38448 kB
Inactive:       159612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1805272 kB
SwapTotal:     4192956 kB
SwapFree:      4180748 kB
Dirty:            1380 kB
Writeback:           0 kB
Mapped:          13788 kB
Slab:            38272 kB
Committed_AS:   398020 kB
PageTables:       1452 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= 126388 MiB
End job on node81 at 2009-04-27 02:48:41