Trace number 427264

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, and are wall clock time (not CPU 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
DEWSATZ 2007-04-26 (fixed)SAT 174.189 174.295

General information on the benchmark

Namerandom/OnTreshold/7SAT/v50/
unif-k7-r89-v50-c4450-S228456758-12.SAT.shuffled.cnf
MD5SUM3b624125de84e4dd806ca3ec600430c5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.025995
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54450

Solver Data (download as text)

174.09/174.29	c   
174.09/174.29	c =====================================================================================================
174.09/174.29	c Copyright (c) 2004 National ICT Australia Limited (NICTA) and applicable third parties.
174.09/174.29	c For details, see the Australian Public Licence B (OZPLB) V1-1, under which this software is licensed.
174.09/174.29	c The OZPLB text is embedded in the source code for this software.
174.09/174.29	c =====================================================================================================
174.09/174.29	c   
174.09/174.29	c solution of dewSatz.c 
174.09/174.29	s SATISFIABLE
174.09/174.29	v 1 2 3 4 -5 6 7 -8 9 -10 11 12 13 -14 -15 -16 -17 18 -19 20 -21 22 -23 24 -25 26 27 -28 -29 -30 -31 -32 33 34 -35 36 -37 38 -39 40 41 -42 43 44 -45 -46 47 48 -49 50 0 
174.09/174.29	c dewSatz /tmp/evaluation/427264-1177634342/instance-427264-1177634342.cnf 1 174.190  2.850 170879 170543 336 170543 170894 24906340 867716 398016 117993 4450 4450 50 0 50

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node41/watcher-427264-1177634342 -o ROOT/results/node41/solver-427264-1177634342 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/427264-1177634342/dewSatz_fixed /tmp/evaluation/427264-1177634342/instance-427264-1177634342.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): 2400 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: 1.07 1.05 1.00 2/77 23638
/proc/meminfo: memFree=1725128/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690016 CPUtime=0
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 91 0 0 0 0 0 0 0 19 0 1 0 211346091 706576384 76 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134574795 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172504 76 39 100 0 172401 0

[startup+0.0333171 s]
/proc/loadavg: 1.07 1.05 1.00 2/77 23638
/proc/meminfo: memFree=1725128/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690420 CPUtime=0.02
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 6974 0 0 0 2 0 0 0 19 0 1 0 211346091 706990080 174 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134520528 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172605 174 40 100 0 172502 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 690420

[startup+0.102322 s]
/proc/loadavg: 1.07 1.05 1.00 2/77 23638
/proc/meminfo: memFree=1725128/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690420 CPUtime=0.09
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 9965 0 0 0 9 0 0 0 20 0 1 0 211346091 706990080 182 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134515390 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172605 182 40 100 0 172502 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 690420

[startup+0.301338 s]
/proc/loadavg: 1.07 1.05 1.00 2/77 23638
/proc/meminfo: memFree=1725128/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690420 CPUtime=0.29
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 9975 0 0 0 29 0 0 0 22 0 1 0 211346091 706990080 192 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134515332 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172605 192 40 100 0 172502 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 690420

[startup+0.702373 s]
/proc/loadavg: 1.07 1.05 1.00 2/77 23638
/proc/meminfo: memFree=1725128/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690560 CPUtime=0.69
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 9986 0 0 0 69 0 0 0 25 0 1 0 211346091 707133440 203 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134517824 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172640 203 40 100 0 172537 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 690560

[startup+1.50144 s]
/proc/loadavg: 1.06 1.05 1.00 2/78 23639
/proc/meminfo: memFree=1724288/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690560 CPUtime=1.49
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10001 0 0 0 149 0 0 0 25 0 1 0 211346091 707133440 218 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134517303 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172640 218 40 100 0 172537 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 690560

[startup+3.10158 s]
/proc/loadavg: 1.06 1.05 1.00 2/78 23639
/proc/meminfo: memFree=1724096/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=3.09
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10082 0 0 0 308 1 0 0 25 0 1 0 211346091 707276800 299 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134536449 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 299 43 100 0 172572 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 690700

[startup+6.30186 s]
/proc/loadavg: 1.06 1.05 1.00 2/78 23639
/proc/meminfo: memFree=1723664/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=6.29
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10082 0 0 0 628 1 0 0 25 0 1 0 211346091 707276800 299 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134531687 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 299 43 100 0 172572 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 690700

[startup+12.7014 s]
/proc/loadavg: 1.05 1.05 1.00 2/78 23639
/proc/meminfo: memFree=1723536/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=12.69
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 1268 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134533320 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 690700

[startup+25.5015 s]
/proc/loadavg: 1.04 1.04 1.00 2/78 23639
/proc/meminfo: memFree=1723536/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=25.47
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 2546 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134523429 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 690700

[startup+51.1018 s]
/proc/loadavg: 1.03 1.04 1.00 2/78 23639
/proc/meminfo: memFree=1723664/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=51.07
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 5106 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134536360 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 690700

[startup+102.306 s]
/proc/loadavg: 1.01 1.03 1.00 2/78 23641
/proc/meminfo: memFree=1723536/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=102.24
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 10223 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134531785 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 102.24
Current children cumulated vsize (KiB) 690700

[startup+162.301 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 23641
/proc/meminfo: memFree=1723472/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=162.19
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 16218 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134535190 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 162.19
Current children cumulated vsize (KiB) 690700

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

[startup+166.302 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 23641
/proc/meminfo: memFree=1723472/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=166.19
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 16618 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134535022 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 166.19
Current children cumulated vsize (KiB) 690700

[startup+169.501 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 23641
/proc/meminfo: memFree=1723472/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=169.39
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 16938 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134536444 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 169.39
Current children cumulated vsize (KiB) 690700

[startup+172.705 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 23641
/proc/meminfo: memFree=1723472/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=172.59
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 17258 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134533223 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 172.59
Current children cumulated vsize (KiB) 690700

[startup+173.501 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 23641
/proc/meminfo: memFree=1723472/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=173.39
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 17338 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134532541 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 173.39
Current children cumulated vsize (KiB) 690700

[startup+173.901 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 23641
/proc/meminfo: memFree=1723472/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=173.79
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 17378 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134535030 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 173.79
Current children cumulated vsize (KiB) 690700

[startup+174.101 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 23641
/proc/meminfo: memFree=1723472/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=173.99
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 17398 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134532255 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 173.99
Current children cumulated vsize (KiB) 690700

[startup+174.201 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 23641
/proc/meminfo: memFree=1723472/2055920 swapFree=4169724/4192956
[pid=23638] ppid=23636 vsize=690700 CPUtime=174.09
/proc/23638/stat : 23638 (dewSatz_fixed) R 23636 23638 22852 0 -1 4194304 10083 0 0 0 17408 1 0 0 25 0 1 0 211346091 707276800 300 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134532541 0 0 4096 0 0 0 0 17 0 0 0
/proc/23638/statm: 172675 300 43 100 0 172572 0
Current children cumulated CPU time (s) 174.09
Current children cumulated vsize (KiB) 690700

Child status: 10
Real time (s): 174.295
CPU time (s): 174.189
CPU user time (s): 174.173
CPU system time (s): 0.015997
CPU usage (%): 99.9388
Max. virtual memory (cumulated for all children) (KiB): 690700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 174.173
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10098
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= 6
involuntary context switches= 1236

runsolver used 0.146977 second user time and 0.491925 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Fri Apr 27 00:39:02 UTC 2007

IDJOB= 427264
IDBENCH= 19888
IDSOLVER= 197
FILE ID= node41/427264-1177634342

PBS_JOBID= 4697235

Free space on /tmp= 66397 MiB

SOLVER NAME= DEWSATZ 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v50/unif-k7-r89-v50-c4450-S228456758-12.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/427264-1177634342/dewSatz_fixed /tmp/evaluation/427264-1177634342/instance-427264-1177634342.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-427264-1177634342 -o ROOT/results/node41/solver-427264-1177634342 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/427264-1177634342/dewSatz_fixed /tmp/evaluation/427264-1177634342/instance-427264-1177634342.cnf

META MD5SUM SOLVER= 7386eb54c3fac2d8e6ad9191fdd25a76
MD5SUM BENCH=  3b624125de84e4dd806ca3ec600430c5

RANDOM SEED= 622019625

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1725600 kB
Buffers:         44944 kB
Cached:         197348 kB
SwapCached:       2440 kB
Active:         173236 kB
Inactive:        92552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1725600 kB
SwapTotal:     4192956 kB
SwapFree:      4169724 kB
Dirty:            1484 kB
Writeback:           0 kB
Mapped:          31572 kB
Slab:            49844 kB
Committed_AS:  3503812 kB
PageTables:       2008 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66397 MiB

End job on node41 on Fri Apr 27 00:41:56 UTC 2007