Trace number 310973

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
SATzilla RANDOMUNSAT 28.2957 28.3259

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
MD5SUMf1d2cd08ac7f8096a38662a7d7275db8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.0164
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

10.62/10.73	c run March_dl for 5 seconds ... 
10.62/10.73	c Bin: Executing march_dl
10.62/10.73	c child exit by a signal
10.62/10.73	c march_dl returned code 137.
10.62/10.73	c run saps (UBCSAT implementation) for 2 seconds ... 
10.62/10.73	c Bin: Executing ubcsat2006
10.62/10.73	c child exited successfully
10.62/10.73	c ubcsat2006 returned code 0.
10.62/10.73	c satzilla computing base features
10.62/10.73	c satzilla doing unit-prop probe
10.62/10.73	c satzilla doing local search probe
10.62/10.73	c satzilla doing lobjois search-space size estimate
10.62/10.73	c satzilla's ranking:
10.62/10.73	c 1) kcnfs: 3.657739
10.62/10.73	c 2) minisat20+P: 8.590021
10.62/10.73	c 3) march_dl: 12.401648
10.62/10.73	c 4) kcnfs+P: 999.000000
10.62/10.73	c 5) march_dl+P: 999.000000
10.62/10.73	c 6) vallst+P: 999.000000
10.62/10.73	c 7) zchaff_rand+P: 999.000000
10.62/10.73	c 8) vallst: 999.000000
10.62/10.73	c 9) zchaff_rand: 999.000000
10.62/10.73	c 10) minisat20: 999.000000
10.62/10.73	c satzilla running kcnfs ... 
28.23/28.32	c Bin: Executing kcnfs
28.23/28.32	c child exited successfully
28.23/28.32	c kcnfs returned code 20.
28.23/28.32	s UNSATISFIABLE
28.23/28.32	c SATZILLA_TIME=28.280000

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node43/watcher-310973-1172563432 -o ROOT/results/node43/solver-310973-1172563432 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310973-1172563432/SATzilla2007_R /tmp/evaluation/310973-1172563432/instance-310973-1172563432.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 1.01 1.00 1.00 3/64 4087
/proc/meminfo: memFree=1799944/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1440 CPUtime=0
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 276299273 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 360 110 95 260 0 84 0
[pid=4088] ppid=4087 vsize=768 CPUtime=0
/proc/4088/stat : 4088 (march_dl) R 4087 4087 3096 0 -1 4194304 99 0 0 0 0 0 0 0 19 0 1 0 276299273 786432 94 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134669245 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4088/statm: 192 94 50 118 0 71 0

[startup+0.106144 s]
/proc/loadavg: 1.01 1.00 1.00 3/64 4087
/proc/meminfo: memFree=1799944/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1440 CPUtime=0
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 276299273 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 360 110 95 260 0 84 0
[pid=4088] ppid=4087 vsize=1988 CPUtime=0.1
/proc/4088/stat : 4088 (march_dl) R 4087 4087 3096 0 -1 4194304 435 0 0 0 10 0 0 0 20 0 1 0 276299273 2035712 427 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134532777 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4088/statm: 497 427 74 118 0 376 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3428

[startup+0.51421 s]
/proc/loadavg: 1.01 1.00 1.00 3/64 4087
/proc/meminfo: memFree=1799944/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1440 CPUtime=0
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 276299273 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 360 110 95 260 0 84 0
[pid=4088] ppid=4087 vsize=2120 CPUtime=0.51
/proc/4088/stat : 4088 (march_dl) R 4087 4087 3096 0 -1 4194304 463 0 0 0 51 0 0 0 23 0 1 0 276299273 2170880 455 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134551635 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4088/statm: 530 455 74 118 0 409 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3560

[startup+1.33435 s]
/proc/loadavg: 1.01 1.00 1.00 2/66 4089
/proc/meminfo: memFree=1798136/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1440 CPUtime=0
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 276299273 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 360 110 95 260 0 84 0
[pid=4088] ppid=4087 vsize=2252 CPUtime=1.33
/proc/4088/stat : 4088 (march_dl) R 4087 4087 3096 0 -1 4194304 495 0 0 0 133 0 0 0 25 0 1 0 276299273 2306048 487 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134536965 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4088/statm: 563 487 74 118 0 442 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3692

[startup+2.97062 s]
/proc/loadavg: 1.01 1.00 1.00 2/66 4089
/proc/meminfo: memFree=1797944/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1440 CPUtime=0
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 276299273 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 360 110 95 260 0 84 0
[pid=4088] ppid=4087 vsize=2384 CPUtime=2.96
/proc/4088/stat : 4088 (march_dl) R 4087 4087 3096 0 -1 4194304 519 0 0 0 296 0 0 0 25 0 1 0 276299273 2441216 511 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134527907 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4088/statm: 596 511 74 118 0 475 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 3824

[startup+6.25216 s]
/proc/loadavg: 1.01 1.00 1.00 2/66 4090
/proc/meminfo: memFree=1799032/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1440 CPUtime=4.99
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 135 535 0 0 0 0 499 0 16 0 1 0 276299273 1474560 111 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4087/statm: 360 111 96 260 0 84 0
[pid=4090] ppid=4087 vsize=6188 CPUtime=1.24
/proc/4090/stat : 4090 (ubcsat2006) R 4087 4087 3096 0 -1 4194304 301 0 0 0 102 22 0 0 25 0 1 0 276299773 6336512 284 18446744073709551615 134512640 134777720 4294956576 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4090/statm: 1547 284 156 64 0 1128 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 7628

[startup+12.7062 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 4091
/proc/meminfo: memFree=1797816/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1868 CPUtime=10.7
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 700 842 0 0 312 17 700 41 25 0 1 0 276299273 1912832 294 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 467 294 156 260 0 191 0
[pid=4091] ppid=4087 vsize=182748 CPUtime=1.96
/proc/4091/stat : 4091 (kcnfs) R 4087 4087 3096 0 -1 4194304 462 0 1 0 196 0 0 0 25 0 1 0 276300346 187133952 447 18446744073709551615 134512640 134709692 4294956720 18446744073709551615 134556249 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4091/statm: 45687 447 132 48 0 45284 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 184616

[startup+25.5184 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 4091
/proc/meminfo: memFree=1797824/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1868 CPUtime=10.7
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 700 842 0 0 312 17 700 41 25 0 1 0 276299273 1912832 294 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 467 294 156 260 0 191 0
[pid=4091] ppid=4087 vsize=182748 CPUtime=14.76
/proc/4091/stat : 4091 (kcnfs) R 4087 4087 3096 0 -1 4194304 463 0 1 0 1476 0 0 0 25 0 1 0 276300346 187133952 448 18446744073709551615 134512640 134709692 4294956720 18446744073709551615 134559411 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4091/statm: 45687 448 132 48 0 45284 0
Current children cumulated CPU time (s) 25.46
Current children cumulated vsize (KiB) 184616

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

[startup+26.2365 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 4091
/proc/meminfo: memFree=1797824/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1868 CPUtime=10.7
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 700 842 0 0 312 17 700 41 25 0 1 0 276299273 1912832 294 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 467 294 156 260 0 191 0
[pid=4091] ppid=4087 vsize=182748 CPUtime=15.48
/proc/4091/stat : 4091 (kcnfs) R 4087 4087 3096 0 -1 4194304 463 0 1 0 1548 0 0 0 25 0 1 0 276300346 187133952 448 18446744073709551615 134512640 134709692 4294956720 18446744073709551615 134559411 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4091/statm: 45687 448 132 48 0 45284 0
Current children cumulated CPU time (s) 26.18
Current children cumulated vsize (KiB) 184616

[startup+27.0526 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 4091
/proc/meminfo: memFree=1797824/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1868 CPUtime=10.7
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 700 842 0 0 312 17 700 41 25 0 1 0 276299273 1912832 294 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 467 294 156 260 0 191 0
[pid=4091] ppid=4087 vsize=182748 CPUtime=16.3
/proc/4091/stat : 4091 (kcnfs) R 4087 4087 3096 0 -1 4194304 463 0 1 0 1630 0 0 0 25 0 1 0 276300346 187133952 448 18446744073709551615 134512640 134709692 4294956720 18446744073709551615 134555963 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4091/statm: 45687 448 132 48 0 45284 0
Current children cumulated CPU time (s) 27
Current children cumulated vsize (KiB) 184616

[startup+27.8728 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 4091
/proc/meminfo: memFree=1797824/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1868 CPUtime=10.7
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 700 842 0 0 312 17 700 41 25 0 1 0 276299273 1912832 294 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 467 294 156 260 0 191 0
[pid=4091] ppid=4087 vsize=182748 CPUtime=17.12
/proc/4091/stat : 4091 (kcnfs) R 4087 4087 3096 0 -1 4194304 463 0 1 0 1712 0 0 0 25 0 1 0 276300346 187133952 448 18446744073709551615 134512640 134709692 4294956720 18446744073709551615 134563172 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4091/statm: 45687 448 132 48 0 45284 0
Current children cumulated CPU time (s) 27.82
Current children cumulated vsize (KiB) 184616

[startup+28.2848 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 4091
/proc/meminfo: memFree=1797824/2055920 swapFree=4177336/4192956
[pid=4087] ppid=4085 vsize=1868 CPUtime=10.7
/proc/4087/stat : 4087 (SATzilla2007_R) S 4085 4087 3096 0 -1 4194304 700 842 0 0 312 17 700 41 25 0 1 0 276299273 1912832 294 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/4087/statm: 467 294 156 260 0 191 0
[pid=4091] ppid=4087 vsize=182748 CPUtime=17.53
/proc/4091/stat : 4091 (kcnfs) R 4087 4087 3096 0 -1 4194304 463 0 1 0 1753 0 0 0 25 0 1 0 276300346 187133952 448 18446744073709551615 134512640 134709692 4294956720 18446744073709551615 134556009 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4091/statm: 45687 448 132 48 0 45284 0
Current children cumulated CPU time (s) 28.23
Current children cumulated vsize (KiB) 184616

Child status: 20
Real time (s): 28.3259
CPU time (s): 28.2957
CPU user time (s): 27.7028
CPU system time (s): 0.592909
CPU usage (%): 99.8932
Max. virtual memory (cumulated for all children) (KiB): 184616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.7028
system time used= 0.592909
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2021
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 29
involuntary context switches= 55

runsolver used 0.034994 second user time and 0.058991 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Tue Feb 27 08:03:52 UTC 2007

IDJOB= 310973
IDBENCH= 20300
IDSOLVER= 134
FILE ID= node43/310973-1172563432

PBS_JOBID= 3971868

Free space on /tmp= 66552 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310973-1172563432/SATzilla2007_R /tmp/evaluation/310973-1172563432/instance-310973-1172563432.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-310973-1172563432 -o ROOT/results/node43/solver-310973-1172563432 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310973-1172563432/SATzilla2007_R /tmp/evaluation/310973-1172563432/instance-310973-1172563432.cnf            

META MD5SUM SOLVER= 44dcaa7dbf032757655ae5e30ee65a10
MD5SUM BENCH=  f1d2cd08ac7f8096a38662a7d7275db8

RANDOM SEED= 737690560

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.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		: 3000.281
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		: 3000.281
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:       1800352 kB
Buffers:         32028 kB
Cached:         167380 kB
SwapCached:       9964 kB
Active:          92620 kB
Inactive:       123344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1800352 kB
SwapTotal:     4192956 kB
SwapFree:      4177336 kB
Dirty:            8420 kB
Writeback:           0 kB
Mapped:          15356 kB
Slab:            25696 kB
Committed_AS:   669720 kB
PageTables:       1392 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= 66552 MiB

End job on node43 on Tue Feb 27 08:04:21 UTC 2007