Trace number 421815

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
minisat SAT 2007UNSAT 65.771 65.7977

General information on the benchmark

Namecrafted/Difficult/contest05/QG/
QG6-gensys-icl008.sat05-2720.reshuffled-07.cnf
MD5SUMf1b3061e7694aa99406ed9e867c9dfa5
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark65.771
Satisfiable
(Un)Satisfiability was proved
Number of variables1610
Number of clauses8277
Sum of the clauses size69859
Maximum clause length16
Minimum clause length1
Number of clauses of size 133
Number of clauses of size 2283
Number of clauses of size 31178
Number of clauses of size 4142
Number of clauses of size 5924
Number of clauses of size over 55717

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  1610                                                 |
0.00/0.00	c |  Number of clauses:    8277                                                 |
0.00/0.02	c |  Parsing time:         0.02         s                                       |
0.00/0.07	c ============================[ Search Statistics ]==============================
0.00/0.07	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.07	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.07	c ===============================================================================
0.00/0.07	c |         0 |    1349     4956    38889 |     1652        0    nan |  0.000 % |
0.00/0.07	c |       101 |    1349     4956    38889 |     1817      101     11 |  2.609 % |
0.00/0.07	c |       252 |    1349     4956    38889 |     1998      252     13 |  2.609 % |
0.00/0.08	c |       478 |    1349     4956    38889 |     2198      478     15 |  2.609 % |
0.08/0.08	c |       815 |    1349     4956    38889 |     2418      815     14 |  2.609 % |
0.09/0.10	c |      1323 |    1349     4956    38889 |     2660     1323     19 |  2.609 % |
0.09/0.13	c |      2083 |    1349     4956    38889 |     2926     2083     20 |  2.609 % |
0.09/0.17	c |      3223 |    1349     4956    38889 |     3219     1694     16 |  2.609 % |
0.19/0.25	c |      4931 |    1349     4956    38889 |     3541     1738     22 |  2.609 % |
0.29/0.36	c |      7493 |    1349     4956    38889 |     3895     2477     18 |  2.609 % |
0.49/0.53	c |     11337 |    1349     4956    38889 |     4284     2339     14 |  2.609 % |
0.79/0.83	c |     17104 |    1349     4956    38889 |     4713     3722     17 |  2.609 % |
1.19/1.30	c |     25754 |    1349     4956    38889 |     5184     2748     16 |  2.609 % |
2.10/2.17	c |     38728 |    1349     4956    38889 |     5703     5145     23 |  2.609 % |
3.30/3.39	c |     58189 |    1349     4956    38889 |     6273     4256     17 |  2.609 % |
5.40/5.43	c |     87382 |    1349     4956    38889 |     6900     4694     27 |  2.609 % |
9.09/9.13	c |    131173 |    1349     4956    38889 |     7590     6377     22 |  2.609 % |
13.99/14.00	c |    196858 |    1348     4551    35542 |     8349     4200     19 |  2.671 % |
21.49/21.54	c |    295386 |    1348     4551    35542 |     9184     5535     16 |  2.671 % |
34.28/34.32	c |    443175 |    1348     4551    35542 |    10103     4701     16 |  2.671 % |
54.37/54.47	c |    664858 |    1346     4518    35410 |    11113     8573     20 |  2.796 % |
65.67/65.79	c ===============================================================================
65.67/65.79	c restarts              : 21
65.67/65.79	c conflicts             : 779818         (11858 /sec)
65.67/65.79	c decisions             : 1775164        (1.94 % random) (26993 /sec)
65.67/65.79	c propagations          : 27264603       (414582 /sec)
65.67/65.79	c conflict literals     : 16734013       (25.26 % deleted)
65.67/65.79	c Memory used           : 4.69 MB
65.67/65.79	c CPU time              : 65.764 s
65.67/65.79	c 
65.67/65.79	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node20/watcher-421815-1177496257 -o ROOT/results/node20/solver-421815-1177496257 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421815-1177496257/minisat_noassertions /tmp/evaluation/421815-1177496257/instance-421815-1177496257.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: 0.91 0.95 0.90 3/77 21002
/proc/meminfo: memFree=1803248/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=2012 CPUtime=0
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 244 0 0 0 0 0 0 0 18 0 1 0 197543013 2060288 230 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 503 230 50 130 0 370 0

[startup+0.087715 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 21002
/proc/meminfo: memFree=1803248/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=2952 CPUtime=0.08
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 505 0 0 0 8 0 0 0 18 0 1 0 197543013 3022848 491 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546962 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 738 491 66 130 0 605 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2952

[startup+0.101718 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 21002
/proc/meminfo: memFree=1803248/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=2952 CPUtime=0.09
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 505 0 0 0 9 0 0 0 18 0 1 0 197543013 3022848 491 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546942 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 738 491 66 130 0 605 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2952

[startup+0.301758 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 21002
/proc/meminfo: memFree=1803248/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=2952 CPUtime=0.29
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 505 0 0 0 29 0 0 0 19 0 1 0 197543013 3022848 491 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547020 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 738 491 66 130 0 605 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2952

[startup+0.701838 s]
/proc/loadavg: 0.91 0.95 0.90 3/77 21002
/proc/meminfo: memFree=1803248/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=2952 CPUtime=0.69
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 506 0 0 0 69 0 0 0 23 0 1 0 197543013 3022848 492 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547011 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 738 492 66 130 0 605 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2952

[startup+1.503 s]
/proc/loadavg: 0.91 0.95 0.90 2/78 21003
/proc/meminfo: memFree=1801512/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=2952 CPUtime=1.5
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 513 0 0 0 150 0 0 0 25 0 1 0 197543013 3022848 499 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546842 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 738 499 66 130 0 605 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 2952

[startup+3.10132 s]
/proc/loadavg: 0.91 0.95 0.90 2/78 21003
/proc/meminfo: memFree=1801256/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=3216 CPUtime=3.09
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 563 0 0 0 309 0 0 0 25 0 1 0 197543013 3293184 549 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547020 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 804 549 66 130 0 671 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3216

[startup+6.30196 s]
/proc/loadavg: 0.92 0.95 0.90 2/78 21003
/proc/meminfo: memFree=1800872/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=3612 CPUtime=6.29
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 671 0 0 0 629 0 0 0 25 0 1 0 197543013 3698688 657 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 903 657 66 130 0 770 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3612

[startup+12.7012 s]
/proc/loadavg: 0.93 0.95 0.90 2/78 21003
/proc/meminfo: memFree=1800552/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=3744 CPUtime=12.69
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 696 0 0 0 1269 0 0 0 25 0 1 0 197543013 3833856 682 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 936 682 66 130 0 803 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3744

[startup+25.5018 s]
/proc/loadavg: 0.94 0.96 0.91 2/78 21003
/proc/meminfo: memFree=1800104/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=4140 CPUtime=25.48
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 803 0 0 0 2548 0 0 0 25 0 1 0 197543013 4239360 789 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546942 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 1035 789 66 130 0 902 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 4140

[startup+51.1019 s]
/proc/loadavg: 0.96 0.96 0.91 2/78 21003
/proc/meminfo: memFree=1799720/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=4536 CPUtime=51.07
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 897 0 0 0 5107 0 0 0 25 0 1 0 197543013 4644864 883 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546850 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 1134 883 66 130 0 1001 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 4536

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

[startup+57.5022 s]
/proc/loadavg: 0.96 0.96 0.91 2/78 21003
/proc/meminfo: memFree=1799656/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=4660 CPUtime=57.47
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 919 0 0 0 5747 0 0 0 25 0 1 0 197543013 4771840 905 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547270 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 1165 905 66 130 0 1032 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 4660

[startup+60.7019 s]
/proc/loadavg: 0.97 0.96 0.91 2/78 21003
/proc/meminfo: memFree=1799592/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=4660 CPUtime=60.67
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 931 0 0 0 6067 0 0 0 25 0 1 0 197543013 4771840 917 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 1165 917 66 130 0 1032 0
Current children cumulated CPU time (s) 60.67
Current children cumulated vsize (KiB) 4660

[startup+63.9015 s]
/proc/loadavg: 0.97 0.96 0.91 2/78 21003
/proc/meminfo: memFree=1799528/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=4660 CPUtime=63.87
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 938 0 0 0 6387 0 0 0 25 0 1 0 197543013 4771840 924 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547020 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 1165 924 66 130 0 1032 0
Current children cumulated CPU time (s) 63.87
Current children cumulated vsize (KiB) 4660

[startup+64.7017 s]
/proc/loadavg: 0.97 0.96 0.91 2/78 21003
/proc/meminfo: memFree=1799528/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=4660 CPUtime=64.67
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 940 0 0 0 6467 0 0 0 25 0 1 0 197543013 4771840 926 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546924 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 1165 926 66 130 0 1032 0
Current children cumulated CPU time (s) 64.67
Current children cumulated vsize (KiB) 4660

[startup+65.5018 s]
/proc/loadavg: 0.97 0.96 0.91 2/78 21003
/proc/meminfo: memFree=1799528/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=4796 CPUtime=65.47
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 943 0 0 0 6547 0 0 0 25 0 1 0 197543013 4911104 929 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 1199 929 66 130 0 1066 0
Current children cumulated CPU time (s) 65.47
Current children cumulated vsize (KiB) 4796

[startup+65.7019 s]
/proc/loadavg: 0.97 0.96 0.91 2/78 21003
/proc/meminfo: memFree=1799528/2055920 swapFree=4154112/4192956
[pid=21002] ppid=21000 vsize=4796 CPUtime=65.67
/proc/21002/stat : 21002 (minisat_noasser) R 21000 21002 20056 0 -1 4194304 943 0 0 0 6567 0 0 0 25 0 1 0 197543013 4911104 929 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547020 0 0 4096 3 0 0 0 17 1 0 0
/proc/21002/statm: 1199 929 66 130 0 1066 0
Current children cumulated CPU time (s) 65.67
Current children cumulated vsize (KiB) 4796

Child status: 20
Real time (s): 65.7977
CPU time (s): 65.771
CPU user time (s): 65.764
CPU system time (s): 0.006998
CPU usage (%): 99.9594
Max. virtual memory (cumulated for all children) (KiB): 4796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 65.764
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 949
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= 8
involuntary context switches= 1361

runsolver used 0.050992 second user time and 0.145977 second system time

The end

Launcher Data (download as text)

Begin job on node20 on Wed Apr 25 10:17:37 UTC 2007

IDJOB= 421815
IDBENCH= 24718
IDSOLVER= 188
FILE ID= node20/421815-1177496257

PBS_JOBID= 4685800

Free space on /tmp= 66455 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/QG/QG6-gensys-icl008.sat05-2720.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/421815-1177496257/minisat_noassertions /tmp/evaluation/421815-1177496257/instance-421815-1177496257.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-421815-1177496257 -o ROOT/results/node20/solver-421815-1177496257 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421815-1177496257/minisat_noassertions /tmp/evaluation/421815-1177496257/instance-421815-1177496257.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  f1b3061e7694aa99406ed9e867c9dfa5

RANDOM SEED= 834381240

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node20.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		: 3000.265
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		: 3000.265
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:       1803720 kB
Buffers:         39596 kB
Cached:         141516 kB
SwapCached:      18128 kB
Active:         115984 kB
Inactive:        92984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1803720 kB
SwapTotal:     4192956 kB
SwapFree:      4154112 kB
Dirty:            1824 kB
Writeback:           0 kB
Mapped:          33124 kB
Slab:            28792 kB
Committed_AS:  2056760 kB
PageTables:       1752 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= 66455 MiB

End job on node20 on Wed Apr 25 10:18:43 UTC 2007