Trace number 356354

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
picosat 535UNSAT 212.311 212.368

General information on the benchmark

Nameindustrial/palacios/medium/
cube-9-h10-unsat.cnf
MD5SUMd2ca322a34242a2eebffc77c1c1d76f9
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark51.9541
Satisfiable
(Un)Satisfiability was proved
Number of variables179493
Number of clauses541172
Sum of the clauses size1263192
Maximum clause length19
Minimum clause length1
Number of clauses of size 1729
Number of clauses of size 2361070
Number of clauses of size 3177947
Number of clauses of size 41262
Number of clauses of size 521
Number of clauses of size over 5143

Solver Data (download as text)

212.24/212.36	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/node11/watcher-356354-1177542292 -o ROOT/results/node11/solver-356354-1177542292 -C 10000 -W 15000 -M 1800 --output-limit 1,15 /tmp/evaluation/356354-1177542292/picosat /tmp/evaluation/356354-1177542292/instance-356354-1177542292.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 15000 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: 0.77 0.26 0.09 3/77 8139
/proc/meminfo: memFree=1739392/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=724 CPUtime=0
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 98 0 0 0 0 0 0 0 18 0 1 0 195278161 741376 84 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 181 84 40 102 0 76 0

[startup+0.103977 s]
/proc/loadavg: 0.77 0.26 0.09 3/77 8139
/proc/meminfo: memFree=1739392/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=1396 CPUtime=0.09
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 254 0 0 0 4 5 0 0 18 0 1 0 195278161 1429504 240 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 349 240 40 102 0 244 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1396

[startup+0.201988 s]
/proc/loadavg: 0.77 0.26 0.09 3/77 8139
/proc/meminfo: memFree=1739392/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=2172 CPUtime=0.19
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 404 0 0 0 8 11 0 0 18 0 1 0 195278161 2224128 390 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 543 390 40 102 0 438 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2172

[startup+0.302 s]
/proc/loadavg: 0.77 0.26 0.09 3/77 8139
/proc/meminfo: memFree=1739392/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=2436 CPUtime=0.29
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 530 0 0 0 11 18 0 0 19 0 1 0 195278161 2494464 516 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 609 516 40 102 0 504 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2436

[startup+0.701045 s]
/proc/loadavg: 0.77 0.26 0.09 3/77 8139
/proc/meminfo: memFree=1739392/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=6724 CPUtime=0.69
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 1122 0 0 0 29 40 0 0 23 0 1 0 195278161 6885376 1108 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 1681 1108 40 102 0 1576 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6724

[startup+1.50114 s]
/proc/loadavg: 0.79 0.27 0.09 2/78 8140
/proc/meminfo: memFree=1732920/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=13056 CPUtime=1.48
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 2189 0 0 0 67 81 0 0 25 0 1 0 195278161 13369344 2175 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 3264 2175 40 102 0 3159 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 13056

[startup+3.10133 s]
/proc/loadavg: 0.79 0.27 0.09 2/78 8140
/proc/meminfo: memFree=1726712/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=25872 CPUtime=3.09
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 4434 0 0 0 139 170 0 0 25 0 1 0 195278161 26492928 4420 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 6468 4420 40 102 0 6363 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 25872

[startup+6.30171 s]
/proc/loadavg: 0.79 0.27 0.09 2/78 8140
/proc/meminfo: memFree=1715968/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=32504 CPUtime=6.29
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 5919 0 0 0 412 217 0 0 25 0 1 0 195278161 33284096 5903 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 8126 5903 48 102 0 8021 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 32504

[startup+12.7015 s]
/proc/loadavg: 0.90 0.31 0.11 2/78 8140
/proc/meminfo: memFree=1715392/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=32884 CPUtime=12.69
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 6044 0 0 0 1052 217 0 0 25 0 1 0 195278161 33673216 6028 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 8221 6028 48 102 0 8116 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 32884

[startup+25.502 s]
/proc/loadavg: 0.91 0.33 0.12 2/78 8140
/proc/meminfo: memFree=1714496/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=33780 CPUtime=25.48
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 6288 0 0 0 2331 217 0 0 25 0 1 0 195278161 34590720 6272 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 8445 6272 48 102 0 8340 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 33780

[startup+51.102 s]
/proc/loadavg: 1.07 0.42 0.15 2/78 8140
/proc/meminfo: memFree=1712576/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=35700 CPUtime=51.08
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 6774 0 0 0 4890 218 0 0 25 0 1 0 195278161 36556800 6758 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 8925 6758 48 102 0 8820 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 35700

[startup+102.302 s]
/proc/loadavg: 1.07 0.53 0.20 2/78 8140
/proc/meminfo: memFree=1710016/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=38168 CPUtime=102.26
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 7417 0 0 0 10007 219 0 0 25 0 1 0 195278161 39084032 7401 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134524112 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 9542 7401 48 102 0 9437 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 38168

[startup+162.301 s]
/proc/loadavg: 1.09 0.64 0.26 2/78 8140
/proc/meminfo: memFree=1706624/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=41524 CPUtime=162.25
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8264 0 0 0 16004 221 0 0 25 0 1 0 195278161 42520576 8248 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134524112 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10381 8248 48 102 0 10276 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 41524

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

[startup+179.201 s]
/proc/loadavg: 1.21 0.69 0.28 2/78 8140
/proc/meminfo: memFree=1705600/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=42560 CPUtime=179.14
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8524 0 0 0 17693 221 0 0 25 0 1 0 195278161 43581440 8508 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525621 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10640 8508 48 102 0 10535 0
Current children cumulated CPU time (s) 179.14
Current children cumulated vsize (KiB) 42560

[startup+192.002 s]
/proc/loadavg: 1.17 0.70 0.29 2/78 8140
/proc/meminfo: memFree=1704704/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=43336 CPUtime=191.94
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8728 0 0 0 18972 222 0 0 25 0 1 0 195278161 44376064 8712 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525860 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10834 8712 48 102 0 10729 0
Current children cumulated CPU time (s) 191.94
Current children cumulated vsize (KiB) 43336

[startup+204.801 s]
/proc/loadavg: 1.14 0.71 0.30 2/78 8140
/proc/meminfo: memFree=1704704/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=43336 CPUtime=204.74
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8728 0 0 0 20252 222 0 0 25 0 1 0 195278161 44376064 8712 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10834 8712 48 102 0 10729 0
Current children cumulated CPU time (s) 204.74
Current children cumulated vsize (KiB) 43336

[startup+208.005 s]
/proc/loadavg: 1.13 0.72 0.30 2/78 8140
/proc/meminfo: memFree=1704704/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=43336 CPUtime=207.94
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8728 0 0 0 20572 222 0 0 25 0 1 0 195278161 44376064 8712 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134523030 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10834 8712 48 102 0 10729 0
Current children cumulated CPU time (s) 207.94
Current children cumulated vsize (KiB) 43336

[startup+209.602 s]
/proc/loadavg: 1.13 0.72 0.30 2/78 8140
/proc/meminfo: memFree=1704704/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=43336 CPUtime=209.53
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8728 0 0 0 20731 222 0 0 25 0 1 0 195278161 44376064 8712 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525860 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10834 8712 48 102 0 10729 0
Current children cumulated CPU time (s) 209.53
Current children cumulated vsize (KiB) 43336

[startup+211.202 s]
/proc/loadavg: 1.12 0.72 0.30 2/78 8140
/proc/meminfo: memFree=1704704/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=43336 CPUtime=211.14
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8728 0 0 0 20892 222 0 0 25 0 1 0 195278161 44376064 8712 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10834 8712 48 102 0 10729 0
Current children cumulated CPU time (s) 211.14
Current children cumulated vsize (KiB) 43336

[startup+212.002 s]
/proc/loadavg: 1.12 0.72 0.30 2/78 8140
/proc/meminfo: memFree=1704704/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=43336 CPUtime=211.93
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8728 0 0 0 20971 222 0 0 25 0 1 0 195278161 44376064 8712 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134529054 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10834 8712 48 102 0 10729 0
Current children cumulated CPU time (s) 211.93
Current children cumulated vsize (KiB) 43336

[startup+212.202 s]
/proc/loadavg: 1.12 0.72 0.30 2/78 8140
/proc/meminfo: memFree=1704704/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=43336 CPUtime=212.13
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8728 0 0 0 20991 222 0 0 25 0 1 0 195278161 44376064 8712 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134530822 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10834 8712 48 102 0 10729 0
Current children cumulated CPU time (s) 212.13
Current children cumulated vsize (KiB) 43336

[startup+212.302 s]
/proc/loadavg: 1.12 0.72 0.30 2/78 8140
/proc/meminfo: memFree=1704704/2055920 swapFree=4146740/4192956
[pid=8139] ppid=8137 vsize=43336 CPUtime=212.24
/proc/8139/stat : 8139 (picosat) R 8137 8139 8045 0 -1 4194304 8743 0 0 0 21002 222 0 0 25 0 1 0 195278161 44376064 8727 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134580560 0 0 4096 0 0 0 0 17 1 0 0
/proc/8139/statm: 10834 8727 48 102 0 10729 0
Current children cumulated CPU time (s) 212.24
Current children cumulated vsize (KiB) 43336

Child status: 20
Real time (s): 212.368
CPU time (s): 212.311
CPU user time (s): 210.079
CPU system time (s): 2.23166
CPU usage (%): 99.973
Max. virtual memory (cumulated for all children) (KiB): 43336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 210.079
system time used= 2.23166
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8751
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= 4529

runsolver used 0.154976 second user time and 0.476927 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Wed Apr 25 23:04:52 UTC 2007

IDJOB= 356354
IDBENCH= 20422
IDSOLVER= 171
FILE ID= node11/356354-1177542292

PBS_JOBID= 4695921

Free space on /tmp= 66342 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/palacios/medium/cube-9-h10-unsat.cnf
COMMAND LINE= /tmp/evaluation/356354-1177542292/picosat /tmp/evaluation/356354-1177542292/instance-356354-1177542292.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-356354-1177542292 -o ROOT/results/node11/solver-356354-1177542292 -C 10000 -W 15000 -M 1800 --output-limit 1,15  /tmp/evaluation/356354-1177542292/picosat /tmp/evaluation/356354-1177542292/instance-356354-1177542292.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  d2ca322a34242a2eebffc77c1c1d76f9

RANDOM SEED= 91456036

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.235
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		: 3000.235
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:       1739800 kB
Buffers:         40828 kB
Cached:         190328 kB
SwapCached:      15344 kB
Active:         179176 kB
Inactive:        90748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1739800 kB
SwapTotal:     4192956 kB
SwapFree:      4146740 kB
Dirty:            9776 kB
Writeback:           0 kB
Mapped:          44540 kB
Slab:            31668 kB
Committed_AS:  6380760 kB
PageTables:       1884 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= 66342 MiB

End job on node11 on Wed Apr 25 23:08:25 UTC 2007