Trace number 460526

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
aigsat-wc 2007-05-15UNSAT 183.612 183.678

General information on the benchmark

Nameindustrial-aig/babic/
hsatv17/hsat_vc11935.aig
MD5SUM511d79d721ded3317aced2627cdd08dc
Bench CategoryALL (all instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.78297
SatisfiableNO
(Un)Satisfiability was proved

Solver Data (download as text)

17.08/17.20	c file: /tmp/evaluation/460526-1179250151/instance-460526-1179250151.aig
17.08/17.20	c Reading aig format..
17.08/17.20	c MAXVAR  562774
17.08/17.20	c INPUTS  65842
17.08/17.20	c LATCHES 0
17.08/17.20	c OUTPUTS 1
17.08/17.20	c AND     496932
17.08/17.20	c Before initialization time 16.6275
17.08/17.20	c Memory used (in MB): 410.273
183.53/183.60	c Using component size threshold as 13
183.53/183.60	
183.53/183.60	s UNSATISFIABLE
183.53/183.60	c Total time (in seconds): 182.863
183.53/183.60	c Memory used (in MB): 473.16
183.53/183.60	c Conflict literals deleted: [18.5434%] Max learned #lits [1258768] Reduced #lits [1025349]

Verifier Data (download as text)

No verification made

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node16/watcher-460526-1179250151 -o ROOT/results/node16/solver-460526-1179250151 -C 1200 -W 1800 -M 1800 --output-limit 1,15 -S 1 /tmp/evaluation/460526-1179250151/aigsat-wc /tmp/evaluation/460526-1179250151/instance-460526-1179250151.aig 

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 Stack size limit: 1048576 KiB
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: 1048576 KiB


[startup+0 s]
/proc/loadavg: 0.87 0.95 0.90 3/77 30572
/proc/meminfo: memFree=1775376/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=5720 CPUtime=0
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 489 249 0 0 0 0 0 0 19 0 1 0 372932763 5857280 468 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135242916 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 1430 479 124 293 0 1131 0

[startup+0.086713 s]
/proc/loadavg: 0.87 0.95 0.90 3/77 30572
/proc/meminfo: memFree=1775376/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=12316 CPUtime=0.08
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 2911 249 0 0 7 1 0 0 19 0 1 0 372932763 12611584 2890 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135276893 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 3079 2890 125 293 0 2780 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 12316

[startup+0.101709 s]
/proc/loadavg: 0.87 0.95 0.90 3/77 30572
/proc/meminfo: memFree=1775376/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=12316 CPUtime=0.09
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 2911 249 0 0 8 1 0 0 19 0 1 0 372932763 12611584 2890 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135276893 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 3079 2890 125 293 0 2780 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12316

[startup+0.301666 s]
/proc/loadavg: 0.87 0.95 0.90 3/77 30572
/proc/meminfo: memFree=1775376/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=19604 CPUtime=0.29
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 4732 249 0 0 28 1 0 0 20 0 1 0 372932763 20074496 4661 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135023903 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 4901 4661 136 293 0 4602 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 19604

[startup+0.701581 s]
/proc/loadavg: 0.87 0.95 0.90 3/77 30572
/proc/meminfo: memFree=1775376/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=37964 CPUtime=0.69
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 9613 249 0 0 66 3 0 0 25 0 1 0 372932763 38875136 9252 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135023903 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 9491 9253 136 293 0 9192 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 37964

[startup+1.50241 s]
/proc/loadavg: 0.87 0.95 0.90 2/78 30574
/proc/meminfo: memFree=1724744/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=83072 CPUtime=1.49
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 20498 249 0 0 142 7 0 0 25 0 1 0 372932763 85065728 19752 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134590471 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 20768 19752 136 293 0 20469 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 83072

[startup+3.10107 s]
/proc/loadavg: 0.87 0.95 0.90 2/78 30574
/proc/meminfo: memFree=1690056/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=112704 CPUtime=3.09
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 32134 249 0 0 297 12 0 0 25 0 1 0 372932763 115408896 27503 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135023903 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 28176 27504 136 293 0 27877 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 112704

[startup+6.30139 s]
/proc/loadavg: 0.88 0.95 0.90 2/78 30574
/proc/meminfo: memFree=1619016/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=172528 CPUtime=6.29
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 46582 249 0 0 612 17 0 0 25 0 1 0 372932763 176668672 41895 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134576679 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 43132 41895 137 293 0 42833 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 172528

[startup+12.701 s]
/proc/loadavg: 0.89 0.95 0.90 2/78 30574
/proc/meminfo: memFree=1429000/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=375964 CPUtime=12.69
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 115915 249 0 0 1226 43 0 0 25 0 1 0 372932763 384987136 89146 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135242764 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 93991 89146 142 293 0 93692 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 375964

[startup+25.5013 s]
/proc/loadavg: 0.92 0.96 0.90 2/78 30574
/proc/meminfo: memFree=1338248/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=466224 CPUtime=25.48
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 157521 249 0 0 2487 61 0 0 25 0 1 0 372932763 477413376 109180 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135242746 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 116556 109180 160 293 0 116257 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 466224

[startup+51.1018 s]
/proc/loadavg: 0.94 0.96 0.91 2/78 30574
/proc/meminfo: memFree=1333576/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=470632 CPUtime=51.07
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 158723 249 0 0 5045 62 0 0 25 0 1 0 372932763 481927168 110349 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134744691 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 117658 110349 160 293 0 117359 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 470632

[startup+102.307 s]
/proc/loadavg: 1.04 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1323912/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=479160 CPUtime=102.26
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 161192 249 0 0 10161 65 0 0 25 0 1 0 372932763 490659840 112720 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134727590 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 119790 112720 160 293 0 119491 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 479160

[startup+162.301 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1318920/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=483200 CPUtime=162.23
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162439 249 0 0 16156 67 0 0 25 0 1 0 372932763 494796800 113967 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135242788 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 120800 113967 160 293 0 120501 0
Current children cumulated CPU time (s) 162.23
Current children cumulated vsize (KiB) 483200

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

[startup+166.301 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1318600/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=483412 CPUtime=166.22
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162502 249 0 0 16555 67 0 0 25 0 1 0 372932763 495013888 114030 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134745348 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 120853 114030 160 293 0 120554 0
Current children cumulated CPU time (s) 166.22
Current children cumulated vsize (KiB) 483412

[startup+172.707 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1318152/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=483940 CPUtime=172.63
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162653 249 0 0 17196 67 0 0 25 0 1 0 372932763 495554560 114148 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134744715 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 120985 114148 160 293 0 120686 0
Current children cumulated CPU time (s) 172.63
Current children cumulated vsize (KiB) 483940

[startup+179.102 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1317896/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=484248 CPUtime=179.02
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162736 249 0 0 17835 67 0 0 25 0 1 0 372932763 495869952 114231 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134745286 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 121062 114231 160 293 0 120763 0
Current children cumulated CPU time (s) 179.02
Current children cumulated vsize (KiB) 484248

[startup+180.701 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1317768/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=484340 CPUtime=180.62
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162764 249 0 0 17995 67 0 0 25 0 1 0 372932763 495964160 114259 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134726022 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 121085 114259 160 293 0 120786 0
Current children cumulated CPU time (s) 180.62
Current children cumulated vsize (KiB) 484340

[startup+182.302 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1317704/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=484444 CPUtime=182.22
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162795 249 0 0 18155 67 0 0 25 0 1 0 372932763 496070656 114290 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134744749 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 121111 114290 160 293 0 120812 0
Current children cumulated CPU time (s) 182.22
Current children cumulated vsize (KiB) 484444

[startup+183.102 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1317576/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=484480 CPUtime=183.02
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162808 249 0 0 18235 67 0 0 25 0 1 0 372932763 496107520 114303 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134744777 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 121120 114303 160 293 0 120821 0
Current children cumulated CPU time (s) 183.02
Current children cumulated vsize (KiB) 484480

[startup+183.502 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1317576/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=484504 CPUtime=183.42
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162814 249 0 0 18275 67 0 0 25 0 1 0 372932763 496132096 114309 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 134756092 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 121126 114309 160 293 0 120827 0
Current children cumulated CPU time (s) 183.42
Current children cumulated vsize (KiB) 484504

[startup+183.602 s]
/proc/loadavg: 1.01 0.98 0.91 2/78 30574
/proc/meminfo: memFree=1317512/2055920 swapFree=4143480/4192956
[pid=30572] ppid=30570 vsize=484504 CPUtime=183.53
/proc/30572/stat : 30572 (aigsat-wc) R 30570 30572 29862 0 -1 0 162815 249 0 0 18286 67 0 0 25 0 1 0 372932763 496132096 114310 18446744073709551615 134512640 135716322 4294956592 18446744073709551615 135242790 0 0 4096 35 0 0 0 17 0 0 0
/proc/30572/statm: 121126 114310 160 293 0 120827 0
Current children cumulated CPU time (s) 183.53
Current children cumulated vsize (KiB) 484504

Child status: 20
Real time (s): 183.678
CPU time (s): 183.612
CPU user time (s): 182.863
CPU system time (s): 0.748886
CPU usage (%): 99.9641
Max. virtual memory (cumulated for all children) (KiB): 484504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 182.863
system time used= 0.748886
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 163068
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= 13
involuntary context switches= 4157

runsolver used 0.19597 second user time and 0.478927 second system time

The end

Launcher Data (download as text)

Begin job on node16 on Tue May 15 17:29:11 UTC 2007

IDJOB= 460526
IDBENCH= 48476
IDSOLVER= 202
FILE ID= node16/460526-1179250151

PBS_JOBID= 5276799

Free space on /tmp= 66536 MiB

SOLVER NAME= aigsat-wc 2007-05-15
BENCH NAME= HOME/pub/bench/AIG07/industrial-aig/babic/hsatv17/hsat_vc11935.aig
COMMAND LINE= /tmp/evaluation/460526-1179250151/aigsat-wc /tmp/evaluation/460526-1179250151/instance-460526-1179250151.aig            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-460526-1179250151 -o ROOT/results/node16/solver-460526-1179250151 -C 1200 -W 1800 -M 1800 --output-limit 1,15 -S 1 /tmp/evaluation/460526-1179250151/aigsat-wc /tmp/evaluation/460526-1179250151/instance-460526-1179250151.aig            

META MD5SUM SOLVER= a44537a071ffb1a142b3275181a5083c
MD5SUM BENCH=  511d79d721ded3317aced2627cdd08dc

RANDOM SEED= 44923382

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node16.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:       1775592 kB
Buffers:         41124 kB
Cached:         145652 kB
SwapCached:      17224 kB
Active:          43984 kB
Inactive:       167132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1775592 kB
SwapTotal:     4192956 kB
SwapFree:      4143480 kB
Dirty:            4228 kB
Writeback:           0 kB
Mapped:          30284 kB
Slab:            54620 kB
Committed_AS: 14784492 kB
PageTables:       1868 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= 66536 MiB

End job on node16 on Tue May 15 17:32:15 UTC 2007