Trace number 4248030

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
R1: AbsCon-basic 2017-06-11SAT 1.07336 0.73296702

DiagnosticValue
WRONG_DECISIONS6

General information on the benchmark

NameCoveringArray/CoveringArray-elt-s1/
CoveringArray-elt-3-04-2-09.xml
MD5SUM2324a6ffb08ebf271119fd35f5319f57
Bench CategoryCSP (decision problem)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.0040500001
Satisfiable
(Un)Satisfiability was proved
Number of variables68
Number of constraints45
Number of domains2
Minimum domain size8
Maximum domain size9
Distribution of domain sizes[{"size":8,"count":36},{"size":9,"count":32}]
Minimum variable degree2
Maximum variable degree9
Distribution of variable degrees[{"degree":2,"count":32},{"degree":9,"count":36}]
Minimum constraint arity4
Maximum constraint arity10
Distribution of constraint arities[{"arity":4,"count":9},{"arity":8,"count":4},{"arity":10,"count":32}]
Number of extensional constraints9
Number of intensional constraints0
Distribution of constraint types[{"type":"extension","count":9},{"type":"allDifferent","count":4},{"type":"element","count":32}]
Optimization problemNO
Type of objective

Solver Data 

0.21/0.38	
0.21/0.38	AbsCon 2 
0.21/0.38	
0.55/0.59	  Solving XCSP3-instance-4248030-1502056456 as a CSP
0.55/0.59	  Loading variables...
0.75/0.62	  Loading constraints...
0.75/0.67	  Solver SolverBacktrack being built...
0.75/0.67	
0.75/0.70	  Preprocessing : gac=true, ccks=0, filters=0, revisions=0 (useless=0), AC=0, removals=0, inconsistent=false
0.75/0.70	
1.02/0.71	
1.02/0.71	v <instantiation id='sol1' type='solution'>  <list> p[][] v[][] </list>  <values> 0 2 3 4 5 6 7 8 0 2 4 3 6 5 7 8 0 3 4 2 7 5 6 8 0 5 6 2 7 3 4 8 0 0 1 2 3 4 5 6 7 0 0 1 3 2 5 4 6 7 0 0 3 1 2 5 6 4 7 0 0 3 5 6 1 2 4 7 </values>  </instantiation>
1.02/0.71	s SATISFIABLE
1.02/0.71	
1.02/0.71	d WRONG_DECISIONS 6

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2013 Olivier ROUSSEL

This is runsolver version 3.3.7 (svn: 2553)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4248030-1502056456/watcher-4248030-1502056456 -o /tmp/evaluation-result-4248030-1502056456/solver-4248030-1502056456 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node134-1502043430-5271 --watchdog 2560 java -jar HOME/AbsCon-basic.jar HOME/instance-4248030-1502056456.xml 

pid=7596
running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2500 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 8192 KiB


[startup+0 s]
/proc/loadavg: 7.94 4.68 3.15 6/204 7599
/proc/meminfo: memFree=23080272/32770624 swapFree=0/416168
[pid=7599] ppid=7596 vsize=23672 CPUtime=0 cores=0,2,4,6
/proc/7599/stat : 7599 (runsolver) D 7596 7599 25139 0 -1 4202560 107 0 0 0 0 0 0 0 20 0 1 0 53151663 24240128 108 18446744073709551615 4194304 4338465 140732523965728 140732523963368 140122413880023 0 0 1 24578 18446744071580418449 0 0 17 4 0 0 0 0 0 6438912 6441760 12570624 140732523970720 140732523971145 140732523971145 140732523974602 0
/proc/7599/statm: 5918 108 54 36 0 2156 0

[startup+0.100153 s]
/proc/loadavg: 7.94 4.68 3.15 6/204 7599
/proc/meminfo: memFree=23080272/32770624 swapFree=0/416168
[pid=7599] ppid=7596 vsize=23672 CPUtime=0 cores=0,2,4,6
/proc/7599/stat : 7599 (runsolver) D 7596 7599 25139 0 -1 4202560 107 0 0 0 0 0 0 0 20 0 1 0 53151663 24240128 108 18446744073709551615 4194304 4338465 140732523965728 140732523963368 140122413880023 0 0 1 24578 18446744071580418449 0 0 17 4 0 0 0 0 0 6438912 6441760 12570624 140732523970720 140732523971145 140732523971145 140732523974602 0
/proc/7599/statm: 5918 108 54 36 0 2156 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 23672

[startup+0.200323 s]
/proc/loadavg: 7.94 4.68 3.15 6/204 7599
/proc/meminfo: memFree=23080272/32770624 swapFree=0/416168
[pid=7599] ppid=7596 vsize=10484492 CPUtime=0.05 cores=0,2,4,6
/proc/7599/stat : 7599 (java) S 7596 7599 25139 0 -1 1077944320 4581 0 0 0 5 0 0 0 20 0 14 0 53151663 10736119808 5632 18446744073709551615 4194304 4196468 140727832898272 140727832880816 140594207358711 0 0 1 16800974 18446744073709551615 0 0 17 0 0 0 11 0 0 6293624 6294260 16904192 140727832904141 140727832904270 140727832904270 140727832907727 0
/proc/7599/statm: 2621123 5632 2578 1 0 2610620 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 10484492

[startup+0.300337 s]
/proc/loadavg: 7.94 4.68 3.15 6/204 7599
/proc/meminfo: memFree=23080272/32770624 swapFree=0/416168
[pid=7599] ppid=7596 vsize=10552204 CPUtime=0.21 cores=0,2,4,6
/proc/7599/stat : 7599 (java) S 7596 7599 25139 0 -1 1077944320 8008 0 0 0 19 2 0 0 20 0 15 0 53151663 10805456896 9111 18446744073709551615 4194304 4196468 140727832898272 140727832880816 140594207358711 0 0 1 16800974 18446744073709551615 0 0 17 0 0 0 11 0 0 6293624 6294260 16904192 140727832904141 140727832904270 140727832904270 140727832907727 0
/proc/7599/statm: 2638051 9177 2905 1 0 2627517 0
Current children cumulated CPU time (s) 0.21
Current children cumulated vsize (KiB) 10552204

[startup+0.707199 s]
/proc/loadavg: 7.94 4.68 3.15 6/204 7599
/proc/meminfo: memFree=23080272/32770624 swapFree=0/416168
[pid=7599] ppid=7596 vsize=10621952 CPUtime=1.02 cores=0,2,4,6
/proc/7599/stat : 7599 (java) S 7596 7599 25139 0 -1 1077944320 13139 0 0 0 97 5 0 0 20 0 16 0 53151663 10876878848 21305 18446744073709551615 4194304 4196468 140727832898272 140727832880816 140594207358711 0 0 1 16800974 18446744073709551615 0 0 17 0 0 0 11 0 0 6293624 6294260 16904192 140727832904141 140727832904270 140727832904270 140727832907727 0
/proc/7599/statm: 2655488 21305 3073 1 0 2644414 0
Current children cumulated CPU time (s) 1.02
Current children cumulated vsize (KiB) 10621952

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 7599 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.707199 s]
/proc/loadavg: 7.94 4.68 3.15 6/204 7599
/proc/meminfo: memFree=23080272/32770624 swapFree=0/416168
[pid=7599] ppid=7596 vsize=10621952 CPUtime=1.02 cores=0,2,4,6
/proc/7599/stat : 7599 (java) S 7596 7599 25139 0 -1 1077944320 13139 0 0 0 97 5 0 0 20 0 16 0 53151663 10876878848 21305 18446744073709551615 4194304 4196468 140727832898272 140727832880816 140594207358711 0 0 1 16800974 18446744073709551615 0 0 17 0 0 0 11 0 0 6293624 6294260 16904192 140727832904141 140727832904270 140727832904270 140727832907727 0
/proc/7599/statm: 2655488 21305 3073 1 0 2644414 0
Current children cumulated CPU time (s) 1.02
Current children cumulated vsize (KiB) 10621952

Child status: 0
Real time (s): 0.732967
CPU time (s): 1.07336
CPU user time (s): 1.01489
CPU system time (s): 0.058471
CPU usage (%): 146.441
Max. virtual memory (cumulated for all children) (KiB): 10621952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.01489
system time used= 0.058471
maximum resident set size= 86556
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13367
page faults= 0
swaps= 0
block input operations= 0
block output operations= 72
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1515
involuntary context switches= 2

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.003603 second user time and 0.007207 second system time

The end

Launcher Data 

Begin job on node134 at 2017-08-06 23:40:18
IDJOB=4248030
IDBENCH=139761
IDSOLVER=2624
FILE ID=node134/4248030-1502056456
RUNJOBID= node134-1502043430-5271
PBS_JOBID= 
Free space on /tmp= 62012 MiB

SOLVER NAME= AbsCon-basic 2017-06-11
BENCH NAME= XCSP17/CoveringArray/CoveringArray-elt-s1/CoveringArray-elt-3-04-2-09.xml
COMMAND LINE= java -jar HOME/AbsCon-basic.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4248030-1502056456/watcher-4248030-1502056456 -o /tmp/evaluation-result-4248030-1502056456/solver-4248030-1502056456 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node134-1502043430-5271 --watchdog 2560  java -jar HOME/AbsCon-basic.jar HOME/instance-4248030-1502056456.xml

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 2324a6ffb08ebf271119fd35f5319f57
RANDOM SEED=1197251099

node134.alineos.net Linux 3.10.0-514.16.1.el7.x86_64 #1 SMP Wed Apr 12 15:04:24 UTC 2017

/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:
performance

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.43
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.43
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.43
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.43
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32770624 kB
MemFree:        23080272 kB
MemAvailable:   23651036 kB
Buffers:          188364 kB
Cached:           672788 kB
SwapCached:            0 kB
Active:          8809820 kB
Inactive:         439200 kB
Active(anon):    8390368 kB
Inactive(anon):    23032 kB
Active(file):     419452 kB
Inactive(file):   416168 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              8256 kB
Writeback:             0 kB
AnonPages:       8396436 kB
Mapped:            52756 kB
Shmem:             25276 kB
Slab:             127488 kB
SReclaimable:     101960 kB
SUnreclaim:        25528 kB
KernelStack:        3856 kB
PageTables:        22440 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    8628660 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      354332 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:   7794688 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      101760 kB
DirectMap2M:    33443840 kB

Free space on /tmp at the end= 62008 MiB
End job on node134 at 2017-08-06 23:40:19