Trace number 1051497

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
bpsolver 2008-06-27SAT 57.9012 58.1852

General information on the benchmark

Namecsp/travellingSalesman-25/
normalized-tsp-25-523_ext.xml
MD5SUMa3c9be0c891d85f7c4694b452ebfd1e1
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark3.19851
Satisfiable
(Un)Satisfiability was proved
Number of variables76
Number of constraints350
Maximum constraint arity3
Maximum domain size1001
Number of constraints which are defined in extension350
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.02	c bpsolver version 6.27.2008
0.00/0.02	c converting(HOME/instance-1051497-1215053742)
0.49/0.57	c Converted in 152 ms
0.49/0.57	c solving(HOME/instance-1051497-1215053742,1800000)
57.81/58.18	c (ffc_inout)
57.81/58.18	s SATISFIABLE
57.81/58.18	v 15 17 13 10 18 3 14 0 3 0 16 6 17 4 19 4 20 1 6 0 22 15 23 2 25 4 24 24 5 1 4 2 9 7 12 15 10 11 8 11 11 1 2 0 7 17 21 12 1 8 27 30 30 30 36 40 44 45 45 60 62 66 90 91 93 100 115 126 137 138 138 155 167 175 175 0 
57.81/58.18	
57.81/58.18	c Time=57317 ms
57.81/58.18

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1051497-1215053742/watcher-1051497-1215053742 -o /tmp/evaluation-result-1051497-1215053742/solver-1051497-1215053742 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solver HOME/instance-1051497-1215053742 1800 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 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: 2.00 2.02 2.04 4/81 24312
/proc/meminfo: memFree=1809960/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=4780 CPUtime=0
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 552 0 0 0 0 0 0 0 18 0 1 0 1984343912 4894720 270 996147200 134512640 134990860 4294956112 18446744073709551615 134530848 0 0 4096 0 0 0 0 17 1 0 0
/proc/24312/statm: 1195 278 72 116 0 706 0

[startup+0.0170579 s]
/proc/loadavg: 2.00 2.02 2.04 4/81 24312
/proc/meminfo: memFree=1809960/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=55720 CPUtime=0
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 901 0 0 0 0 0 0 0 18 0 1 0 1984343912 57057280 617 996147200 134512640 134990860 4294956112 18446744073709551615 134540538 0 0 4096 2 0 0 0 17 1 0 0
/proc/24312/statm: 13930 617 129 116 0 13441 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 55720

[startup+0.101076 s]
/proc/loadavg: 2.00 2.02 2.04 4/81 24312
/proc/meminfo: memFree=1809960/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=56080 CPUtime=0.08
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 1106 0 0 0 3 5 0 0 18 0 1 0 1984343912 57425920 819 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/24312/statm: 14020 819 176 116 0 13531 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 56080

[startup+0.301099 s]
/proc/loadavg: 2.00 2.02 2.04 4/81 24312
/proc/meminfo: memFree=1809960/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=56080 CPUtime=0.29
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 1131 0 0 0 8 21 0 0 19 0 1 0 1984343912 57425920 844 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/24312/statm: 14020 844 176 116 0 13531 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 56080

[startup+0.701147 s]
/proc/loadavg: 2.00 2.02 2.04 4/81 24312
/proc/meminfo: memFree=1809960/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=64172 CPUtime=0.68
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 2361 0 0 0 28 40 0 0 23 0 1 0 1984343912 65712128 1965 996147200 134512640 134990860 4294956112 18446744073709551615 134746344 0 0 4096 2 0 0 0 17 1 0 0
/proc/24312/statm: 16043 1965 189 116 0 15554 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 64172

[startup+1.50124 s]
/proc/loadavg: 2.00 2.02 2.04 3/82 24313
/proc/meminfo: memFree=1800928/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=64172 CPUtime=1.49
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3044 0 0 0 108 41 0 0 25 0 1 0 1984343912 65712128 2648 996147200 134512640 134990860 4294956112 18446744073709551615 134746870 0 0 4096 2 0 0 0 17 1 0 0
/proc/24312/statm: 16043 2648 189 116 0 15554 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 64172

[startup+3.10143 s]
/proc/loadavg: 2.00 2.02 2.04 3/82 24313
/proc/meminfo: memFree=1798304/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=3.08
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3674 0 0 0 267 41 0 0 25 0 2 0 1984343912 76201984 3278 996147200 134512640 134990860 4294956112 18446744073709551615 134716952 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3278 195 116 0 18115 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 74416

[startup+6.30281 s]
/proc/loadavg: 2.00 2.02 2.04 3/83 24314
/proc/meminfo: memFree=1796952/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=6.26
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 585 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134746436 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 74416

[startup+12.7016 s]
/proc/loadavg: 2.00 2.02 2.04 3/83 24314
/proc/meminfo: memFree=1796888/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=12.63
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 1222 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134716955 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 74416

[startup+25.5011 s]
/proc/loadavg: 2.07 2.04 2.04 3/83 24314
/proc/meminfo: memFree=1796952/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=25.37
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 2496 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134716928 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 25.37
Current children cumulated vsize (KiB) 74416

[startup+51.1012 s]
/proc/loadavg: 2.04 2.03 2.04 3/83 24314
/proc/meminfo: memFree=1796824/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=50.85
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 5044 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134746342 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 50.85
Current children cumulated vsize (KiB) 74416

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

[startup+54.3015 s]
/proc/loadavg: 2.04 2.03 2.04 3/83 24314
/proc/meminfo: memFree=1796824/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=54.03
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 5362 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134716952 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 54.03
Current children cumulated vsize (KiB) 74416

[startup+55.9017 s]
/proc/loadavg: 2.04 2.03 2.04 3/83 24314
/proc/meminfo: memFree=1796824/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=55.62
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 5521 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134746531 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 55.62
Current children cumulated vsize (KiB) 74416

[startup+57.5029 s]
/proc/loadavg: 2.04 2.03 2.04 3/83 24314
/proc/meminfo: memFree=1796824/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=57.22
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 5681 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134716933 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 57.22
Current children cumulated vsize (KiB) 74416

[startup+57.903 s]
/proc/loadavg: 2.04 2.03 2.04 3/83 24314
/proc/meminfo: memFree=1796824/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=57.61
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 5720 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134716955 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 57.61
Current children cumulated vsize (KiB) 74416

[startup+58.103 s]
/proc/loadavg: 2.04 2.03 2.04 3/83 24314
/proc/meminfo: memFree=1796824/2055920 swapFree=4179804/4192956
[pid=24312] ppid=24310 vsize=74416 CPUtime=57.81
/proc/24312/stat : 24312 (bprolog) R 24310 24312 22580 0 -1 4194304 3687 0 0 0 5740 41 0 0 25 0 2 0 1984343912 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 134716955 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/24312/statm: 18604 3291 195 116 0 18115 0
[pid=24312/tid=24314] ppid=24310 vsize=74416 CPUtime=0
/proc/24312/task/24314/stat : 24314 (bprolog) S 24310 24312 22580 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 1984344185 76201984 3291 996147200 134512640 134990860 4294956112 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 57.81
Current children cumulated vsize (KiB) 74416

Child status: 0
Real time (s): 58.1852
CPU time (s): 57.9012
CPU user time (s): 57.4833
CPU system time (s): 0.417936
CPU usage (%): 99.5119
Max. virtual memory (cumulated for all children) (KiB): 74416

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 57.4833
system time used= 0.417936
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3687
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= 4
involuntary context switches= 1870

runsolver used 0.056991 second user time and 0.165974 second system time

The end

Launcher Data (download as text)

Begin job on node66 at 2008-07-03 04:55:42
IDJOB=1051497
IDBENCH=55489
IDSOLVER=347
FILE ID=node66/1051497-1215053742
PBS_JOBID= 7875044
Free space on /tmp= 66528 MiB

SOLVER NAME= bpsolver 2008-06-27
BENCH NAME= CPAI08/csp/travellingSalesman-25/normalized-tsp-25-523_ext.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1051497-1215053742/watcher-1051497-1215053742 -o /tmp/evaluation-result-1051497-1215053742/solver-1051497-1215053742 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solver HOME/instance-1051497-1215053742 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= a3c9be0c891d85f7c4694b452ebfd1e1
RANDOM SEED=338262941

node66.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.213
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		: 3000.213
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:       1810376 kB
Buffers:         15252 kB
Cached:         123492 kB
SwapCached:       6980 kB
Active:         127252 kB
Inactive:        63936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810376 kB
SwapTotal:     4192956 kB
SwapFree:      4179804 kB
Dirty:            1376 kB
Writeback:           0 kB
Mapped:          68648 kB
Slab:            39336 kB
Committed_AS:  4013924 kB
PageTables:       2012 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= 66528 MiB
End job on node66 at 2008-07-03 04:56:40