Trace number 1544553

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
SAT07 reference solver: SATzilla RANDOMSAT 6.47701 6.48212

General information on the benchmark

NameRANDOM/MEDIUM/7SAT/SATISFIABLE/70/
unif-k7-r89-v70-c6230-S754967851-033.cnf
MD5SUMca6438c2650e1f6095e022fd7ba3c2d0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.35679
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses6230
Sum of the clauses size43610
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 56230

Solver Data 

6.37/6.48	c run March_dl for 5 seconds ... 
6.37/6.48	c Bin: Executing march_dl
6.37/6.48	c child exit by a signal
6.37/6.48	c march_dl returned code 137.
6.37/6.48	c run saps (UBCSAT implementation) for 2 seconds ... 
6.37/6.48	c Bin: Executing ubcsat2006
6.37/6.48	c child exited successfully
6.37/6.48	c ubcsat2006 returned code 10.
6.37/6.48	# 
6.37/6.48	# UBCSAT version 1.1.0pp
6.37/6.48	# 
6.37/6.48	# http://www.satlib.org/ubcsat
6.37/6.48	# 
6.37/6.48	# ubcsat -h for help
6.37/6.48	# 
6.37/6.48	#  -alg saps
6.37/6.48	#  -runs 1 
6.37/6.48	#  -cutoff 4294967295 
6.37/6.48	#  -timeout 2.000000 
6.37/6.48	#  -gtimeout 0.000000 
6.37/6.48	#  -noimprove 0 
6.37/6.48	#  -target 0 
6.37/6.48	#  -wtarget 0.000000 
6.37/6.48	#  -seed 1238611474 
6.37/6.48	#  -solve 0 
6.37/6.48	#  -find,-numsol 0 
6.37/6.48	#  -findunique 0 
6.37/6.48	#  -srestart 0 
6.37/6.48	#  -prestart 0.000000 
6.37/6.48	#  -drestart 0 
6.37/6.48	# 
6.37/6.48	#  -alpha 1.300000 
6.37/6.48	#  -rho 0.100000 
6.37/6.48	#  -ps 0.050000 
6.37/6.48	#  -wp 0.010000 
6.37/6.48	#  -sapsthresh -0.100000 
6.37/6.48	# 
6.37/6.48	# UBCSAT default output: 
6.37/6.48	#    'ubcsat -r out null' to suppress, 'ubcsat -hc' for customization help
6.37/6.48	# 
6.37/6.48	# 
6.37/6.48	# Output Columns: |run|found|best|beststep|steps|
6.37/6.48	# 
6.37/6.48	# run: Run Number
6.37/6.48	# found: Target Solution Quality Found? (1 => yes)
6.37/6.48	# best: Best (Lowest) # of False Clauses Found
6.37/6.48	# beststep: Step of Best (Lowest) # of False Clauses Found
6.37/6.48	# steps: Total Number of Search Steps
6.37/6.48	# 
6.37/6.48	#       F  Best       Step      Total 
6.37/6.48	#   Run N Sol'n         of     Search 
6.37/6.48	#   No. D Found       Best      Steps 
6.37/6.48	# 
6.37/6.48	      1 1     0     137407     137407 
6.37/6.48	
6.37/6.48	
6.37/6.48	Variables = 70
6.37/6.48	Clauses = 6230
6.37/6.48	TotalLiterals = 43610
6.37/6.48	TotalCPUTimeElapsed = 1.400     
6.37/6.48	FlipsPerSecond = 98148  
6.37/6.48	RunsExecuted = 1
6.37/6.48	SuccessfulRuns = 1
6.37/6.48	PercentSuccess = 100.00
6.37/6.48	Steps_Mean = 137407
6.37/6.48	Steps_CoeffVariance = 0
6.37/6.48	Steps_Median = 137407
6.37/6.48	CPUTime_Mean = 1.4
6.37/6.48	CPUTime_CoeffVariance = 0
6.37/6.48	CPUTime_Median = 1.4
6.37/6.48	
6.37/6.48	
6.37/6.48	c 
6.37/6.48	c UBCSAT version 1.1.0pp
6.37/6.48	c 
6.37/6.48	c http://www.satlib.org/ubcsat
6.37/6.48	c 
6.37/6.48	c ubcsat -h for help
6.37/6.48	c 
6.37/6.48	c  -runs 1 
6.37/6.48	c  -cutoff 4294967295 
6.37/6.48	c  -timeout 2.000000 
6.37/6.48	c  -gtimeout 0.000000 
6.37/6.48	c  -noimprove 0 
6.37/6.48	c  -target 0 
6.37/6.48	c  -wtarget 0.000000 
6.37/6.48	c  -seed 1238611474 
6.37/6.48	c  -solve 0 
6.37/6.48	c  -find,-numsol 0 
6.37/6.48	c  -findunique 0 
6.37/6.48	c  -srestart 0 
6.37/6.48	c  -prestart 0.000000 
6.37/6.48	c  -drestart 0 
6.37/6.48	c 
6.37/6.48	c  -alpha 1.300000 
6.37/6.48	c  -rho 0.100000 
6.37/6.48	c  -ps 0.050000 
6.37/6.48	c  -wp 0.010000 
6.37/6.48	c  -sapsthresh -0.100000 
6.37/6.48	c 
6.37/6.48	s SATISFIABLE
6.37/6.48	v  1 -2 -3 -4 5 -6 -7 -8 9 10
6.37/6.48	v  -11 12 13 -14 15 16 -17 -18 -19 -20
6.37/6.48	v  21 -22 23 24 -25 -26 27 28 29 -30
6.37/6.48	v  31 32 33 34 -35 36 37 38 39 -40
6.37/6.48	v  41 -42 43 44 45 -46 47 48 -49 50
6.37/6.48	v  51 52 -53 -54 55 -56 -57 -58 -59 -60
6.37/6.48	v  -61 62 63 64 65 66 67 -68 69 70
6.37/6.48	v  0
6.37/6.48	c SATZILLA_TIME=6.470000

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1544553-1238611474/watcher-1544553-1238611474 -o /tmp/evaluation-result-1544553-1238611474/solver-1544553-1238611474 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2007_R HOME/instance-1544553-1238611474.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): 1800 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: 0.99 0.97 0.73 3/64 8458
/proc/meminfo: memFree=1310184/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=0
/proc/8458/stat : 8458 (SATzilla2007_R) R 8456 8458 8391 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 1133813455 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 0 0 0
/proc/8458/statm: 360 110 95 260 0 84 0
[pid=8459] ppid=8458 vsize=636 CPUtime=0
/proc/8459/stat : 8459 (march_dl) R 8458 8458 8391 0 -1 4194304 86 0 0 0 0 0 0 0 18 0 1 0 1133813455 651264 81 1992294400 134512640 134996440 4294956272 18446744073709551615 134724252 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8459/statm: 159 81 50 118 0 38 0

[startup+0.0272869 s]
/proc/loadavg: 0.99 0.97 0.73 3/64 8458
/proc/meminfo: memFree=1310184/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=0
/proc/8458/stat : 8458 (SATzilla2007_R) S 8456 8458 8391 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1133813455 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8458/statm: 360 110 95 260 0 84 0
[pid=8459] ppid=8458 vsize=1404 CPUtime=0.02
/proc/8459/stat : 8459 (march_dl) R 8458 8458 8391 0 -1 4194304 434 0 0 0 2 0 0 0 19 0 1 0 1133813455 1437696 250 1992294400 134512640 134996440 4294956272 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8459/statm: 351 258 57 118 0 230 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2844

[startup+0.1023 s]
/proc/loadavg: 0.99 0.97 0.73 3/64 8458
/proc/meminfo: memFree=1310184/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=0
/proc/8458/stat : 8458 (SATzilla2007_R) S 8456 8458 8391 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1133813455 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8458/statm: 360 110 95 260 0 84 0
[pid=8459] ppid=8458 vsize=2264 CPUtime=0.09
/proc/8459/stat : 8459 (march_dl) R 8458 8458 8391 0 -1 4194304 1021 0 0 0 9 0 0 0 19 0 1 0 1133813455 2318336 336 1992294400 134512640 134996440 4294956272 18446744073709551615 134583852 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8459/statm: 566 336 67 118 0 445 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3704

[startup+0.301334 s]
/proc/loadavg: 0.99 0.97 0.73 3/64 8458
/proc/meminfo: memFree=1310184/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=0
/proc/8458/stat : 8458 (SATzilla2007_R) S 8456 8458 8391 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1133813455 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8458/statm: 360 110 95 260 0 84 0
[pid=8459] ppid=8458 vsize=2264 CPUtime=0.29
/proc/8459/stat : 8459 (march_dl) R 8458 8458 8391 0 -1 4194304 1026 0 0 0 29 0 0 0 21 0 1 0 1133813455 2318336 341 1992294400 134512640 134996440 4294956272 18446744073709551615 134583572 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8459/statm: 566 341 67 118 0 445 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3704

[startup+0.702407 s]
/proc/loadavg: 0.99 0.97 0.73 3/64 8458
/proc/meminfo: memFree=1310184/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=0
/proc/8458/stat : 8458 (SATzilla2007_R) S 8456 8458 8391 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1133813455 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8458/statm: 360 110 95 260 0 84 0
[pid=8459] ppid=8458 vsize=2396 CPUtime=0.69
/proc/8459/stat : 8459 (march_dl) R 8458 8458 8391 0 -1 4194304 1072 0 0 0 69 0 0 0 25 0 1 0 1133813455 2453504 387 1992294400 134512640 134996440 4294956272 18446744073709551615 134583400 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8459/statm: 599 387 67 118 0 478 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3836

[startup+1.50155 s]
/proc/loadavg: 0.99 0.97 0.74 2/66 8460
/proc/meminfo: memFree=1303632/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=0
/proc/8458/stat : 8458 (SATzilla2007_R) S 8456 8458 8391 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1133813455 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8458/statm: 360 110 95 260 0 84 0
[pid=8459] ppid=8458 vsize=6908 CPUtime=1.49
/proc/8459/stat : 8459 (march_dl) R 8458 8458 8391 0 -1 4194304 2565 0 0 0 145 4 0 0 25 0 1 0 1133813455 7073792 1613 1992294400 134512640 134996440 4294956272 18446744073709551615 134542411 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8459/statm: 1727 1613 72 118 0 1606 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8348

[startup+3.10184 s]
/proc/loadavg: 0.99 0.97 0.74 2/66 8460
/proc/meminfo: memFree=1303312/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=0
/proc/8458/stat : 8458 (SATzilla2007_R) S 8456 8458 8391 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1133813455 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8458/statm: 360 110 95 260 0 84 0
[pid=8459] ppid=8458 vsize=7788 CPUtime=3.09
/proc/8459/stat : 8459 (march_dl) R 8458 8458 8391 0 -1 4194304 2663 0 0 0 304 5 0 0 25 0 1 0 1133813455 7974912 1709 1992294400 134512640 134996440 4294956272 18446744073709551615 134514943 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8459/statm: 1947 1709 74 118 0 1826 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 9228

[startup+6.30142 s]
/proc/loadavg: 0.99 0.97 0.74 2/66 8461
/proc/meminfo: memFree=1308952/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=4.99
/proc/8458/stat : 8458 (SATzilla2007_R) S 8456 8458 8391 0 -1 4194304 134 2663 0 0 0 0 494 5 16 0 1 0 1133813455 1474560 111 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/8458/statm: 360 111 96 260 0 84 0
[pid=8461] ppid=8458 vsize=6188 CPUtime=1.29
/proc/8461/stat : 8461 (ubcsat2006) R 8458 8458 8391 0 -1 4194304 363 0 0 0 124 5 0 0 25 0 1 0 1133813955 6336512 346 1992294400 134512640 134777720 4294956112 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8461/statm: 1547 346 156 64 0 1128 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 7628

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

[startup+6.40144 s]
/proc/loadavg: 0.99 0.97 0.74 2/66 8461
/proc/meminfo: memFree=1308952/2055920 swapFree=4174052/4192956
[pid=8458] ppid=8456 vsize=1440 CPUtime=4.99
/proc/8458/stat : 8458 (SATzilla2007_R) S 8456 8458 8391 0 -1 4194304 134 2663 0 0 0 0 494 5 16 0 1 0 1133813455 1474560 111 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/8458/statm: 360 111 96 260 0 84 0
[pid=8461] ppid=8458 vsize=6188 CPUtime=1.38
/proc/8461/stat : 8461 (ubcsat2006) R 8458 8458 8391 0 -1 4194304 363 0 0 0 133 5 0 0 25 0 1 0 1133813955 6336512 346 1992294400 134512640 134777720 4294956112 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8461/statm: 1547 346 156 64 0 1128 0
Current children cumulated CPU time (s) 6.37
Current children cumulated vsize (KiB) 7628

Child status: 10
Real time (s): 6.48212
CPU time (s): 6.47701
CPU user time (s): 6.36203
CPU system time (s): 0.114982
CPU usage (%): 99.9212
Max. virtual memory (cumulated for all children) (KiB): 9228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.36203
system time used= 0.114982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3196
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= 7
involuntary context switches= 29

runsolver used 0.008998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node17 at 2009-04-01 20:44:34
IDJOB=1544553
IDBENCH=70504
IDSOLVER=557
FILE ID=node17/1544553-1238611474
PBS_JOBID= 9073684
Free space on /tmp= 66340 MiB

SOLVER NAME= SAT07 reference solver: SATzilla RANDOM
BENCH NAME= SAT09/RANDOM/MEDIUM/7SAT/SATISFIABLE/70/unif-k7-r89-v70-c6230-S754967851-033.cnf
COMMAND LINE= HOME/SATzilla2007_R BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544553-1238611474/watcher-1544553-1238611474 -o /tmp/evaluation-result-1544553-1238611474/solver-1544553-1238611474 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2007_R HOME/instance-1544553-1238611474.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ca6438c2650e1f6095e022fd7ba3c2d0
RANDOM SEED=549682813

node17.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		: 3000.265
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:       1310664 kB
Buffers:        107796 kB
Cached:         527892 kB
SwapCached:      12692 kB
Active:         223668 kB
Inactive:       426148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1310664 kB
SwapTotal:     4192956 kB
SwapFree:      4174052 kB
Dirty:            8512 kB
Writeback:           0 kB
Mapped:          19696 kB
Slab:            81460 kB
Committed_AS:  3082348 kB
PageTables:       1464 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= 66332 MiB
End job on node17 at 2009-04-01 20:44:41