Trace number 2068742

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 09SAT 24.7682 25.0315

General information on the benchmark

Namecsp/ukHerald/
normalized-crossword-m1-uk-23-08.xml
MD5SUM590b5343bea2797d670e58d4c2e5f3ac
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.16367
Satisfiable
(Un)Satisfiability was proved
Number of variables454
Number of constraints3246
Maximum constraint arity16
Maximum domain size26
Number of constraints which are defined in extension172
Number of constraints which are defined in intension3074
Global constraints used (with number of constraints)

Solver Data

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.03	c converting(HOME/instance-2068742-1247348202)
7.41/7.52	c Converted in 2420 ms
9.09/9.24	c solving(HOME/instance-2068742-1247348202,1800000)
9.09/9.24	c solving(HOME/instance-2068742-1247348202,1800000)
24.74/25.00	c (ffc_inout)
24.74/25.00	s SATISFIABLE
24.74/25.00	v 18 4 0 3 20 18 19 12 8 13 8 2 0 1 6 0 11 0 6 14 18 14 12 12 0 19 4 0 0 3 4 13 14 12 0 0 15 0 3 0 13 0 2 0 12 15 0 17 8 3 4 8 2 19 8 2 11 0 13 3 19 0 6 0 13 8 7 0 0 5 0 21 0 18 2 4 11 8 0 4 13 4 6 0 17 4 2 7 0 19 19 4 11 2 0 6 4 3 0 11 8 19 4 19 0 6 4 0 20 1 4 5 14 17 17 0 3 14 1 4 18 4 17 4 11 4 19 18 13 0 3 0 1 4 0 3 18 12 4 6 12 0 17 4 7 4 0 17 18 2 4 0 19 17 7 4 0 11 0 14 17 0 11 4 3 0 24 0 10 3 8 0 6 17 0 15 7 4 13 17 0 13 6 4 12 0 17 0 7 12 0 6 12 0 2 4 4 13 0 8 17 0 0 8 17 6 20 13 13 0 22 0 1 3 0 3 0 19 4 6 20 11 0 1 14 14 12 13 0 1 10 0 2 0 17 8 3 8 12 0 12 2 17 4 14 13 6 0 13 4 18 0 4 17 8 2 18 18 8 12 18 7 4 0 5 2 0 1 0 11 6 0 3 8 3 0 4 10 0 8 12 0 10 0 12 3 0 3 14 18 7 0 7 0 0 1 0 1 11 0 3 5 0 2 4 19 7 0 17 0 17 4 0 3 17 8 0 13 10 0 12 0 7 4 0 15 1 4 2 0 11 12 5 0 0 17 3 11 4 8 15 14 0 0 8 19 20 3 0 12 0 17 19 20 1 0 3 0 19 4 18 1 8 17 11 8 13 13 3 4 21 8 12 13 0 0 8 3 0 13 2 14 14 13 2 7 0 18 13 8 3 14 19 19 4 17 4 3 2 0 8 17 13 4 3 4 2 7 8 3 13 0 18 4 19 11 8 13 4 4 6 14 19 8 18 4 22 7 4 17 4 8 13 19 17 4 0 3 4 17 18 4 13 18 0 19 4 13 14 18 4 17 0 6 
24.74/25.02	
24.74/25.02	c Time=17180 ms Backtracks=151
24.74/25.02	

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-2068742-1247348202/watcher-2068742-1247348202 -o /tmp/evaluation-result-2068742-1247348202/solver-2068742-1247348202 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2068742-1247348202 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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 16191
/proc/meminfo: memFree=1807752/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=3004 CPUtime=0
/proc/16191/stat : 16191 (sh) R 16189 16191 16154 0 -1 4194304 57 0 0 0 0 0 0 0 20 0 1 0 21884025 3076096 41 996147200 4194304 4889804 548682068864 18446744073709551615 258936459296 0 0 4096 0 0 0 0 17 1 0 0
/proc/16191/statm: 751 41 31 169 0 9 0

[startup+0.063961 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 16191
/proc/meminfo: memFree=1807752/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=62208 CPUtime=0.05
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 1146 0 0 0 2 3 0 0 20 0 1 0 21884025 63700992 859 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16191/statm: 15552 859 174 144 0 15036 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 62208

[startup+0.101962 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 16191
/proc/meminfo: memFree=1807752/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=62208 CPUtime=0.09
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 1151 0 0 0 3 6 0 0 20 0 1 0 21884025 63700992 864 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16191/statm: 15552 864 174 144 0 15036 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62208

[startup+0.301997 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 16191
/proc/meminfo: memFree=1807752/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=62208 CPUtime=0.28
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 1174 0 0 0 9 19 0 0 21 0 1 0 21884025 63700992 887 996147200 134512640 135105188 4294956096 18446744073709551615 134566046 0 0 4096 2 0 0 0 17 1 0 0
/proc/16191/statm: 15552 887 174 144 0 15036 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 62208

[startup+0.70107 s]
/proc/loadavg: 1.85 1.97 1.99 4/81 16191
/proc/meminfo: memFree=1807752/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=62208 CPUtime=0.68
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 1223 0 0 0 22 46 0 0 25 0 1 0 21884025 63700992 936 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16191/statm: 15552 936 174 144 0 15036 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 62208

[startup+1.50122 s]
/proc/loadavg: 1.85 1.97 1.99 3/82 16192
/proc/meminfo: memFree=1804096/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=62208 CPUtime=1.46
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 1318 0 0 0 46 100 0 0 25 0 1 0 21884025 63700992 1031 996147200 134512640 135105188 4294956096 18446744073709551615 5092257 0 0 4096 2 0 0 0 17 1 0 0
/proc/16191/statm: 15552 1031 174 144 0 15036 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 62208

[startup+3.10151 s]
/proc/loadavg: 1.86 1.97 1.99 3/82 16192
/proc/meminfo: memFree=1803200/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=62208 CPUtime=3.06
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 1359 0 0 0 95 211 0 0 25 0 1 0 21884025 63700992 1072 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/16191/statm: 15552 1072 176 144 0 15036 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 62208

[startup+6.30109 s]
/proc/loadavg: 1.86 1.97 1.99 3/82 16192
/proc/meminfo: memFree=1801920/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=62208 CPUtime=6.22
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 1434 0 0 0 192 430 0 0 25 0 1 0 21884025 63700992 1147 996147200 134512640 135105188 4294956096 18446744073709551615 134566444 0 0 4096 2 0 0 0 17 1 0 0
/proc/16191/statm: 15552 1147 177 144 0 15036 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 62208

[startup+12.7013 s]
/proc/loadavg: 1.88 1.97 1.99 3/83 16193
/proc/meminfo: memFree=1757944/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=147744 CPUtime=12.55
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 22661 0 0 0 742 513 0 0 25 0 2 0 21884025 151289856 12075 996147200 134512640 135105188 4294956096 18446744073709551615 134748364 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/16191/statm: 36936 12075 201 144 0 36420 0
[pid=16191/tid=16193] ppid=16189 vsize=147744 CPUtime=0
/proc/16191/task/16193/stat : 16193 (bprolog) S 16189 16191 16154 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 21885005 151289856 12075 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 147744

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

[startup+19.1024 s]
/proc/loadavg: 1.89 1.97 1.99 3/83 16193
/proc/meminfo: memFree=1755320/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=147744 CPUtime=18.9
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 23126 0 0 0 1376 514 0 0 25 0 2 0 21884025 151289856 12540 996147200 134512640 135105188 4294956096 18446744073709551615 134629887 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/16191/statm: 36936 12540 201 144 0 36420 0
[pid=16191/tid=16193] ppid=16189 vsize=147744 CPUtime=0
/proc/16191/task/16193/stat : 16193 (bprolog) S 16189 16191 16154 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 21885005 151289856 12540 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 18.9
Current children cumulated vsize (KiB) 147744

[startup+22.302 s]
/proc/loadavg: 1.90 1.97 1.99 3/83 16193
/proc/meminfo: memFree=1754616/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=147744 CPUtime=22.06
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 23310 0 0 0 1692 514 0 0 25 0 2 0 21884025 151289856 12724 996147200 134512640 135105188 4294956096 18446744073709551615 134748401 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/16191/statm: 36936 12724 201 144 0 36420 0
[pid=16191/tid=16193] ppid=16189 vsize=147744 CPUtime=0
/proc/16191/task/16193/stat : 16193 (bprolog) S 16189 16191 16154 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 21885005 151289856 12724 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 22.06
Current children cumulated vsize (KiB) 147744

[startup+23.9023 s]
/proc/loadavg: 1.90 1.97 1.99 3/83 16193
/proc/meminfo: memFree=1754168/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=147744 CPUtime=23.65
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 23439 0 0 0 1851 514 0 0 25 0 2 0 21884025 151289856 12853 996147200 134512640 135105188 4294956096 18446744073709551615 134748415 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/16191/statm: 36936 12853 201 144 0 36420 0
[pid=16191/tid=16193] ppid=16189 vsize=147744 CPUtime=0
/proc/16191/task/16193/stat : 16193 (bprolog) S 16189 16191 16154 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 21885005 151289856 12853 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 23.65
Current children cumulated vsize (KiB) 147744

[startup+24.7014 s]
/proc/loadavg: 1.90 1.97 1.99 3/83 16193
/proc/meminfo: memFree=1753784/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=147744 CPUtime=24.44
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 23502 0 0 0 1930 514 0 0 25 0 2 0 21884025 151289856 12916 996147200 134512640 135105188 4294956096 18446744073709551615 134748547 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/16191/statm: 36936 12916 201 144 0 36420 0
[pid=16191/tid=16193] ppid=16189 vsize=147744 CPUtime=0
/proc/16191/task/16193/stat : 16193 (bprolog) S 16189 16191 16154 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 21885005 151289856 12916 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 24.44
Current children cumulated vsize (KiB) 147744

[startup+24.9015 s]
/proc/loadavg: 1.90 1.97 1.99 3/83 16193
/proc/meminfo: memFree=1753784/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=147744 CPUtime=24.64
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 23563 0 0 0 1950 514 0 0 25 0 2 0 21884025 151289856 12977 996147200 134512640 135105188 4294956096 18446744073709551615 134749070 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/16191/statm: 36936 12977 201 144 0 36420 0
[pid=16191/tid=16193] ppid=16189 vsize=147744 CPUtime=0
/proc/16191/task/16193/stat : 16193 (bprolog) S 16189 16191 16154 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 21885005 151289856 12977 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 24.64
Current children cumulated vsize (KiB) 147744

[startup+25.0015 s]
/proc/loadavg: 1.90 1.97 1.99 3/83 16193
/proc/meminfo: memFree=1753784/2055920 swapFree=4192812/4192956
[pid=16191] ppid=16189 vsize=147744 CPUtime=24.74
/proc/16191/stat : 16191 (bprolog) R 16189 16191 16154 0 -1 4194304 23565 0 0 0 1960 514 0 0 25 0 2 0 21884025 151289856 12979 996147200 134512640 135105188 4294956096 18446744073709551615 134718096 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/16191/statm: 36936 12979 201 144 0 36420 0
[pid=16191/tid=16193] ppid=16189 vsize=147744 CPUtime=0
/proc/16191/task/16193/stat : 16193 (bprolog) S 16189 16191 16154 0 -1 4194368 2 0 0 0 0 0 0 0 25 0 2 0 21885005 151289856 12979 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 24.74
Current children cumulated vsize (KiB) 147744

Child status: 0
Real time (s): 25.0315
CPU time (s): 24.7682
CPU user time (s): 19.615
CPU system time (s): 5.15322
CPU usage (%): 98.9483
Max. virtual memory (cumulated for all children) (KiB): 148112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.615
system time used= 5.15322
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 23565
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= 5
involuntary context switches= 1051

runsolver used 0.034994 second user time and 0.098984 second system time

The end

Launcher Data

Begin job on node45 at 2009-07-11 23:36:42
IDJOB=2068742
IDBENCH=54917
IDSOLVER=770
FILE ID=node45/2068742-1247348202
PBS_JOBID= 9506843
Free space on /tmp= 66352 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/ukHerald/normalized-crossword-m1-uk-23-08.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2068742-1247348202/watcher-2068742-1247348202 -o /tmp/evaluation-result-2068742-1247348202/solver-2068742-1247348202 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2068742-1247348202 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 590b5343bea2797d670e58d4c2e5f3ac
RANDOM SEED=1018948503

node45.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		: 3000.281
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		: 3000.281
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:       1808232 kB
Buffers:         18072 kB
Cached:          95284 kB
SwapCached:          0 kB
Active:         144240 kB
Inactive:        53708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1808232 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3756 kB
Writeback:           0 kB
Mapped:         105088 kB
Slab:            34900 kB
Committed_AS:   256244 kB
PageTables:       1960 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= 66352 MiB
End job on node45 at 2009-07-11 23:37:08