0.00/0.00 c Mistral 01082018
0.00/0.00 o 0
0.00/0.00 o 98
0.00/0.00 o 100
0.00/0.00 o 132
0.00/0.00 o 225
0.00/0.00 o 313
0.00/0.00 o 336
0.00/0.00 o 395
0.00/0.00 o 411
0.00/0.00 o 439
0.00/0.00 o 469
0.00/0.00 o 470
0.00/0.00 o 482
0.00/0.00 o 489
0.00/0.00 o 525
0.00/0.00 o 534
0.00/0.00 o 556
0.00/0.00 o 557
0.00/0.00 o 593
0.00/0.00 o 599
0.00/0.00 o 608
0.00/0.00 o 622
0.00/0.00 o 633
0.00/0.00 o 641
0.00/0.00 o 655
0.00/0.00 o 683
0.00/0.00 o 684
0.00/0.00 o 689
0.00/0.00 o 697
0.00/0.00 o 734
0.00/0.00 o 747
0.00/0.00 o 784
0.00/0.00 o 836
0.00/0.00 o 840
0.00/0.00 o 881
0.00/0.00 o 914
0.00/0.00 o 932
0.00/0.00 o 933
0.00/0.00 o 988
0.00/0.00 o 997
0.00/0.00 o 998
0.00/0.00 o 1006
0.00/0.00 o 1039
0.00/0.01 o 1061
0.00/0.01 o 1062
0.00/0.01 o 1084
0.00/0.01 o 1110
0.00/0.01 o 1126
0.00/0.02 o 1127
0.00/0.02 o 1128
1.89/1.90 s OPTIMUM FOUND
1.89/1.90 v <instantiation type="optimum" cost="1128">
1.89/1.90 v <list> x[0] x[1] x[2] x[3] x[4] x[5] x[6] x[7] x[8] x[9] x[10] x[11] x[12] x[13] x[14] x[15] x[16] x[17] x[18] x[19] x[20] x[21] x[22] x[23] x[24] x[25] x[26] x[27] x[28] x[29] x[30] x[31] x[32] x[33] x[34] x[35] x[36] x[37] x[38] x[39] </list>
1.89/1.90 v <values> 0 1 1 0 0 1 0 1 1 0 1 0 1 1 1 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 0 1 1 0 0 1 </values>
1.89/1.90 v </instantiation>
runsolver version 3.4.0 (svn: 3012) Copyright (C) 2010-2013 Olivier ROUSSEL
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.
NUMA information:
number of nodes: 2
memory of node 0: 16374 MiB (9712 MiB free)
memory of node 1: 16384 MiB (13767 MiB free)
node distances:
10 21
21 10
command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4312713-1534700157/watcher-4312713-1534700157 -o /tmp/evaluation-result-4312713-1534700157/solver-4312713-1534700157 -C 252 -W 252 -M 15500 --bin-var /tmp/runsolver-exch-node150-1534698881-28440 --watchdog 312 MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 1274742899 HOME/instance-4312713-1534700157.xml
running on 4 cores: 0,2,4,6
Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 252 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 282 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 252 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
Linux 3.10.0-514.16.1.el7.x86_64
Starting watchdog thread
solver pid=29315, runsolver pid=29312
Current StackSize limit: 8192 KiB
[startup+0.100142 s]*
/proc/loadavg: 2.01 2.00 1.52 3/187 29316
/proc/meminfo: memFree=24042768/32770624 swapFree=67108792/67108860
[pid=29315] ppid=29312 vsize=28896 memory=3736 CPUtime=0.1 cores=0,2,4,6
/proc/29315/stat : 29315 (MistralXCSP) R 29312 29315 28409 0 -1 4202496 1097 0 0 0 10 0 0 0 20 0 1 0 287578956 29589504 934 33554432000 4194304 7499544 140726875231696 140726875228696 5770953 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0 9598848 9604096 22040576 140726875239538 140726875239688 140726875239688 140726875242441 0
/proc/29315/statm: 7224 934 756 807 0 215 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 28896 KiB
Current children cumulated memory: 3736 KiB
[startup+0.209193 s]*
/proc/loadavg: 2.01 2.00 1.52 3/187 29316
/proc/meminfo: memFree=24042768/32770624 swapFree=67108792/67108860
[pid=29315] ppid=29312 vsize=28896 memory=3736 CPUtime=0.21 cores=0,2,4,6
/proc/29315/stat : 29315 (MistralXCSP) R 29312 29315 28409 0 -1 4202496 1097 0 0 0 21 0 0 0 20 0 1 0 287578956 29589504 934 33554432000 4194304 7499544 140726875231696 140726875228696 5163864 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0 9598848 9604096 22040576 140726875239538 140726875239688 140726875239688 140726875242441 0
/proc/29315/statm: 7224 934 756 807 0 215 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 28896 KiB
Current children cumulated memory: 3736 KiB
[startup+0.308711 s]*
/proc/loadavg: 2.01 2.00 1.52 3/187 29316
/proc/meminfo: memFree=24042768/32770624 swapFree=67108792/67108860
[pid=29315] ppid=29312 vsize=28896 memory=3736 CPUtime=0.31 cores=0,2,4,6
/proc/29315/stat : 29315 (MistralXCSP) R 29312 29315 28409 0 -1 4202496 1097 0 0 0 31 0 0 0 20 0 1 0 287578956 29589504 934 33554432000 4194304 7499544 140726875231696 140726875228696 4249920 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0 9598848 9604096 22040576 140726875239538 140726875239688 140726875239688 140726875242441 0
/proc/29315/statm: 7224 934 756 807 0 215 0
Current children cumulated CPU time: 0.31 s
Current children cumulated vsize: 28896 KiB
Current children cumulated memory: 3736 KiB
[startup+0.700266 s]
/proc/loadavg: 2.01 2.00 1.52 3/187 29316
/proc/meminfo: memFree=24042508/32770624 swapFree=67108792/67108860
[pid=29315] ppid=29312 vsize=28896 memory=3736 CPUtime=0.69 cores=0,2,4,6
/proc/29315/stat : 29315 (MistralXCSP) R 29312 29315 28409 0 -1 4202496 1097 0 0 0 69 0 0 0 20 0 1 0 287578956 29589504 934 33554432000 4194304 7499544 140726875231696 140726875228696 5771881 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0 9598848 9604096 22040576 140726875239538 140726875239688 140726875239688 140726875242441 0
/proc/29315/statm: 7224 934 756 807 0 215 0
Current children cumulated CPU time: 0.69 s
Current children cumulated vsize: 28896 KiB
Current children cumulated memory: 3736 KiB
[startup+1.50028 s]
/proc/loadavg: 2.01 2.00 1.52 3/187 29316
/proc/meminfo: memFree=24042508/32770624 swapFree=67108792/67108860
[pid=29315] ppid=29312 vsize=28896 memory=3736 CPUtime=1.49 cores=0,2,4,6
/proc/29315/stat : 29315 (MistralXCSP) R 29312 29315 28409 0 -1 4202496 1097 0 0 0 149 0 0 0 20 0 1 0 287578956 29589504 934 33554432000 4194304 7499544 140726875231696 140726875226712 5838096 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0 9598848 9604096 22040576 140726875239538 140726875239688 140726875239688 140726875242441 0
/proc/29315/statm: 7224 934 756 807 0 215 0
Current children cumulated CPU time: 1.49 s
Current children cumulated vsize: 28896 KiB
Current children cumulated memory: 3736 KiB
[startup+1.90157 s]
# the end of solver process 29315 was just reported to runsolver
# cumulated CPU time of all completed processes: user=1.90035 s, system=0 s
Solver just ended.
??? end of watcher thread
Dumping a history of the last processes samples
[startup+1.60026 s]
/proc/loadavg: 2.01 2.00 1.52 3/187 29316
/proc/meminfo: memFree=24042508/32770624 swapFree=67108792/67108860
[pid=29315] ppid=29312 vsize=28896 memory=3736 CPUtime=1.59 cores=0,2,4,6
/proc/29315/stat : 29315 (MistralXCSP) R 29312 29315 28409 0 -1 4202496 1097 0 0 0 159 0 0 0 20 0 1 0 287578956 29589504 934 33554432000 4194304 7499544 140726875231696 140726875226712 5577782 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0 9598848 9604096 22040576 140726875239538 140726875239688 140726875239688 140726875242441 0
/proc/29315/statm: 7224 934 756 807 0 215 0
Current children cumulated CPU time: 1.59 s
Current children cumulated vsize: 28896 KiB
Current children cumulated memory: 3736 KiB
[startup+1.80025 s]
/proc/loadavg: 2.01 2.00 1.52 3/187 29316
/proc/meminfo: memFree=24042508/32770624 swapFree=67108792/67108860
[pid=29315] ppid=29312 vsize=28896 memory=3736 CPUtime=1.79 cores=0,2,4,6
/proc/29315/stat : 29315 (MistralXCSP) R 29312 29315 28409 0 -1 4202496 1097 0 0 0 179 0 0 0 20 0 1 0 287578956 29589504 934 33554432000 4194304 7499544 140726875231696 140726875226712 4542000 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0 9598848 9604096 22040576 140726875239538 140726875239688 140726875239688 140726875242441 0
/proc/29315/statm: 7224 934 756 807 0 215 0
Current children cumulated CPU time: 1.79 s
Current children cumulated vsize: 28896 KiB
Current children cumulated memory: 3736 KiB
[startup+1.90026 s]
/proc/loadavg: 2.01 2.00 1.52 3/187 29316
/proc/meminfo: memFree=24042508/32770624 swapFree=67108792/67108860
[pid=29315] ppid=29312 vsize=28896 memory=3736 CPUtime=1.89 cores=0,2,4,6
/proc/29315/stat : 29315 (MistralXCSP) R 29312 29315 28409 0 -1 4202496 1097 0 0 0 189 0 0 0 20 0 1 0 287578956 29589504 934 33554432000 4194304 7499544 140726875231696 140726875226712 4580654 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0 9598848 9604096 22040576 140726875239538 140726875239688 140726875239688 140726875242441 0
/proc/29315/statm: 7224 934 756 807 0 215 0
Current children cumulated CPU time: 1.89 s
Current children cumulated vsize: 28896 KiB
Current children cumulated memory: 3736 KiB
Child status: 0
Real time (s): 1.90161
CPU time (s): 1.90035
CPU user time (s): 1.90035
CPU system time (s): 0
CPU usage (%): 99.9337
Max. virtual memory (cumulated for all children) (KiB): 28896
Max. memory (cumulated for all children) (KiB): 3736
getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.90035
system time used= 0
maximum resident set size= 3736
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1114
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= 8
involuntary context switches= 2
# summary of solver processes directly reported to runsolver:
# pid: 29315
# total CPU time (s): 1.90035
# total CPU user time (s): 1.90035
# total CPU system time (s): 0
??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.026632 second user time and 0.048508 second system time
The end
Begin job on node150 at 2018-08-19 19:35:57
IDJOB=4312713
IDBENCH=141538
IDSOLVER=2801
FILE ID=node150/4312713-1534700157
RUNJOBID= node150-1534698881-28440
PBS_JOBID= 21038711
Free space on /tmp= 61180 MiB
SOLVER NAME= Mistral-2.0 2018-08-01
BENCH NAME= XCSP18/Knapsack/Knapsack-40-150-01_c18.xml
COMMAND LINE= MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4312713-1534700157/watcher-4312713-1534700157 -o /tmp/evaluation-result-4312713-1534700157/solver-4312713-1534700157 -C 252 -W 252 -M 15500 --bin-var /tmp/runsolver-exch-node150-1534698881-28440 --watchdog 312 MistralXCSP -v 0 --recommended 2 --decay 0.95 --branch_on_aux 10 --seed 1274742899 HOME/instance-4312713-1534700157.xml
TIME LIMIT= 252 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4
MD5SUM BENCH= 8d3b063d869bbc1321103d2dddf1736e
RANDOM SEED=1274742899
node150.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 : 5333.76
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 : 5333.76
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 : 5333.76
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 : 5333.76
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: 24043520 kB
MemAvailable: 31902336 kB
Buffers: 203376 kB
Cached: 7945724 kB
SwapCached: 0 kB
Active: 4332040 kB
Inactive: 3876564 kB
Active(anon): 36328 kB
Inactive(anon): 92016 kB
Active(file): 4295712 kB
Inactive(file): 3784548 kB
Unevictable: 7708 kB
Mlocked: 7708 kB
SwapTotal: 67108860 kB
SwapFree: 67108792 kB
Dirty: 6052 kB
Writeback: 0 kB
AnonPages: 67044 kB
Mapped: 22088 kB
Shmem: 66116 kB
Slab: 217112 kB
SReclaimable: 188780 kB
SUnreclaim: 28332 kB
KernelStack: 3360 kB
PageTables: 5120 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 83494172 kB
Committed_AS: 399728 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 350232 kB
VmallocChunk: 34341910524 kB
HardwareCorrupted: 0 kB
AnonHugePages: 8192 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 126336 kB
DirectMap2M: 33419264 kB
Free space on /tmp at the end= 61172 MiB
End job on node150 at 2018-08-19 19:35:59