0.41/0.49 c SAT : Variables: 28007 -- Clauses: 6989556
0.41/0.49 c best=?? lower=0 upper=500
0.69/0.77 c
0.69/0.77 c This is cosoco 1.12 --
0.69/0.77 c
0.69/0.77 c command line: cosoco -lc -model -restarts -sat HOME/instance-4266660-1502599805.xml
0.69/0.77 c enable optimization
0.69/0.77 c ========================================[ Problem Statistics ]===========================================
0.69/0.77 c |
0.69/0.77 c | Parse time : 0.42 s
0.69/0.77 c |
0.69/0.77 c | Variables: 56
0.69/0.77 c | Domain Sizes: 500..501
0.69/0.77 c |
0.69/0.77 c | Constraints: 30
0.69/0.77 c | Arity: 1..21 -- Unary: 2 -- Binary: 6 -- Ternary: 21
0.69/0.77 c |
0.69/0.77 c | Types:
0.69/0.77 c | (X - Y < k): 6
0.69/0.77 c | All Different: 1
0.69/0.77 c | Intension: 23
0.69/0.77 c |
0.69/0.77 c =========================================================================================================
0.69/0.77 o 25
0.69/0.77 c 1 calls to solver: best=25 lower=0 upper=24
0.69/0.80 conflict 497lvl : 4 bt4-504:0(4488)X27987786
2.00/2.08 c
2.00/2.08 c Optimum found : 25
2.00/2.08 c
2.00/2.08
2.00/2.08 v <instantiation type='solution' cost='25'>
2.00/2.08 v <list>x[0] x[1] x[2] x[3] x[4] x[5] x[6] y[0][0] y[0][1] y[0][2] y[0][3] y[0][4] y[0][5] y[0][6] y[1][0] y[1][1] y[1][2] y[1][3] y[1][4] y[1][5] y[1][6] y[2][0] y[2][1] y[2][2] y[2][3] y[2][4] y[2][5] y[2][6] y[3][0] y[3][1] y[3][2] y[3][3] y[3][4] y[3][5] y[3][6] y[4][0] y[4][1] y[4][2] y[4][3] y[4][4] y[4][5] y[4][6] y[5][0] y[5][1] y[5][2] y[5][3] y[5][4] y[5][5] y[5][6] y[6][0] y[6][1] y[6][2] y[6][3] y[6][4] y[6][5] y[6][6] </list>
2.00/2.08 v <values>0 2 3 10 16 21 25 * 2 3 10 16 21 25 * * 1 8 14 19 23 * * * 7 13 18 22 * * * * 6 11 15 * * * * * 5 9 * * * * * * 4 * * * * * * * </values>
2.00/2.08 v </instantiation>
2.00/2.08
2.00/2.08 c call to solver : 2
2.00/2.08 c
2.00/2.08 c restarts : 91
2.00/2.08 c conflicts : 853 (425 /sec)
2.00/2.08 c decisions : 2971 (1480 /sec)
2.00/2.08 c propagations : 2496360 (1243368 /sec)
2.00/2.08 c root propagations : 536
2.00/2.08 c filter calls : 60526 (30146 /sec)
2.00/2.08 c useless filter calls : 31539 (52 %)
2.00/2.08 c
2.00/2.08 c clauses : 6989921
2.00/2.08 c SAT propagations : 558
2.00/2.08 c SAT conflicts : 25 (1 learnts)
2.00/2.08 c Memory used : 322.78 MB
2.00/2.08 c CPU time : 2.00769 s
2.00/2.08
2.00/2.08 s OPTIMUM FOUND
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 (13021 MiB free)
memory of node 1: 16384 MiB (14904 MiB free)
node distances:
10 21
21 10
command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4266660-1502599805/watcher-4266660-1502599805 -o /tmp/evaluation-result-4266660-1502599805/solver-4266660-1502599805 -C 264 -W 240 -M 15500 --bin-var /tmp/runsolver-exch-node104-1502598096-28365 --watchdog 300 cosoco -lc -model -restarts -sat HOME/instance-4266660-1502599805.xml
running on 4 cores: 0,2,4,6
Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 264 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 294 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 240 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
Current StackSize limit: 8192 KiB
solver pid=29090, runsolver pid=29087
[startup+0.100218 s]*
/proc/loadavg: 1.99 1.93 1.66 3/187 29091
/proc/meminfo: memFree=28552344/32770624 swapFree=67108860/67108860
[pid=29090] ppid=29087 vsize=75876 memory=50904 CPUtime=0.09 cores=0,2,4,6
/proc/29090/stat : 29090 (cosoco) R 29087 29090 24508 0 -1 4202496 10864 0 0 0 8 1 0 0 20 0 1 0 93068406 77697024 12726 33554432000 4194304 5972588 140729431713520 140729431710312 5280335 0 0 4096 0 0 0 0 17 4 0 0 0 0 0 8070896 8075904 30494720 140729431717055 140729431717155 140729431717155 140729431719886 0
/proc/29090/statm: 18969 12726 823 435 0 12332 0
Current children cumulated CPU time: 0.09 s
Current children cumulated vsize: 75876 KiB
Current children cumulated memory: 50904 KiB
[startup+0.209706 s]*
/proc/loadavg: 1.99 1.93 1.66 3/187 29091
/proc/meminfo: memFree=28486416/32770624 swapFree=67108860/67108860
[pid=29090] ppid=29087 vsize=146812 memory=117308 CPUtime=0.21 cores=0,2,4,6
/proc/29090/stat : 29090 (cosoco) R 29087 29090 24508 0 -1 4202496 21336 0 0 0 18 3 0 0 20 0 1 0 93068406 150335488 29327 33554432000 4194304 5972588 140729431713520 140729431710312 140338834934315 0 0 4096 0 0 0 0 17 4 0 0 0 0 0 8070896 8075904 30494720 140729431717055 140729431717155 140729431717155 140729431719886 0
/proc/29090/statm: 36703 29327 823 435 0 30066 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 146812 KiB
Current children cumulated memory: 117308 KiB
[startup+0.309603 s]*
/proc/loadavg: 1.99 1.93 1.66 3/187 29091
/proc/meminfo: memFree=28426624/32770624 swapFree=67108860/67108860
[pid=29090] ppid=29087 vsize=214324 memory=178748 CPUtime=0.3 cores=0,2,4,6
/proc/29090/stat : 29090 (cosoco) R 29087 29090 24508 0 -1 4202496 30054 0 0 0 26 4 0 0 20 0 1 0 93068406 219467776 44687 33554432000 4194304 5972588 140729431713520 140729431710312 140338834865125 0 0 4096 0 0 0 0 17 4 0 0 0 0 0 8070896 8075904 30494720 140729431717055 140729431717155 140729431717155 140729431719886 0
/proc/29090/statm: 53581 44687 823 435 0 46944 0
Current children cumulated CPU time: 0.3 s
Current children cumulated vsize: 214324 KiB
Current children cumulated memory: 178748 KiB
[startup+0.700352 s]
/proc/loadavg: 1.99 1.93 1.66 3/187 29091
/proc/meminfo: memFree=28312556/32770624 swapFree=67108860/67108860
[pid=29090] ppid=29087 vsize=330520 memory=286136 CPUtime=0.69 cores=0,2,4,6
/proc/29090/stat : 29090 (cosoco) R 29087 29090 24508 0 -1 4202496 45168 0 0 0 62 7 0 0 20 0 1 0 93068406 338452480 71534 33554432000 4194304 5972588 140729431713520 140729431710536 4909643 0 0 4096 8405026 0 0 0 17 4 0 0 0 0 0 8070896 8075904 30494720 140729431717055 140729431717155 140729431717155 140729431719886 0
/proc/29090/statm: 82630 71534 840 435 0 75993 0
Current children cumulated CPU time: 0.69 s
Current children cumulated vsize: 330520 KiB
Current children cumulated memory: 286136 KiB
[startup+1.50034 s]
/proc/loadavg: 1.99 1.93 1.66 3/187 29091
/proc/meminfo: memFree=28312460/32770624 swapFree=67108860/67108860
[pid=29090] ppid=29087 vsize=330520 memory=286136 CPUtime=1.49 cores=0,2,4,6
/proc/29090/stat : 29090 (cosoco) R 29087 29090 24508 0 -1 4202496 45176 0 0 0 142 7 0 0 20 0 1 0 93068406 338452480 71534 33554432000 4194304 5972588 140729431713520 140729431710536 5099648 0 0 4096 8405026 0 0 0 17 4 0 0 0 0 0 8070896 8075904 30494720 140729431717055 140729431717155 140729431717155 140729431719886 0
/proc/29090/statm: 82630 71534 840 435 0 75993 0
Current children cumulated CPU time: 1.49 s
Current children cumulated vsize: 330520 KiB
Current children cumulated memory: 286136 KiB
[startup+2.10058 s]
# the end of solver process 29090 was just reported to runsolver
# cumulated CPU time of all completed processes: user=2.00827 s, system=0.090967 s
Solver just ended.
??? end of watcher thread
Dumping a history of the last processes samples
[startup+1.60034 s]
/proc/loadavg: 1.99 1.93 1.66 3/187 29091
/proc/meminfo: memFree=28312460/32770624 swapFree=67108860/67108860
[pid=29090] ppid=29087 vsize=330520 memory=286136 CPUtime=1.59 cores=0,2,4,6
/proc/29090/stat : 29090 (cosoco) R 29087 29090 24508 0 -1 4202496 45176 0 0 0 152 7 0 0 20 0 1 0 93068406 338452480 71534 33554432000 4194304 5972588 140729431713520 140729431710536 4968801 0 0 4096 8405026 0 0 0 17 4 0 0 0 0 0 8070896 8075904 30494720 140729431717055 140729431717155 140729431717155 140729431719886 0
/proc/29090/statm: 82630 71534 840 435 0 75993 0
Current children cumulated CPU time: 1.59 s
Current children cumulated vsize: 330520 KiB
Current children cumulated memory: 286136 KiB
[startup+2.00032 s]*
/proc/loadavg: 1.99 1.93 1.66 3/187 29091
/proc/meminfo: memFree=28312336/32770624 swapFree=67108860/67108860
[pid=29090] ppid=29087 vsize=330520 memory=286344 CPUtime=2 cores=0,2,4,6
/proc/29090/stat : 29090 (cosoco) R 29087 29090 24508 0 -1 4202496 45520 0 0 0 193 7 0 0 20 0 1 0 93068406 338452480 71586 33554432000 4194304 5972588 140729431713520 140729431710744 5273324 0 0 4096 8405026 0 0 0 17 4 0 0 0 0 0 8070896 8075904 30494720 140729431717055 140729431717155 140729431717155 140729431719886 0
/proc/29090/statm: 82630 71586 846 435 0 75993 0
Current children cumulated CPU time: 2 s
Current children cumulated vsize: 330520 KiB
Current children cumulated memory: 286344 KiB
Child status: 0
Real time (s): 2.10063
CPU time (s): 2.09924
CPU user time (s): 2.00827
CPU system time (s): 0.090967
CPU usage (%): 99.9337
Max. virtual memory (cumulated for all children) (KiB): 330520
Max. memory (cumulated for all children) (KiB): 286344
getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.00827
system time used= 0.090967
maximum resident set size= 286412
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 45642
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= 10
involuntary context switches= 4
# summary of solver processes directly reported to runsolver:
# pid: 29090
# total CPU time (s): 2.09924
# total CPU user time (s): 2.00827
# total CPU system time (s): 0.090967
??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.032516 second user time and 0.056904 second system time
The end
Begin job on node104 at 2017-08-13 06:35:47
IDJOB=4266660
IDBENCH=126227
IDSOLVER=2656
FILE ID=node104/4266660-1502599805
RUNJOBID= node104-1502598096-28365
PBS_JOBID= 20628287
Free space on /tmp= 61864 MiB
SOLVER NAME= cosoco-sat 1.12
BENCH NAME= XCSP17/GolombRuler/GolombRuler-a3-s1/GolombRuler-07-a3.xml
COMMAND LINE= cosoco -lc -model -restarts -sat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4266660-1502599805/watcher-4266660-1502599805 -o /tmp/evaluation-result-4266660-1502599805/solver-4266660-1502599805 -C 264 -W 240 -M 15500 --bin-var /tmp/runsolver-exch-node104-1502598096-28365 --watchdog 300 cosoco -lc -model -restarts -sat HOME/instance-4266660-1502599805.xml
TIME LIMIT= 264 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4
MD5SUM BENCH= 7dfd3f139f05fe96cee61268ac0efa79
RANDOM SEED=1599140083
node104.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: 28596580 kB
MemAvailable: 31870680 kB
Buffers: 138212 kB
Cached: 3418356 kB
SwapCached: 0 kB
Active: 440964 kB
Inactive: 3285820 kB
Active(anon): 172716 kB
Inactive(anon): 25028 kB
Active(file): 268248 kB
Inactive(file): 3260792 kB
Unevictable: 6528 kB
Mlocked: 6528 kB
SwapTotal: 67108860 kB
SwapFree: 67108860 kB
Dirty: 2540 kB
Writeback: 0 kB
AnonPages: 175956 kB
Mapped: 44828 kB
Shmem: 25228 kB
Slab: 147484 kB
SReclaimable: 121792 kB
SUnreclaim: 25692 kB
KernelStack: 3328 kB
PageTables: 5400 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 83494172 kB
Committed_AS: 474228 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 350232 kB
VmallocChunk: 34341910524 kB
HardwareCorrupted: 0 kB
AnonHugePages: 114688 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 112000 kB
DirectMap2M: 33433600 kB
Free space on /tmp at the end= 61860 MiB
End job on node104 at 2017-08-13 06:35:49