Trace number 2702490

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 NameAnswerobjective functionCPU timeWall clock time
wbo 1.4bOPT-12 0.668897 0.669086

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_4.opb
MD5SUM3e57d3cba1755ede057d969ec9fbcff0
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-12
Best CPU time to get the best result obtained on this benchmark0.460929
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -12
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints50
Minimum length of a constraint10
Maximum length of a constraint16
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)614
Sum of products size (including duplicates)1228
Number of different products307
Sum of products size614

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.00	c wbo 1.4 beta - 20100517
0.00/0.00	c Parsing opb file format. File HOME/instance-2702490-1278568453.opb.
0.00/0.00	c Instance file HOME/instance-2702490-1278568453.opb
0.00/0.00	c File size is 23993 bytes.
0.00/0.00	c Highest Coefficient sum: 16
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Parsing time:          0.00         s                                      |
0.00/0.00	c |  Number Variables:      357                                                 |
0.00/0.00	c |  Number Clauses:        307                                                 |
0.00/0.00	c |  Number Cardinality:    100                                                 |
0.00/0.00	c |  Number PB Constraints: 307                                                 |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      50      714     1475 |     5000        0    nan |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 50
0.00/0.00	o 50
0.00/0.00	c Elapsed CPU time: 0.004999 s	Remaining CPU time: 179.995 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      50      715     1525 |     5000        0    nan |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 49
0.00/0.00	o 49
0.00/0.00	c Elapsed CPU time: 0.005999 s	Remaining CPU time: 179.994 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      50      716     1575 |     5000        0    nan |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 48
0.00/0.00	o 48
0.00/0.00	c Elapsed CPU time: 0.005999 s	Remaining CPU time: 179.994 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |         1 |      50      717     1625 |     5000        1     49 |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 47
0.00/0.00	o 47
0.00/0.00	c Elapsed CPU time: 0.005999 s	Remaining CPU time: 179.994 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |         4 |      50      718     1675 |     5000        4     48 |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 46
0.00/0.00	o 46
0.00/0.00	c Elapsed CPU time: 0.005999 s	Remaining CPU time: 179.994 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |         4 |      50      719     1725 |     5000        4     48 |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 45
0.00/0.00	o 45
0.00/0.00	c Elapsed CPU time: 0.006998 s	Remaining CPU time: 179.993 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |         4 |      50      720     1775 |     5000        4     48 |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 44
0.00/0.00	o 44
0.00/0.00	c Elapsed CPU time: 0.006998 s	Remaining CPU time: 179.993 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |         7 |      50      721     1825 |     5000        7     47 |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 43
0.00/0.00	o 43
0.00/0.00	c Elapsed CPU time: 0.007998 s	Remaining CPU time: 179.992 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |        36 |      50      722     1875 |     5000       36     46 |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 42
0.00/0.00	o 42
0.00/0.00	c Elapsed CPU time: 0.007998 s	Remaining CPU time: 179.992 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |        44 |      50      723     1925 |     5000       44     46 |  0.000 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 41
0.00/0.01	o 41
0.00/0.01	c Elapsed CPU time: 0.008998 s	Remaining CPU time: 179.991 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |        62 |      50      724     1975 |     5000       62     46 |  0.000 % |
0.00/0.01	c |       162 |      50      724     1975 |     5500      162     47 | 85.995 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 40
0.00/0.01	o 40
0.00/0.01	c Elapsed CPU time: 0.014997 s	Remaining CPU time: 179.985 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |       209 |      50      725     2025 |     5000      209     48 | 85.995 % |
0.00/0.02	c |       311 |      50      725     2025 |     5500      311     50 | 85.995 % |
0.02/0.02	c |       461 |      50      725     2025 |     6050      461     49 | 85.995 % |
0.02/0.03	c |       688 |      50      725     2025 |     6655      688     49 | 85.995 % |
0.02/0.07	c |      1027 |      50      725     2025 |     7320     1027     48 | 85.995 % |
0.02/0.07	c ===============================================================================
0.02/0.07	c New solution: 39
0.02/0.07	o 39
0.02/0.07	c Elapsed CPU time: 0.069989 s	Remaining CPU time: 179.93 s
0.02/0.07	c ===============================================================================
0.02/0.07	c |      1080 |      50      726     2075 |     5000     1080     49 | 85.995 % |
0.02/0.07	c ===============================================================================
0.02/0.07	c New solution: 38
0.02/0.07	o 38
0.02/0.07	c Elapsed CPU time: 0.073988 s	Remaining CPU time: 179.926 s
0.02/0.07	c ===============================================================================
0.02/0.07	c |      1132 |      50      727     2125 |     5000     1132     50 | 85.995 % |
0.02/0.08	c |      1232 |      50      727     2125 |     5500     1232     50 | 85.995 % |
0.09/0.10	c |      1384 |      50      727     2125 |     6050     1384     50 | 85.995 % |
0.09/0.13	c |      1611 |      50      727     2125 |     6655     1611     50 | 85.995 % |
0.09/0.17	c |      1948 |      50      727     2125 |     7320     1948     50 | 85.995 % |
0.19/0.27	c |      2454 |      50      727     2125 |     8052     2454     49 | 85.995 % |
0.29/0.37	c |      3213 |      50      727     2125 |     8857     3213     49 | 85.995 % |
0.49/0.57	c |      4353 |      50      727     2125 |     9743     4353     52 | 86.005 % |
0.59/0.66	c ===============================================================================
0.59/0.66	c Best Solution: 38
0.59/0.66	s OPTIMUM FOUND
0.59/0.66	c Total CPU time: 0.647901 s
0.59/0.66	v -x1 x2 -x3 -x4 -x5 -x6 -x7 x8 -x9 x10 x11 -x12 -x13 x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 x23 -x24 -x25 -x26 -x27 -x28 -x29 -x30 -x31 x32 x33 -x34 -x35 -x36 x37 x38 -x39 -x40 -x41 -x42 x43 -x44 -x45 x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x190 -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230 -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x250 -x251 -x252 -x253 -x254 -x255 -x256 -x257 -x258 -x259 -x260 -x261 -x262 -x263 -x264 -x265 -x266 -x267 -x268 -x269 -x270 -x271 -x272 -x273 -x274 -x275 -x276 -x277 -x278 -x279 -x280 -x281 -x282 -x283 -x284 -x285 -x286 -x287 -x288 -x289 -x290 -x291 -x292 -x293 -x294 -x295 -x296 -x297 -x298 -x299 -x300 -x301 -x302 -x303 -x304 -x305 -x306 -x307 -x308 -x309 -x310 -x311 -x312 -x313 -x314 -x315 -x316 -x317 -x318 -x319 -x320 -x321 -x322 -x323 -x324 -x325 -x326 -x327 -x328 -x329 -x330 -x331 -x332 -x333 -x334 -x335 -x336 -x337 -x338 -x339 -x340 -x341 -x342 -x343 -x344 -x345 -x346 -x347 -x348 -x349 -x350 -x351 -x352 -x353 -x354 -x355 -x356 -x357

Verifier Data 

OK	-12

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2702490-1278568453/watcher-2702490-1278568453 -o /tmp/evaluation-result-2702490-1278568453/solver-2702490-1278568453 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702490-1278568453.opb 

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): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/105 31136
/proc/meminfo: memFree=1672032/2059040 swapFree=4136400/4192956
[pid=31136] ppid=31134 vsize=2704 CPUtime=0
/proc/31136/stat : 31136 (wbo1.4b) R 31134 31136 30674 0 -1 4202496 320 0 0 0 0 0 0 0 25 0 1 0 25053525 2768896 232 1992294400 134512640 135751879 4290752352 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31136/statm: 676 232 146 303 0 371 0

[startup+0.0245221 s]
/proc/loadavg: 0.92 0.98 0.99 3/105 31136
/proc/meminfo: memFree=1672032/2059040 swapFree=4136400/4192956
[pid=31136] ppid=31134 vsize=2704 CPUtime=0.02
/proc/31136/stat : 31136 (wbo1.4b) R 31134 31136 30674 0 -1 4202496 339 0 0 0 2 0 0 0 25 0 1 0 25053525 2768896 251 1992294400 134512640 135751879 4290752352 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31136/statm: 676 251 147 303 0 371 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2704

[startup+0.10153 s]
/proc/loadavg: 0.92 0.98 0.99 3/105 31136
/proc/meminfo: memFree=1672032/2059040 swapFree=4136400/4192956
[pid=31136] ppid=31134 vsize=3096 CPUtime=0.09
/proc/31136/stat : 31136 (wbo1.4b) R 31134 31136 30674 0 -1 4202496 427 0 0 0 9 0 0 0 25 0 1 0 25053525 3170304 339 1992294400 134512640 135751879 4290752352 18446744073709551615 134517424 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31136/statm: 774 339 147 303 0 469 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3096

[startup+0.301552 s]
/proc/loadavg: 0.92 0.98 0.99 3/105 31136
/proc/meminfo: memFree=1672032/2059040 swapFree=4136400/4192956
[pid=31136] ppid=31134 vsize=3616 CPUtime=0.29
/proc/31136/stat : 31136 (wbo1.4b) R 31134 31136 30674 0 -1 4202496 551 0 0 0 29 0 0 0 18 0 1 0 25053525 3702784 463 1992294400 134512640 135751879 4290752352 18446744073709551615 134517408 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31136/statm: 904 463 147 303 0 599 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3616

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

[startup+0.501575 s]
/proc/loadavg: 0.92 0.98 0.99 3/105 31136
/proc/meminfo: memFree=1672032/2059040 swapFree=4136400/4192956
[pid=31136] ppid=31134 vsize=4020 CPUtime=0.49
/proc/31136/stat : 31136 (wbo1.4b) R 31134 31136 30674 0 -1 4202496 653 0 0 0 48 1 0 0 18 0 1 0 25053525 4116480 565 1992294400 134512640 135751879 4290752352 18446744073709551615 134519008 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31136/statm: 1005 565 147 303 0 700 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 4020

[startup+0.601585 s]
/proc/loadavg: 0.92 0.98 0.99 3/105 31136
/proc/meminfo: memFree=1672032/2059040 swapFree=4136400/4192956
[pid=31136] ppid=31134 vsize=4280 CPUtime=0.59
/proc/31136/stat : 31136 (wbo1.4b) R 31134 31136 30674 0 -1 4202496 729 0 0 0 58 1 0 0 18 0 1 0 25053525 4382720 641 1992294400 134512640 135751879 4290752352 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31136/statm: 1070 641 147 303 0 765 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 4280

Child status: 0
Real time (s): 0.669086
CPU time (s): 0.668897
CPU user time (s): 0.648901
CPU system time (s): 0.019996
CPU usage (%): 99.9717
Max. virtual memory (cumulated for all children) (KiB): 4280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.648901
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 789
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= 2
involuntary context switches= 9

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node087 at 2010-07-08 07:54:13
IDJOB=2702490
IDBENCH=48180
IDSOLVER=1161
FILE ID=node087/2702490-1278568453
PBS_JOBID= 11239557
Free space on /tmp= 62552 MiB

SOLVER NAME= wbo 1.4b
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_4.opb
COMMAND LINE= wbo1.4b -file-format=opb -time-limit=TIMEOUT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2702490-1278568453/watcher-2702490-1278568453 -o /tmp/evaluation-result-2702490-1278568453/solver-2702490-1278568453 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702490-1278568453.opb

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

MD5SUM BENCH= 3e57d3cba1755ede057d969ec9fbcff0
RANDOM SEED=2032283805

node087.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.201
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.40
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		: 3000.201
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.50
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1672808 kB
Buffers:         92132 kB
Cached:         200160 kB
SwapCached:      12768 kB
Active:         137680 kB
Inactive:       171360 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1672808 kB
SwapTotal:     4192956 kB
SwapFree:      4136400 kB
Dirty:            2620 kB
Writeback:           0 kB
AnonPages:       11432 kB
Mapped:           8532 kB
Slab:            55436 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181568 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-2702490-1278568453.opb

Free space on /tmp at the end= 62552 MiB
End job on node087 at 2010-07-08 07:54:14