Trace number 3460753

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 1.6? (TO) 1800.17 1800.18

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/
market-split/normalized-market-split_8_70_3.opb
MD5SUMdc0a3aac3e055af09a2312e5ef9f2aef
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables71
Total number of constraints17
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints16
Minimum length of a constraint1
Maximum length of a constraint70
Number of terms in the objective function 1
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 1
Number of bits of the sum of numbers in the objective function 1
Biggest number in a constraint 1782
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 5346
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c wbo 1.6 beta - 20110321
0.00/0.00	c Parsing opb file format. File HOME/instance-3460753-1307105211.opb.
0.00/0.00	c Instance file HOME/instance-3460753-1307105211.opb
0.00/0.00	c File size is 8963 bytes.
0.00/0.00	c Highest Coefficient sum: 5346
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:      71                                                  |
0.00/0.00	c |  Number Clauses:        1                                                   |
0.00/0.00	c |  Number Cardinality:    0                                                   |
0.00/0.00	c |  Number PB Constraints: 16                                                  |
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 |      70       17     1098 |     5000        0   -nan |  0.000 % |
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 |      70       17     1098 |     5000        0   -nan |  0.000 % |
0.00/0.00	c |       100 |      70       17     1098 |     5500      100     45 |  1.429 % |
0.00/0.01	c |       250 |      70       17     1098 |     6050      250     43 |  1.429 % |
0.00/0.02	c |       475 |      70       17     1098 |     6655      475     43 |  1.429 % |
0.00/0.03	c |       812 |      70       17     1098 |     7320      812     42 |  1.429 % |
0.00/0.05	c |      1318 |      70       17     1098 |     8052     1318     41 |  1.429 % |
0.06/0.08	c |      2078 |      70       17     1098 |     8857     2078     41 |  1.429 % |
0.09/0.13	c |      3217 |      70       17     1098 |     9743     3217     41 |  1.429 % |
0.19/0.21	c |      4925 |      70       17     1098 |    10717     4925     40 |  1.429 % |
0.29/0.34	c |      7487 |      70       17     1098 |    11789     7487     40 |  1.429 % |
0.49/0.56	c |     11331 |      70       17     1098 |    12968    11331     40 |  1.429 % |
0.89/0.90	c |     17097 |      70       17     1098 |    14265    10588     39 |  1.429 % |
1.39/1.44	c |     25746 |      70       17     1098 |    15692    12076     38 |  1.429 % |
2.20/2.26	c |     38720 |      70       17     1098 |    17261     9301     36 |  1.429 % |
3.49/3.55	c |     58181 |      70       17     1098 |    18987    11463     36 |  1.429 % |
5.50/5.57	c |     87373 |      70       17     1098 |    20886    12097     40 |  1.429 % |
8.59/8.69	c |    131163 |      70       17     1098 |    22974    14013     37 |  1.429 % |
13.39/13.42	c |    196847 |      70       17     1098 |    25272    18290     37 |  1.429 % |
20.39/20.41	c |    295373 |      70       17     1098 |    27799    15419     38 |  1.429 % |
31.29/31.38	c |    443162 |      70       17     1098 |    30579    11061     35 |  1.429 % |
47.99/48.01	c |    664846 |      70       17     1098 |    33637    17130     36 |  1.429 % |
75.29/75.37	c |    997371 |      70       17     1098 |    37001    11189     35 |  1.429 % |
116.70/116.79	c |   1496159 |      70       17     1098 |    40701    19163     34 |  1.429 % |
184.60/184.62	c |   2244341 |      70       17     1098 |    44771    31411     35 |  1.429 % |
290.41/290.49	c |   3366615 |      70       17     1098 |    49248    17725     34 |  1.429 % |
459.49/459.55	c |   5050027 |      70       17     1098 |    54173    38319     36 |  1.429 % |
738.79/738.86	c |   7575143 |      70       17     1098 |    59590    48840     37 |  1.429 % |
1182.08/1182.16	c |  11362818 |      70       17     1098 |    65549    49034     34 |  1.429 % |

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3460753-1307105211/watcher-3460753-1307105211 -o /tmp/evaluation-result-3460753-1307105211/solver-3460753-1307105211 -C 1800 -W 1900 -M 15500 wbo1.6 -file-format=opb -time-limit=1800 HOME/instance-3460753-1307105211.opb 

running on 4 cores: 0,2,4,6

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): 1900 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.93 2.00 1.99 2/386 28255
/proc/meminfo: memFree=23808632/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=2104 CPUtime=0.01 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 315 0 0 0 1 0 0 0 25 0 1 0 822123846 2154496 265 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 526 266 180 372 0 151 0

[startup+0.0706289 s]
/proc/loadavg: 1.93 2.00 1.99 2/386 28255
/proc/meminfo: memFree=23808632/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=2496 CPUtime=0.06 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 432 0 0 0 6 0 0 0 25 0 1 0 822123846 2555904 382 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 624 382 180 372 0 249 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2496

[startup+0.100597 s]
/proc/loadavg: 1.93 2.00 1.99 2/386 28255
/proc/meminfo: memFree=23808632/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=2756 CPUtime=0.09 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 493 0 0 0 9 0 0 0 25 0 1 0 822123846 2822144 443 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 689 443 180 372 0 314 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2756

[startup+0.300576 s]
/proc/loadavg: 1.93 2.00 1.99 2/386 28255
/proc/meminfo: memFree=23808632/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=4216 CPUtime=0.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 839 0 0 0 29 0 0 0 25 0 1 0 822123846 4317184 789 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 1054 789 180 372 0 679 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4216

[startup+0.700504 s]
/proc/loadavg: 1.93 2.00 1.99 2/386 28255
/proc/meminfo: memFree=23808632/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=6216 CPUtime=0.69 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 1357 0 0 0 68 1 0 0 25 0 1 0 822123846 6365184 1307 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 1554 1307 180 372 0 1179 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6216

[startup+1.50037 s]
/proc/loadavg: 1.93 2.00 1.99 3/387 28256
/proc/meminfo: memFree=23803044/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=7828 CPUtime=1.49 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 1752 0 0 0 147 2 0 0 25 0 1 0 822123846 8015872 1702 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 1957 1702 180 372 0 1582 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7828

[startup+3.10109 s]
/proc/loadavg: 1.93 2.00 1.99 3/387 28256
/proc/meminfo: memFree=23797976/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=10952 CPUtime=3.09 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 2507 0 0 0 305 4 0 0 25 0 1 0 822123846 11214848 2457 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 2738 2457 180 372 0 2363 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10952

[startup+6.3005 s]
/proc/loadavg: 2.02 2.02 2.00 3/387 28256
/proc/meminfo: memFree=23786944/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=17028 CPUtime=6.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 4036 0 0 0 622 7 0 0 25 0 1 0 822123846 17436672 3986 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 4257 3986 180 372 0 3882 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17028

[startup+12.7004 s]
/proc/loadavg: 2.02 2.02 2.00 3/387 28257
/proc/meminfo: memFree=23765380/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=26344 CPUtime=12.7 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 6356 0 0 0 1256 14 0 0 25 0 1 0 822123846 26976256 6306 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 6586 6306 180 372 0 6211 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 26344

[startup+25.5011 s]
/proc/loadavg: 2.01 2.02 2.00 3/387 28257
/proc/meminfo: memFree=23733880/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=44944 CPUtime=25.49 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 10947 0 0 0 2524 25 0 0 25 0 1 0 822123846 46022656 10897 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 11236 10897 180 372 0 10861 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 44944

[startup+51.1006 s]
/proc/loadavg: 2.09 2.03 2.01 3/387 28258
/proc/meminfo: memFree=23694700/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=80164 CPUtime=51.09 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 19713 0 0 0 5060 49 0 0 25 0 1 0 822123846 82087936 19663 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 20041 19663 180 372 0 19666 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 80164

[startup+102.314 s]
/proc/loadavg: 2.04 2.03 2.00 3/387 28259
/proc/meminfo: memFree=23606440/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=140184 CPUtime=102.31 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 34682 0 0 0 10134 97 0 0 25 0 1 0 822123846 143548416 34632 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 35046 34632 180 372 0 34671 0
Current children cumulated CPU time (s) 102.31
Current children cumulated vsize (KiB) 140184

[startup+162.301 s]
/proc/loadavg: 2.01 2.02 2.00 3/387 28260
/proc/meminfo: memFree=23483908/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=207444 CPUtime=162.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 51460 0 0 0 16088 141 0 0 25 0 1 0 822123846 212422656 51410 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 51861 51410 180 372 0 51486 0
Current children cumulated CPU time (s) 162.29
Current children cumulated vsize (KiB) 207444

[startup+222.3 s]
/proc/loadavg: 2.00 2.01 2.00 3/387 28262
/proc/meminfo: memFree=23377336/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=271092 CPUtime=222.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 67242 0 0 0 22042 187 0 0 25 0 1 0 822123846 277598208 67192 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 67773 67192 180 372 0 67398 0
Current children cumulated CPU time (s) 222.29
Current children cumulated vsize (KiB) 271092

[startup+282.301 s]
/proc/loadavg: 2.00 2.01 2.00 3/387 28264
/proc/meminfo: memFree=23283564/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=333148 CPUtime=282.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 82718 0 0 0 27998 231 0 0 25 0 1 0 822123846 341143552 82668 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 83287 82668 180 372 0 82912 0
Current children cumulated CPU time (s) 282.29
Current children cumulated vsize (KiB) 333148

[startup+342.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28265
/proc/meminfo: memFree=23164468/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=391860 CPUtime=342.3 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 97303 0 0 0 33954 276 0 0 25 0 1 0 822123846 401264640 97253 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 97965 97253 180 372 0 97590 0
Current children cumulated CPU time (s) 342.3
Current children cumulated vsize (KiB) 391860

[startup+402.3 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28267
/proc/meminfo: memFree=23079616/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=450372 CPUtime=402.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 111911 0 0 0 39914 315 0 0 25 0 1 0 822123846 461180928 111861 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 112593 111861 180 372 0 112218 0
Current children cumulated CPU time (s) 402.29
Current children cumulated vsize (KiB) 450372

[startup+462.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28269
/proc/meminfo: memFree=22987804/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=510956 CPUtime=462.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 127023 0 0 0 45873 356 0 0 25 0 1 0 822123846 523218944 126973 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 127739 126973 180 372 0 127364 0
Current children cumulated CPU time (s) 462.29
Current children cumulated vsize (KiB) 510956

[startup+522.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28270
/proc/meminfo: memFree=22918588/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=564876 CPUtime=522.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 140456 0 0 0 51832 397 0 0 25 0 1 0 822123846 578433024 140406 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 141219 140406 180 372 0 140844 0
Current children cumulated CPU time (s) 522.29
Current children cumulated vsize (KiB) 564876

[startup+582.3 s]
/proc/loadavg: 2.23 2.06 2.02 3/387 28272
/proc/meminfo: memFree=22835464/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=618864 CPUtime=582.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 153963 0 0 0 57792 437 0 0 25 0 1 0 822123846 633716736 153913 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 154716 153913 180 372 0 154341 0
Current children cumulated CPU time (s) 582.29
Current children cumulated vsize (KiB) 618864

[startup+642.301 s]

################
# More data... #
################

[startup+882.301 s]
/proc/loadavg: 2.00 2.02 2.00 3/387 28289
/proc/meminfo: memFree=22454280/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=877924 CPUtime=882.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 218559 0 0 0 87595 634 0 0 25 0 1 0 822123846 898994176 218509 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 219481 218509 180 372 0 219106 0
Current children cumulated CPU time (s) 882.29
Current children cumulated vsize (KiB) 877924

[startup+942.301 s]
/proc/loadavg: 2.00 2.02 2.00 3/387 28290
/proc/meminfo: memFree=22387028/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=926576 CPUtime=942.3 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 230720 0 0 0 93559 671 0 0 25 0 1 0 822123846 948813824 230670 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 231644 230670 180 372 0 231269 0
Current children cumulated CPU time (s) 942.3
Current children cumulated vsize (KiB) 926576

[startup+1002.3 s]
/proc/loadavg: 2.00 2.01 2.00 3/387 28294
/proc/meminfo: memFree=22293512/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=978272 CPUtime=1002.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 243582 0 0 0 99518 711 0 0 25 0 1 0 822123846 1001750528 243532 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 244568 243532 180 372 0 244193 0
Current children cumulated CPU time (s) 1002.29
Current children cumulated vsize (KiB) 978272

[startup+1062.3 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28296
/proc/meminfo: memFree=22227156/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1026892 CPUtime=1062.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 255664 0 0 0 105481 748 0 0 25 0 1 0 822123846 1051537408 255614 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 256723 255614 180 372 0 256348 0
Current children cumulated CPU time (s) 1062.29
Current children cumulated vsize (KiB) 1026892

[startup+1122.3 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28298
/proc/meminfo: memFree=22151980/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1076824 CPUtime=1122.28 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 268124 0 0 0 111446 782 0 0 25 0 1 0 822123846 1102667776 268074 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 269206 268074 180 372 0 268831 0
Current children cumulated CPU time (s) 1122.28
Current children cumulated vsize (KiB) 1076824

[startup+1182.3 s]
/proc/loadavg: 2.10 2.03 2.01 3/387 28300
/proc/meminfo: memFree=22083376/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1125312 CPUtime=1182.28 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 280230 0 0 0 117408 820 0 0 25 0 1 0 822123846 1152319488 280180 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 281328 280180 180 372 0 280953 0
Current children cumulated CPU time (s) 1182.28
Current children cumulated vsize (KiB) 1125312

[startup+1242.3 s]
/proc/loadavg: 2.03 2.02 2.00 3/387 28301
/proc/meminfo: memFree=22008800/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1173368 CPUtime=1242.28 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 292199 0 0 0 123369 859 0 0 25 0 1 0 822123846 1201528832 292149 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 293342 292149 180 372 0 292967 0
Current children cumulated CPU time (s) 1242.28
Current children cumulated vsize (KiB) 1173368

[startup+1302.3 s]
/proc/loadavg: 2.01 2.02 2.00 3/387 28303
/proc/meminfo: memFree=21941172/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1218428 CPUtime=1302.3 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 303499 0 0 0 129338 892 0 0 25 0 1 0 822123846 1247670272 303449 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 304607 303449 180 372 0 304232 0
Current children cumulated CPU time (s) 1302.3
Current children cumulated vsize (KiB) 1218428

[startup+1362.3 s]
/proc/loadavg: 2.00 2.01 2.00 3/387 28304
/proc/meminfo: memFree=21883980/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1265492 CPUtime=1362.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 315267 0 0 0 135303 926 0 0 25 0 1 0 822123846 1295863808 315217 33554432000 4194304 5714214 140733693066944 18446744073709551615 4300272 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 316373 315217 180 372 0 315998 0
Current children cumulated CPU time (s) 1362.29
Current children cumulated vsize (KiB) 1265492

[startup+1422.31 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28306
/proc/meminfo: memFree=21806672/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1312444 CPUtime=1422.3 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 326955 0 0 0 141267 963 0 0 25 0 1 0 822123846 1343942656 326905 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 328111 326905 180 372 0 327736 0
Current children cumulated CPU time (s) 1422.3
Current children cumulated vsize (KiB) 1312444

[startup+1482.3 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28308
/proc/meminfo: memFree=21742040/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1358876 CPUtime=1482.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 338589 0 0 0 147230 999 0 0 25 0 1 0 822123846 1391489024 338539 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 339719 338539 180 372 0 339344 0
Current children cumulated CPU time (s) 1482.29
Current children cumulated vsize (KiB) 1358876

[startup+1542.3 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28309
/proc/meminfo: memFree=21689268/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1406552 CPUtime=1542.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 350468 0 0 0 153193 1036 0 0 25 0 1 0 822123846 1440309248 350418 33554432000 4194304 5714214 140733693066944 18446744073709551615 4299952 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 351638 350418 180 372 0 351263 0
Current children cumulated CPU time (s) 1542.29
Current children cumulated vsize (KiB) 1406552

[startup+1602.3 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28311
/proc/meminfo: memFree=21607280/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1448592 CPUtime=1602.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 360978 0 0 0 159160 1069 0 0 25 0 1 0 822123846 1483358208 360928 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 362148 360928 180 372 0 361773 0
Current children cumulated CPU time (s) 1602.29
Current children cumulated vsize (KiB) 1448592

[startup+1662.3 s]
/proc/loadavg: 2.00 2.00 2.00 3/387 28313
/proc/meminfo: memFree=21535160/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1494952 CPUtime=1662.28 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 372613 0 0 0 165122 1106 0 0 25 0 1 0 822123846 1530830848 372563 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 373738 372563 180 372 0 373363 0
Current children cumulated CPU time (s) 1662.28
Current children cumulated vsize (KiB) 1494952

[startup+1722.3 s]
/proc/loadavg: 2.04 2.01 2.00 3/387 28314
/proc/meminfo: memFree=21474964/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1541624 CPUtime=1722.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 384262 0 0 0 171085 1144 0 0 25 0 1 0 822123846 1578622976 384212 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 385406 384212 180 372 0 385031 0
Current children cumulated CPU time (s) 1722.29
Current children cumulated vsize (KiB) 1541624

[startup+1782.3 s]
/proc/loadavg: 2.05 2.02 2.00 3/387 28316
/proc/meminfo: memFree=21416256/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1588576 CPUtime=1782.29 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 395984 0 0 0 177049 1180 0 0 25 0 1 0 822123846 1626701824 395934 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 397144 395934 180 372 0 396769 0
Current children cumulated CPU time (s) 1782.29
Current children cumulated vsize (KiB) 1588576



Maximum CPU time exceeded: sending SIGTERM then SIGKILL

[startup+1800.1 s]
/proc/loadavg: 1.97 2.01 2.00 3/387 28344
/proc/meminfo: memFree=22210664/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1604412 CPUtime=1800.1 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 399926 0 0 0 178820 1190 0 0 25 0 1 0 822123846 1642917888 399876 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 401103 399876 180 372 0 400728 0
Current children cumulated CPU time (s) 1800.1
Current children cumulated vsize (KiB) 1604412

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+1800.1 s]
/proc/loadavg: 1.97 2.01 2.00 3/387 28344
/proc/meminfo: memFree=22210664/32951124 swapFree=49244120/67111528
[pid=28255] ppid=28253 vsize=1604412 CPUtime=1800.1 cores=0,2,4,6
/proc/28255/stat : 28255 (wbo1.6) R 28253 28255 27315 0 -1 4202496 399926 0 0 0 178820 1190 0 0 25 0 1 0 822123846 1642917888 399876 33554432000 4194304 5714214 140733693066944 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 2 0 0 0
/proc/28255/statm: 401103 399876 180 372 0 400728 0
Current children cumulated CPU time (s) 1800.1
Current children cumulated vsize (KiB) 1604412

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1800.18
CPU time (s): 1800.17
CPU user time (s): 1788.21
CPU system time (s): 11.9642
CPU usage (%): 99.9997
Max. virtual memory (cumulated for all children) (KiB): 1604412

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1788.21
system time used= 11.9642
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 399927
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= 2524

runsolver used 7.2449 second user time and 14.6478 second system time

The end

Launcher Data 

Begin job on node101 at 2011-06-03 14:46:51
IDJOB=3460753
IDBENCH=2893
IDSOLVER=1953
FILE ID=node101/3460753-1307105211
RUNJOBID= node101-1307092509-27333
PBS_JOBID= 13497974
Free space on /tmp= 73948 MiB

SOLVER NAME= wbo 1.6
BENCH NAME= PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/market-split/normalized-market-split_8_70_3.opb
COMMAND LINE= wbo1.6 -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3460753-1307105211/watcher-3460753-1307105211 -o /tmp/evaluation-result-3460753-1307105211/solver-3460753-1307105211 -C 1800 -W 1900 -M 15500  wbo1.6 -file-format=opb -time-limit=1800 HOME/instance-3460753-1307105211.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= dc0a3aac3e055af09a2312e5ef9f2aef
RANDOM SEED=1977692296

node101.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	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.68
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5226.07
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23808788 kB
Buffers:        236740 kB
Cached:         463540 kB
SwapCached:      27120 kB
Active:        8444592 kB
Inactive:       421076 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23808788 kB
SwapTotal:    67111528 kB
SwapFree:     49244120 kB
Dirty:            9988 kB
Writeback:           0 kB
AnonPages:     8159628 kB
Mapped:          18584 kB
Slab:           134484 kB
PageTables:      74448 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 78629764 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73948 MiB
End job on node101 at 2011-06-03 15:16:53