Gurobi 5.0.1 (linux64) logging started Wed Nov 28 10:23:59 2012

Optimize a model with 2305 rows, 2304 columns and 11139 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.06s
Presolved: 2305 rows, 2303 columns, 11585 nonzeros
Variable types: 47 continuous, 2256 integer (2256 binary)
Found heuristic solution: objective 49769.000000

Root relaxation: objective 1.256470e+04, 258 iterations, 0.01 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 12564.7021    0   65 49769.0000 12564.7021  74.8%     -    0s
H    0     0                    16570.000000 12564.7021  24.2%     -    0s
     0     0 13833.4255    0   63 16570.0000 13833.4255  16.5%     -    0s
     0     0 13842.8441    0   71 16570.0000 13842.8441  16.5%     -    0s
     0     0 13849.1781    0   69 16570.0000 13849.1781  16.4%     -    0s
     0     0 13849.1781    0   69 16570.0000 13849.1781  16.4%     -    0s
H    0     0                    16475.000000 13849.1781  15.9%     -    0s
     0     2 13863.6781    0   69 16475.0000 13863.6781  15.9%     -    0s
H  352   255                    16250.000000 13920.4367  14.3%   9.8    1s
H  470   246                    15503.000000 13920.8865  10.2%  10.6    2s
H  600   281                    15203.000000 13924.9133  8.41%  10.6    2s
   640   309 14851.0766   23   28 15203.0000 13943.1712  8.29%  12.8    5s
H  792   316                    14921.000000 13978.2720  6.32%  15.3    6s
  2243   901 14802.2436   26   42 14921.0000 14084.3013  5.61%  16.5   10s
  4138  1979 14707.3117   33   45 14921.0000 14126.9826  5.32%  16.1   15s
H 5979  2775                    14829.000000 14156.2509  4.54%  16.3   18s
H 6344  2645                    14756.000000 14162.7148  4.02%  16.4   19s
  6354  2650 14458.6486   61   38 14756.0000 14162.7148  4.02%  16.4   20s
  7222  2833 14165.5230   35   75 14756.0000 14165.5230  4.00%  17.2   25s
H 7354  2530                    14446.000000 14165.5230  1.94%  17.2   25s
  8368  2482     cutoff   52      14446.0000 14165.5230  1.94%  18.2   30s
 10208  2209 14366.4891   50   91 14446.0000 14249.4638  1.36%  18.3   35s
 11265  2189     cutoff   63      14446.0000 14249.4638  1.36%  18.4   40s
 14453  1418 14324.8452   61   68 14446.0000 14276.7309  1.17%  18.1   45s
H18512   889                    14444.000000 14339.4440  0.72%  17.5   49s
 18805   871 14405.0480   76   30 14444.0000 14344.4981  0.69%  17.4   50s
*19018   765              82    14422.000000 14348.0000  0.51%  17.4   50s

Cutting planes:
  Learned: 11
  Gomory: 10
  Implied bound: 6
  MIR: 11
  Zero half: 9

Explored 20651 nodes (353338 simplex iterations) in 51.84 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.442200000000e+04, best bound 1.442100000000e+04, gap 0.0069%