Gurobi 5.0.1 (linux64) logging started Thu Nov 29 09:59:43 2012

Optimize a model with 19882 rows, 19881 columns and 98280 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.21s
Presolved: 19882 rows, 19880 columns, 98144 nonzeros
Variable types: 140 continuous, 19740 integer (19740 binary)
Found heuristic solution: objective 25229.000000
Found heuristic solution: objective 25191.000000

Root relaxation: objective 2.302161e+03, 565 iterations, 0.06 seconds

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

     0     0 2302.16071    0  103 25191.0000 2302.16071  90.9%     -    1s
     0     0 2403.11905    0  187 25191.0000 2403.11905  90.5%     -    1s
     0     0 2405.41905    0  182 25191.0000 2405.41905  90.5%     -    1s
     0     0 2409.36190    0  139 25191.0000 2409.36190  90.4%     -    2s
     0     0 2409.36190    0  145 25191.0000 2409.36190  90.4%     -    2s
     0     0 2409.36190    0   63 25191.0000 2409.36190  90.4%     -    2s
H    0     0                    2642.0000000 2409.36190  8.81%     -    6s
     0     0 2409.36190    0   59 2642.00000 2409.36190  8.81%     -    7s
     0     0 2409.36190    0   61 2642.00000 2409.36190  8.81%     -    7s
     0     0 2409.36190    0   66 2642.00000 2409.36190  8.81%     -    8s
     0     0 2409.36190    0   58 2642.00000 2409.36190  8.81%     -    8s
     0     0 2409.36190    0   64 2642.00000 2409.36190  8.81%     -    9s
     0     0 2409.36190    0   64 2642.00000 2409.36190  8.81%     -   10s
H    0     0                    2446.0000000 2409.36190  1.50%     -   10s
     0     0 2409.36190    0  113 2446.00000 2409.36190  1.50%     -   12s
     0     0 2409.36190    0  143 2446.00000 2409.36190  1.50%     -   12s
     0     0 2409.36190    0  138 2446.00000 2409.36190  1.50%     -   12s
     0     0 2409.36190    0  135 2446.00000 2409.36190  1.50%     -   12s
     0     0 2409.36190    0  139 2446.00000 2409.36190  1.50%     -   12s
     0     0 2409.36190    0   55 2446.00000 2409.36190  1.50%     -   12s
     0     0 2409.36190    0   55 2446.00000 2409.36190  1.50%     -   12s
     0     0 2409.36190    0   55 2446.00000 2409.36190  1.50%     -   13s
     0     2 2412.02857    0   55 2446.00000 2412.02857  1.39%     -   14s
     7     7 2412.50000    7   60 2446.00000 2412.50000  1.37%  39.4   15s
H   27    10                    2430.0000000 2413.10000  0.70%  16.7   15s
H   81    15                    2426.0000000 2415.00000  0.45%  17.0   16s
H  271    11                    2420.0000000 2417.13381  0.12%  17.7   18s

Cutting planes:
  Learned: 22
  Gomory: 4
  Implied bound: 97
  MIR: 18

Explored 281 nodes (15075 simplex iterations) in 18.65 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.420000000000e+03, best bound 2.420000000000e+03, gap 0.0%