Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:26 2013

Optimize a model with 320 rows, 1010 columns and 2505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.02s
Presolved: 310 rows, 995 columns, 1990 nonzeros
Variable types: 750 continuous, 245 integer (245 binary)

Root relaxation: objective 1.174557e+04, 36 iterations, 0.00 seconds

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

     0     0 11745.5748    0    1          - 11745.5748     -      -    0s
     0     0 11746.8586    0    2          - 11746.8586     -      -    0s
     0     0 11746.8958    0    2          - 11746.8958     -      -    0s
     0     0 11746.8958    0    2          - 11746.8958     -      -    0s
H    0     0                    12152.685980 11746.8958  3.34%     -    0s
     0     2 11754.8496    0    2 12152.6860 11754.8496  3.27%     -    0s
*    6     6               5    11790.167559 11774.1457  0.14%   3.0    0s
*   11     3               6    11785.256501 11774.3850  0.09%   2.5    0s
*   14     2               5    11783.510594 11775.9425  0.06%   2.3    0s
*   16     1               3    11779.400058 11776.7805  0.02%   2.5    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 18 nodes (142 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.177940005794e+04, best bound 1.177940005794e+04, gap 0.0%