Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:03:02 2013

Optimize a model with 1070 rows, 3260 columns and 8505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.16s
Presolved: 1060 rows, 3245 columns, 6490 nonzeros
Variable types: 2250 continuous, 995 integer (995 binary)

Root relaxation: objective 1.204447e+04, 47 iterations, 0.00 seconds

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

     0     0 12044.4669    0    1          - 12044.4669     -      -    0s
     0     0 12044.9807    0    2          - 12044.9807     -      -    0s
     0     0 12044.9807    0    2          - 12044.9807     -      -    0s
     0     0 12044.9807    0    2          - 12044.9807     -      -    0s
     0     2 12045.2465    0    2          - 12045.2465     -      -    0s
*  225   135             224    12351.290704 12097.7756  2.05%   1.9    0s
*  230     0              18    12097.775593 12097.7756   0.0%   1.9    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 231 nodes (692 simplex iterations) in 0.79 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.209777559273e+04, best bound 1.209777559273e+04, gap 0.0%