Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:28 2013

Optimize a model with 570 rows, 1760 columns and 4505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.05s
Presolved: 560 rows, 1745 columns, 3490 nonzeros
Variable types: 1250 continuous, 495 integer (495 binary)

Root relaxation: objective 1.204447e+04, 46 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 12045.4860    0    2          - 12045.4860     -      -    0s
     0     0 12045.4860    0    2          - 12045.4860     -      -    0s
H    0     0                    12387.640675 12045.4860  2.76%     -    0s
     0     2 12050.2357    0    2 12387.6407 12050.2357  2.72%     -    0s
*   11     2              11    12097.772419 12097.7724   0.0%   1.8    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 12 nodes (179 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.209777241860e+04, best bound 1.209777241860e+04, gap 0.0%