Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:08:20 2013

Optimize a model with 2032 rows, 4046 columns and 14090 nonzeros
Presolve removed 23 rows and 162 columns
Presolve time: 0.17s
Presolved: 2009 rows, 3884 columns, 11630 nonzeros
Variable types: 2022 continuous, 1862 integer (1862 binary)

Root relaxation: objective 7.452541e+03, 13 iterations, 0.00 seconds

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

     0     0 7452.54062    0    2          - 7452.54062     -      -    0s
     0     0 7452.63103    0    2          - 7452.63103     -      -    0s
     0     0 7452.69201    0    2          - 7452.69201     -      -    0s
     0     0 7452.71212    0    2          - 7452.71212     -      -    0s
H    0     0                    7534.6328647 7452.71212  1.09%     -    0s
     0     2 7452.71212    0    2 7534.63286 7452.71212  1.09%     -    0s
*   19     1              10    7459.1542398 7459.15417  0.00%   251    1s

Cutting planes:
  Gomory: 2
  Cover: 2

Explored 20 nodes (4818 simplex iterations) in 1.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.459154239753e+03, best bound 7.459154167114e+03, gap 0.0000%