Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:08:12 2013

Optimize a model with 68 rows, 4160 columns and 52122 nonzeros
Presolve removed 22 rows and 120 columns
Presolve time: 0.31s
Presolved: 46 rows, 4040 columns, 48078 nonzeros
Variable types: 4020 continuous, 20 integer (20 binary)

Root relaxation: objective 5.784077e+03, 23 iterations, 0.00 seconds

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

     0     0 5784.07688    0    8          - 5784.07688     -      -    0s
     0     0 5785.72899    0    8          - 5785.72899     -      -    0s
     0     0 5801.75940    0   15          - 5801.75940     -      -    0s
     0     0 5803.47098    0    7          - 5803.47098     -      -    0s
     0     0 5803.47098    0    7          - 5803.47098     -      -    0s
H    0     0                    5812.4905283 5803.47098  0.16%     -    0s
     0     0 5812.13500    0    5 5812.49053 5812.13500  0.01%     -    0s

Explored 0 nodes (133 simplex iterations) in 0.54 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.812490528268e+03, best bound 5.812134999403e+03, gap 0.0061%