Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:19 2013

Optimize a model with 232 rows, 446 columns and 1490 nonzeros
Presolve removed 155 rows and 292 columns
Presolve time: 0.01s
Presolved: 77 rows, 154 columns, 444 nonzeros
Variable types: 87 continuous, 67 integer (67 binary)

Root relaxation: objective 4.458919e+03, 9 iterations, 0.00 seconds

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

     0     0 4458.91938    0    2          - 4458.91938     -      -    0s
H    0     0                    4458.9422153 4458.91938  0.00%     -    0s

Explored 0 nodes (18 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.458942215307e+03, best bound 4.458919383326e+03, gap 0.0005%