Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:00:49 2013

Optimize a model with 45825 rows, 4225 columns and 139425 nonzeros
Presolve removed 4823 rows and 2162 columns
Presolve time: 0.36s
Presolved: 41002 rows, 2063 columns, 124736 nonzeros
Variable types: 28 continuous, 2035 integer (2035 binary)
Found heuristic solution: objective 77065.000000

Root relaxation: objective 6.066966e+04, 10987 iterations, 0.85 seconds

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

     0     0 60669.6581    0    7 77065.0000 60669.6581  21.3%     -    1s
H    0     0                    60677.000000 60669.6581  0.01%     -    1s
H    0     0                    60674.000000 60669.6581  0.01%     -    1s

Explored 0 nodes (10997 simplex iterations) in 1.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.067400000000e+04, best bound 6.067000000000e+04, gap 0.0066%