Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:07:37 2013

Optimize a model with 70375 rows, 5625 columns and 213750 nonzeros
Presolve removed 4390 rows and 2833 columns
Presolve time: 0.53s
Presolved: 65985 rows, 2792 columns, 200762 nonzeros
Variable types: 39 continuous, 2753 integer (2753 binary)
Found heuristic solution: objective 131885.00000

Root relaxation: objective 8.857451e+04, 21204 iterations, 1.93 seconds

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

     0     0 88574.5119    0   15 131885.000 88574.5119  32.8%     -    2s
H    0     0                    88586.000000 88574.5119  0.01%     -    2s
H    0     0                    88585.000000 88574.5119  0.01%     -    2s
     0     0 88575.2607    0   53 88585.0000 88575.2607  0.01%     -    3s
     0     0 88575.2607    0   16 88585.0000 88575.2607  0.01%     -    3s
     0     0 88575.2974    0   52 88585.0000 88575.2974  0.01%     -    3s
H    0     0                    88583.000000 88575.2974  0.01%     -    3s

Cutting planes:
  Gomory: 3
  MIR: 6

Explored 0 nodes (24978 simplex iterations) in 3.74 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.858300000000e+04, best bound 8.857600000000e+04, gap 0.0079%