Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:07:25 2012

Optimize a model with 9545 rows, 5550 columns and 33816 nonzeros
Presolve removed 1114 rows and 150 columns
Presolve time: 0.39s
Presolved: 8431 rows, 5400 columns, 30776 nonzeros
Variable types: 0 continuous, 5400 integer (5400 binary)
Found heuristic solution: objective 74.0000000

Root relaxation: objective 3.000000e+00, 6356 iterations, 0.85 seconds
Total elapsed time = 5.95s

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

     0     0    3.00000    0  800   74.00000    3.00000  95.9%     -    6s
H    0     0                      67.0000000    3.00000  95.5%     -    6s
H    0     0                       3.0000000    3.00000   0.0%     -    6s

Explored 0 nodes (31762 simplex iterations) in 6.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%