Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:08:04 2012

Optimize a model with 647 rows, 600 columns and 2422 nonzeros
Presolve removed 98 rows and 2 columns
Presolve time: 0.02s
Presolved: 573 rows, 598 columns, 2712 nonzeros
Variable types: 0 continuous, 598 integer (598 binary)
Found heuristic solution: objective 24.0000000

Root relaxation: objective 3.000000e+00, 384 iterations, 0.00 seconds

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

*    0     0               0       3.0000000    3.00000   0.0%     -    0s

Explored 0 nodes (1242 simplex iterations) in 0.04 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%