Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:59:58 2012

Optimize a model with 5856 rows, 2352 columns and 19728 nonzeros
Presolve removed 1297 rows and 48 columns
Presolve time: 0.15s
Presolved: 4559 rows, 2304 columns, 16656 nonzeros
Variable types: 0 continuous, 2304 integer (2304 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 4.000000e+00, 5349 iterations, 0.59 seconds

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

*    0     0               0       4.0000000    4.00000   0.0%     -    0s

Explored 0 nodes (6076 simplex iterations) in 0.81 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%