Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:18:49 2012

Optimize a model with 7199 rows, 3660 columns and 24958 nonzeros
Presolve removed 842 rows and 2 columns
Presolve time: 0.22s
Presolved: 6417 rows, 3658 columns, 26306 nonzeros
Variable types: 0 continuous, 3658 integer (3658 binary)
Found heuristic solution: objective 60.0000000

Root relaxation: objective 3.000000e+00, 4103 iterations, 0.41 seconds

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

     0     0    3.00000    0   64   60.00000    3.00000  95.0%     -    2s
H    0     0                      20.0000000    3.00000  85.0%     -    2s
H    0     0                       5.0000000    3.00000  40.0%     -    2s
     0     0    3.00000    0   62    5.00000    3.00000  40.0%     -    2s
H    0     0                       4.0000000    3.00000  25.0%     -    2s
H    0     0                       3.0000000    3.00000   0.0%     -    2s

Cutting planes:
  Zero half: 6

Explored 0 nodes (17246 simplex iterations) in 2.57 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%