Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:35:45 2012

Optimize a model with 4320 rows, 2070 columns and 14850 nonzeros
Presolve removed 855 rows and 0 columns
Presolve time: 0.09s
Presolved: 3465 rows, 2070 columns, 12825 nonzeros
Variable types: 0 continuous, 2070 integer (2070 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.000000e+00, 3350 iterations, 0.24 seconds

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

     0     0    3.00000    0   81   28.00000    3.00000  89.3%     -    0s
H    0     0                       5.0000000    3.00000  40.0%     -    0s
H    0     0                       4.0000000    3.00000  25.0%     -    0s
     0     0    3.00000    0   79    4.00000    3.00000  25.0%     -    0s
     0     0    3.00000    0   82    4.00000    3.00000  25.0%     -    0s
H    0     0                       3.0000000    3.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 0 nodes (8114 simplex iterations) in 0.73 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%