Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:32:35 2012

Optimize a model with 28890 rows, 30102 columns and 115908 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.66s
Presolved: 29061 rows, 30100 columns, 145503 nonzeros
Variable types: 0 continuous, 30100 integer (30100 binary)
Found heuristic solution: objective 173.0000000

Root relaxation: objective 2.000000e+00, 17720 iterations, 1.00 seconds

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

     0     0    2.00000    0  258  173.00000    2.00000  98.8%     -    3s
H    0     0                      62.0000000    2.00000  96.8%     -    3s
H    0     0                       4.0000000    2.00000  50.0%     -    3s
H    0     0                       3.0000000    2.00000  33.3%     -    3s

Cutting planes:
  Zero half: 2

Explored 0 nodes (56850 simplex iterations) in 3.87 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%