Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:14:21 2012

Optimize a model with 3135 rows, 2450 columns and 11611 nonzeros
Presolve removed 5 rows and 149 columns
Presolve time: 0.09s
Presolved: 3130 rows, 2301 columns, 11336 nonzeros
Variable types: 0 continuous, 2301 integer (2301 binary)
Found heuristic solution: objective 49.0000000

Root relaxation: objective 2.000000e+00, 1700 iterations, 0.03 seconds

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

     0     0    2.00000    0   88   49.00000    2.00000  95.9%     -    0s
H    0     0                      44.0000000    2.00000  95.5%     -    0s
H    0     0                       4.0000000    2.00000  50.0%     -    0s
     0     0    2.20000    0  207    4.00000    2.20000  45.0%     -    0s
H    0     0                       3.0000000    2.20000  26.7%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 7

Explored 0 nodes (7025 simplex iterations) in 0.35 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%