Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:20:11 2012

Optimize a model with 3812 rows, 1722 columns and 12954 nonzeros
Presolve removed 822 rows and 2 columns
Presolve time: 0.10s
Presolved: 3031 rows, 1720 columns, 12521 nonzeros
Variable types: 0 continuous, 1720 integer (1720 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 3.000000e+00, 2474 iterations, 0.18 seconds

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

     0     0    3.00000    0   84   41.00000    3.00000  92.7%     -    1s
H    0     0                       6.0000000    3.00000  50.0%     -    1s
H    0     0                       5.0000000    3.00000  40.0%     -    1s
     0     0    3.00000    0  177    5.00000    3.00000  40.0%     -    1s
H    0     0                       4.0000000    3.00000  25.0%     -    1s
H    0     0                       3.0000000    3.00000   0.0%     -    1s

Cutting planes:
  Gomory: 2
  Zero half: 4

Explored 0 nodes (12494 simplex iterations) in 1.22 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%