Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:19:15 2012

Optimize a model with 3156 rows, 1722 columns and 10986 nonzeros
Presolve removed 781 rows and 2 columns
Presolve time: 0.10s
Presolved: 2416 rows, 1720 columns, 10706 nonzeros
Variable types: 0 continuous, 1720 integer (1720 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 3.000000e+00, 1930 iterations, 0.12 seconds

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

     0     0    3.00000    0   30   41.00000    3.00000  92.7%     -    0s
H    0     0                       7.0000000    3.00000  57.1%     -    0s
H    0     0                       4.0000000    3.00000  25.0%     -    0s
     0     0    3.00000    0   61    4.00000    3.00000  25.0%     -    0s
H    0     0                       3.0000000    3.00000   0.0%     -    0s

Cutting planes:
  Gomory: 3
  Zero half: 1

Explored 0 nodes (7066 simplex iterations) in 0.67 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%