Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:25:53 2012

Optimize a model with 10280 rows, 4830 columns and 35326 nonzeros
Presolve removed 2072 rows and 2 columns
Presolve time: 0.39s
Presolved: 8208 rows, 4828 columns, 30051 nonzeros
Variable types: 0 continuous, 4828 integer (4828 binary)
Found heuristic solution: objective 69.0000000

Root relaxation: objective 3.000000e+00, 6700 iterations, 1.21 seconds

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

     0     0    3.00000    0 1266   69.00000    3.00000  95.7%     -    4s
H    0     0                      39.0000000    3.00000  92.3%     -    4s
H    0     0                      34.0000000    3.00000  91.2%     -    4s
     0     0    3.00000    0 1275   34.00000    3.00000  91.2%     -    6s
H    0     0                       4.0000000    3.00000  25.0%     -    6s
H    0     0                       3.0000000    3.00000   0.0%     -    6s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 0 nodes (20368 simplex iterations) in 6.23 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%