Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:14:40 2012

Optimize a model with 11543 rows, 5550 columns and 39810 nonzeros
Presolve removed 1704 rows and 2 columns
Presolve time: 0.50s
Presolved: 9913 rows, 5548 columns, 40802 nonzeros
Variable types: 0 continuous, 5548 integer (5548 binary)
Found heuristic solution: objective 74.0000000

Root relaxation: objective 3.000000e+00, 8358 iterations, 1.52 seconds

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

     0     0    3.00000    0  310   74.00000    3.00000  95.9%     -    4s
H    0     0                      72.0000000    3.00000  95.8%     -    4s
H    0     0                      52.0000000    3.00000  94.2%     -    4s
H    0     0                       7.0000000    3.00000  57.1%     -    4s
     0     0    3.00000    0  291    7.00000    3.00000  57.1%     -    6s
H    0     0                       6.0000000    3.00000  50.0%     -    6s
H    0     0                       5.0000000    3.00000  40.0%     -    6s
     0     0    3.00000    0  143    5.00000    3.00000  40.0%     -    8s
H    0     0                       3.0000000    3.00000   0.0%     -    8s

Cutting planes:
  Zero half: 6

Explored 0 nodes (28899 simplex iterations) in 8.92 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%