Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:27:47 2012

Optimize a model with 9519 rows, 4970 columns and 33178 nonzeros
Presolve removed 1334 rows and 142 columns
Presolve time: 0.35s
Presolved: 8185 rows, 4828 columns, 29584 nonzeros
Variable types: 0 continuous, 4828 integer (4828 binary)
Found heuristic solution: objective 70.0000000

Root relaxation: objective 3.000000e+00, 6952 iterations, 1.02 seconds

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

     0     0    3.00000    0   52   70.00000    3.00000  95.7%     -    4s
H    0     0                      35.0000000    3.00000  91.4%     -    4s
H    0     0                       4.0000000    3.00000  25.0%     -    4s
H    0     0                       3.0000000    3.00000   0.0%     -    4s

Explored 0 nodes (25667 simplex iterations) in 4.61 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%