Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:06 2012

Optimize a model with 53 rows, 51 columns and 181 nonzeros
Presolve removed 0 rows and 3 columns
Presolve time: 0.00s
Presolved: 53 rows, 48 columns, 178 nonzeros
Variable types: 0 continuous, 48 integer (47 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds

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

     0     0    0.00000    0   21    7.00000    0.00000   100%     -    0s
H    0     0                       4.0000000    0.00000   100%     -    0s
     0     0    0.41261    0   23    4.00000    0.41261  89.7%     -    0s
     0     0    0.88461    0   25    4.00000    0.88461  77.9%     -    0s
     0     0    0.88461    0   25    4.00000    0.88461  77.9%     -    0s
     0     2    0.98039    0   25    4.00000    0.98039  75.5%     -    0s
*    3     2               3       3.0000000    2.25000  25.0%  28.3    0s

Cutting planes:
  Gomory: 3

Explored 4 nodes (240 simplex iterations) in 0.02 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%