Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:15 2012

Optimize a model with 120 rows, 72 columns and 400 nonzeros
Presolve removed 64 rows and 0 columns
Presolve time: 0.00s
Presolved: 56 rows, 72 columns, 256 nonzeros
Variable types: 0 continuous, 72 integer (72 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 4.000000e+00, 47 iterations, 0.00 seconds

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

*    0     0               0       4.0000000    4.00000   0.0%     -    0s

Explored 0 nodes (47 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%