Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:10 2012

Optimize a model with 93 rows, 19 columns and 186 nonzeros
Presolve removed 66 rows and 0 columns
Presolve time: 0.00s
Presolved: 27 rows, 19 columns, 118 nonzeros
Variable types: 0 continuous, 19 integer (19 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 4.000000e+00, 17 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 (22 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%