Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:10:09 2012

Optimize a model with 3359 rows, 600 columns and 10558 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.07s
Presolved: 3357 rows, 598 columns, 18911 nonzeros
Variable types: 0 continuous, 598 integer (598 binary)
Found heuristic solution: objective 24.0000000

Root relaxation: objective 5.384615e+00, 2440 iterations, 0.15 seconds

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

     0     0    5.38462    0  189   24.00000    5.38462  77.6%     -    0s
H    0     0                       7.0000000    5.38462  23.1%     -    0s
     0     0    6.00000    0   14    7.00000    6.00000  14.3%     -    0s
     0     0 infeasible    0         7.00000    6.00001  14.3%     -    0s

Explored 0 nodes (5610 simplex iterations) in 0.77 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%