Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:10:15 2012

Optimize a model with 3431 rows, 600 columns and 10774 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.07s
Presolved: 3453 rows, 598 columns, 20088 nonzeros
Variable types: 0 continuous, 598 integer (598 binary)

Root relaxation: objective 6.074074e+00, 2665 iterations, 0.18 seconds

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

     0     0    6.07407    0  167          -    6.07407     -      -    0s
H    0     0                      24.0000000    6.07407  74.7%     -    0s
H    0     0                       7.0000000    6.07407  13.2%     -    0s

Explored 0 nodes (5233 simplex iterations) in 0.62 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%