Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:06:09 2013

Optimize a model with 64897 rows, 5329 columns and 197173 nonzeros
Presolve removed 3850 rows and 2678 columns
Presolve time: 0.53s
Presolved: 61047 rows, 2651 columns, 185941 nonzeros
Variable types: 40 continuous, 2611 integer (2611 binary)
Found heuristic solution: objective 115513.00000

Root relaxation: objective 7.991629e+04, 30445 iterations, 3.22 seconds

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

     0     0 79916.2949    0   11 115513.000 79916.2949  30.8%     -    4s
H    0     0                    79951.000000 79916.2949  0.04%     -    4s
H    0     0                    79940.000000 79916.2949  0.03%     -    4s
H    0     0                    79922.000000 79916.2949  0.01%     -    4s

Explored 0 nodes (30475 simplex iterations) in 4.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.992200000000e+04, best bound 7.991700000000e+04, gap 0.0063%