Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:00:02 2013

Optimize a model with 43744 rows, 4096 columns and 133120 nonzeros
Presolve removed 6638 rows and 2139 columns
Presolve time: 0.33s
Presolved: 37106 rows, 1957 columns, 112476 nonzeros
Variable types: 19 continuous, 1938 integer (1938 binary)
Found heuristic solution: objective 99141.000000

Root relaxation: objective 8.082451e+04, 7636 iterations, 0.55 seconds

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

     0     0 80824.5120    0   16 99141.0000 80824.5120  18.5%     -    1s
H    0     0                    80836.000000 80824.5120  0.01%     -    1s
     0     0 80825.0340    0   17 80836.0000 80825.0340  0.01%     -    1s
     0     0 80825.0340    0    9 80836.0000 80825.0340  0.01%     -    1s
H    0     0                    80833.000000 80825.0340  0.01%     -    1s

Explored 0 nodes (8472 simplex iterations) in 1.43 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.083300000000e+04, best bound 8.082600000000e+04, gap 0.0087%