Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:13:50 2013

Optimize a model with 88641 rows, 6561 columns and 269001 nonzeros
Presolve removed 6582 rows and 3327 columns
Presolve time: 0.86s
Presolved: 82059 rows, 3234 columns, 249055 nonzeros
Variable types: 37 continuous, 3197 integer (3197 binary)
Found heuristic solution: objective 127340.00000

Root relaxation: objective 9.103545e+04, 23642 iterations, 2.53 seconds

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

     0     0 91035.4545    0   10 127340.000 91035.4545  28.5%     -    3s
H    0     0                    91050.000000 91035.4545  0.02%     -    3s
H    0     0                    91043.000000 91035.4545  0.01%     -    3s

Explored 0 nodes (23766 simplex iterations) in 3.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.104300000000e+04, best bound 9.103600000000e+04, gap 0.0077%