Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:11:30 2013

Optimize a model with 82239 rows, 6241 columns and 249640 nonzeros
Presolve removed 6083 rows and 3166 columns
Presolve time: 0.74s
Presolved: 76156 rows, 3075 columns, 230972 nonzeros
Variable types: 33 continuous, 3042 integer (3042 binary)
Found heuristic solution: objective 141492.00000

Root relaxation: objective 1.079331e+05, 17414 iterations, 1.96 seconds

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

     0     0 107933.064    0   12 141492.000 107933.064  23.7%     -    3s
H    0     0                    107949.00000 107933.064  0.01%     -    3s
H    0     0                    107943.00000 107933.064  0.01%     -    3s

Explored 0 nodes (17488 simplex iterations) in 3.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.079430000000e+05, best bound 1.079340000000e+05, gap 0.0083%