Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:01:34 2013

Optimize a model with 50183 rows, 4489 columns and 152626 nonzeros
Presolve removed 5236 rows and 2298 columns
Presolve time: 0.40s
Presolved: 44947 rows, 2191 columns, 136632 nonzeros
Variable types: 28 continuous, 2163 integer (2163 binary)
Found heuristic solution: objective 114910.00000

Root relaxation: objective 9.313107e+04, 10400 iterations, 0.75 seconds

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

     0     0 93131.0683    0    5 114910.000 93131.0683  19.0%     -    1s
H    0     0                    93139.000000 93131.0683  0.01%     -    1s

Explored 0 nodes (10407 simplex iterations) in 1.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.313900000000e+04, best bound 9.313200000000e+04, gap 0.0075%