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

Optimize a model with 52462 rows, 4624 columns and 159528 nonzeros
Presolve removed 5408 rows and 2374 columns
Presolve time: 0.46s
Presolved: 47054 rows, 2250 columns, 142462 nonzeros
Variable types: 20 continuous, 2230 integer (2230 binary)
Found heuristic solution: objective 113420.00000

Root relaxation: objective 9.300213e+04, 8259 iterations, 0.70 seconds

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

     0     0 93002.1345    0    7 113420.000 93002.1345  18.0%     -    1s
H    0     0                    93012.000000 93002.1345  0.01%     -    1s
H    0     0                    93011.000000 93002.1345  0.01%     -    1s

Explored 0 nodes (8280 simplex iterations) in 1.34 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.301100000000e+04, best bound 9.300300000000e+04, gap 0.0086%