Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:01:10 2013

Optimize a model with 18963 rows, 18533 columns and 74003 nonzeros
Presolve removed 1242 rows and 0 columns
Presolve time: 0.11s
Presolved: 17721 rows, 18533 columns, 71519 nonzeros
Variable types: 18490 continuous, 43 integer (43 binary)

Root relaxation: objective 4.281700e+04, 2594 iterations, 0.18 seconds

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

*    0     0               0    42817.000000 42817.0000   0.0%     -    0s

Explored 0 nodes (2594 simplex iterations) in 0.30 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.281700000000e+04, best bound 4.281700000000e+04, gap 0.0%