Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:43 2013

Optimize a model with 3819 rows, 3629 columns and 14459 nonzeros
Presolve removed 190 rows and 0 columns
Presolve time: 0.02s
Presolved: 3629 rows, 3629 columns, 14079 nonzeros
Variable types: 3610 continuous, 19 integer (19 binary)

Root relaxation: objective 1.893900e+04, 451 iterations, 0.01 seconds

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

*    0     0               0    18939.000000 18939.0000   0.0%     -    0s

Explored 0 nodes (451 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.893900000000e+04, best bound 1.893900000000e+04, gap 0.0%