Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:22 2013

Optimize a model with 360 rows, 4120 columns and 8340 nonzeros
Presolve removed 80 rows and 60 columns
Presolve time: 0.01s
Presolved: 280 rows, 4060 columns, 8180 nonzeros
Variable types: 4040 continuous, 20 integer (20 binary)

Root relaxation: objective 3.894400e+04, 292 iterations, 0.01 seconds

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

     0     0 38944.0027    0    2          - 38944.0027     -      -    0s
H    0     0                    39929.302785 38944.0027  2.47%     -    0s
     0     2 38947.1351    0    2 39929.3028 38947.1351  2.46%     -    0s
H    1     1                    39223.441147 38947.1351  0.70%   0.0    0s

Explored 4 nodes (370 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.922344114676e+04, best bound 3.922344114676e+04, gap 0.0%