Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:16:20 2013

Optimize a model with 280 rows, 4260 columns and 8680 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.01s
Presolved: 260 rows, 4240 columns, 8460 nonzeros
Variable types: 4240 continuous, 0 integer (0 binary)

Root relaxation: objective 4.013975e+04, 385 iterations, 0.02 seconds

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

     0     0 40139.7487    0    2          - 40139.7487     -      -    0s
H    0     0                    40194.499543 40139.7487  0.14%     -    0s
     0     2 40139.7487    0    2 40194.4995 40139.7487  0.14%     -    0s

Explored 19 nodes (418 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.019449954342e+04, best bound 4.019075596039e+04, gap 0.0093%