Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:50 2013

Optimize a model with 28 rows, 446 columns and 1288 nonzeros
Presolve removed 22 rows and 23 columns
Presolve time: 0.00s
Presolved: 6 rows, 423 columns, 844 nonzeros
Variable types: 423 continuous, 0 integer (0 binary)

Root relaxation: objective 7.444602e+03, 6 iterations, 0.00 seconds

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

     0     0 7444.60178    0    1          - 7444.60178     -      -    0s
     0     2 7444.60178    0    1          - 7444.60178     -      -    0s
*   15     5               8    7459.1534069 7459.15169  0.00%   1.3    0s

Explored 16 nodes (25 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.459153406943e+03, best bound 7.459151694455e+03, gap 0.0000%