Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:40:43 2013

Optimize a model with 140 rows, 6030 columns and 17040 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.01s
Presolved: 130 rows, 6020 columns, 12030 nonzeros
Variable types: 6020 continuous, 0 integer (0 binary)

Root relaxation: objective 1.791602e+04, 116 iterations, 0.00 seconds

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

     0     0 17916.0191    0    3          - 17916.0191     -      -    0s
     0     2 17916.0191    0    3          - 17916.0191     -      -    0s
*   35     9              18    17984.236694 17979.7269  0.03%   5.8    0s
*   40     4              20    17984.225264 17979.7269  0.03%   5.2    0s

Explored 43 nodes (322 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.798422526417e+04, best bound 1.798379772039e+04, gap 0.0024%