Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:33 2013

Optimize a model with 34 rows, 1023 columns and 12054 nonzeros
Presolve removed 12 rows and 12 columns
Presolve time: 0.02s
Presolved: 22 rows, 1011 columns, 11030 nonzeros
Variable types: 1001 continuous, 10 integer (10 binary)

Root relaxation: objective 3.291305e+03, 13 iterations, 0.00 seconds

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

     0     0 3291.30517    0    7          - 3291.30517     -      -    0s
     0     0 3291.80271    0    9          - 3291.80271     -      -    0s
     0     0 3291.80288    0   10          - 3291.80288     -      -    0s
     0     0 3292.23858    0    2          - 3292.23858     -      -    0s
     0     0 3292.23858    0    2          - 3292.23858     -      -    0s
     0     0 3292.24057    0    2          - 3292.24057     -      -    0s
     0     0 3292.24444    0    5          - 3292.24444     -      -    0s
     0     0 3292.24705    0    6          - 3292.24705     -      -    0s
     0     2 3292.25644    0    6          - 3292.25644     -      -    0s
*   10     0               6    3292.3314523 3292.33145   0.0%   5.2    0s

Cutting planes:
  Cover: 1
  Implied bound: 4
  Flow cover: 1
  Zero half: 1

Explored 11 nodes (124 simplex iterations) in 0.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.292331452299e+03, best bound 3.292331452299e+03, gap 0.0%