Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:00 2013

Optimize a model with 63 rows, 49 columns and 168 nonzeros
Presolve removed 21 rows and 21 columns
Presolve time: 0.00s
Presolved: 42 rows, 28 columns, 126 nonzeros
Variable types: 7 continuous, 21 integer (21 binary)
Found heuristic solution: objective 1584.0000000

Root relaxation: objective 2.960000e+02, 17 iterations, 0.00 seconds

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

     0     0  296.00000    0   12 1584.00000  296.00000  81.3%     -    0s
     0     0  455.30991    0   13 1584.00000  455.30991  71.3%     -    0s
     0     0  468.63206    0   15 1584.00000  468.63206  70.4%     -    0s
     0     0  468.76544    0   15 1584.00000  468.76544  70.4%     -    0s
     0     0  468.76544    0   15 1584.00000  468.76544  70.4%     -    0s
     0     2  469.27641    0   15 1584.00000  469.27641  70.4%     -    0s
*   17    17              11     896.0000000  518.43304  42.1%   4.5    0s
*  128    49              11     860.0000000  578.40819  32.7%   3.7    0s
*  171    44              10     855.0000000  672.00000  21.4%   3.5    0s

Cutting planes:
  Implied bound: 10
  MIR: 30

Explored 329 nodes (1103 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.550000000000e+02, best bound 8.550000000000e+02, gap 0.0%