Optimize a model with 70 rows, 2415 columns and 4830 nonzeros
Presolve time: 0.00s
Presolved: 70 rows, 2415 columns, 4830 nonzeros
Variable types: 0 continuous, 2415 integer (2415 binary)

Root relaxation: objective 6.235000e+02, 109 iterations, 0.00 seconds

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

     0     0  623.50000    0    8          -  623.50000     -      -    0s
     0     0  650.50000    0    6          -  650.50000     -      -    0s
     0     0  650.50000    0    8          -  650.50000     -      -    0s
     0     0  651.00000    0    6          -  651.00000     -      -    0s
     0     0  651.41667    0   18          -  651.41667     -      -    0s
     0     0  651.58333    0   23          -  651.58333     -      -    0s
     0     0  651.58333    0   23          -  651.58333     -      -    0s
     0     2  651.75000    0   23          -  651.75000     -      -    0s
*   25    24              14     688.0000000  669.50000  2.69%   6.2    0s
*   60    42              26     687.0000000  670.00000  2.47%   4.6    0s
*   61    40              25     686.0000000  670.00000  2.33%   4.6    0s
*   94    12               6     675.0000000  670.00000  0.74%   4.7    0s

Cutting planes:
  Zero half: 8

Explored 105 nodes (667 simplex iterations) in 0.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.750000000000e+02, best bound 6.750000000000e+02, gap 0.0%

Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:42:26 2012