Optimize a model with 76 rows, 2850 columns and 5700 nonzeros
Presolve time: 0.01s
Presolved: 76 rows, 2850 columns, 5700 nonzeros
Variable types: 0 continuous, 2850 integer (2850 binary)

Root relaxation: objective 5.340000e+02, 130 iterations, 0.00 seconds

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

     0     0  537.00000    0    6          -  537.00000     -      -    0s
H    0     0                     550.0000000  537.00000  2.36%     -    0s
     0     0  537.50000    0    8  550.00000  537.50000  2.27%     -    0s
     0     0  537.50000    0   16  550.00000  537.50000  2.27%     -    0s
     0     0  538.00000    0   10  550.00000  538.00000  2.18%     -    0s
*    0     0               0     538.0000000  538.00000   0.0%     -    0s

Cutting planes:
  Gomory: 3
  Zero half: 3

Explored 0 nodes (322 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.380000000000e+02, best bound 5.380000000000e+02, gap 0.0%

Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:42:27 2012