Gurobi 5.0.1 (linux64) logging started Thu Dec 20 12:00:14 2012

Optimize a model with 6562 rows, 6561 columns and 29385 nonzeros
Presolve removed 5934 rows and 3607 columns
Presolve time: 0.08s
Presolved: 628 rows, 2954 columns, 8240 nonzeros
Variable types: 74 continuous, 2880 integer (2880 binary)

Root relaxation: objective 6.768698e+02, 356 iterations, 0.01 seconds

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

     0     0  676.86984    0   78          -  676.86984     -      -    0s
     0     0  708.75490    0   63          -  708.75490     -      -    0s
     0     0  709.33489    0   54          -  709.33489     -      -    0s
     0     0  709.61266    0   51          -  709.61266     -      -    0s
     0     0  710.11266    0   53          -  710.11266     -      -    0s
     0     0  710.11266    0   53          -  710.11266     -      -    0s
     0     0  710.11266    0   43          -  710.11266     -      -    0s
     0     2  710.55000    0   43          -  710.55000     -      -    0s
*  543   277              12     745.0000000  713.46496  4.23%   9.1    0s
*  545   274              14     744.0000000  713.46496  4.10%   9.1    0s
H  700   303                     741.0000000  714.75000  3.54%   9.2    1s
H  709   293                     740.0000000  719.06324  2.83%  10.7    2s
*  750   285              40     736.0000000  734.97691  0.14%  12.6    3s

Cutting planes:
  Learned: 5
  Gomory: 11
  Cover: 3
  Implied bound: 4
  Clique: 2
  MIR: 10
  GUB cover: 1
  Zero half: 15

Explored 756 nodes (10128 simplex iterations) in 3.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.360000000000e+02, best bound 7.360000000000e+02, gap 0.0%