Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:15 2013

Optimize a model with 84 rows, 64 columns and 224 nonzeros
Presolve removed 28 rows and 28 columns
Presolve time: 0.00s
Presolved: 56 rows, 36 columns, 168 nonzeros
Variable types: 8 continuous, 28 integer (28 binary)
Found heuristic solution: objective 2237.0000000

Root relaxation: objective 4.230000e+02, 25 iterations, 0.00 seconds

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

     0     0  423.00000    0   20 2237.00000  423.00000  81.1%     -    0s
     0     0  641.04020    0   10 2237.00000  641.04020  71.3%     -    0s
     0     0  644.00609    0   14 2237.00000  644.00609  71.2%     -    0s
     0     0  644.00609    0   14 2237.00000  644.00609  71.2%     -    0s
H    0     0                    1208.0000000  644.00609  46.7%     -    0s
     0     2  666.31228    0   14 1208.00000  666.31228  44.8%     -    0s
H   92    43                    1185.0000000  760.00000  35.9%   4.4    0s

Cutting planes:
  Gomory: 1
  Implied bound: 18
  MIR: 32

Explored 724 nodes (2462 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.185000000000e+03, best bound 1.185000000000e+03, gap 0.0%