Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:53 2012

Optimize a model with 81 rows, 78 columns and 278 nonzeros
Presolve removed 0 rows and 3 columns
Presolve time: 0.00s
Presolved: 81 rows, 75 columns, 275 nonzeros
Variable types: 0 continuous, 75 integer (74 binary)
Found heuristic solution: objective 16.0000000

Root relaxation: objective 0.000000e+00, 43 iterations, 0.00 seconds

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

     0     0    0.00000    0   29   16.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
H    0     0                       5.0000000    0.00000   100%     -    0s
     0     0    0.30441    0   31    5.00000    0.30441  93.9%     -    0s
H    0     0                       3.0000000    0.30441  89.9%     -    0s
     0     0    0.69803    0   32    3.00000    0.69803  76.7%     -    0s
     0     0    0.69803    0   34    3.00000    0.69803  76.7%     -    0s
     0     0    0.69803    0   34    3.00000    0.69803  76.7%     -    0s
     0     2    0.71651    0   34    3.00000    0.71651  76.1%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 1

Explored 6 nodes (302 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%