Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:15 2012

Optimize a model with 300 rows, 110 columns and 600 nonzeros
Presolve removed 57 rows and 6 columns
Presolve time: 0.00s
Presolved: 243 rows, 104 columns, 511 nonzeros
Variable types: 0 continuous, 104 integer (104 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 4.900000e+01, 129 iterations, 0.00 seconds

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

     0     0   49.00000    0   82   42.00000   49.00000  16.7%     -    0s
     0     0   48.44444    0  101   42.00000   48.44444  15.3%     -    0s
     0     0   47.85000    0  101   42.00000   47.85000  13.9%     -    0s
H    0     0                      43.0000000   47.85000  11.3%     -    0s
     0     0   47.00000    0   72   43.00000   47.00000  9.30%     -    0s
     0     0   46.68182    0  102   43.00000   46.68182  8.56%     -    0s
     0     0   46.37500    0  103   43.00000   46.37500  7.85%     -    0s
     0     0   46.31818    0   99   43.00000   46.31818  7.72%     -    0s
     0     0   46.13008    0  103   43.00000   46.13008  7.28%     -    0s
     0     0   45.98485    0  103   43.00000   45.98485  6.94%     -    0s
     0     0   45.79012    0   97   43.00000   45.79012  6.49%     -    0s
H    0     0                      44.0000000   45.79012  4.07%     -    0s
     0     0   45.75458    0  103   44.00000   45.75458  3.99%     -    0s
     0     0   45.75458    0  101   44.00000   45.75458  3.99%     -    0s
     0     2   45.75000    0  101   44.00000   45.75000  3.98%     -    0s
*   11     1               3      45.0000000   45.73770  1.64%  19.1    0s

Cutting planes:
  Zero half: 51

Explored 12 nodes (913 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%