Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:18 2012

Optimize a model with 300 rows, 114 columns and 600 nonzeros
Presolve removed 69 rows and 7 columns
Presolve time: 0.00s
Presolved: 231 rows, 107 columns, 488 nonzeros
Variable types: 0 continuous, 107 integer (107 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 5.100000e+01, 143 iterations, 0.00 seconds

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

     0     0   51.00000    0   84   42.00000   51.00000  21.4%     -    0s
     0     0   50.00000    0   89   42.00000   50.00000  19.0%     -    0s
     0     0   49.80282    0  101   42.00000   49.80282  18.6%     -    0s
H    0     0                      43.0000000   49.80282  15.8%     -    0s
     0     0   49.30435    0   98   43.00000   49.30435  14.7%     -    0s
H    0     0                      45.0000000   49.30435  9.57%     -    0s
     0     0   48.63636    0  101   45.00000   48.63636  8.08%     -    0s
     0     0   48.40850    0  104   45.00000   48.40850  7.57%     -    0s
     0     0   48.26276    0  105   45.00000   48.26276  7.25%     -    0s
     0     0   48.18531    0  101   45.00000   48.18531  7.08%     -    0s
     0     0   48.14286    0  102   45.00000   48.14286  6.98%     -    0s
     0     0   48.14286    0  102   45.00000   48.14286  6.98%     -    0s
     0     2   48.14286    0  101   45.00000   48.14286  6.98%     -    0s
*    7     7               4      46.0000000   48.05788  4.47%  27.0    0s

Cutting planes:
  Zero half: 47

Explored 33 nodes (1314 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.600000000000e+01, best bound 4.600000000000e+01, gap 0.0%