Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:31 2012

Optimize a model with 390 rows, 125 columns and 780 nonzeros
Presolve removed 63 rows and 0 columns
Presolve time: 0.00s
Presolved: 327 rows, 125 columns, 694 nonzeros
Variable types: 0 continuous, 125 integer (125 binary)
Found heuristic solution: objective 44.0000000

Root relaxation: objective 5.485714e+01, 219 iterations, 0.00 seconds

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

     0     0   54.85714    0  121   44.00000   54.85714  24.7%     -    0s
H    0     0                      47.0000000   54.85714  16.7%     -    0s
     0     0   53.41093    0  119   47.00000   53.41093  13.6%     -    0s
H    0     0                      48.0000000   53.41093  11.3%     -    0s
     0     0   52.60870    0  119   48.00000   52.60870  9.60%     -    0s
     0     0   52.00000    0  120   48.00000   52.00000  8.33%     -    0s
     0     0   51.65517    0  119   48.00000   51.65517  7.61%     -    0s
     0     0   51.54054    0  124   48.00000   51.54054  7.38%     -    0s
     0     0   51.29545    0  124   48.00000   51.29545  6.87%     -    0s
     0     0   51.26667    0  122   48.00000   51.26667  6.81%     -    0s
     0     0   51.25000    0  120   48.00000   51.25000  6.77%     -    0s
     0     0   51.25000    0  121   48.00000   51.25000  6.77%     -    0s
     0     0   51.25000    0  121   48.00000   51.25000  6.77%     -    0s
     0     2   51.25000    0  121   48.00000   51.25000  6.77%     -    0s
*   10     7               7      49.0000000   51.25000  4.59%  32.8    0s

Cutting planes:
  Gomory: 1
  Zero half: 68

Explored 30 nodes (1629 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.900000000000e+01, best bound 4.900000000000e+01, gap 0.0%