Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:24 2012

Optimize a model with 338 rows, 120 columns and 676 nonzeros
Presolve removed 59 rows and 2 columns
Presolve time: 0.00s
Presolved: 279 rows, 118 columns, 589 nonzeros
Variable types: 0 continuous, 118 integer (118 binary)
Found heuristic solution: objective 45.0000000

Root relaxation: objective 5.275000e+01, 168 iterations, 0.00 seconds

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

     0     0   52.75000    0   99   45.00000   52.75000  17.2%     -    0s
     0     0   51.83333    0  108   45.00000   51.83333  15.2%     -    0s
     0     0   51.73290    0  117   45.00000   51.73290  15.0%     -    0s
H    0     0                      46.0000000   51.73290  12.5%     -    0s
     0     0   51.24390    0  115   46.00000   51.24390  11.4%     -    0s
     0     0   51.09744    0  115   46.00000   51.09744  11.1%     -    0s
H    0     0                      47.0000000   51.09744  8.72%     -    0s
H    0     0                      48.0000000   51.09744  6.45%     -    0s
     0     0   50.82877    0  118   48.00000   50.82877  5.89%     -    0s
     0     0   50.82857    0  118   48.00000   50.82857  5.89%     -    0s
     0     0   50.82857    0  112   48.00000   50.82857  5.89%     -    0s
     0     2   50.82857    0  112   48.00000   50.82857  5.89%     -    0s
*   30     3               9      49.0000000   50.00000  2.04%  23.9    0s

Cutting planes:
  Zero half: 53

Explored 34 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 4.900000000000e+01, best bound 4.900000000000e+01, gap 0.0%