Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:21 2012

Optimize a model with 382 rows, 117 columns and 764 nonzeros
Presolve removed 74 rows and 4 columns
Presolve time: 0.00s
Presolved: 308 rows, 113 columns, 652 nonzeros
Variable types: 0 continuous, 113 integer (113 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 4.975000e+01, 187 iterations, 0.00 seconds

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

     0     0   49.75000    0   99   40.00000   49.75000  24.4%     -    0s
     0     0   49.00000    0  112   40.00000   49.00000  22.5%     -    0s
     0     0   48.03704    0  107   40.00000   48.03704  20.1%     -    0s
     0     0   47.48387    0  107   40.00000   47.48387  18.7%     -    0s
H    0     0                      41.0000000   47.48387  15.8%     -    0s
     0     0   47.18750    0  109   41.00000   47.18750  15.1%     -    0s
     0     0   46.80663    0  112   41.00000   46.80663  14.2%     -    0s
     0     0   46.68096    0  111   41.00000   46.68096  13.9%     -    0s
     0     0   46.60947    0  111   41.00000   46.60947  13.7%     -    0s
     0     0   46.56284    0  113   41.00000   46.56284  13.6%     -    0s
     0     0   46.54414    0  113   41.00000   46.54414  13.5%     -    0s
     0     0   46.54414    0  113   41.00000   46.54414  13.5%     -    0s
     0     2   46.54235    0  113   41.00000   46.54235  13.5%     -    0s
*   31    14              16      42.0000000   46.34259  10.3%  27.0    0s
H  158    32                      43.0000000   45.30729  5.37%  23.0    0s

Cutting planes:
  Zero half: 91

Explored 240 nodes (5949 simplex iterations) in 0.22 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%