Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:54:00 2012

Optimize a model with 678 rows, 119 columns and 1356 nonzeros
Presolve removed 246 rows and 0 columns
Presolve time: 0.00s
Presolved: 432 rows, 119 columns, 1079 nonzeros
Variable types: 0 continuous, 119 integer (119 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 4.161716e+01, 293 iterations, 0.01 seconds

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

     0     0   41.61716    0  117   26.00000   41.61716  60.1%     -    0s
H    0     0                      29.0000000   41.61716  43.5%     -    0s
     0     0   41.33720    0  115   29.00000   41.33720  42.5%     -    0s
H    0     0                      30.0000000   41.33720  37.8%     -    0s
     0     0   41.00000    0  114   30.00000   41.00000  36.7%     -    0s
     0     0   41.00000    0  114   30.00000   41.00000  36.7%     -    0s
H    0     0                      31.0000000   41.00000  32.3%     -    0s
     0     0   41.00000    0  115   31.00000   41.00000  32.3%     -    0s
     0     0   41.00000    0  115   31.00000   41.00000  32.3%     -    0s
     0     2   41.00000    0  115   31.00000   41.00000  32.3%     -    0s
H    8     8                      32.0000000   41.00000  28.1%  81.8    0s
*  250    84              12      33.0000000   38.72381  17.3%  26.4    0s

Explored 4228 nodes (90382 simplex iterations) in 3.44 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%