Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:51:39 2012

Optimize a model with 642 rows, 114 columns and 1284 nonzeros
Presolve removed 238 rows and 0 columns
Presolve time: 0.00s
Presolved: 404 rows, 114 columns, 1001 nonzeros
Variable types: 0 continuous, 114 integer (114 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 3.966120e+01, 283 iterations, 0.01 seconds

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

     0     0   39.66120    0  112   27.00000   39.66120  46.9%     -    0s
     0     0   39.09962    0  113   27.00000   39.09962  44.8%     -    0s
     0     0   38.87392    0  113   27.00000   38.87392  44.0%     -    0s
H    0     0                      29.0000000   38.87392  34.0%     -    0s
     0     0   38.74734    0  112   29.00000   38.74734  33.6%     -    0s
H    0     0                      30.0000000   38.74734  29.2%     -    0s
     0     0   38.57685    0  113   30.00000   38.57685  28.6%     -    0s
     0     0   38.53632    0  114   30.00000   38.53632  28.5%     -    0s
     0     0   38.44557    0  114   30.00000   38.44557  28.2%     -    0s
     0     0   38.43754    0  114   30.00000   38.43754  28.1%     -    0s
     0     0   38.43754    0  114   30.00000   38.43754  28.1%     -    0s
     0     2   38.43502    0  114   30.00000   38.43502  28.1%     -    0s
*   66    35              17      31.0000000   38.01764  22.6%  26.0    0s
*   86    33              10      32.0000000   37.57395  17.4%  29.5    0s

Explored 2647 nodes (54991 simplex iterations) in 2.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%