Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:21 2012

Optimize a model with 530 rows, 101 columns and 1060 nonzeros
Presolve removed 199 rows and 0 columns
Presolve time: 0.00s
Presolved: 331 rows, 101 columns, 837 nonzeros
Variable types: 0 continuous, 101 integer (101 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 3.597761e+01, 280 iterations, 0.01 seconds

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

     0     0   35.97761    0  100   26.00000   35.97761  38.4%     -    0s
     0     0   35.44684    0  100   26.00000   35.44684  36.3%     -    0s
     0     0   35.17980    0   99   26.00000   35.17980  35.3%     -    0s
     0     0   34.73056    0   99   26.00000   34.73056  33.6%     -    0s
H    0     0                      28.0000000   34.73056  24.0%     -    0s
     0     0   34.40343    0  101   28.00000   34.40343  22.9%     -    0s
     0     0   34.31023    0  101   28.00000   34.31023  22.5%     -    0s
     0     0   34.29367    0   99   28.00000   34.29367  22.5%     -    0s
     0     0   34.29366    0   99   28.00000   34.29366  22.5%     -    0s
     0     0   34.29366    0   98   28.00000   34.29366  22.5%     -    0s
     0     2   34.29143    0   98   28.00000   34.29143  22.5%     -    0s
*   46    16               5      29.0000000   34.02279  17.3%  28.8    0s
*  445    32              12      30.0000000   31.69231  5.64%  22.7    0s

Cutting planes:
  Clique: 2
  Zero half: 44

Explored 494 nodes (11489 simplex iterations) in 0.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%