Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:09 2012

Optimize a model with 207 rows, 146 columns and 661 nonzeros
Presolve time: 0.00s
Presolved: 207 rows, 146 columns, 661 nonzeros
Variable types: 0 continuous, 146 integer (146 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 0.000000e+00, 78 iterations, 0.00 seconds

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

     0     0    0.00000    0   43   42.00000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
     0     0    0.66886    0   45   37.00000    0.66886  98.2%     -    0s
     0     0    0.70653    0   45   37.00000    0.70653  98.1%     -    0s
H    0     0                      30.0000000    0.70653  97.6%     -    0s
     0     0    0.74308    0   45   30.00000    0.74308  97.5%     -    0s
     0     0    0.75526    0   45   30.00000    0.75526  97.5%     -    0s
     0     0    0.75526    0   45   30.00000    0.75526  97.5%     -    0s
     0     0    0.75526    0   45   30.00000    0.75526  97.5%     -    0s
H    0     0                      29.0000000    0.75526  97.4%     -    0s
     0     2    0.77193    0   45   29.00000    0.77193  97.3%     -    0s
*   25    23              17      25.0000000    4.03226  83.9%  24.3    0s
*   46    25              14      23.0000000    4.06250  82.3%  21.8    0s

Cutting planes:
  Gomory: 1
  Zero half: 11

Explored 571 nodes (9086 simplex iterations) in 0.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%