Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:15 2012

Optimize a model with 283 rows, 208 columns and 913 nonzeros
Presolve time: 0.00s
Presolved: 283 rows, 208 columns, 913 nonzeros
Variable types: 0 continuous, 208 integer (208 binary)
Found heuristic solution: objective 65.0000000

Root relaxation: objective 0.000000e+00, 104 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   67   65.00000    0.00000   100%     -    0s
H    0     0                      47.0000000    0.00000   100%     -    0s
H    0     0                      43.0000000    0.00000   100%     -    0s
     0     0    0.56414    0   72   43.00000    0.56414  98.7%     -    0s
     0     0    0.57538    0   71   43.00000    0.57538  98.7%     -    0s
H    0     0                      41.0000000    0.57538  98.6%     -    0s
     0     0    0.59350    0   70   41.00000    0.59350  98.6%     -    0s
H    0     0                      38.0000000    0.59350  98.4%     -    0s
     0     0    0.60147    0   71   38.00000    0.60147  98.4%     -    0s
     0     0    0.64097    0   72   38.00000    0.64097  98.3%     -    0s
     0     0    0.65494    0   72   38.00000    0.65494  98.3%     -    0s
     0     0    0.65830    0   74   38.00000    0.65830  98.3%     -    0s
     0     2    0.67241    0   74   38.00000    0.67241  98.2%     -    0s
*   27    27              18      34.0000000    3.45016  89.9%  28.1    0s
*   53    39              16      28.0000000    3.50413  87.5%  24.8    0s
*  419   138              12      26.0000000   13.58493  47.8%  17.1    0s

Cutting planes:
  Gomory: 1
  Zero half: 4
  Mod-K: 1

Explored 1531 nodes (22445 simplex iterations) in 0.90 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%