Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:51:33 2012

Optimize a model with 337 rows, 251 columns and 1091 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 337 rows, 250 columns, 1090 nonzeros
Variable types: 0 continuous, 250 integer (249 binary)
Found heuristic solution: objective 78.0000000

Root relaxation: objective 0.000000e+00, 132 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   81   78.00000    0.00000   100%     -    0s
H    0     0                      55.0000000    0.00000   100%     -    0s
H    0     0                      54.0000000    0.00000   100%     -    0s
     0     0    0.64198    0   82   54.00000    0.64198  98.8%     -    0s
H    0     0                      46.0000000    0.64198  98.6%     -    0s
     0     0    1.09983    0   84   46.00000    1.09983  97.6%     -    0s
     0     0    1.10784    0   83   46.00000    1.10784  97.6%     -    0s
     0     0    1.11855    0   85   46.00000    1.11855  97.6%     -    0s
     0     0    1.11855    0   85   46.00000    1.11855  97.6%     -    0s
     0     2    1.12282    0   85   46.00000    1.12282  97.6%     -    0s
*   34    34              20      38.0000000    4.53844  88.1%  33.9    0s
*   38    31              19      37.0000000    4.53844  87.7%  30.4    0s
*   69    47              22      32.0000000    4.54234  85.8%  31.9    0s
*  591   300              18      30.0000000   12.82239  57.3%  27.5    0s
*  885   333              23      29.0000000   13.66409  52.9%  28.5    1s

Explored 2246 nodes (54362 simplex iterations) in 2.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%