Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:47:13 2012

Optimize a model with 245 rows, 169 columns and 779 nonzeros
Presolve time: 0.00s
Presolved: 245 rows, 169 columns, 779 nonzeros
Variable types: 0 continuous, 169 integer (169 binary)
Found heuristic solution: objective 50.0000000

Root relaxation: objective 0.000000e+00, 84 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   47   50.00000    0.00000   100%     -    0s
H    0     0                      48.0000000    0.00000   100%     -    0s
     0     0    0.75094    0   49   48.00000    0.75094  98.4%     -    0s
H    0     0                      47.0000000    0.75094  98.4%     -    0s
     0     0    0.84507    0   49   47.00000    0.84507  98.2%     -    0s
H    0     0                      45.0000000    0.84507  98.1%     -    0s
     0     0    0.88611    0   49   45.00000    0.88611  98.0%     -    0s
     0     0    0.93116    0   49   45.00000    0.93116  97.9%     -    0s
H    0     0                      44.0000000    0.93116  97.9%     -    0s
     0     0    0.93116    0   49   44.00000    0.93116  97.9%     -    0s
     0     0    0.93116    0   49   44.00000    0.93116  97.9%     -    0s
     0     2    0.93665    0   49   44.00000    0.93665  97.9%     -    0s
*   32    28              20      38.0000000    3.15686  91.7%  26.5    0s
*   57    42              17      33.0000000    3.21632  90.3%  24.6    0s
*   61    38              16      32.0000000    3.21632  89.9%  23.4    0s
*  170   110              12      31.0000000    8.33333  73.1%  25.3    0s
*  955   250              28      30.0000000   15.82500  47.3%  22.6    0s

Explored 2654 nodes (55059 simplex iterations) in 1.61 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%