Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:15:18 2012

Optimize a model with 305 rows, 203 columns and 963 nonzeros
Presolve time: 0.00s
Presolved: 305 rows, 203 columns, 963 nonzeros
Variable types: 0 continuous, 203 integer (203 binary)
Found heuristic solution: objective 74.0000000

Root relaxation: objective 0.000000e+00, 99 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   51   74.00000    0.00000   100%     -    0s
H    0     0                      65.0000000    0.00000   100%     -    0s
H    0     0                      60.0000000    0.00000   100%     -    0s
     0     0    0.74641    0   53   60.00000    0.74641  98.8%     -    0s
     0     0    0.92648    0   57   60.00000    0.92648  98.5%     -    0s
     0     0    0.95277    0   55   60.00000    0.95277  98.4%     -    0s
     0     0    0.99013    0   56   60.00000    0.99013  98.3%     -    0s
     0     0    0.99822    0   54   60.00000    0.99822  98.3%     -    0s
     0     0    0.99822    0   54   60.00000    0.99822  98.3%     -    0s
     0     0    0.99822    0   54   60.00000    0.99822  98.3%     -    0s
     0     2    1.00271    0   54   60.00000    1.00271  98.3%     -    0s
*   40    40              22      45.0000000    4.31818  90.4%  26.0    0s
*   46    39              28      44.0000000    4.31818  90.2%  22.9    0s
*  120    84              20      41.0000000    6.97934  83.0%  22.5    0s
H  354   207                      38.0000000   12.20833  67.9%  22.6    0s
H 2147   310                      37.0000000   24.66667  33.3%  22.5    1s

Explored 4601 nodes (100062 simplex iterations) in 3.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%