Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:35 2012

Optimize a model with 189 rows, 145 columns and 615 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 189 rows, 144 columns, 614 nonzeros
Variable types: 0 continuous, 144 integer (143 binary)
Found heuristic solution: objective 48.0000000

Root relaxation: objective 0.000000e+00, 89 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   49   48.00000    0.00000   100%     -    0s
H    0     0                      35.0000000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.47917    0   52   26.00000    0.47917  98.2%     -    0s
     0     0    1.35848    0   52   26.00000    1.35848  94.8%     -    0s
H    0     0                      24.0000000    1.35848  94.3%     -    0s
     0     0    1.59416    0   54   24.00000    1.59416  93.4%     -    0s
     0     0    1.59416    0   54   24.00000    1.59416  93.4%     -    0s
     0     2    1.62647    0   54   24.00000    1.62647  93.2%     -    0s
*   30    29              19      23.0000000    2.93237  87.3%  19.5    0s
H   82    50                      20.0000000    4.55290  77.2%  20.3    0s
*  250    97              11      19.0000000    6.84158  64.0%  19.3    0s
*  650   145              22      18.0000000   11.10686  38.3%  19.1    0s
*  919    69              23      17.0000000   11.54054  32.1%  18.8    0s

Explored 1059 nodes (19686 simplex iterations) in 0.57 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%