Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:18:12 2013

Optimize a model with 5 rows, 250 columns and 1250 nonzeros
Presolve time: 0.00s
Presolved: 5 rows, 250 columns, 1250 nonzeros
Variable types: 0 continuous, 250 integer (250 binary)
Found heuristic solution: objective 48899.000000

Root relaxation: objective 5.905047e+04, 20 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 59050.4736    0    5 48899.0000 59050.4736  20.8%     -    0s
H    0     0                    58701.000000 59050.4736  0.60%     -    0s
     0     0 59048.7061    0    7 58701.0000 59048.7061  0.59%     -    0s
     0     0 59048.1146    0    7 58701.0000 59048.1146  0.59%     -    0s
H    0     0                    58765.000000 59048.1146  0.48%     -    0s
     0     0 59048.1146    0    5 58765.0000 59048.1146  0.48%     -    0s
     0     0 59048.1121    0    8 58765.0000 59048.1121  0.48%     -    0s
     0     0 59047.7267    0    9 58765.0000 59047.7267  0.48%     -    0s
H    0     0                    58813.000000 59047.7267  0.40%     -    0s
     0     2 59047.1797    0    9 58813.0000 59047.1797  0.40%     -    0s
H  600   484                    58832.000000 59037.5753  0.35%   2.1    0s
H  600   459                    58838.000000 59037.5753  0.34%   2.1    0s
H 4031  2633                    58849.000000 59030.7383  0.31%   2.3    0s
H15250 10518                    58875.000000 59019.3766  0.25%   2.2    1s
H44281 11603                    58959.000000 59011.9253  0.09%   2.2    2s

Cutting planes:
  Gomory: 3
  Cover: 1

Explored 86768 nodes (195640 simplex iterations) in 4.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.895900000000e+04, best bound 5.896400000000e+04, gap 0.0085%