Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:21 2013 Optimize a model with 56 rows, 260 columns and 1930 nonzeros Presolve removed 22 rows and 27 columns Presolve time: 0.00s Presolved: 34 rows, 233 columns, 1678 nonzeros Variable types: 219 continuous, 14 integer (14 binary) Root relaxation: objective 5.281733e+03, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5281.73269 0 3 - 5281.73269 - - 0s 0 0 5284.41193 0 4 - 5284.41193 - - 0s 0 0 5294.85273 0 3 - 5294.85273 - - 0s 0 0 5294.85273 0 3 - 5294.85273 - - 0s H 0 0 5296.3109775 5294.85273 0.03% - 0s 0 0 5296.25929 0 1 5296.31098 5296.25929 0.00% - 0s Explored 0 nodes (40 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.296310977461e+03, best bound 5.296259294573e+03, gap 0.0010%