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 30 columns Presolve time: 0.00s Presolved: 34 rows, 230 columns, 1672 nonzeros Variable types: 216 continuous, 14 integer (14 binary) Root relaxation: objective 5.497312e+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 5497.31217 0 3 - 5497.31217 - - 0s 0 0 5498.55216 0 4 - 5498.55216 - - 0s 0 0 5503.62267 0 3 - 5503.62267 - - 0s 0 0 5503.91827 0 1 - 5503.91827 - - 0s 0 0 5503.91827 0 1 - 5503.91827 - - 0s H 0 0 5503.9213056 5503.91827 0.00% - 0s Cutting planes: Implied bound: 1 Explored 0 nodes (34 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.503921305563e+03, best bound 5.503918272247e+03, gap 0.0001%