Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:50 2013 Optimize a model with 28 rows, 446 columns and 1288 nonzeros Presolve removed 22 rows and 27 columns Presolve time: 0.00s Presolved: 6 rows, 419 columns, 836 nonzeros Variable types: 419 continuous, 0 integer (0 binary) Root relaxation: objective 5.281733e+03, 6 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 1 - 5281.73269 - - 0s 0 2 5281.73269 0 1 - 5281.73269 - - 0s * 15 3 8 5296.3125573 5296.31187 0.00% 1.2 0s Explored 16 nodes (24 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.296312557325e+03, best bound 5.296311871527e+03, gap 0.0000%