Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:19 2013 Optimize a model with 1014 rows, 3012 columns and 8021 nonzeros Presolve removed 354 rows and 1037 columns Presolve time: 0.13s Presolved: 660 rows, 1975 columns, 3950 nonzeros Variable types: 1317 continuous, 658 integer (658 binary) Found heuristic solution: objective 3279.1930789 Root relaxation: objective 3.278822e+03, 2 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3278.82202 0 1 3279.19308 3278.82202 0.01% - 0s Explored 0 nodes (2 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.279193078893e+03, best bound 3.279193078893e+03, gap 0.0%