Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:20 2013 Optimize a model with 1014 rows, 3012 columns and 8021 nonzeros Presolve removed 388 rows and 1139 columns Presolve time: 0.12s Presolved: 626 rows, 1873 columns, 3746 nonzeros Variable types: 1249 continuous, 624 integer (624 binary) Found heuristic solution: objective 2148.8203230 Root relaxation: objective 2.148460e+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 2148.45976 0 1 2148.82032 2148.45976 0.02% - 0s H 0 0 2148.8203227 2148.45976 0.02% - 0s Explored 0 nodes (2 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.148820322743e+03, best bound 2.148820322743e+03, gap 0.0%