Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:20 2013 Optimize a model with 232 rows, 446 columns and 1490 nonzeros Presolve removed 161 rows and 305 columns Presolve time: 0.01s Presolved: 71 rows, 141 columns, 407 nonzeros Variable types: 79 continuous, 62 integer (62 binary) Found heuristic solution: objective 7666.4565747 Root relaxation: objective 7.664634e+03, 7 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7664.63441 0 1 7666.45657 7664.63441 0.02% - 0s H 0 0 7664.6434662 7664.63441 0.00% - 0s Explored 0 nodes (13 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.664643466184e+03, best bound 7.664634407493e+03, gap 0.0001%