Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:36 2013 Optimize a model with 216 rows, 413 columns and 1425 nonzeros Presolve removed 36 rows and 60 columns Presolve time: 0.01s Presolved: 180 rows, 353 columns, 1058 nonzeros Variable types: 177 continuous, 176 integer (176 binary) Found heuristic solution: objective 3279.1924917 Root relaxation: objective 3.276045e+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 3276.04530 0 2 3279.19249 3276.04530 0.10% - 0s 0 0 3277.00335 0 2 3279.19249 3277.00335 0.07% - 0s 0 0 3277.93623 0 2 3279.19249 3277.93623 0.04% - 0s 0 0 3278.84508 0 2 3279.19249 3278.84508 0.01% - 0s 0 0 cutoff 0 3279.19249 3279.19249 0.0% - 0s Explored 0 nodes (21 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.279192491716e+03, best bound 3.279192491716e+03, gap 0.0%