Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:10:21 2013 Optimize a model with 377 rows, 169 columns and 1183 nonzeros Presolve removed 181 rows and 98 columns Presolve time: 0.01s Presolved: 196 rows, 71 columns, 628 nonzeros Variable types: 4 continuous, 67 integer (67 binary) Found heuristic solution: objective 3155.0000000 Root relaxation: objective 2.717885e+03, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2717.88462 0 3 3155.00000 2717.88462 13.9% - 0s H 0 0 2723.0000000 2717.88462 0.19% - 0s 0 0 2719.67989 0 5 2723.00000 2719.67989 0.12% - 0s 0 0 2719.78073 0 4 2723.00000 2719.78073 0.12% - 0s Explored 0 nodes (20 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.723000000000e+03, best bound 2.723000000000e+03, gap 0.0%