Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:10 2012 Optimize a model with 811 rows, 870 columns and 3159 nonzeros Presolve removed 9 rows and 205 columns Presolve time: 0.03s Presolved: 802 rows, 665 columns, 2900 nonzeros Variable types: 0 continuous, 665 integer (665 binary) Found heuristic solution: objective 29.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 48 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 44 3.00000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (94 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%