Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:13:17 2012 Optimize a model with 2209 rows, 2256 columns and 8695 nonzeros Presolve removed 195 rows and 329 columns Presolve time: 0.04s Presolved: 2014 rows, 1927 columns, 7896 nonzeros Variable types: 0 continuous, 1927 integer (1927 binary) Found heuristic solution: objective 18.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 2249 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (2249 simplex iterations) in 0.08 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%