Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:31:58 2012 Optimize a model with 76 rows, 52 columns and 152 nonzeros Presolve removed 51 rows and 30 columns Presolve time: 0.00s Presolved: 25 rows, 22 columns, 51 nonzeros Variable types: 0 continuous, 22 integer (22 binary) Found heuristic solution: objective 26.0000000 Root relaxation: objective 2.700000e+01, 19 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 27.0000000 27.00000 0.0% - 0s Explored 0 nodes (19 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%