Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:16 2012 Optimize a model with 190 rows, 110 columns and 640 nonzeros Presolve removed 90 rows and 0 columns Presolve time: 0.00s Presolved: 100 rows, 110 columns, 430 nonzeros Variable types: 0 continuous, 110 integer (110 binary) Found heuristic solution: objective 4.0000000 Root relaxation: cutoff, 93 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 4.00000 3.00001 25.0% - 0s Explored 0 nodes (93 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%