Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:00 2012 Optimize a model with 112 rows, 64 columns and 224 nonzeros Presolve removed 75 rows and 36 columns Presolve time: 0.00s Presolved: 37 rows, 28 columns, 76 nonzeros Variable types: 0 continuous, 28 integer (28 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 3.200000e+01, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 32.0000000 32.00000 0.0% - 0s Explored 0 nodes (46 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%