Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:06 2012 Optimize a model with 205 rows, 91 columns and 410 nonzeros Presolve removed 45 rows and 10 columns Presolve time: 0.00s Presolved: 160 rows, 81 columns, 332 nonzeros Variable types: 0 continuous, 81 integer (81 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 4.250000e+01, 99 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 42.50000 0 63 39.00000 42.50000 8.97% - 0s H 0 0 40.0000000 42.50000 6.25% - 0s * 0 0 0 42.0000000 42.00000 0.0% - 0s Cutting planes: Gomory: 1 Zero half: 23 Explored 0 nodes (158 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%