Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:09 2012 Optimize a model with 233 rows, 100 columns and 466 nonzeros Presolve removed 42 rows and 6 columns Presolve time: 0.00s Presolved: 191 rows, 94 columns, 395 nonzeros Variable types: 0 continuous, 94 integer (94 binary) Found heuristic solution: objective 42.0000000 Root relaxation: objective 4.675000e+01, 127 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46.75000 0 74 42.00000 46.75000 11.3% - 0s 0 0 45.64286 0 94 42.00000 45.64286 8.67% - 0s H 0 0 43.0000000 45.64286 6.15% - 0s 0 0 45.00000 0 91 43.00000 45.00000 4.65% - 0s 0 0 44.85714 0 80 43.00000 44.85714 4.32% - 0s H 0 0 44.0000000 44.85714 1.95% - 0s Cutting planes: Gomory: 1 Zero half: 12 Explored 0 nodes (292 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%