Optimize a model with 24 rows, 276 columns and 552 nonzeros Presolve time: 0.00s Presolved: 24 rows, 276 columns, 552 nonzeros Variable types: 0 continuous, 276 integer (276 binary) Root relaxation: objective 1.224500e+03, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1224.50000 0 6 - 1224.50000 - - 0s * 0 0 0 1272.0000000 1272.00000 0.0% - 0s Cutting planes: Zero half: 2 Explored 0 nodes (57 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.272000000000e+03, best bound 1.272000000000e+03, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:42:23 2012