Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:53 2012 Optimize a model with 1329 rows, 1260 columns and 5073 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.08s Presolved: 1362 rows, 1258 columns, 6222 nonzeros Variable types: 0 continuous, 1258 integer (1258 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 2.000000e+00, 856 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 56 35.00000 2.00000 94.3% - 0s H 0 0 21.0000000 2.00000 90.5% - 0s H 0 0 3.0000000 2.00000 33.3% - 0s Cutting planes: Zero half: 1 Explored 0 nodes (2411 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%