Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:34:16 2012 Optimize a model with 11867 rows, 16770 columns and 51727 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.19s Presolved: 11994 rows, 16768 columns, 68184 nonzeros Variable types: 0 continuous, 16768 integer (16768 binary) Found heuristic solution: objective 129.0000000 Root relaxation: objective 2.000000e+00, 8172 iterations, 0.29 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 146 129.00000 2.00000 98.4% - 1s H 0 0 124.0000000 2.00000 98.4% - 1s H 0 0 3.0000000 2.00000 33.3% - 1s Cutting planes: Zero half: 1 Explored 0 nodes (25530 simplex iterations) in 1.14 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%