Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:19:15 2012 Optimize a model with 25199 rows, 28392 columns and 103150 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.57s Presolved: 25365 rows, 28390 columns, 131074 nonzeros Variable types: 0 continuous, 28390 integer (28390 binary) Found heuristic solution: objective 168.0000000 Root relaxation: objective 2.000000e+00, 17860 iterations, 1.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 266 168.00000 2.00000 98.8% - 3s H 0 0 3.0000000 2.00000 33.3% - 3s Cutting planes: Zero half: 1 Explored 0 nodes (56362 simplex iterations) in 3.60 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%