Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:55 2013 Optimize a model with 325 rows, 1715 columns and 61934 nonzeros Presolve removed 9 rows and 9 columns Presolve time: 0.27s Presolved: 316 rows, 1706 columns, 61358 nonzeros Variable types: 0 continuous, 1706 integer (1706 binary) Found heuristic solution: objective 1398.0000000 Root relaxation: objective 9.820000e+02, 240 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 982.00000 0 12 1398.00000 982.00000 29.8% - 0s H 0 0 1003.0000000 982.00000 2.09% - 0s H 0 0 989.0000000 982.00000 0.71% - 0s 0 0 cutoff 0 989.00000 988.00099 0.10% - 0s Cutting planes: Gomory: 1 Clique: 2 Zero half: 2 Explored 0 nodes (337 simplex iterations) in 0.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.890000000000e+02, best bound 9.890000000000e+02, gap 0.0%