Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:34:41 2012 Optimize a model with 10003 rows, 15006 columns and 44406 nonzeros Presolve removed 33 rows and 3784 columns Presolve time: 0.17s Presolved: 9970 rows, 11222 columns, 40460 nonzeros Variable types: 0 continuous, 11222 integer (11222 binary) Found heuristic solution: objective 122.0000000 Root relaxation: objective 2.000000e+00, 7157 iterations, 0.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 110 122.00000 2.00000 98.4% - 0s H 0 0 105.0000000 2.00000 98.1% - 0s H 0 0 3.0000000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Cutting planes: Gomory: 1 Zero half: 2 Explored 0 nodes (23425 simplex iterations) in 0.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%