Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:23:19 2013 Optimize a model with 1303 rows, 24823 columns and 1408829 nonzeros Presolve removed 47 rows and 342 columns Presolve time: 4.55s Presolved: 1256 rows, 24481 columns, 1387510 nonzeros Variable types: 0 continuous, 24481 integer (24481 binary) Found heuristic solution: objective 11505.000000 Root relaxation: objective 9.594636e+03, 5652 iterations, 2.84 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9594.63636 0 97 11505.0000 9594.63636 16.6% - 8s H 0 0 9609.0000000 9594.63636 0.15% - 9s * 0 0 0 9595.0000000 9595.00000 0.0% - 10s Cutting planes: Clique: 8 Zero half: 41 Explored 0 nodes (6879 simplex iterations) in 10.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.595000000000e+03, best bound 9.595000000000e+03, gap 0.0%