Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:26:08 2013 Optimize a model with 1324 rows, 26450 columns and 1451889 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 1.31s Presolved: 1322 rows, 26450 columns, 1451865 nonzeros Variable types: 0 continuous, 26450 integer (26450 binary) Found heuristic solution: objective 12002.000000 Root relaxation: objective 9.770500e+03, 6373 iterations, 3.62 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9770.50000 0 70 12002.0000 9770.50000 18.6% - 5s H 0 0 9975.0000000 9770.50000 2.05% - 7s * 0 0 0 9783.0000000 9783.00000 0.0% - 10s Cutting planes: Clique: 11 Zero half: 20 Explored 0 nodes (7712 simplex iterations) in 10.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.783000000000e+03, best bound 9.783000000000e+03, gap 0.0%