Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:19:09 2013 Optimize a model with 879 rows, 14560 columns and 591758 nonzeros Presolve removed 6 rows and 5 columns Presolve time: 2.77s Presolved: 873 rows, 14555 columns, 591409 nonzeros Variable types: 0 continuous, 14555 integer (14555 binary) Found heuristic solution: objective 7267.0000000 Root relaxation: objective 5.355000e+03, 3302 iterations, 0.81 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5355.00000 0 31 7267.00000 5355.00000 26.3% - 3s H 0 0 5409.0000000 5355.00000 1.00% - 3s 0 0 5358.00000 0 49 5409.00000 5358.00000 0.94% - 4s H 0 0 5405.0000000 5358.00000 0.87% - 6s 0 0 5358.00000 0 31 5405.00000 5358.00000 0.87% - 6s 0 0 5358.00000 0 48 5405.00000 5358.00000 0.87% - 7s H 0 0 5385.0000000 5358.00000 0.50% - 7s 0 0 5360.00000 0 34 5385.00000 5360.00000 0.46% - 7s 0 1 5362.16667 0 34 5385.00000 5362.16667 0.42% - 8s 2 2 5362.16667 0 49 5385.00000 5362.16667 0.42% 154 11s * 5 3 10 5365.0000000 5365.00000 0.0% 61.4 12s Cutting planes: Gomory: 3 Clique: 6 Zero half: 2 Explored 5 nodes (10108 simplex iterations) in 12.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.365000000000e+03, best bound 5.365000000000e+03, gap 0.0%