Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:12:49 2012 Optimize a model with 2429 rows, 2070 columns and 9133 nonzeros Presolve removed 274 rows and 92 columns Presolve time: 0.10s Presolved: 2155 rows, 1978 columns, 8272 nonzeros Variable types: 0 continuous, 1978 integer (1978 binary) Found heuristic solution: objective 45.0000000 Root relaxation: objective 3.000000e+00, 1176 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 14 45.00000 3.00000 93.3% - 0s H 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (5048 simplex iterations) in 0.29 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%