Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:08:20 2012 Optimize a model with 58911 rows, 50400 columns and 226014 nonzeros Presolve removed 898 rows and 2 columns Presolve time: 1.59s Presolved: 58237 rows, 50398 columns, 273432 nonzeros Variable types: 0 continuous, 50398 integer (50398 binary) Found heuristic solution: objective 224.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 383 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 infeasible 0 3.00000 2.00000 33.3% - 1s Explored 0 nodes (383 simplex iterations) in 1.77 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%