Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:25:16 2012 Optimize a model with 59624 rows, 50850 columns and 228598 nonzeros Presolve removed 452 rows and 2 columns Presolve time: 1.50s Presolved: 59397 rows, 50848 columns, 277572 nonzeros Variable types: 0 continuous, 50848 integer (50848 binary) Found heuristic solution: objective 225.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 380 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 (380 simplex iterations) in 1.70 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%