Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:13:33 2012 Optimize a model with 27554 rows, 27390 columns and 109228 nonzeros Presolve removed 662 rows and 2 columns Presolve time: 0.63s Presolved: 27057 rows, 27388 columns, 134477 nonzeros Variable types: 0 continuous, 27388 integer (27388 binary) Found heuristic solution: objective 165.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 23747 3.0000000e+00 0.000000e+00 0.000000e+00 5s Root relaxation: objective 3.000000e+00, 23747 iterations, 5.01 seconds Total elapsed time = 16.29s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 18s Explored 0 nodes (62629 simplex iterations) in 18.10 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%