Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:45:20 2012 Optimize a model with 39950 rows, 37442 columns and 156328 nonzeros Presolve removed 388 rows and 2 columns Presolve time: 0.97s Presolved: 39755 rows, 37440 columns, 192202 nonzeros Variable types: 0 continuous, 37440 integer (37440 binary) Found heuristic solution: objective 193.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 28745 3.0000751e+00 6.815385e+01 0.000000e+00 5s 32433 3.0000000e+00 0.000000e+00 0.000000e+00 7s Root relaxation: objective 3.000000e+00, 32433 iterations, 7.47 seconds Total elapsed time = 21.15s 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% - 24s Explored 0 nodes (80920 simplex iterations) in 24.81 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%