Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:52:09 2012 Optimize a model with 62719 rows, 50400 columns and 237438 nonzeros Presolve removed 1370 rows and 5378 columns Presolve time: 4.72s Presolved: 61349 rows, 45022 columns, 228154 nonzeros Variable types: 0 continuous, 45022 integer (45022 binary) Found heuristic solution: objective 224.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 35808 3.0000851e+00 3.367857e+01 0.000000e+00 5s 41242 3.0000942e+00 8.920631e+01 0.000000e+00 10s 44817 3.0000972e+00 5.149108e+01 0.000000e+00 15s 48106 3.0000994e+00 3.696567e+02 0.000000e+00 20s 51538 3.0001017e+00 4.080266e+01 0.000000e+00 25s 54684 3.0001038e+00 3.132981e+02 0.000000e+00 30s 57687 3.0001057e+00 1.502058e+01 0.000000e+00 35s 60690 3.0001081e+00 5.979012e+01 0.000000e+00 40s 63693 3.0001101e+00 9.153275e+00 0.000000e+00 45s 66696 3.0001119e+00 7.606818e+00 0.000000e+00 50s 69080 3.0000000e+00 0.000000e+00 0.000000e+00 54s Root relaxation: objective 3.000000e+00, 69080 iterations, 53.87 seconds Total elapsed time = 96.62s 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% - 98s Explored 0 nodes (140869 simplex iterations) in 98.92 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%