Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:09:21 2012 Optimize a model with 37554 rows, 34410 columns and 146148 nonzeros Presolve removed 1112 rows and 2 columns Presolve time: 0.90s Presolved: 36627 rows, 34408 columns, 177204 nonzeros Variable types: 0 continuous, 34408 integer (34408 binary) Found heuristic solution: objective 185.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 22818 3.0000744e+00 6.586364e+01 0.000000e+00 5s 24432 3.0000000e+00 0.000000e+00 0.000000e+00 6s Root relaxation: objective 3.000000e+00, 24432 iterations, 6.16 seconds Total elapsed time = 16.88s Total elapsed time = 20.22s 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% - 20s Explored 0 nodes (70709 simplex iterations) in 20.54 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%