Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:28:03 2012 Optimize a model with 45599 rows, 40200 columns and 175998 nonzeros Presolve removed 402 rows and 2 columns Presolve time: 1.10s Presolved: 45397 rows, 40198 columns, 214546 nonzeros Variable types: 0 continuous, 40198 integer (40198 binary) Found heuristic solution: objective 200.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 31534 3.0000767e+00 3.334190e+02 0.000000e+00 5s 37284 3.0000842e+00 9.744444e+01 0.000000e+00 10s 42159 3.0000896e+00 5.038494e+02 0.000000e+00 15s 46169 3.0000000e+00 0.000000e+00 0.000000e+00 19s Root relaxation: objective 3.000000e+00, 46169 iterations, 18.79 seconds Total elapsed time = 30.64s 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% - 32s Explored 0 nodes (81639 simplex iterations) in 32.34 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%