Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:37:25 2012 Optimize a model with 37439 rows, 37056 columns and 148414 nonzeros Presolve removed 412 rows and 4994 columns Presolve time: 0.96s Presolved: 37027 rows, 32062 columns, 142076 nonzeros Variable types: 0 continuous, 32062 integer (32062 binary) Found heuristic solution: objective 192.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27901 3.0000741e+00 1.136364e+01 0.000000e+00 5s 28252 3.0000000e+00 0.000000e+00 0.000000e+00 5s Root relaxation: objective 3.000000e+00, 28252 iterations, 5.18 seconds Total elapsed time = 16.96s 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% - 19s Explored 0 nodes (65993 simplex iterations) in 19.22 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%