Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:13:53 2012 Optimize a model with 40787 rows, 39402 columns and 160774 nonzeros Presolve removed 1220 rows and 2 columns Presolve time: 1.00s Presolved: 39765 rows, 39400 columns, 196537 nonzeros Variable types: 0 continuous, 39400 integer (39400 binary) Found heuristic solution: objective 198.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 22496 3.0000782e+00 1.231324e+02 0.000000e+00 5s 27334 3.0000838e+00 1.748101e+01 0.000000e+00 10s 29122 3.0000000e+00 0.000000e+00 0.000000e+00 11s Root relaxation: objective 3.000000e+00, 29122 iterations, 11.29 seconds 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% - 29s Explored 0 nodes (56235 simplex iterations) in 29.22 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%