Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:51:37 2012 Optimize a model with 42629 rows, 41412 columns and 168285 nonzeros Presolve removed 814 rows and 2 columns Presolve time: 1.04s Presolved: 42018 rows, 41410 columns, 207052 nonzeros Variable types: 0 continuous, 41410 integer (41410 binary) Found heuristic solution: objective 203.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 30429 3.0000878e+00 4.569471e+02 0.000000e+00 5s 35269 3.0000925e+00 8.224937e+01 0.000000e+00 10s 39223 3.0000000e+00 0.000000e+00 0.000000e+00 14s Root relaxation: objective 3.000000e+00, 39223 iterations, 14.03 seconds Total elapsed time = 39.27s Total elapsed time = 41.01s 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% - 41s Explored 0 nodes (95103 simplex iterations) in 41.62 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%