Gurobi 5.0.1 (linux64) logging started Sat Nov 17 10:17:58 2012 Optimize a model with 72029 rows, 60270 columns and 275133 nonzeros Presolve removed 518 rows and 6372 columns Presolve time: 1.85s Presolved: 71511 rows, 53898 columns, 266954 nonzeros Variable types: 0 continuous, 53898 integer (53898 binary) Found heuristic solution: objective 245.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 34490 3.0000962e+00 2.254000e+01 0.000000e+00 5s 38315 3.0000988e+00 3.244531e+01 0.000000e+00 10s 41222 3.0001006e+00 3.551316e+01 0.000000e+00 15s 44282 3.0001031e+00 7.510640e+01 0.000000e+00 20s 47036 3.0001046e+00 3.684482e+01 0.000000e+00 25s 50096 3.0001071e+00 1.370497e+01 0.000000e+00 30s 53309 3.0001104e+00 4.145455e+01 0.000000e+00 35s 56828 3.0001164e+00 8.819353e+00 0.000000e+00 40s 59513 3.0000000e+00 0.000000e+00 0.000000e+00 44s Root relaxation: objective 3.000000e+00, 59513 iterations, 44.35 seconds Total elapsed time = 105.99s Total elapsed time = 110.63s 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% - 110s Explored 0 nodes (141968 simplex iterations) in 110.90 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%