Gurobi 5.0.1 (linux64) logging started Sat Nov 17 11:08:40 2012 Optimize a model with 85063 rows, 61752 columns and 315702 nonzeros Presolve removed 3001 rows and 6200 columns (presolve time = 5s) ... Presolve removed 3003 rows and 6202 columns Presolve time: 7.84s Presolved: 82060 rows, 55550 columns, 301648 nonzeros Variable types: 0 continuous, 55550 integer (55550 binary) Found heuristic solution: objective 248.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 33544 3.0000943e+00 3.730769e+01 0.000000e+00 5s 36804 3.0000969e+00 2.264706e+01 0.000000e+00 10s 39738 3.0000991e+00 1.298577e+03 0.000000e+00 15s 42346 3.0001012e+00 9.074676e+01 0.000000e+00 20s 44791 3.0001029e+00 2.053756e+02 0.000000e+00 25s 47073 3.0001040e+00 1.736462e+02 0.000000e+00 30s 49518 3.0001055e+00 6.898854e+01 0.000000e+00 35s 51800 3.0001068e+00 5.527084e+01 0.000000e+00 40s 54245 3.0001082e+00 8.530071e+01 0.000000e+00 45s 56364 3.0001092e+00 3.401804e+01 0.000000e+00 50s 58809 3.0001109e+00 5.655779e+01 0.000000e+00 55s 61254 3.0001132e+00 1.310415e+01 0.000000e+00 60s 63536 3.0001159e+00 4.906900e+01 0.000000e+00 65s 65818 3.0001190e+00 2.104470e+01 0.000000e+00 70s 67937 3.0001216e+00 1.283103e+01 0.000000e+00 75s 70056 3.0001243e+00 8.795723e+02 0.000000e+00 80s 72175 3.0001272e+00 5.208313e+01 0.000000e+00 85s 74294 3.0001296e+00 5.748350e+01 0.000000e+00 90s 76087 3.0001300e+00 1.317337e+01 0.000000e+00 95s 77723 3.0000000e+00 0.000000e+00 0.000000e+00 99s Root relaxation: objective 3.000000e+00, 77723 iterations, 99.41 seconds Total elapsed time = 226.42s Total elapsed time = 242.60s 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% - 246s Explored 0 nodes (244414 simplex iterations) in 247.00 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%