Gurobi 5.0.1 (linux64) logging started Sat Nov 17 11:39:29 2012 Optimize a model with 83912 rows, 62250 columns and 312742 nonzeros Presolve removed 515 rows and 4233 columns (presolve time = 5s) ... Presolve removed 517 rows and 4235 columns Presolve time: 7.48s Presolved: 83395 rows, 58015 columns, 306594 nonzeros Variable types: 0 continuous, 58015 integer (58015 binary) Found heuristic solution: objective 249.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 40675 2.9445591e+00 2.405278e+02 0.000000e+00 5s 54049 3.0001624e+00 5.613636e+01 0.000000e+00 10s 57165 3.0001718e+00 7.418487e+02 0.000000e+00 15s 59297 3.0001753e+00 7.495287e+02 0.000000e+00 20s 61757 3.0001788e+00 5.465016e+01 0.000000e+00 25s 64053 3.0001818e+00 6.004001e+01 0.000000e+00 30s 66513 3.0001859e+00 3.195058e+01 0.000000e+00 35s 68973 3.0001897e+00 5.599643e+01 0.000000e+00 40s 71269 3.0001926e+00 5.013945e+02 0.000000e+00 45s 73729 3.0001960e+00 7.420529e+02 0.000000e+00 50s 76025 3.0001997e+00 1.386222e+01 0.000000e+00 55s 78485 3.0002039e+00 1.521332e+02 0.000000e+00 60s 80945 3.0002083e+00 2.652019e+02 0.000000e+00 65s 83241 3.0002123e+00 2.191491e+02 0.000000e+00 70s 85701 3.0002171e+00 2.561802e+01 0.000000e+00 75s 87833 3.0002193e+00 1.283542e+02 0.000000e+00 80s 89801 3.0002213e+00 8.915927e+02 0.000000e+00 85s 91933 3.0002242e+00 1.127241e+02 0.000000e+00 90s 94229 3.0002282e+00 6.018063e+02 0.000000e+00 95s 96361 3.0002310e+00 3.406620e+02 0.000000e+00 100s 98493 3.0002341e+00 9.282292e+00 0.000000e+00 105s 100625 3.0002372e+00 5.934742e+01 0.000000e+00 110s 102593 3.0002398e+00 2.886880e+01 0.000000e+00 115s 104725 3.0002422e+00 6.298256e+02 0.000000e+00 120s 106693 3.0002438e+00 7.749037e+01 0.000000e+00 125s 108661 3.0002448e+00 7.727941e+01 0.000000e+00 130s 110465 3.0002455e+00 1.508321e+01 0.000000e+00 135s 112068 3.0000000e+00 0.000000e+00 0.000000e+00 139s Root relaxation: objective 3.000000e+00, 112068 iterations, 139.31 seconds Total elapsed time = 206.37s Total elapsed time = 212.42s Total elapsed time = 219.20s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 257 249.00000 3.00000 98.8% - 219s H 0 0 4.0000000 3.00000 25.0% - 220s H 0 0 3.0000000 3.00000 0.0% - 220s Explored 0 nodes (243731 simplex iterations) in 220.30 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%