Gurobi 5.0.1 (linux64) logging started Sat Nov 17 09:50:24 2012 Optimize a model with 81251 rows, 59780 columns and 302314 nonzeros Presolve removed 511 rows and 5612 columns (presolve time = 5s) ... Presolve removed 513 rows and 5614 columns Presolve time: 7.02s Presolved: 80738 rows, 54166 columns, 294820 nonzeros Variable types: 0 continuous, 54166 integer (54166 binary) Found heuristic solution: objective 244.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 37238 3.0000766e+00 6.760000e+02 0.000000e+00 5s 49432 3.0001605e+00 6.893333e+01 0.000000e+00 10s 56739 3.0001706e+00 2.065492e+02 0.000000e+00 15s 58845 3.0001763e+00 2.907617e+01 0.000000e+00 20s 61113 3.0001791e+00 4.142570e+01 0.000000e+00 25s 63543 3.0001823e+00 2.000166e+01 0.000000e+00 30s 65973 3.0001859e+00 4.253441e+01 0.000000e+00 35s 68403 3.0001893e+00 2.366037e+01 0.000000e+00 40s 70833 3.0001924e+00 4.281808e+01 0.000000e+00 45s 73101 3.0001949e+00 6.281688e+01 0.000000e+00 50s 75531 3.0001975e+00 5.015845e+02 0.000000e+00 55s 77799 3.0002006e+00 2.940602e+01 0.000000e+00 60s 80067 3.0002031e+00 1.063083e+02 0.000000e+00 65s 82497 3.0002061e+00 3.454458e+01 0.000000e+00 70s 84765 3.0002084e+00 3.708082e+01 0.000000e+00 75s 87033 3.0002109e+00 3.542131e+01 0.000000e+00 80s 89463 3.0002144e+00 3.793928e+02 0.000000e+00 85s 91569 3.0002171e+00 5.303437e+01 0.000000e+00 90s 93675 3.0002198e+00 5.372852e+01 0.000000e+00 95s 95781 3.0002218e+00 3.334377e+01 0.000000e+00 100s 98049 3.0002255e+00 2.846678e+02 0.000000e+00 105s 100155 3.0002277e+00 1.950608e+01 0.000000e+00 110s 102261 3.0002298e+00 1.959741e+02 0.000000e+00 115s 104367 3.0002319e+00 7.390909e+01 0.000000e+00 120s 106473 3.0002336e+00 3.217274e+01 0.000000e+00 125s 108579 3.0002351e+00 4.186699e+01 0.000000e+00 130s 110685 3.0002368e+00 6.511739e+00 0.000000e+00 135s 112629 3.0002373e+00 9.012411e+00 0.000000e+00 140s 114527 3.0000000e+00 0.000000e+00 0.000000e+00 145s Root relaxation: objective 3.000000e+00, 114527 iterations, 144.70 seconds Total elapsed time = 223.85s Total elapsed time = 236.99s Total elapsed time = 243.27s Total elapsed time = 245.42s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 98 244.00000 3.00000 98.8% - 246s H 0 0 4.0000000 3.00000 25.0% - 246s H 0 0 3.0000000 3.00000 0.0% - 246s Explored 0 nodes (269625 simplex iterations) in 246.67 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%