Gurobi 5.0.1 (linux64) logging started Sat Nov 17 11:03:13 2012 Optimize a model with 81262 rows, 61256 columns and 303808 nonzeros Presolve removed 1000 rows and 2964 columns (presolve time = 5s) ... Presolve removed 1002 rows and 2966 columns Presolve time: 6.97s Presolved: 80260 rows, 58290 columns, 297724 nonzeros Variable types: 0 continuous, 58290 integer (58290 binary) Found heuristic solution: objective 247.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 40893 3.0000321e+00 9.790000e+02 0.000000e+00 5s 53092 3.0001487e+00 3.151500e+02 0.000000e+00 10s 61773 3.0001757e+00 6.940571e+02 0.000000e+00 15s 64041 3.0001832e+00 1.537462e+02 0.000000e+00 20s 66471 3.0001871e+00 1.220799e+02 0.000000e+00 25s 68901 3.0001907e+00 1.587269e+02 0.000000e+00 30s 71169 3.0001937e+00 4.070491e+01 0.000000e+00 35s 73437 3.0001961e+00 2.923376e+02 0.000000e+00 40s 75705 3.0001986e+00 9.596366e+01 0.000000e+00 45s 77973 3.0002017e+00 3.672333e+02 0.000000e+00 50s 80241 3.0002045e+00 8.806830e+01 0.000000e+00 55s 82509 3.0002069e+00 9.038264e+01 0.000000e+00 60s 84777 3.0002095e+00 3.046309e+02 0.000000e+00 65s 87045 3.0002124e+00 7.239440e+01 0.000000e+00 70s 89313 3.0002150e+00 4.703149e+01 0.000000e+00 75s 91743 3.0002187e+00 4.952344e+02 0.000000e+00 80s 93849 3.0002205e+00 7.956989e+01 0.000000e+00 85s 96279 3.0002236e+00 3.977344e+02 0.000000e+00 90s 98547 3.0002263e+00 4.095511e+01 0.000000e+00 95s 100815 3.0002286e+00 8.267327e+00 0.000000e+00 100s 103083 3.0002315e+00 8.426226e+00 0.000000e+00 105s 105189 3.0002344e+00 1.684491e+01 0.000000e+00 110s 107457 3.0002367e+00 1.062752e+01 0.000000e+00 115s 109563 3.0002381e+00 8.766605e+00 0.000000e+00 120s 111831 3.0002389e+00 2.361955e+00 0.000000e+00 125s 114099 3.0002392e+00 1.670072e+00 0.000000e+00 130s 114237 3.0000000e+00 0.000000e+00 0.000000e+00 131s Root relaxation: objective 3.000000e+00, 114237 iterations, 130.57 seconds Total elapsed time = 207.37s 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% - 210s Explored 0 nodes (198901 simplex iterations) in 210.30 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%