Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:16:29 2013 Optimize a model with 69886 rows, 69056 columns and 275726 nonzeros Presolve removed 83 rows and 0 columns Presolve time: 0.32s Presolved: 69803 rows, 69056 columns, 275643 nonzeros Variable types: 68973 continuous, 83 integer (83 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7591 7.2155664e+04 3.920066e+03 0.000000e+00 5s 9057 7.2787431e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.278743e+04, 9057 iterations, 8.67 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 72787.4308 0 66 - 72787.4308 - - 9s H 0 0 128014.00000 72787.4308 43.1% - 13s 0 0 99545.1880 0 12 128014.000 99545.1880 22.2% - 27s H 0 0 121910.34739 99545.1880 18.3% - 27s H 0 0 112748.00000 99545.1880 11.7% - 27s 0 0 104922.445 0 7 112748.000 104922.445 6.94% - 30s 0 0 105289.029 0 11 112748.000 105289.029 6.62% - 31s H 0 0 112200.00000 105289.029 6.16% - 31s 0 0 105616.465 0 4 112200.000 105616.465 5.87% - 32s H 0 0 111879.00000 105616.465 5.60% - 32s 0 0 105694.796 0 3 111879.000 105694.796 5.53% - 33s H 0 0 111419.00000 105694.796 5.14% - 33s H 0 0 109831.56618 105694.796 3.77% - 35s H 0 0 106403.00000 105694.796 0.67% - 35s 0 2 105753.355 0 2 106403.000 105753.355 0.61% - 37s 10 10 106047.405 7 1 106403.000 105973.959 0.40% 172 40s * 23 10 20 106349.00000 105973.959 0.35% 136 41s H 27 8 106288.00000 105974.455 0.29% 120 41s H 33 13 106275.00000 105974.455 0.28% 128 42s H 34 14 106115.00000 105974.455 0.13% 128 42s H 36 14 106113.73684 105974.455 0.13% 124 42s H 37 14 106108.05000 105974.455 0.13% 122 42s * 38 10 13 106088.00000 105974.455 0.11% 120 42s Cutting planes: Gomory: 1 Implied bound: 82 Explored 57 nodes (28888 simplex iterations) in 44.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.060880000000e+05, best bound 1.060880000000e+05, gap 0.0%