Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:46:47 2013 Optimize a model with 55648 rows, 54908 columns and 219188 nonzeros Presolve removed 74 rows and 0 columns Presolve time: 0.25s Presolved: 55574 rows, 54908 columns, 219114 nonzeros Variable types: 54834 continuous, 74 integer (74 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 6879 6.1484975e+04 3.651881e+02 0.000000e+00 5s 7145 6.1503405e+04 0.000000e+00 0.000000e+00 5s Root relaxation: objective 6.150341e+04, 7145 iterations, 5.46 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 61503.4054 0 57 - 61503.4054 - - 5s H 0 0 101726.00000 61503.4054 39.5% - 9s 0 0 78599.0159 0 15 101726.000 78599.0159 22.7% - 18s H 0 0 91277.000000 78599.0159 13.9% - 18s 0 0 83292.7404 0 5 91277.0000 83292.7404 8.75% - 20s H 0 0 89960.821754 83292.7404 7.41% - 20s H 0 0 88419.000000 83292.7404 5.80% - 20s H 0 0 88242.000000 83292.7404 5.61% - 21s 0 0 84106.6114 0 5 88242.0000 84106.6114 4.69% - 21s 0 0 84318.0199 0 3 88242.0000 84318.0199 4.45% - 22s H 0 0 86336.350472 84318.0199 2.34% - 23s H 0 0 86055.981132 84318.0199 2.02% - 23s H 0 0 85626.000000 84318.0199 1.53% - 24s 0 2 84328.2777 0 3 85626.0000 84328.2777 1.52% - 24s H 6 6 84896.818182 84387.0000 0.60% 76.0 24s 7 9 84404.2171 7 2 84896.8182 84387.0213 0.60% 79.1 25s H 8 8 84635.000000 84387.0213 0.29% 69.2 25s H 23 7 84611.222222 84406.8311 0.24% 63.9 26s H 24 7 84537.000000 84407.4878 0.15% 62.0 26s * 28 7 12 84483.000000 84416.2308 0.08% 66.8 26s Cutting planes: Gomory: 1 Implied bound: 72 Explored 36 nodes (19715 simplex iterations) in 26.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.448300000000e+04, best bound 8.448300000000e+04, gap 0.0%