Gurobi 5.0.1 (linux64) logging started Wed Apr 24 09:03:52 2013 Optimize a model with 97216 rows, 96236 columns and 384356 nonzeros Presolve removed 98 rows and 0 columns Presolve time: 0.48s Presolved: 97118 rows, 96236 columns, 384258 nonzeros Variable types: 96138 continuous, 98 integer (98 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 9246 8.2609715e+04 1.027905e+05 0.000000e+00 5s 11006 8.4466430e+04 2.413602e+05 0.000000e+00 10s Warning: Markowitz tolerance tightened to 0.03125 12590 8.5336355e+04 1.078541e+04 0.000000e+00 16s 13822 8.5662052e+04 3.116415e+04 0.000000e+00 20s 14488 8.5737158e+04 0.000000e+00 0.000000e+00 23s Root relaxation: objective 8.573716e+04, 14488 iterations, 22.95 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 85737.1579 0 75 - 85737.1579 - - 24s H 0 0 175373.00000 85737.1579 51.1% - 39s 0 0 120740.863 0 27 175373.000 120740.863 31.2% - 82s H 0 0 159286.00000 120740.863 24.2% - 88s 0 0 135286.909 0 12 159286.000 135286.909 15.1% - 102s H 0 0 159243.00000 135286.909 15.0% - 102s 0 0 137457.917 0 4 159243.000 137457.917 13.7% - 104s H 0 0 146172.39882 137457.917 5.96% - 104s H 0 0 145000.00000 137457.917 5.20% - 104s H 0 0 140043.00000 137457.917 1.85% - 105s H 0 0 138037.00000 137457.917 0.42% - 107s 0 2 137468.358 0 4 138037.000 137468.358 0.41% - 107s H 7 6 137967.07241 137601.354 0.27% 186 109s 7 7 137662.089 7 2 137967.072 137601.354 0.27% 217 110s H 8 6 137918.60000 137601.354 0.23% 190 110s * 9 5 9 137763.00000 137601.354 0.12% 228 110s * 14 2 3 137713.00000 137682.725 0.02% 214 111s Cutting planes: Implied bound: 98 Explored 21 nodes (42623 simplex iterations) in 112.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.377130000000e+05, best bound 1.377130000000e+05, gap 0.0%