Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:56:23 2013 Optimize a model with 57150 rows, 56400 columns and 225150 nonzeros Presolve removed 75 rows and 0 columns Presolve time: 0.26s Presolved: 57075 rows, 56400 columns, 225075 nonzeros Variable types: 56325 continuous, 75 integer (75 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8097 7.0011029e+04 4.186602e+03 0.000000e+00 5s 10182 7.1056861e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.105686e+04, 10182 iterations, 9.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 71056.8609 0 61 - 71056.8609 - - 9s H 0 0 128896.00000 71056.8609 44.9% - 15s 0 0 98845.7666 0 14 128896.000 98845.7666 23.3% - 25s H 0 0 122369.59833 98845.7666 19.2% - 25s H 0 0 109810.00000 98845.7666 10.0% - 25s 0 0 102196.093 0 9 109810.000 102196.093 6.93% - 27s H 0 0 109771.35764 102196.093 6.90% - 28s H 0 0 107287.00000 102196.093 4.75% - 28s 0 0 102525.305 0 7 107287.000 102525.305 4.44% - 29s H 0 0 105594.00000 102525.305 2.91% - 29s 0 0 102605.817 0 3 105594.000 102605.817 2.83% - 29s H 0 0 102716.00000 102605.817 0.11% - 29s 0 2 102610.821 0 3 102716.000 102610.821 0.10% - 30s H 4 3 102706.80000 102650.000 0.06% 190 31s * 6 2 5 102680.00000 102665.974 0.01% 172 31s Cutting planes: Implied bound: 74 Explored 9 nodes (22606 simplex iterations) in 31.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.026800000000e+05, best bound 1.026800000000e+05, gap 0.0%