Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:54:59 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 relaxation: objective 6.573372e+04, 7168 iterations, 4.89 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 65733.7201 0 55 - 65733.7201 - - 5s H 0 0 107759.00000 65733.7201 39.0% - 8s 0 0 82425.7254 0 18 107759.000 82425.7254 23.5% - 19s H 0 0 97271.000000 82425.7254 15.3% - 19s 0 0 84242.3835 0 8 97271.0000 84242.3835 13.4% - 21s H 0 0 94738.000000 84242.3835 11.1% - 21s 0 0 84563.4220 0 4 94738.0000 84563.4220 10.7% - 22s H 0 0 88621.201793 84563.4220 4.58% - 22s H 0 0 88273.000000 84563.4220 4.20% - 23s H 0 0 84971.000000 84563.4220 0.48% - 23s 0 0 84577.3307 0 4 84971.0000 84577.3307 0.46% - 23s 0 0 84584.3629 0 2 84971.0000 84584.3629 0.46% - 24s 0 0 84584.3629 0 46 84971.0000 84584.3629 0.46% - 29s 0 0 84584.3629 0 12 84971.0000 84584.3629 0.46% - 37s 0 0 84584.3629 0 6 84971.0000 84584.3629 0.46% - 40s 0 0 84584.3629 0 2 84971.0000 84584.3629 0.46% - 41s 0 2 84585.2436 0 2 84971.0000 84585.2436 0.45% - 43s H 10 6 84908.278689 84683.4716 0.26% 198 44s H 11 6 84889.704819 84683.4716 0.24% 195 44s * 12 6 11 84883.000000 84683.4716 0.24% 185 44s 14 6 84776.5952 1 1 84883.0000 84723.0779 0.19% 207 45s Cutting planes: Gomory: 1 Implied bound: 56 Explored 25 nodes (33624 simplex iterations) in 46.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.488300000000e+04, best bound 8.487612837838e+04, gap 0.0081%