Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:42:45 2013 Optimize a model with 91295 rows, 90345 columns and 361095 nonzeros Presolve removed 6490 rows and 0 columns Presolve time: 0.63s Presolved: 84805 rows, 90345 columns, 348115 nonzeros Variable types: 90250 continuous, 95 integer (95 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 18705 1.2207127e+05 3.620374e+00 0.000000e+00 5s 18728 1.2207127e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.220713e+05, 18728 iterations, 5.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 122071.272 0 5 - 122071.272 - - 5s H 0 0 128243.00000 122071.272 4.81% - 6s 0 0 122074.747 0 6 128243.000 122074.747 4.81% - 7s H 0 0 126776.00000 122074.747 3.71% - 7s 0 0 122075.850 0 7 126776.000 122075.850 3.71% - 7s H 0 0 126541.00000 122075.850 3.53% - 8s 0 0 122075.850 0 7 126541.000 122075.850 3.53% - 8s H 0 0 124085.09259 122075.850 1.62% - 12s 0 0 122075.850 0 5 124085.093 122075.850 1.62% - 19s 0 0 122075.867 0 8 124085.093 122075.867 1.62% - 20s 0 0 122075.867 0 8 124085.093 122075.867 1.62% - 20s 0 0 122075.867 0 8 124085.093 122075.867 1.62% - 21s 0 2 122076.954 0 8 124085.093 122076.954 1.62% - 26s H 4 4 123928.00000 122188.694 1.40% 120 27s H 5 5 122815.65517 122188.694 0.51% 120 27s 19 13 122511.258 19 2 122815.655 122188.694 0.51% 125 30s H 20 10 122573.40000 122188.694 0.31% 119 30s * 23 12 22 122562.00000 122188.694 0.30% 109 30s * 33 10 8 122458.00000 122207.226 0.20% 118 31s * 54 13 15 122389.00000 122230.053 0.13% 103 33s Cutting planes: Gomory: 4 Flow cover: 5 Explored 73 nodes (37685 simplex iterations) in 34.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.223890000000e+05, best bound 1.223872453304e+05, gap 0.0014%