Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:42:18 2013 Optimize a model with 91295 rows, 90345 columns and 361095 nonzeros Presolve removed 5098 rows and 0 columns Presolve time: 0.68s Presolved: 86197 rows, 90345 columns, 350899 nonzeros Variable types: 90250 continuous, 95 integer (95 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19926 1.4151758e+05 1.753936e+03 0.000000e+00 5s 21838 1.4294288e+05 0.000000e+00 0.000000e+00 6s Root relaxation: objective 1.429429e+05, 21838 iterations, 6.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 142942.884 0 3 - 142942.884 - - 6s H 0 0 144007.00000 142942.884 0.74% - 7s 0 0 142943.269 0 4 144007.000 142943.269 0.74% - 8s 0 0 142943.303 0 4 144007.000 142943.303 0.74% - 8s H 0 0 143246.00000 142943.303 0.21% - 10s 0 0 142943.303 0 3 143246.000 142943.303 0.21% - 17s 0 0 142943.303 0 4 143246.000 142943.303 0.21% - 18s 0 2 142945.115 0 4 143246.000 142945.115 0.21% - 21s H 4 3 143146.27273 143013.253 0.09% 154 21s * 9 3 8 143099.00000 143013.253 0.06% 129 22s Cutting planes: Gomory: 1 Flow cover: 5 Explored 17 nodes (34570 simplex iterations) in 22.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.430990000000e+05, best bound 1.430857741331e+05, gap 0.0092%