Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:26:45 2013 Optimize a model with 122210 rows, 121110 columns and 484110 nonzeros Presolve removed 5303 rows and 0 columns Presolve time: 0.98s Presolved: 116907 rows, 121110 columns, 473504 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19087 1.3966466e+05 1.173511e+04 0.000000e+00 5s 27857 1.5372691e+05 0.000000e+00 0.000000e+00 10s Root relaxation: objective 1.537269e+05, 27857 iterations, 9.76 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 153726.908 0 3 - 153726.908 - - 11s H 0 0 157305.00000 153726.908 2.27% - 12s 0 0 153727.775 0 4 157305.000 153727.775 2.27% - 13s 0 0 153729.183 0 4 157305.000 153729.183 2.27% - 14s 0 0 153729.189 0 4 157305.000 153729.189 2.27% - 15s H 0 0 154415.00000 153729.189 0.44% - 19s 0 0 153729.189 0 3 154415.000 153729.189 0.44% - 28s 0 0 153729.202 0 4 154415.000 153729.202 0.44% - 29s 0 2 153729.854 0 4 154415.000 153729.854 0.44% - 35s 21 14 154108.143 20 1 154415.000 153825.620 0.38% 194 40s H 23 10 154209.00000 153825.620 0.25% 184 40s * 28 9 27 154152.00000 153825.620 0.21% 167 40s 51 13 154037.850 5 2 154152.000 153961.682 0.12% 199 45s * 71 5 10 154131.00000 154023.761 0.07% 214 48s Cutting planes: Gomory: 2 Explored 76 nodes (58475 simplex iterations) in 48.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.541310000000e+05, best bound 1.541164285714e+05, gap 0.0095%