Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:31:36 2013 Optimize a model with 197540 rows, 196140 columns and 784140 nonzeros Presolve removed 12631 rows and 0 columns Presolve time: 1.93s Presolved: 184909 rows, 196140 columns, 758878 nonzeros Variable types: 196000 continuous, 140 integer (140 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19768 1.2879362e+05 3.461633e+05 0.000000e+00 5s 29631 1.6519018e+05 5.533968e+04 0.000000e+00 10s 38683 2.0048910e+05 5.581511e+03 0.000000e+00 15s 43678 2.0302051e+05 1.258204e+03 0.000000e+00 20s 45211 2.0325675e+05 0.000000e+00 0.000000e+00 22s Root relaxation: objective 2.032568e+05, 45211 iterations, 22.44 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 203256.750 0 3 - 203256.750 - - 25s H 0 0 208703.00000 203256.750 2.61% - 25s 0 0 203257.301 0 4 208703.000 203257.301 2.61% - 27s 0 0 203257.599 0 4 208703.000 203257.599 2.61% - 29s H 0 0 207686.92713 203257.599 2.13% - 34s H 0 0 205822.28662 203257.599 1.25% - 34s 0 0 203257.599 0 3 205822.287 203257.599 1.25% - 57s 0 0 203257.622 0 4 205822.287 203257.622 1.25% - 58s H 0 0 205563.00000 203257.622 1.12% - 65s 0 2 203264.428 0 4 205563.000 203264.428 1.12% - 65s H 2 2 204410.71765 203388.882 0.50% 362 67s H 3 3 204223.70909 203398.918 0.40% 263 67s H 5 5 204075.77128 203398.918 0.33% 266 68s 7 8 203580.286 6 1 204075.771 203398.918 0.33% 372 70s H 12 9 203796.50000 203398.918 0.20% 260 71s * 19 9 18 203781.00000 203398.918 0.19% 211 73s 21 11 203648.569 2 2 203781.000 203409.244 0.18% 245 75s * 33 1 5 203474.00000 203465.101 0.00% 242 78s Cutting planes: Gomory: 1 Flow cover: 1 Explored 34 nodes (75398 simplex iterations) in 78.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.034740000000e+05, best bound 2.034651014033e+05, gap 0.0044%