Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:47:11 2013 Optimize a model with 64960 rows, 64160 columns and 256160 nonzeros Presolve removed 80 rows and 0 columns Presolve time: 0.30s Presolved: 64880 rows, 64160 columns, 256080 nonzeros Variable types: 64080 continuous, 80 integer (80 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7264 6.9034306e+04 6.925356e+04 0.000000e+00 5s 9251 6.9955112e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 6.995511e+04, 9251 iterations, 9.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 69955.1121 0 63 - 69955.1121 - - 9s H 0 0 124750.00000 69955.1121 43.9% - 15s 0 0 96037.3074 0 13 124750.000 96037.3074 23.0% - 27s H 0 0 124003.53212 96037.3074 22.6% - 27s H 0 0 111451.00000 96037.3074 13.8% - 28s 0 0 99814.8755 0 12 111451.000 99814.8755 10.4% - 32s 0 0 100926.705 0 4 111451.000 100926.705 9.44% - 33s H 0 0 103202.03841 100926.705 2.20% - 33s H 0 0 102209.00000 100926.705 1.25% - 33s H 0 0 101398.00000 100926.705 0.46% - 33s 0 2 100928.405 0 4 101398.000 100928.405 0.46% - 34s 1 3 100970.369 1 2 101398.000 100970.369 0.42% 292 35s H 2 2 101333.00000 100970.369 0.36% 146 35s H 5 5 101260.69231 101006.905 0.25% 272 36s H 7 5 101098.65217 101006.905 0.09% 224 36s H 27 0 101058.00000 101038.238 0.02% 144 38s Cutting planes: Implied bound: 79 Explored 29 nodes (24985 simplex iterations) in 38.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.010580000000e+05, best bound 1.010504736842e+05, gap 0.0074%