Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:44:23 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 7622 7.0230284e+04 1.742197e+04 0.000000e+00 5s 9429 7.0946477e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.094648e+04, 9429 iterations, 9.16 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 70946.4769 0 65 - 70946.4769 - - 9s H 0 0 118591.00000 70946.4769 40.2% - 15s 0 0 89548.2975 0 23 118591.000 89548.2975 24.5% - 31s H 0 0 108554.00000 89548.2975 17.5% - 34s 0 0 96142.6490 0 4 108554.000 96142.6490 11.4% - 38s H 0 0 103310.58437 96142.6490 6.94% - 38s H 0 0 102442.00000 96142.6490 6.15% - 38s 0 0 97370.0641 0 3 102442.000 97370.0641 4.95% - 39s H 0 0 101957.00000 97370.0641 4.50% - 39s H 0 0 99507.000000 97370.0641 2.15% - 40s 0 2 97379.2718 0 3 99507.0000 97379.2718 2.14% - 40s H 3 3 99091.601695 97470.0254 1.64% 175 41s H 4 4 98890.250000 97486.7098 1.42% 168 41s H 7 7 98599.622222 97486.7098 1.13% 171 41s H 8 8 98544.875000 97486.7098 1.07% 158 41s H 9 9 98258.299026 97486.7098 0.79% 154 42s H 18 10 97875.000000 97486.7098 0.40% 124 43s H 21 13 97830.000000 97486.7098 0.35% 109 43s * 38 15 8 97728.000000 97547.1855 0.19% 101 44s 42 10 97658.8939 2 4 97728.0000 97631.7121 0.10% 119 45s * 46 7 6 97673.000000 97631.7121 0.04% 112 45s Cutting planes: Implied bound: 80 Explored 56 nodes (27573 simplex iterations) in 45.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.767300000000e+04, best bound 9.766440000000e+04, gap 0.0088%