Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:41:33 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 7526 6.8966421e+04 5.320247e+04 0.000000e+00 5s 9235 6.9652811e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 6.965281e+04, 9235 iterations, 8.76 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 69652.8107 0 67 - 69652.8107 - - 9s H 0 0 130425.00000 69652.8107 46.6% - 16s 0 0 89321.3209 0 10 130425.000 89321.3209 31.5% - 28s H 0 0 115379.91003 89321.3209 22.6% - 28s H 0 0 106955.00000 89321.3209 16.5% - 29s 0 0 95356.4223 0 4 106955.000 95356.4223 10.8% - 32s H 0 0 106620.69369 95356.4223 10.6% - 32s H 0 0 100782.00000 95356.4223 5.38% - 32s H 0 0 98584.000000 95356.4223 3.27% - 32s 0 0 95779.0205 0 4 98584.0000 95779.0205 2.85% - 32s 0 0 95908.1909 0 4 98584.0000 95908.1909 2.71% - 33s 0 2 95908.1998 0 4 98584.0000 95908.1998 2.71% - 34s 1 3 95943.5937 1 4 98584.0000 95943.5937 2.68% 221 35s H 4 4 96284.243902 95964.8131 0.33% 180 35s H 7 6 96274.348837 96031.7500 0.25% 218 36s H 8 4 96104.291667 96057.4054 0.05% 203 36s * 10 3 9 96092.000000 96057.4054 0.04% 172 36s Cutting planes: Implied bound: 79 Explored 14 nodes (22951 simplex iterations) in 36.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.609200000000e+04, best bound 9.609200000000e+04, gap 0.0%