Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:06:49 2013 Optimize a model with 58672 rows, 57912 columns and 231192 nonzeros Presolve removed 76 rows and 0 columns Presolve time: 0.27s Presolved: 58596 rows, 57912 columns, 231116 nonzeros Variable types: 57836 continuous, 76 integer (76 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 6860 6.2326771e+04 1.956976e+02 0.000000e+00 5s 7153 6.2349013e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 6.234901e+04, 7153 iterations, 5.76 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 62349.0135 0 63 - 62349.0135 - - 6s H 0 0 98338.000000 62349.0135 36.6% - 9s 0 0 78656.5821 0 14 98338.0000 78656.5821 20.0% - 18s H 0 0 92752.000000 78656.5821 15.2% - 19s 0 0 82354.4293 0 7 92752.0000 82354.4293 11.2% - 21s H 0 0 88736.000000 82354.4293 7.19% - 21s 0 0 82964.8108 0 5 88736.0000 82964.8108 6.50% - 21s 0 0 83167.2371 0 4 88736.0000 83167.2371 6.28% - 22s H 0 0 87762.000000 83167.2371 5.24% - 22s 0 0 83303.6363 0 3 87762.0000 83303.6363 5.08% - 23s H 0 0 85818.879416 83303.6363 2.93% - 23s H 0 0 85382.000000 83303.6363 2.43% - 23s H 0 0 83944.000000 83303.6363 0.76% - 23s 0 2 83306.0767 0 3 83944.0000 83306.0767 0.76% - 24s 2 4 83483.4667 1 4 83944.0000 83372.0408 0.68% 300 25s H 5 5 83937.000000 83372.0408 0.67% 150 25s H 13 9 83713.000000 83372.0408 0.41% 103 26s H 42 5 83710.103226 83487.7920 0.27% 100 27s H 43 6 83702.111111 83507.4444 0.23% 100 27s H 44 6 83591.941176 83511.2222 0.10% 98.1 28s * 45 3 9 83531.000000 83512.7874 0.02% 97.5 28s Cutting planes: Implied bound: 76 Explored 54 nodes (22674 simplex iterations) in 28.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.353100000000e+04, best bound 8.353100000000e+04, gap 0.0%