Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:25:53 2013 Optimize a model with 61776 rows, 60996 columns and 243516 nonzeros Presolve removed 78 rows and 0 columns Presolve time: 0.28s Presolved: 61698 rows, 60996 columns, 243438 nonzeros Variable types: 60918 continuous, 78 integer (78 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7814 6.7983796e+04 3.490020e+03 0.000000e+00 5s 8390 6.8088667e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 6.808867e+04, 8390 iterations, 6.27 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 68088.6669 0 55 - 68088.6669 - - 6s H 0 0 108698.00000 68088.6669 37.4% - 9s 0 0 85248.0302 0 20 108698.000 85248.0302 21.6% - 19s H 0 0 99070.000000 85248.0302 14.0% - 20s 0 0 89135.2097 0 10 99070.0000 89135.2097 10.0% - 22s H 0 0 97471.000000 89135.2097 8.55% - 23s H 0 0 96460.000000 89135.2097 7.59% - 23s 0 0 89652.6071 0 5 96460.0000 89652.6071 7.06% - 25s 0 0 89809.2955 0 3 96460.0000 89809.2955 6.89% - 25s H 0 0 93659.136841 89809.2955 4.11% - 25s H 0 0 92546.000000 89809.2955 2.96% - 26s H 0 0 90720.272727 89809.2955 1.00% - 27s H 0 0 90469.000000 89809.2955 0.73% - 27s 0 2 89809.3683 0 3 90469.0000 89809.3683 0.73% - 27s H 4 3 90104.000000 89993.1395 0.12% 505 29s H 5 3 90098.200000 89993.1395 0.12% 471 29s H 6 4 90083.579710 89993.1395 0.10% 394 29s * 7 3 6 90066.000000 89993.1395 0.08% 349 29s Cutting planes: Implied bound: 78 Explored 11 nodes (22244 simplex iterations) in 29.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.006600000000e+04, best bound 9.006600000000e+04, gap 0.0%