Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:35:38 2013 Optimize a model with 63358 rows, 62568 columns and 249798 nonzeros Presolve removed 79 rows and 0 columns Presolve time: 0.29s Presolved: 63279 rows, 62568 columns, 249719 nonzeros Variable types: 62489 continuous, 79 integer (79 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7469 6.8446788e+04 8.956613e+02 0.000000e+00 5s 8525 6.8661907e+04 0.000000e+00 0.000000e+00 7s Root relaxation: objective 6.866191e+04, 8525 iterations, 7.40 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 68661.9072 0 57 - 68661.9072 - - 8s H 0 0 107350.00000 68661.9072 36.0% - 12s 0 0 86525.5553 0 20 107350.000 86525.5553 19.4% - 24s H 0 0 101965.00000 86525.5553 15.1% - 26s 0 0 89571.0238 0 6 101965.000 89571.0238 12.2% - 29s H 0 0 98951.629362 89571.0238 9.48% - 29s H 0 0 97155.000000 89571.0238 7.81% - 29s 0 0 90004.1405 0 6 97155.0000 90004.1405 7.36% - 30s H 0 0 95094.000000 90004.1405 5.35% - 30s H 0 0 90341.000000 90004.1405 0.37% - 30s 0 0 90110.1896 0 3 90341.0000 90110.1896 0.26% - 31s 0 2 90110.6749 0 3 90341.0000 90110.6749 0.25% - 33s 11 4 90321.4138 5 1 90341.0000 90248.5303 0.10% 274 35s * 12 1 6 90325.000000 90248.5303 0.08% 257 35s Cutting planes: Implied bound: 72 Explored 14 nodes (22947 simplex iterations) in 35.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.032500000000e+04, best bound 9.032500000000e+04, gap 0.0%