Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:09:44 2013 Optimize a model with 87606 rows, 86676 columns and 346146 nonzeros Presolve removed 93 rows and 0 columns Presolve time: 0.43s Presolved: 87513 rows, 86676 columns, 346053 nonzeros Variable types: 86583 continuous, 93 integer (93 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8667 7.4784894e+04 3.807168e+06 0.000000e+00 5s 10515 7.5616623e+04 1.953952e+03 0.000000e+00 10s 11288 7.5712198e+04 0.000000e+00 0.000000e+00 13s Root relaxation: objective 7.571220e+04, 11288 iterations, 12.81 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 75712.1985 0 70 - 75712.1985 - - 13s H 0 0 141388.00000 75712.1985 46.5% - 20s H 0 0 114226.00000 75712.1985 33.7% - 83s 0 0 97437.0441 0 18 114226.000 97437.0441 14.7% - 103s 0 0 102428.450 0 8 114226.000 102428.450 10.3% - 110s H 0 0 113374.00000 102428.450 9.65% - 110s H 0 0 110652.00000 102428.450 7.43% - 110s 0 0 103040.026 0 5 110652.000 103040.026 6.88% - 112s H 0 0 103487.00000 103040.026 0.43% - 112s 0 2 103042.648 0 5 103487.000 103042.648 0.43% - 114s 2 3 103087.180 2 4 103487.000 103087.180 0.39% 198 115s * 11 7 9 103305.00000 103250.683 0.05% 285 117s Cutting planes: Implied bound: 84 Explored 19 nodes (28710 simplex iterations) in 118.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.033050000000e+05, best bound 1.033016707819e+05, gap 0.0032%