Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:53:24 2013 Optimize a model with 80278 rows, 79388 columns and 317018 nonzeros Presolve removed 89 rows and 0 columns Presolve time: 0.38s Presolved: 80189 rows, 79388 columns, 316929 nonzeros Variable types: 79299 continuous, 89 integer (89 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8540 7.8625548e+04 2.306252e+04 0.000000e+00 5s 10322 8.0143031e+04 1.600119e+04 0.000000e+00 10s 11696 8.0512354e+04 0.000000e+00 0.000000e+00 14s Root relaxation: objective 8.051235e+04, 11696 iterations, 14.34 seconds Total elapsed time = 15.18s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 80512.3541 0 73 - 80512.3541 - - 15s H 0 0 174811.00000 80512.3541 53.9% - 22s 0 0 110161.034 0 18 174811.000 110161.034 37.0% - 40s H 0 0 159793.64265 110161.034 31.1% - 40s H 0 0 134634.00000 110161.034 18.2% - 41s 0 0 121344.758 0 4 134634.000 121344.758 9.87% - 46s H 0 0 131865.00000 121344.758 7.98% - 46s 0 0 122090.700 0 1 131865.000 122090.700 7.41% - 48s H 0 0 123926.80000 122090.700 1.48% - 48s H 0 0 123628.00000 122090.700 1.24% - 48s H 0 0 123110.00000 122090.700 0.83% - 49s 0 2 122100.444 0 1 123110.000 122100.444 0.82% - 51s H 8 5 122828.31818 122216.075 0.50% 157 53s H 10 6 122742.81818 122216.075 0.43% 144 53s H 15 8 122605.50000 122216.075 0.32% 130 54s 19 10 122386.473 18 1 122605.500 122216.075 0.32% 131 55s * 24 7 23 122416.00000 122216.075 0.16% 116 55s * 26 6 6 122396.00000 122252.818 0.12% 113 55s Cutting planes: Implied bound: 88 Explored 35 nodes (30170 simplex iterations) in 57.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.223960000000e+05, best bound 1.223864647887e+05, gap 0.0078%