Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:44:20 2013 Optimize a model with 91295 rows, 90345 columns and 361095 nonzeros Presolve removed 2756 rows and 0 columns Presolve time: 0.66s Presolved: 88539 rows, 90345 columns, 355583 nonzeros Variable types: 90250 continuous, 95 integer (95 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19645 1.1650742e+05 1.398269e+03 0.000000e+00 5s 20064 1.1656111e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.165611e+05, 20064 iterations, 5.34 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 116561.115 0 3 - 116561.115 - - 6s H 0 0 119383.00000 116561.115 2.36% - 6s H 0 0 116664.00000 116561.115 0.09% - 7s 0 0 116561.430 0 4 116664.000 116561.430 0.09% - 7s 0 0 116561.430 0 3 116664.000 116561.430 0.09% - 10s 0 0 116569.479 0 4 116664.000 116569.479 0.08% - 10s 0 0 116627.295 0 1 116664.000 116627.295 0.03% - 11s 0 2 116630.300 0 1 116664.000 116630.300 0.03% - 12s Cutting planes: Gomory: 1 Explored 4 nodes (26303 simplex iterations) in 12.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166640000000e+05, best bound 1.166640000000e+05, gap 0.0%