Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:48:30 2012 Optimize a model with 64694 rows, 51756 columns and 244704 nonzeros Presolve removed 927 rows and 3861 columns Presolve time: 4.77s Presolved: 63767 rows, 47895 columns, 238013 nonzeros Variable types: 0 continuous, 47895 integer (47895 binary) Found heuristic solution: objective 227.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 30848 3.0000929e+00 2.187097e+01 0.000000e+00 5s 34644 3.0000953e+00 5.854896e+01 0.000000e+00 10s 37710 3.0000977e+00 1.944881e+01 0.000000e+00 15s 40776 3.0001002e+00 1.587786e+01 0.000000e+00 20s 43842 3.0001027e+00 1.365781e+01 0.000000e+00 25s 47346 3.0001062e+00 2.601244e+01 0.000000e+00 30s 50412 3.0001085e+00 5.277202e+01 0.000000e+00 35s 53770 3.0001116e+00 3.080320e+01 0.000000e+00 40s 56110 3.0000000e+00 0.000000e+00 0.000000e+00 43s Root relaxation: objective 3.000000e+00, 56110 iterations, 43.07 seconds Total elapsed time = 103.67s Total elapsed time = 114.56s Total elapsed time = 132.43s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 134s Explored 0 nodes (181075 simplex iterations) in 134.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%