Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:18:04 2013 Optimize a model with 101200 rows, 100200 columns and 400200 nonzeros Presolve removed 100 rows and 0 columns Presolve time: 0.52s Presolved: 101100 rows, 100200 columns, 400100 nonzeros Variable types: 100100 continuous, 100 integer (100 binary) Warning: Markowitz tolerance tightened to 0.03125 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 9645 8.3043359e+04 4.726262e+04 0.000000e+00 5s 11256 8.4952273e+04 9.424539e+05 0.000000e+00 10s 12867 8.6100117e+04 1.825280e+04 0.000000e+00 15s 14299 8.6633883e+04 1.202923e+04 0.000000e+00 20s 15276 8.6732821e+04 0.000000e+00 0.000000e+00 24s Root relaxation: objective 8.673282e+04, 15276 iterations, 24.05 seconds Total elapsed time = 25.18s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 86732.8205 0 77 - 86732.8205 - - 25s H 0 0 182781.00000 86732.8205 52.5% - 39s 0 0 121475.336 0 26 182781.000 121475.336 33.5% - 83s H 0 0 159916.00000 121475.336 24.0% - 86s 0 0 138261.034 0 8 159916.000 138261.034 13.5% - 97s H 0 0 153382.00000 138261.034 9.86% - 97s 0 0 139214.807 0 5 153382.000 139214.807 9.24% - 100s H 0 0 147124.33769 139214.807 5.38% - 100s H 0 0 146199.00000 139214.807 4.78% - 100s H 0 0 139521.00000 139214.807 0.22% - 100s 0 2 139218.707 0 5 139521.000 139218.707 0.22% - 106s * 21 7 7 139483.00000 139355.471 0.09% 166 109s 26 6 139380.138 5 2 139483.000 139380.138 0.07% 140 110s Cutting planes: Implied bound: 100 Explored 41 nodes (41941 simplex iterations) in 111.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.394830000000e+05, best bound 1.394830000000e+05, gap 0.0%