Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:00:01 2013 Optimize a model with 91390 rows, 90440 columns and 361190 nonzeros Presolve removed 95 rows and 0 columns Presolve time: 0.45s Presolved: 91295 rows, 90440 columns, 361095 nonzeros Variable types: 90345 continuous, 95 integer (95 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8855 7.5080225e+04 1.767151e+04 0.000000e+00 5s Warning: Markowitz tolerance tightened to 0.03125 10565 7.5995976e+04 5.898406e+04 0.000000e+00 10s 11350 7.6108557e+04 0.000000e+00 0.000000e+00 13s Root relaxation: objective 7.610856e+04, 11350 iterations, 12.85 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 76108.5568 0 72 - 76108.5568 - - 13s H 0 0 140489.00000 76108.5568 45.8% - 22s H 0 0 114024.00000 76108.5568 33.3% - 71s 0 0 95895.2234 0 21 114024.000 95895.2234 15.9% - 97s 0 0 103228.821 0 12 114024.000 103228.821 9.47% - 108s 0 0 105260.546 0 5 114024.000 105260.546 7.69% - 111s 0 0 106966.901 0 2 114024.000 106966.901 6.19% - 114s H 0 0 111483.71550 106966.901 4.05% - 114s H 0 0 111211.00000 106966.901 3.82% - 114s 0 2 106970.904 0 2 111211.000 106970.904 3.81% - 116s H 3 3 108896.84451 107139.313 1.61% 436 118s H 6 4 107472.00000 107220.550 0.23% 288 119s 15 11 107290.759 11 1 107472.000 107220.550 0.23% 163 120s * 33 9 29 107373.00000 107220.550 0.14% 119 123s 57 13 107340.975 9 1 107373.000 107261.327 0.10% 102 125s * 91 2 8 107339.00000 107321.071 0.02% 85.4 127s Cutting planes: Implied bound: 94 Explored 93 nodes (38601 simplex iterations) in 127.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.073390000000e+05, best bound 1.073352857143e+05, gap 0.0035%