Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:25:52 2013 Optimize a model with 93312 rows, 92352 columns and 368832 nonzeros Presolve removed 96 rows and 0 columns Presolve time: 0.46s Presolved: 93216 rows, 92352 columns, 368736 nonzeros Variable types: 92256 continuous, 96 integer (96 binary) Warning: Markowitz tolerance tightened to 0.125 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 9400 8.2147304e+04 9.986286e+04 0.000000e+00 5s 10957 8.3780312e+04 3.804632e+05 0.000000e+00 10s 12341 8.4516753e+04 6.082498e+03 0.000000e+00 15s 13552 8.4791158e+04 0.000000e+00 0.000000e+00 19s Root relaxation: objective 8.479116e+04, 13552 iterations, 19.14 seconds Total elapsed time = 20.14s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 84791.1580 0 74 - 84791.1580 - - 20s H 0 0 156417.00000 84791.1580 45.8% - 30s 0 0 108268.472 0 24 156417.000 108268.472 30.8% - 63s H 0 0 141448.00000 108268.472 23.5% - 67s 0 0 118063.871 0 9 141448.000 118063.871 16.5% - 76s H 0 0 141184.00000 118063.871 16.4% - 76s 0 0 120470.344 0 4 141184.000 120470.344 14.7% - 79s H 0 0 124577.88765 120470.344 3.30% - 79s H 0 0 124043.00000 120470.344 2.88% - 79s H 0 0 123213.26013 120470.344 2.23% - 82s H 0 0 121462.84535 120470.344 0.82% - 82s 0 2 120473.668 0 4 121462.845 120473.668 0.81% - 84s H 3 3 121368.00000 120525.822 0.69% 126 85s H 5 5 121349.83333 120525.822 0.68% 116 85s H 6 6 121169.32248 120525.822 0.53% 125 85s H 12 6 120760.00000 120525.822 0.19% 148 87s 23 8 120583.250 2 2 120760.000 120531.085 0.19% 187 90s H 26 8 120680.76923 120531.085 0.12% 173 90s * 27 6 6 120651.00000 120531.085 0.10% 175 90s H 29 3 120629.00000 120531.085 0.08% 163 90s Cutting planes: Implied bound: 96 Explored 37 nodes (38851 simplex iterations) in 91.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.206290000000e+05, best bound 1.206283673469e+05, gap 0.0005%