Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:36:03 2013 Optimize a model with 78496 rows, 77616 columns and 309936 nonzeros Presolve removed 88 rows and 0 columns Presolve time: 0.37s Presolved: 78408 rows, 77616 columns, 309848 nonzeros Variable types: 77528 continuous, 88 integer (88 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8929 7.4031052e+04 8.533940e+04 0.000000e+00 5s 10849 7.4805164e+04 2.287365e+02 0.000000e+00 10s 10975 7.4809738e+04 0.000000e+00 0.000000e+00 11s Root relaxation: objective 7.480974e+04, 10975 iterations, 10.51 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 74809.7375 0 71 - 74809.7375 - - 11s H 0 0 148977.00000 74809.7375 49.8% - 15s 0 0 104354.092 0 15 148977.000 104354.092 30.0% - 34s H 0 0 126472.54345 104354.092 17.5% - 34s H 0 0 113649.00000 104354.092 8.18% - 34s H 0 0 112750.00000 104354.092 7.45% - 35s 0 0 106472.238 0 6 112750.000 106472.238 5.57% - 37s H 0 0 110424.00000 106472.238 3.58% - 37s 0 0 106576.189 0 6 110424.000 106576.189 3.48% - 38s H 0 0 108360.00000 106576.189 1.65% - 38s 0 0 106579.090 0 4 108360.000 106579.090 1.64% - 39s H 0 0 108354.00000 106579.090 1.64% - 39s H 0 0 107161.00000 106579.090 0.54% - 40s 0 2 106592.599 0 4 107161.000 106592.599 0.53% - 43s 5 6 106729.556 5 1 107161.000 106690.642 0.44% 198 45s H 9 6 107067.25000 106690.642 0.35% 130 45s * 16 7 16 106860.00000 106690.642 0.16% 194 47s * 42 2 11 106846.00000 106813.778 0.03% 154 50s Cutting planes: Implied bound: 83 Explored 45 nodes (28983 simplex iterations) in 50.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.068460000000e+05, best bound 1.068460000000e+05, gap 0.0%