Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:09:03 2013 Optimize a model with 68224 rows, 67404 columns and 269124 nonzeros Presolve removed 82 rows and 0 columns Presolve time: 0.31s Presolved: 68142 rows, 67404 columns, 269042 nonzeros Variable types: 67322 continuous, 82 integer (82 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7301 6.8114106e+04 1.103071e+05 0.000000e+00 5s 8589 6.8570619e+04 0.000000e+00 0.000000e+00 8s Root relaxation: objective 6.857062e+04, 8589 iterations, 7.91 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 68570.6189 0 64 - 68570.6189 - - 8s H 0 0 122779.00000 68570.6189 44.2% - 14s 0 0 91206.6105 0 18 122779.000 91206.6105 25.7% - 29s H 0 0 115226.00000 91206.6105 20.8% - 30s H 0 0 112850.00000 91206.6105 19.2% - 31s 0 0 96270.8563 0 7 112850.000 96270.8563 14.7% - 35s H 0 0 109919.20017 96270.8563 12.4% - 35s H 0 0 105158.00000 96270.8563 8.45% - 35s 0 0 96685.2632 0 7 105158.000 96685.2632 8.06% - 36s 0 0 96960.5243 0 6 105158.000 96960.5243 7.80% - 36s H 0 0 104125.27488 96960.5243 6.88% - 36s H 0 0 103511.00000 96960.5243 6.33% - 36s H 0 0 98532.000000 96960.5243 1.59% - 37s 0 2 96976.0125 0 6 98532.0000 96976.0125 1.58% - 39s 4 6 97344.0986 3 5 98532.0000 97170.4077 1.38% 526 40s H 11 10 97780.857143 97170.4077 0.62% 289 41s H 13 12 97675.000000 97170.4077 0.52% 257 41s * 28 16 24 97622.000000 97170.4077 0.46% 194 43s 34 22 97422.0426 5 2 97622.0000 97301.9020 0.33% 230 45s * 38 18 8 97494.000000 97301.9020 0.20% 228 45s Cutting planes: Implied bound: 81 Explored 86 nodes (35246 simplex iterations) in 48.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.749400000000e+04, best bound 9.748647058824e+04, gap 0.0077%