Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:59:58 2013 Optimize a model with 74992 rows, 74132 columns and 296012 nonzeros Presolve removed 86 rows and 0 columns Presolve time: 0.35s Presolved: 74906 rows, 74132 columns, 295926 nonzeros Variable types: 74046 continuous, 86 integer (86 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8056 7.2053869e+04 2.589251e+04 0.000000e+00 5s 9854 7.2749205e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.274920e+04, 9854 iterations, 9.20 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 72749.2048 0 58 - 72749.2048 - - 9s H 0 0 124560.00000 72749.2048 41.6% - 15s H 0 0 109346.00000 72749.2048 33.5% - 50s 0 0 91177.0298 0 18 109346.000 91177.0298 16.6% - 64s 0 0 98583.8257 0 8 109346.000 98583.8257 9.84% - 68s 0 0 100520.823 0 6 109346.000 100520.823 8.07% - 69s H 0 0 105559.46152 100520.823 4.77% - 70s H 0 0 105173.00000 100520.823 4.42% - 70s 0 0 100592.702 0 2 105173.000 100592.702 4.36% - 70s 0 0 100625.910 0 2 105173.000 100625.910 4.32% - 71s 0 0 100627.326 0 2 105173.000 100627.326 4.32% - 71s H 0 0 104659.33816 100627.326 3.85% - 71s H 0 0 104364.00000 100627.326 3.58% - 71s 0 2 100631.935 0 2 104364.000 100631.935 3.58% - 72s H 1 1 104054.06360 100631.935 3.29% 0.0 73s H 2 2 101181.04348 100689.935 0.49% 252 73s H 5 5 101110.33333 100784.833 0.32% 213 74s H 6 5 100927.95349 100794.698 0.13% 209 74s H 7 3 100914.16667 100801.459 0.11% 200 74s * 8 2 7 100847.00000 100801.459 0.05% 188 74s 11 2 100811.870 5 1 100847.000 100811.870 0.03% 184 75s Cutting planes: Implied bound: 83 Explored 14 nodes (24410 simplex iterations) in 75.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.008470000000e+05, best bound 1.008470000000e+05, gap 0.0%