Build (method = -2) #dp: 2603 Step-3' Graph: 124 vertices and 917 arcs (0.01s) Step-4' Graph: 56 vertices and 781 arcs (0.01s) #V4/#V3 = 0.45 #A4/#A3 = 0.85 Ready! (0.01s) Optimize a model with 109 rows, 782 columns and 2240 nonzeros Presolve removed 2 rows and 7 columns Presolve time: 0.01s Presolved: 107 rows, 775 columns, 2226 nonzeros Variable types: 0 continuous, 775 integer (0 binary) Found heuristic solution: objective 4.799998e+07 Optimize a model with 107 rows, 775 columns and 2226 nonzeros Presolved: 107 rows, 775 columns, 2226 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.115e+03 Factor NZ : 2.553e+03 Factor Ops : 8.196e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.30553734e+09 -2.68222391e+09 8.36e+09 2.22e-16 1.38e+07 0s 1 3.11540142e+08 -7.11995548e+08 1.18e+09 6.66e-16 2.08e+06 0s 2 7.51209337e+07 -2.44835156e+08 1.20e+08 2.44e-14 3.15e+05 0s 3 4.08532456e+07 -5.60061652e+07 9.34e+06 7.55e-15 6.58e+04 0s 4 2.78327571e+07 -2.11483888e+07 1.62e+06 3.66e-15 3.13e+04 0s 5 2.35959711e+07 2.95740315e+06 6.80e+05 1.33e-15 1.30e+04 0s 6 2.14265825e+07 1.32365463e+07 1.24e+05 7.77e-16 5.13e+03 0s 7 2.08526714e+07 1.67341543e+07 5.97e+04 2.22e-16 2.58e+03 0s 8 2.03962116e+07 1.89580370e+07 1.72e+04 2.22e-16 8.99e+02 0s 9 2.01714568e+07 1.96138019e+07 6.88e+03 2.22e-16 3.49e+02 0s 10 2.00404038e+07 1.98936079e+07 8.11e+02 2.22e-16 9.17e+01 0s 11 2.00080993e+07 1.99674444e+07 4.92e+01 2.22e-16 2.54e+01 0s 12 2.00028958e+07 1.99911483e+07 1.20e+01 2.22e-16 7.33e+00 0s 13 2.00015169e+07 1.99979517e+07 6.14e+00 3.33e-16 2.22e+00 0s 14 2.00005922e+07 1.99995190e+07 2.42e+00 2.22e-16 6.70e-01 0s 15 2.00000151e+07 1.99999563e+07 3.37e-02 2.22e-16 3.67e-02 0s 16 2.00000000e+07 2.00000000e+07 3.90e-06 8.84e-10 1.85e-05 0s Barrier solved model in 16 iterations and 0.01 seconds Optimal objective 2.00000000e+07 Root relaxation: objective 2.000000e+07, 759 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 2.000000e+07 2.0000e+07 0.0% - 0s Explored 0 nodes (759 simplex iterations) in 0.03 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.000000000000e+07, best bound 2.000000000000e+07, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.03 seconds Total run time: 0.05 seconds Objective: 20000000 Solution: 1000000 x [1, 48, 52] 250000 x [8, 43, 51] 750000 x [2, 4, 43] 250000 x [14, 41, 50] 750000 x [2, 8, 41] 875000 x [5, 7, 38] 125000 x [6, 6, 38] 250000 x [3, 12, 21] 250000 x [6, 12, 17] 500000 x [10, 12, 14] 375000 x [3, 25, 31] 250000 x [4, 22, 31] 375000 x [6, 20, 31] 750000 x [5, 22, 30] 250000 x [15, 15, 30] 625000 x [28, 29, 51] 125000 x [7, 20, 29] 250000 x [13, 17, 29] 750000 x [26, 34, 50] 250000 x [15, 21, 26] 375000 x [5, 24, 28] 125000 x [17, 21, 24] 500000 x [18, 20, 24] 750000 x [2, 23, 33] 250000 x [14, 23, 25] 1000000 x [15, 27, 39] 500000 x [19, 36, 51] 500000 x [4, 19, 32] 1000000 x [11, 42, 50] 500000 x [4, 9, 37] 500000 x [9, 13, 35] 625000 x [40, 44, 51] 375000 x [17, 32, 40] 750000 x [2, 16, 45] 250000 x [13, 16, 37] 375000 x [3, 46, 53] 500000 x [18, 36, 53] 125000 x [25, 32, 53] 500000 x [10, 47, 49] 250000 x [25, 37, 49] 125000 x [6, 49, 49] 250000 x [15, 47, 47] 375000 x [21, 44, 46] 250000 x [33, 35, 46] 250000 x [34, 35, 45]