Build (method = -2) #dp: 2340 Step-3' Graph: 110 vertices and 803 arcs (0.01s) Step-4' Graph: 51 vertices and 685 arcs (0.01s) #V4/#V3 = 0.46 #A4/#A3 = 0.85 Ready! (0.01s) Optimize a model with 101 rows, 686 columns and 1962 nonzeros Presolve removed 2 rows and 7 columns Presolve time: 0.01s Presolved: 99 rows, 679 columns, 1948 nonzeros Variable types: 0 continuous, 679 integer (0 binary) Found heuristic solution: objective 4.299999e+07 Optimize a model with 99 rows, 679 columns and 1948 nonzeros Presolved: 99 rows, 679 columns, 1948 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 9.400e+02 Factor NZ : 2.362e+03 Factor Ops : 7.415e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.19989726e+09 -2.32100803e+09 7.45e+09 2.22e-16 1.38e+07 0s 1 2.81452489e+08 -6.58191857e+08 1.01e+09 5.55e-16 2.04e+06 0s 2 7.32954276e+07 -1.99615646e+08 1.07e+08 3.89e-14 3.03e+05 0s 3 4.03063877e+07 -4.65536464e+07 1.23e+07 1.15e-14 6.89e+04 0s 4 2.58940378e+07 -1.52840380e+07 2.40e+06 5.22e-15 3.03e+04 0s 5 2.30085414e+07 1.13532252e+07 9.12e+05 1.11e-15 8.45e+03 0s 6 2.10940355e+07 1.54867931e+07 2.69e+05 6.66e-16 4.02e+03 0s 7 2.04164205e+07 1.87261381e+07 9.19e+04 2.22e-16 1.21e+03 0s 8 2.01755184e+07 1.94644205e+07 3.28e+04 3.33e-16 5.09e+02 0s 9 2.00877724e+07 1.97812299e+07 1.40e+04 3.33e-16 2.19e+02 0s 10 2.00197810e+07 1.99376116e+07 1.80e+03 3.33e-16 5.85e+01 0s 11 2.00043677e+07 1.99910337e+07 1.87e+02 3.33e-16 9.49e+00 0s 12 2.00006151e+07 1.99990596e+07 1.13e+01 3.33e-16 1.11e+00 0s 13 2.00000084e+07 1.99999923e+07 1.12e-01 3.33e-16 1.14e-02 0s 14 2.00000000e+07 2.00000000e+07 2.53e-07 9.73e-10 1.94e-08 0s Barrier solved model in 14 iterations and 0.01 seconds Optimal objective 2.00000000e+07 Warning: Markowitz tolerance tightened to 0.25 Root relaxation: objective 2.000000e+07, 202 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 (202 simplex iterations) in 0.02 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: 0.02 seconds Total run time: 0.04 seconds Objective: 20000000 Solution: 1000000 x [19, 47, 49] 1000000 x [1, 44, 48] 1000000 x [5, 40, 48] 1000000 x [6, 33, 48] 1000000 x [4, 8, 50] 1000000 x [3, 10, 36] 1000000 x [4, 10, 35] 1000000 x [12, 16, 22] 1000000 x [11, 20, 26] 1000000 x [13, 21, 23] 1000000 x [13, 18, 25] 1000000 x [9, 30, 31] 1000000 x [14, 17, 29] 1000000 x [2, 42, 48] 1000000 x [7, 38, 46] 1000000 x [15, 32, 46] 1000000 x [12, 37, 45] 1000000 x [24, 28, 45] 1000000 x [12, 41, 43] 1000000 x [27, 34, 39]