Build (method = -2) #dp: 423 Step-3' Graph: 83 vertices and 242 arcs (0.00s) Step-4' Graph: 28 vertices and 132 arcs (0.00s) #V4/#V3 = 0.34 #A4/#A3 = 0.55 Ready! (0.00s) Optimize a model with 64 rows, 133 columns and 347 nonzeros Presolve removed 28 rows and 34 columns Presolve time: 0.00s Presolved: 36 rows, 99 columns, 246 nonzeros Variable types: 0 continuous, 99 integer (0 binary) Found heuristic solution: objective 3715.0000000 Found heuristic solution: objective 2900.0000000 Optimize a model with 36 rows, 99 columns and 246 nonzeros Presolved: 36 rows, 99 columns, 246 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.210e+02 Factor NZ : 3.700e+02 Factor Ops : 4.438e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.42667418e+04 -1.87106785e+04 3.16e+04 2.22e-16 6.47e+02 0s 1 5.07346998e+03 -5.32188471e+03 2.88e+03 5.55e-16 8.38e+01 0s 2 3.38581521e+03 9.96174392e+02 4.64e+01 7.77e-16 1.17e+01 0s 3 2.77463945e+03 2.43759847e+03 4.80e-01 3.33e-16 1.61e+00 0s 4 2.60391313e+03 2.52505279e+03 5.31e-02 3.33e-16 3.77e-01 0s 5 2.58647548e+03 2.57391463e+03 1.45e-02 3.33e-16 6.01e-02 0s 6 2.58327700e+03 2.58206436e+03 1.44e-03 2.22e-16 5.80e-03 0s 7 2.58300019e+03 2.58299953e+03 5.99e-07 2.56e-16 3.14e-06 0s 8 2.58300000e+03 2.58300000e+03 9.66e-13 3.33e-16 3.14e-09 0s 9 2.58300000e+03 2.58300000e+03 1.59e-12 2.37e-16 3.19e-15 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.58300000e+03 Root relaxation: objective 2.583000e+03, 46 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 2583.0000000 2583.00000 0.0% - 0s Explored 0 nodes (46 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.583000000000e+03, best bound 2.583000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 2583 Solution: 120 x [1] 155 x [2] 48 x [3] 150 x [4] 137 x [5] 4 x [6] 109 x [6, 36] 132 x [7] 8 x [7, 34] 45 x [8, 32] 109 x [8, 34] 1 x [9, 32] 203 x [10] 74 x [11, 33] 167 x [12, 35] 110 x [13, 31] 103 x [14, 30] 21 x [15, 31] 10 x [15, 32] 54 x [16, 30] 6 x [16, 32] 198 x [17] 43 x [17, 29] 51 x [18, 29] 18 x [19, 29] 120 x [20, 28] 45 x [20, 29] 21 x [21, 26] 139 x [21, 27] 112 x [22, 25] 18 x [22, 26] 3 x [23, 24] 19 x [24] 30 x [24, 27]