Build (method = -2) #dp: 1009 Step-3' Graph: 81 vertices and 473 arcs (0.00s) Step-4' Graph: 53 vertices and 417 arcs (0.00s) #V4/#V3 = 0.65 #A4/#A3 = 0.88 Ready! (0.00s) Optimize a model with 91 rows, 418 columns and 1155 nonzeros Presolve removed 22 rows and 29 columns Presolve time: 0.00s Presolved: 69 rows, 389 columns, 1081 nonzeros Variable types: 0 continuous, 389 integer (8 binary) Found heuristic solution: objective 337.0000000 Found heuristic solution: objective 322.0000000 Optimize a model with 69 rows, 389 columns and 1081 nonzeros Presolved: 69 rows, 389 columns, 1081 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.740e+02 Factor NZ : 1.515e+03 Factor Ops : 3.919e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.33966877e+03 -8.61324308e+03 1.71e+04 1.06e-01 7.72e+01 0s 1 1.03125576e+03 -2.73497862e+03 2.57e+03 5.55e-16 1.30e+01 0s 2 4.09474710e+02 -6.60449379e+02 1.79e+02 1.44e-15 1.75e+00 0s 3 2.95433568e+02 -1.50564599e+01 1.72e+01 7.77e-16 4.11e-01 0s 4 2.34019403e+02 8.30004755e+01 2.58e+00 5.55e-16 1.92e-01 0s 5 2.09073987e+02 1.73175521e+02 5.76e-01 4.16e-16 4.55e-02 0s 6 2.03336850e+02 1.93297232e+02 1.45e-01 4.44e-16 1.27e-02 0s 7 2.02113778e+02 2.01438284e+02 8.33e-03 3.79e-16 8.56e-04 0s 8 2.02000124e+02 2.01999441e+02 1.42e-13 4.44e-16 8.57e-07 0s 9 2.02000000e+02 2.02000000e+02 6.04e-13 5.19e-16 8.57e-13 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.02000000e+02 Root relaxation: objective 2.020000e+02, 146 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 202.0000000 202.00000 0.0% - 0s Explored 0 nodes (146 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.020000000000e+02, best bound 2.020000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 202 Solution: 14 x [12, 26] 3 x [4, 24] 14 x [29, 36] 8 x [31, 33] 18 x [5, 21] 3 x [20, 38] 9 x [20, 33] 7 x [14, 15] 4 x [3, 14] 17 x [13, 18] 3 x [9, 22] 10 x [9, 11] 1 x [9, 38] 6 x [1, 27] 18 x [3, 34] 10 x [10, 30] 2 x [10, 19] 1 x [25, 37] 2 x [25, 35] 1 x [25, 27] 1 x [25, 38] 1 x [17] 6 x [6, 17] 8 x [17, 32] 1 x [16, 23] 2 x [16, 23, 23] 3 x [8] 6 x [8, 38] 2 x [8, 26, 29] 5 x [7] 15 x [2, 28] 1 x [2, 29, 38]