Build (method = -2) #dp: 974 Step-3' Graph: 81 vertices and 468 arcs (0.00s) Step-4' Graph: 48 vertices and 403 arcs (0.00s) #V4/#V3 = 0.59 #A4/#A3 = 0.86 Ready! (0.00s) Optimize a model with 88 rows, 404 columns and 1120 nonzeros Presolve removed 18 rows and 27 columns Presolve time: 0.00s Presolved: 70 rows, 377 columns, 1050 nonzeros Variable types: 0 continuous, 377 integer (0 binary) Found heuristic solution: objective 355.0000000 Optimize a model with 70 rows, 377 columns and 1050 nonzeros Presolved: 70 rows, 377 columns, 1050 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.400e+02 Factor NZ : 1.480e+03 Factor Ops : 3.625e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.40820152e+03 -1.28212815e+04 2.28e+04 2.22e-16 1.41e+02 0s 1 1.36832653e+03 -4.26645061e+03 3.48e+03 8.88e-16 2.36e+01 0s 2 4.29656260e+02 -1.40716089e+03 1.81e+02 7.11e-15 3.04e+00 0s 3 3.26498515e+02 -2.61017302e+02 5.92e-01 1.78e-15 7.56e-01 0s 4 2.65711621e+02 -1.63350871e+01 1.29e-01 9.99e-16 3.63e-01 0s 5 2.30674330e+02 1.06955075e+02 3.09e-02 4.82e-16 1.59e-01 0s 6 2.12545678e+02 1.82581319e+02 6.24e-03 5.34e-16 3.85e-02 0s 7 2.08539886e+02 2.06729197e+02 1.14e-03 4.23e-16 2.33e-03 0s 8 2.08165889e+02 2.07745922e+02 2.39e-04 4.44e-16 5.40e-04 0s 9 2.08010606e+02 2.07978391e+02 1.36e-05 4.27e-16 4.14e-05 0s 10 2.08000011e+02 2.07999978e+02 6.00e-12 4.46e-16 4.15e-08 0s 11 2.08000000e+02 2.08000000e+02 9.98e-12 4.72e-16 4.15e-11 0s Barrier solved model in 11 iterations and 0.00 seconds Optimal objective 2.08000000e+02 Root relaxation: objective 2.080000e+02, 193 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 208.00000 0 4 355.00000 208.00000 41.4% - 0s H 0 0 209.0000000 208.00000 0.48% - 0s H 0 0 208.0000000 208.00000 0.0% - 0s Explored 0 nodes (243 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.080000000000e+02, best bound 2.080000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.02 seconds Total run time: 0.03 seconds Objective: 208 Solution: 18 x [8] 10 x [35, 39] 17 x [31, 40] 4 x [28, 31] 9 x [28, 29] 7 x [1, 38] 1 x [1, 35] 3 x [24, 36] 1 x [12, 16] 4 x [5, 16] 11 x [11, 25] 1 x [10, 18] 8 x [10, 33] 10 x [9, 38] 3 x [7, 28] 19 x [6, 12] 3 x [3, 32] 4 x [3, 27] 5 x [3, 21] 5 x [3, 25] 7 x [2, 15] 1 x [12, 15] 6 x [4, 17] 1 x [4, 26, 38] 5 x [19, 22] 3 x [37, 37] 1 x [19, 34] 1 x [30, 34] 2 x [14, 34] 15 x [19, 30] 1 x [17, 23] 9 x [23, 23] 1 x [18, 20, 26] 1 x [20, 20] 5 x [14, 17] 6 x [13, 14]