Build (method = -2) #dp: 767 Step-3' Graph: 59 vertices and 370 arcs (0.00s) Step-4' Graph: 35 vertices and 322 arcs (0.00s) #V4/#V3 = 0.59 #A4/#A3 = 0.87 Ready! (0.00s) Optimize a model with 74 rows, 323 columns and 904 nonzeros Presolve removed 22 rows and 32 columns Presolve time: 0.00s Presolved: 52 rows, 291 columns, 821 nonzeros Variable types: 0 continuous, 291 integer (28 binary) Found heuristic solution: objective 357.0000000 Found heuristic solution: objective 348.0000000 Found heuristic solution: objective 289.0000000 Optimize a model with 52 rows, 291 columns and 821 nonzeros Presolved: 52 rows, 291 columns, 821 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.850e+02 Factor NZ : 9.720e+02 Factor Ops : 2.167e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.31677359e+03 -6.93768259e+03 1.97e+04 1.06e-01 1.20e+02 0s 1 1.02275650e+03 -2.72313293e+03 2.76e+03 5.55e-16 1.91e+01 0s 2 4.03344880e+02 -7.71642176e+02 1.70e+02 2.78e-15 2.53e+00 0s 3 3.00995595e+02 -5.89801140e+01 1.12e+01 5.55e-16 6.18e-01 0s 4 2.42670876e+02 1.09827999e+02 2.91e+00 3.33e-16 2.24e-01 0s 5 2.18310077e+02 1.71506371e+02 7.70e-01 2.22e-16 7.84e-02 0s 6 2.08827470e+02 2.03339474e+02 1.92e-01 3.33e-16 9.26e-03 0s 7 2.06684188e+02 2.06273976e+02 1.43e-02 2.22e-16 6.92e-04 0s 8 2.06500195e+02 2.06499777e+02 1.08e-12 3.33e-16 6.96e-07 0s 9 2.06500000e+02 2.06500000e+02 4.62e-13 2.73e-16 6.97e-13 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.06500000e+02 Root relaxation: objective 2.065000e+02, 93 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 206.50000 0 9 289.00000 206.50000 28.5% - 0s H 0 0 207.0000000 206.50000 0.24% - 0s Explored 0 nodes (119 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.070000000000e+02, best bound 2.070000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 207 Solution: 16 x [2, 26] 16 x [33, 39] 3 x [24, 33] 13 x [19] 1 x [19, 33] 4 x [3, 4] 7 x [3, 31] 2 x [4, 17] 15 x [6, 14] 2 x [11, 13] 2 x [11, 22] 10 x [28, 38] 2 x [27, 38] 7 x [26, 38] 6 x [30, 37] 3 x [27, 37] 11 x [20, 37] 1 x [29, 32] 9 x [8, 15] 12 x [7, 15] 2 x [10, 12] 1 x [9] 1 x [9, 10] 6 x [8, 9] 7 x [5, 16] 16 x [1, 21] 3 x [23, 36] 2 x [21, 36] 1 x [25, 35] 12 x [23, 34] 4 x [18, 34] 5 x [23, 25] 4 x [7, 16] 1 x [7, 10]