Build (method = -2) #dp: 14048 Step-3' Graph: 160 vertices and 585 arcs (0.07s) Step-4' Graph: 82 vertices and 429 arcs (0.07s) #V4/#V3 = 0.51 #A4/#A3 = 0.73 Ready! (0.07s) Optimize a model with 101 rows, 430 columns and 1135 nonzeros Presolve removed 17 rows and 33 columns Presolve time: 0.00s Presolved: 84 rows, 397 columns, 1084 nonzeros Variable types: 0 continuous, 397 integer (0 binary) Found heuristic solution: objective 1776.0000000 Found heuristic solution: objective 1429.0000000 Optimize a model with 84 rows, 397 columns and 1084 nonzeros Presolved: 84 rows, 397 columns, 1084 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.100e+02 Factor NZ : 1.799e+03 Factor Ops : 4.317e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.96450111e+04 -8.37819527e+04 5.22e+04 2.22e-16 7.13e+02 0s 1 4.74145365e+03 -3.12749870e+04 6.60e+03 6.66e-16 1.08e+02 0s 2 2.00248465e+03 -9.71962047e+03 8.28e+02 1.05e-15 1.98e+01 0s 3 1.27967534e+03 -2.09004828e+03 7.77e-01 3.33e-16 4.15e+00 0s 4 6.71050845e+02 -7.12207247e+02 1.46e-01 5.00e-16 1.70e+00 0s 5 4.44220765e+02 -1.55172048e+02 6.57e-02 2.22e-16 7.37e-01 0s 6 3.62585472e+02 1.70944759e+02 2.66e-02 2.67e-16 2.36e-01 0s 7 3.47629985e+02 2.82263844e+02 1.34e-02 2.22e-16 8.04e-02 0s 8 3.33512264e+02 3.32859214e+02 9.26e-13 2.57e-16 8.03e-04 0s 9 3.33333338e+02 3.33333318e+02 3.40e-13 2.84e-16 2.49e-08 0s 10 3.33333333e+02 3.33333333e+02 3.75e-12 3.27e-16 2.49e-11 0s Barrier solved model in 10 iterations and 0.00 seconds Optimal objective 3.33333333e+02 Root relaxation: objective 3.333333e+02, 288 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 333.33333 0 16 1429.00000 333.33333 76.7% - 0s H 0 0 335.0000000 333.33333 0.50% - 0s H 0 0 334.0000000 333.33333 0.20% - 0s Explored 0 nodes (363 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.340000000000e+02, best bound 3.340000000000e+02, gap 0.0% Preprocessing time: 0.08 seconds Gurobi run time: 0.02 seconds Total run time: 0.10 seconds Objective: 334 Solution: 9 x [2, 13, 14, 14, 16, 17] 7 x [1, 2, 8, 13, 16, 17] 20 x [2, 3, 3, 4, 11, 17] 86 x [1, 2, 5, 8, 15, 19] 4 x [1, 2, 2, 5, 10, 17] 20 x [3, 7, 9, 9, 16, 17] 54 x [4, 5, 6, 8, 10, 16] 29 x [13, 14, 14, 16, 16, 19] 39 x [4, 4, 9, 9, 12, 18] 2 x [3, 3, 4, 7, 14, 18] 1 x [3, 3, 4, 6, 7, 14] 1 x [3, 3, 4] 61 x [1, 3, 7, 14, 17, 18] 1 x [1, 3, 5, 6, 8]