Build (method = -2) #dp: 2752 Step-3' Graph: 279 vertices and 1423 arcs (0.02s) Step-4' Graph: 270 vertices and 1405 arcs (0.02s) #V4/#V3 = 0.97 #A4/#A3 = 0.99 Ready! (0.02s) Optimize a model with 309 rows, 1406 columns and 3687 nonzeros Presolve removed 87 rows and 182 columns Presolve time: 0.02s Presolved: 222 rows, 1224 columns, 3350 nonzeros Variable types: 0 continuous, 1224 integer (24 binary) Found heuristic solution: objective 384.0000000 Found heuristic solution: objective 343.0000000 Optimize a model with 222 rows, 1224 columns and 3350 nonzeros Presolved: 222 rows, 1224 columns, 3350 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.972e+03 Factor NZ : 7.547e+03 Factor Ops : 4.105e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.96699135e+03 -3.26486271e+04 1.94e+04 1.67e-01 1.47e+02 0s 1 1.16909290e+03 -1.67664383e+04 3.67e+03 6.77e-15 3.01e+01 0s 2 4.81080546e+02 -7.35429727e+03 3.36e+02 5.22e-15 4.94e+00 0s 3 3.99357284e+02 -1.37953595e+03 3.12e+01 3.77e-15 8.26e-01 0s 4 3.72841981e+02 -4.11616613e+02 3.61e+00 6.66e-15 3.24e-01 0s 5 3.49062643e+02 -3.43779878e+02 2.01e+00 6.35e-15 2.84e-01 0s 6 3.22951744e+02 -1.31367906e+02 9.46e-01 5.86e-15 1.86e-01 0s 7 2.77616070e+02 1.18619297e+01 3.91e-01 4.30e-15 1.08e-01 0s 8 2.35614302e+02 1.25861274e+02 6.10e-02 4.13e-15 4.46e-02 0s 9 2.24963901e+02 2.03845618e+02 4.20e-03 5.20e-15 8.57e-03 0s 10 2.23073897e+02 2.22804742e+02 3.01e-05 3.85e-15 1.09e-04 0s 11 2.23000002e+02 2.22999996e+02 7.62e-10 4.98e-15 2.59e-09 0s 12 2.23000000e+02 2.23000000e+02 1.42e-13 6.14e-15 3.37e-15 0s Barrier solved model in 12 iterations and 0.02 seconds Optimal objective 2.23000000e+02 Root relaxation: objective 2.230000e+02, 596 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 223.0000000 223.00000 0.0% - 0s Explored 0 nodes (596 simplex iterations) in 0.08 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.230000000000e+02, best bound 2.230000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.08 seconds Total run time: 0.12 seconds Objective: 223 Solution: 1 x [34] 1 x [33] 15 x [33, 37] 8 x [32] 2 x [32, 38] 9 x [6] 4 x [6, 26, 26] 2 x [24] 6 x [24, 38] 11 x [4, 24, 26] 16 x [22] 2 x [2, 2, 2, 22] 2 x [13] 12 x [10, 13] 2 x [12] 5 x [11] 4 x [1, 11] 3 x [8] 6 x [7] 2 x [4, 7] 1 x [31] 3 x [31, 36] 5 x [1, 31, 38] 7 x [25] 4 x [3, 25] 9 x [25, 36] 1 x [25, 28, 28] 4 x [21] 4 x [1, 19, 21] 7 x [3, 20] 2 x [4, 20] 4 x [17] 11 x [15, 17] 5 x [14, 17] 1 x [3, 17] 6 x [10, 16] 4 x [9] 1 x [5, 23] 2 x [18, 23] 3 x [23, 39] 6 x [30, 35] 10 x [23, 30] 1 x [27, 29] 7 x [27, 27] 2 x [23, 23]