Gurobi Optimizer version 9.0.0 build v9.0.0rc2 (linux64)
Optimize a model with 124 rows, 141 columns and 400 nonzeros
Model fingerprint: 0x46af87f0
Variable types: 117 continuous, 24 integer (24 binary)
Coefficient statistics:
  Matrix range     [5e-02, 2e+04]
  Objective range  [9e-01, 3e+03]
  Bounds range     [1e+00, 1e+08]
  RHS range        [3e+01, 2e+04]
Presolve removed 98 rows and 107 columns
Presolve time: 0.00s
Presolved: 26 rows, 34 columns, 74 nonzeros
Variable types: 28 continuous, 6 integer (6 binary)

Root relaxation: objective 1.870636e+06, 10 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 1870636.06    0    2          - 1870636.06      -     -    0s
H    0     0                    1871178.9617 1870636.06  0.03%     -    0s

Explored 1 nodes (10 simplex iterations) in 0.00 seconds
Thread count was 8 (of 80 available processors)

Solution count 1: 1.87118e+06 

Optimal solution found (tolerance 1.00e-02)
Best objective 1.871178961663e+06, best bound 1.870636062997e+06, gap 0.0290%
Gurobi Optimizer version 9.0.0 build v9.0.0rc2 (linux64)
Optimize a model with 124 rows, 141 columns and 400 nonzeros
Model fingerprint: 0x133a97e7
Coefficient statistics:
  Matrix range     [5e-02, 2e+04]
  Objective range  [9e-01, 3e+03]
  Bounds range     [1e+00, 1e+08]
  RHS range        [3e+01, 2e+04]
Presolve removed 115 rows and 110 columns
Presolve time: 0.00s
Presolved: 9 rows, 31 columns, 94 nonzeros

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.0296026e+06   1.950922e+03   0.000000e+00      0s
       7    1.8711790e+06   0.000000e+00   0.000000e+00      0s

Solved in 7 iterations and 0.00 seconds
Optimal objective  1.871178962e+06
Reading s1.json...
Building graph...
Building optimization model...
Optimizing MILP...
Re-optimizing with integer variables fixed...
Extracting solution...