
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:13:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5598.37.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo5598.37.lp
Reading time = 0.16 seconds
: 73640 rows, 1904 columns, 222479 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 73640 rows, 1904 columns and 222479 nonzeros
Model fingerprint: 0x9f6f244a
Variable types: 44 continuous, 1860 integer (1860 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective 1.0000000
Presolve removed 18455 rows and 40 columns
Presolve time: 0.74s
Presolved: 55185 rows, 1864 columns, 167503 nonzeros
Variable types: 0 continuous, 1864 integer (1820 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1864 rows, 57049 columns, 169367 nonzeros


Root relaxation: objective 4.300000e+01, 2102 iterations, 0.82 seconds (0.51 work units)
Total elapsed time = 9.22s (DegenMoves)

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

     0     0   43.00000    0  587    6.00000   43.00000   617%     -   10s
H    0     0                       8.0000000   43.00000   437%     -   10s
     0     0   43.00000    0  879    8.00000   43.00000   437%     -   28s
     0     0   43.00000    0  851    8.00000   43.00000   437%     -   30s
     0     0   43.00000    0  965    8.00000   43.00000   437%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 5
  Clique: 14
  MIR: 110
  StrongCG: 1
  Zero half: 52
  RLT: 80

Explored 1 nodes (30066 simplex iterations) in 50.07 seconds (32.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 6 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.300000000000e+01, gap 437.5000%

Wrote result file './lp_solutions/grafo5598.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:35:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5598.37.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo5598.37.lp
Reading time = 0.12 seconds
: 73640 rows, 1904 columns, 222479 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 73640 rows, 1904 columns and 222479 nonzeros
Model fingerprint: 0x9f6f244a
Variable types: 44 continuous, 1860 integer (1860 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective 1.0000000
Presolve removed 18455 rows and 40 columns
Presolve time: 0.53s
Presolved: 55185 rows, 1864 columns, 167503 nonzeros
Variable types: 0 continuous, 1864 integer (1820 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1864 rows, 57049 columns, 169367 nonzeros


Root relaxation: objective 4.300000e+01, 2102 iterations, 0.49 seconds (0.51 work units)
Total elapsed time = 6.59s (DegenMoves)

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

     0     0   43.00000    0  587    6.00000   43.00000   617%     -    7s
H    0     0                       8.0000000   43.00000   437%     -    7s
     0     0   43.00000    0  879    8.00000   43.00000   437%     -   21s
     0     0   43.00000    0  851    8.00000   43.00000   437%     -   22s
H    0     0                       9.0000000   43.00000   378%     -   49s
     0     0   43.00000    0  692    9.00000   43.00000   378%     -   49s
     0     0          -    0         9.00000   43.00000   378%     -   50s

Cutting planes:
  Gomory: 1
  Clique: 5
  MIR: 24
  StrongCG: 1
  Zero half: 5
  RLT: 17

Explored 1 nodes (41421 simplex iterations) in 50.07 seconds (43.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 6 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.300000000000e+01, gap 377.7778%

Wrote result file './lp_solutions/grafo5598.37.sol'

