
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:50:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5790.37.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/grafo5790.37.lp
Reading time = 0.13 seconds
: 51812 rows, 1769 columns, 156817 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 51812 rows, 1769 columns and 156817 nonzeros
Model fingerprint: 0x6752fdb7
Variable types: 42 continuous, 1727 integer (1727 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 8049 rows and 51 columns
Presolve time: 0.64s
Presolved: 43763 rows, 1718 columns, 133173 nonzeros
Variable types: 0 continuous, 1718 integer (1676 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 24513 rows, 20968 columns, 94673 nonzeros


Root relaxation: objective 3.100000e+01, 2677 iterations, 1.66 seconds (1.07 work units)
Total elapsed time = 10.91s (DegenMoves)

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

     0     0   31.00000    0  347    5.00000   31.00000   520%     -   12s
H    0     0                       6.0000000   31.00000   417%     -   12s
H    0     0                       7.0000000   31.00000   343%     -   12s
     0     0   31.00000    0  628    7.00000   31.00000   343%     -   20s
H    0     0                       8.0000000   31.00000   287%     -   21s
     0     0   31.00000    0  623    8.00000   31.00000   287%     -   22s
     0     0   31.00000    0  447    8.00000   31.00000   287%     -   43s
     0     0   31.00000    0  401    8.00000   31.00000   287%     -   45s
     0     0          -    0         8.00000   31.00000   287%     -   50s

Cutting planes:
  Cover: 21
  MIR: 76
  StrongCG: 1
  GUB cover: 3
  Zero half: 31
  RLT: 33
  BQP: 1

Explored 1 nodes (41700 simplex iterations) in 50.06 seconds (32.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 7 6 ... 1

Time limit reached
Best objective 8.000000000000e+00, best bound 3.100000000000e+01, gap 287.5000%

Wrote result file './lp_solutions/grafo5790.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:40:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5790.37.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/grafo5790.37.lp
Reading time = 0.09 seconds
: 51812 rows, 1769 columns, 156817 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 51812 rows, 1769 columns and 156817 nonzeros
Model fingerprint: 0x6752fdb7
Variable types: 42 continuous, 1727 integer (1727 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 8049 rows and 51 columns
Presolve time: 0.36s
Presolved: 43763 rows, 1718 columns, 133173 nonzeros
Variable types: 0 continuous, 1718 integer (1676 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 24513 rows, 20968 columns, 94673 nonzeros


Root relaxation: objective 3.100000e+01, 2677 iterations, 1.12 seconds (1.07 work units)
Total elapsed time = 7.90s (DegenMoves)

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

     0     0   31.00000    0  347    5.00000   31.00000   520%     -    9s
H    0     0                       6.0000000   31.00000   417%     -    9s
H    0     0                       7.0000000   31.00000   343%     -    9s
     0     0   31.00000    0  628    7.00000   31.00000   343%     -   13s
H    0     0                       8.0000000   31.00000   287%     -   14s
     0     0   31.00000    0  623    8.00000   31.00000   287%     -   14s
     0     0   31.00000    0  447    8.00000   31.00000   287%     -   30s
     0     0   31.00000    0  401    8.00000   31.00000   287%     -   31s
     0     0   31.00000    0  507    8.00000   31.00000   287%     -   48s
     0     0   31.00000    0  499    8.00000   31.00000   287%     -   49s
     0     0          -    0         8.00000   31.00000   287%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 26
  MIR: 116
  GUB cover: 1
  Zero half: 34
  RLT: 35

Explored 1 nodes (60487 simplex iterations) in 50.06 seconds (47.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 7 6 ... 1

Time limit reached
Best objective 8.000000000000e+00, best bound 3.100000000000e+01, gap 287.5000%

Wrote result file './lp_solutions/grafo5790.37.sol'

