
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 10:00:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7462.38.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/grafo7462.38.lp
Reading time = 0.10 seconds
: 55521 rows, 1824 columns, 167998 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 55521 rows, 1824 columns and 167998 nonzeros
Model fingerprint: 0xa2246bbe
Variable types: 42 continuous, 1782 integer (1782 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 2.0000000
Presolve removed 9290 rows and 31 columns
Presolve time: 0.42s
Presolved: 46231 rows, 1793 columns, 140535 nonzeros
Variable types: 0 continuous, 1793 integer (1751 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 26315 rows, 21709 columns, 100703 nonzeros


Root relaxation: objective 3.700000e+01, 2763 iterations, 1.13 seconds (0.99 work units)

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

     0     0   37.00000    0  393    9.00000   37.00000   311%     -    3s
H    0     0                      11.0000000   37.00000   236%     -    5s
     0     0   37.00000    0  694   11.00000   37.00000   236%     -   10s
H    0     0                      12.0000000   37.00000   208%     -   10s
     0     0   37.00000    0  636   12.00000   37.00000   208%     -   11s
     0     0   37.00000    0  501   12.00000   37.00000   208%     -   22s
     0     0   37.00000    0  481   12.00000   37.00000   208%     -   23s
H    0     0                      13.0000000   37.00000   185%     -   43s
     0     0   37.00000    0  553   13.00000   37.00000   185%     -   43s
     0     0   37.00000    0  547   13.00000   37.00000   185%     -   43s
     0     0   37.00000    0  695   13.00000   37.00000   185%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 26
  Clique: 1
  MIR: 104
  StrongCG: 2
  GUB cover: 4
  Zero half: 61
  RLT: 61

Explored 1 nodes (49395 simplex iterations) in 50.05 seconds (39.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 2

Time limit reached
Best objective 1.300000000000e+01, best bound 3.700000000000e+01, gap 184.6154%

Wrote result file './lp_solutions/grafo7462.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:56:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7462.38.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/grafo7462.38.lp
Reading time = 0.09 seconds
: 55521 rows, 1824 columns, 167998 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 55521 rows, 1824 columns and 167998 nonzeros
Model fingerprint: 0xa2246bbe
Variable types: 42 continuous, 1782 integer (1782 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 2.0000000
Presolve removed 9290 rows and 31 columns
Presolve time: 0.36s
Presolved: 46231 rows, 1793 columns, 140535 nonzeros
Variable types: 0 continuous, 1793 integer (1751 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 26315 rows, 21709 columns, 100703 nonzeros


Root relaxation: objective 3.700000e+01, 2763 iterations, 0.99 seconds (0.99 work units)

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

     0     0   37.00000    0  393    9.00000   37.00000   311%     -    3s
H    0     0                      11.0000000   37.00000   236%     -    4s
     0     0   37.00000    0  694   11.00000   37.00000   236%     -    8s
H    0     0                      12.0000000   37.00000   208%     -    8s
     0     0   37.00000    0  636   12.00000   37.00000   208%     -    9s
     0     0   37.00000    0  501   12.00000   37.00000   208%     -   19s
     0     0   37.00000    0  481   12.00000   37.00000   208%     -   19s
H    0     0                      13.0000000   37.00000   185%     -   37s
     0     0   37.00000    0  553   13.00000   37.00000   185%     -   37s
     0     0   37.00000    0  547   13.00000   37.00000   185%     -   37s
     0     0   37.00000    0  605   13.00000   37.00000   185%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 26
  Clique: 1
  MIR: 104
  StrongCG: 2
  GUB cover: 4
  Zero half: 61
  RLT: 61

Explored 1 nodes (60016 simplex iterations) in 50.06 seconds (47.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 2

Time limit reached
Best objective 1.300000000000e+01, best bound 3.700000000000e+01, gap 184.6154%

Wrote result file './lp_solutions/grafo7462.38.sol'

