
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:53:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo540.16.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/grafo540.16.lp
Reading time = 0.01 seconds
: 1836 rows, 228 columns, 5541 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 1836 rows, 228 columns and 5541 nonzeros
Model fingerprint: 0x7c504129
Variable types: 12 continuous, 216 integer (216 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 193 rows and 12 columns
Presolve time: 0.03s
Presolved: 1643 rows, 216 columns, 5055 nonzeros
Variable types: 0 continuous, 216 integer (204 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 5.000000e+00, 71 iterations, 0.01 seconds (0.00 work units)

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

     0     0    5.00000    0   31    2.00000    5.00000   150%     -    0s
H    0     0                       3.0000000    5.00000  66.7%     -    0s
     0     0    5.00000    0   40    3.00000    5.00000  66.7%     -    0s
     0     0    5.00000    0   40    3.00000    5.00000  66.7%     -    0s
H    0     0                       4.0000000    5.00000  25.0%     -    0s
     0     0    5.00000    0    7    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    7    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    3    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    9    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   20    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    3    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
     0     2    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
   160   110 infeasible   25         4.00000    5.00000  25.0%  68.3    5s
   947   166    5.00000   24    4    4.00000    5.00000  25.0%  79.4   10s
  1708    94 infeasible   30         4.00000    5.00000  25.0%  73.5   15s

Cutting planes:
  Gomory: 3
  Cover: 2
  Clique: 4
  MIR: 1
  Flow cover: 7
  Zero half: 1
  RLT: 2

Explored 2259 nodes (176024 simplex iterations) in 18.78 seconds (4.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 4 3 2 1 

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo540.16.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 02:07:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo540.16.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/grafo540.16.lp
Reading time = 0.01 seconds
: 1836 rows, 228 columns, 5541 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 1836 rows, 228 columns and 5541 nonzeros
Model fingerprint: 0x7c504129
Variable types: 12 continuous, 216 integer (216 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 193 rows and 12 columns
Presolve time: 0.03s
Presolved: 1643 rows, 216 columns, 5055 nonzeros
Variable types: 0 continuous, 216 integer (204 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 5.000000e+00, 71 iterations, 0.01 seconds (0.00 work units)

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

     0     0    5.00000    0   31    2.00000    5.00000   150%     -    0s
H    0     0                       3.0000000    5.00000  66.7%     -    0s
     0     0    5.00000    0   40    3.00000    5.00000  66.7%     -    0s
     0     0    5.00000    0   40    3.00000    5.00000  66.7%     -    0s
H    0     0                       4.0000000    5.00000  25.0%     -    0s
     0     0    5.00000    0    7    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    7    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    3    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    9    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   20    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    3    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
     0     2    5.00000    0   23    4.00000    5.00000  25.0%     -    0s
   687   160 infeasible   26         4.00000    5.00000  25.0%  77.0    5s
  1708    94 infeasible   30         4.00000    5.00000  25.0%  73.5   10s

Cutting planes:
  Gomory: 3
  Cover: 2
  Clique: 4
  MIR: 1
  Flow cover: 7
  Zero half: 1
  RLT: 2

Explored 2259 nodes (176024 simplex iterations) in 11.86 seconds (4.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 4 3 2 1 

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo540.16.sol'

