
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:09:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5575.39.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/grafo5575.39.lp
Reading time = 0.12 seconds
: 58155 rows, 1977 columns, 176068 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 58155 rows, 1977 columns and 176068 nonzeros
Model fingerprint: 0x79bfbcad
Variable types: 44 continuous, 1933 integer (1933 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 4.0000000
Presolve removed 8071 rows and 45 columns
Presolve time: 0.48s
Presolved: 50084 rows, 1932 columns, 152262 nonzeros
Variable types: 0 continuous, 1932 integer (1888 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 27701 rows, 24315 columns, 107496 nonzeros


Root relaxation: objective 3.900000e+01, 2019 iterations, 0.99 seconds (0.50 work units)

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

     0     0   39.00000    0  335    9.00000   39.00000   333%     -    4s
H    0     0                      10.0000000   39.00000   290%     -    6s
     0     0   39.00000    0  642   10.00000   39.00000   290%     -   12s
H    0     0                      11.0000000   39.00000   255%     -   12s
     0     0   39.00000    0  596   11.00000   39.00000   255%     -   13s
     0     0   39.00000    0  461   11.00000   39.00000   255%     -   26s
H    0     0                      17.0000000   39.00000   129%     -   27s
     0     0   39.00000    0  407   17.00000   39.00000   129%     -   27s
     0     0   39.00000    0  623   17.00000   39.00000   129%     -   44s
     0     0   39.00000    0  597   17.00000   39.00000   129%     -   48s
     0     0          -    0        17.00000   39.00000   129%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 16
  Clique: 1
  MIR: 106
  StrongCG: 2
  GUB cover: 3
  Zero half: 55
  RLT: 41
  BQP: 1

Explored 1 nodes (39748 simplex iterations) in 50.10 seconds (29.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 17 11 10 ... 4

Time limit reached
Best objective 1.700000000000e+01, best bound 3.900000000000e+01, gap 129.4118%

Wrote result file './lp_solutions/grafo5575.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:24:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5575.39.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/grafo5575.39.lp
Reading time = 0.09 seconds
: 58155 rows, 1977 columns, 176068 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 58155 rows, 1977 columns and 176068 nonzeros
Model fingerprint: 0x79bfbcad
Variable types: 44 continuous, 1933 integer (1933 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 4.0000000
Presolve removed 8071 rows and 45 columns
Presolve time: 0.38s
Presolved: 50084 rows, 1932 columns, 152262 nonzeros
Variable types: 0 continuous, 1932 integer (1888 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 27701 rows, 24315 columns, 107496 nonzeros


Root relaxation: objective 3.900000e+01, 2019 iterations, 0.55 seconds (0.50 work units)

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

     0     0   39.00000    0  335    9.00000   39.00000   333%     -    3s
H    0     0                      10.0000000   39.00000   290%     -    3s
     0     0   39.00000    0  642   10.00000   39.00000   290%     -    7s
H    0     0                      11.0000000   39.00000   255%     -    7s
     0     0   39.00000    0  596   11.00000   39.00000   255%     -    8s
     0     0   39.00000    0  461   11.00000   39.00000   255%     -   17s
H    0     0                      17.0000000   39.00000   129%     -   17s
     0     0   39.00000    0  407   17.00000   39.00000   129%     -   17s
     0     0   39.00000    0  623   17.00000   39.00000   129%     -   29s
     0     0   39.00000    0  597   17.00000   39.00000   129%     -   31s
     0     0   39.00000    0  442   17.00000   39.00000   129%     -   41s
H    0     0                      18.0000000   39.00000   117%     -   41s
     0     0   39.00000    0  492   18.00000   39.00000   117%     -   42s
     0     0   39.00000    0  646   18.00000   39.00000   117%     -   50s

Cutting planes:
  Cover: 25
  Clique: 4
  MIR: 150
  StrongCG: 2
  Zero half: 42
  RLT: 45

Explored 1 nodes (61675 simplex iterations) in 50.04 seconds (46.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 18 17 11 ... 4

Time limit reached
Best objective 1.800000000000e+01, best bound 3.900000000000e+01, gap 116.6667%

Wrote result file './lp_solutions/grafo5575.39.sol'

