
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:59:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5835.44.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/grafo5835.44.lp
Reading time = 0.12 seconds
: 61902 rows, 2099 columns, 187205 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 61902 rows, 2099 columns and 187205 nonzeros
Model fingerprint: 0xc3d85ec0
Variable types: 42 continuous, 2057 integer (2057 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 5.0000000
Presolve removed 7362 rows and 42 columns
Presolve time: 0.54s
Presolved: 54540 rows, 2057 columns, 165537 nonzeros
Variable types: 0 continuous, 2057 integer (2015 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 29816 rows, 26781 columns, 116089 nonzeros


Root relaxation: objective 3.700000e+01, 1711 iterations, 0.96 seconds (0.50 work units)

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

     0     0   37.00000    0  326   12.00000   37.00000   208%     -    3s
H    0     0                      13.0000000   37.00000   185%     -    3s
H    0     0                      14.0000000   37.00000   164%     -   15s
     0     0   37.00000    0  767   14.00000   37.00000   164%     -   17s
     0     0   37.00000    0  757   14.00000   37.00000   164%     -   18s
H    0     0                      15.0000000   37.00000   147%     -   41s
     0     0   37.00000    0  420   15.00000   37.00000   147%     -   41s
     0     0   37.00000    0  450   15.00000   37.00000   147%     -   43s
     0     0   37.00000    0  548   15.00000   37.00000   147%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 18
  Clique: 1
  MIR: 106
  GUB cover: 2
  Zero half: 66
  RLT: 42
  BQP: 2

Explored 1 nodes (33922 simplex iterations) in 50.12 seconds (29.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 5

Time limit reached
Best objective 1.500000000000e+01, best bound 3.700000000000e+01, gap 146.6667%

Wrote result file './lp_solutions/grafo5835.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:17:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5835.44.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/grafo5835.44.lp
Reading time = 0.10 seconds
: 61902 rows, 2099 columns, 187205 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 61902 rows, 2099 columns and 187205 nonzeros
Model fingerprint: 0xc3d85ec0
Variable types: 42 continuous, 2057 integer (2057 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 5.0000000
Presolve removed 7362 rows and 42 columns
Presolve time: 0.41s
Presolved: 54540 rows, 2057 columns, 165537 nonzeros
Variable types: 0 continuous, 2057 integer (2015 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 29816 rows, 26781 columns, 116089 nonzeros


Root relaxation: objective 3.700000e+01, 1711 iterations, 0.54 seconds (0.50 work units)

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

     0     0   37.00000    0  326   12.00000   37.00000   208%     -    2s
H    0     0                      13.0000000   37.00000   185%     -    2s
H    0     0                      14.0000000   37.00000   164%     -   10s
     0     0   37.00000    0  767   14.00000   37.00000   164%     -   11s
     0     0   37.00000    0  757   14.00000   37.00000   164%     -   11s
H    0     0                      15.0000000   37.00000   147%     -   29s
     0     0   37.00000    0  420   15.00000   37.00000   147%     -   29s
     0     0   37.00000    0  450   15.00000   37.00000   147%     -   29s
H    0     0                      16.0000000   37.00000   131%     -   36s
     0     0   37.00000    0  337   16.00000   37.00000   131%     -   36s
     0     0   37.00000    0  383   16.00000   37.00000   131%     -   37s
     0     0   37.00000    0  296   16.00000   37.00000   131%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 1
  MIR: 23
  Zero half: 6
  RLT: 19

Explored 1 nodes (55434 simplex iterations) in 50.12 seconds (44.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 16 15 14 ... 5

Time limit reached
Best objective 1.600000000000e+01, best bound 3.700000000000e+01, gap 131.2500%

Wrote result file './lp_solutions/grafo5835.44.sol'

