
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 22:00:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3159.38.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/grafo3159.38.lp
Reading time = 0.12 seconds
: 65651 rows, 1875 columns, 198424 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 65651 rows, 1875 columns and 198424 nonzeros
Model fingerprint: 0xee0ddf5a
Variable types: 42 continuous, 1833 integer (1833 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]
Presolve removed 14716 rows and 42 columns
Presolve time: 0.57s
Presolved: 50935 rows, 1833 columns, 154661 nonzeros
Variable types: 0 continuous, 1833 integer (1791 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1833 rows, 52768 columns, 156494 nonzeros


Root relaxation: objective 3.700000e+01, 2232 iterations, 0.81 seconds (0.69 work units)
Total elapsed time = 6.15s (DegenMoves)

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

     0     0   37.00000    0  474    9.00000   37.00000   311%     -    6s
H    0     0                      12.0000000   37.00000   208%     -    6s
     0     0   37.00000    0  702   12.00000   37.00000   208%     -   21s
H    0     0                      13.0000000   37.00000   185%     -   22s
     0     0   37.00000    0  705   13.00000   37.00000   185%     -   22s
     0     0   37.00000    0  453   13.00000   37.00000   185%     -   38s
     0     0   37.00000    0  461   13.00000   37.00000   185%     -   38s
     0     0   37.00000    0  465   13.00000   37.00000   185%     -   50s

Cutting planes:
  Cover: 21
  Clique: 16
  MIR: 80
  StrongCG: 1
  GUB cover: 3
  Zero half: 30
  RLT: 68
  BQP: 1

Explored 1 nodes (44845 simplex iterations) in 50.05 seconds (38.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 12 9 

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

Wrote result file './lp_solutions/grafo3159.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:43:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3159.38.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/grafo3159.38.lp
Reading time = 0.11 seconds
: 65651 rows, 1875 columns, 198424 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 65651 rows, 1875 columns and 198424 nonzeros
Model fingerprint: 0xee0ddf5a
Variable types: 42 continuous, 1833 integer (1833 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]
Presolve removed 14716 rows and 42 columns
Presolve time: 0.46s
Presolved: 50935 rows, 1833 columns, 154661 nonzeros
Variable types: 0 continuous, 1833 integer (1791 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1833 rows, 52768 columns, 156494 nonzeros


Root relaxation: objective 3.700000e+01, 2232 iterations, 0.57 seconds (0.69 work units)
Total elapsed time = 5.09s (DegenMoves)

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

     0     0   37.00000    0  474    9.00000   37.00000   311%     -    5s
H    0     0                      12.0000000   37.00000   208%     -    5s
     0     0   37.00000    0  702   12.00000   37.00000   208%     -   16s
H    0     0                      13.0000000   37.00000   185%     -   17s
     0     0   37.00000    0  705   13.00000   37.00000   185%     -   17s
     0     0   37.00000    0  453   13.00000   37.00000   185%     -   32s
     0     0   37.00000    0  461   13.00000   37.00000   185%     -   32s
     0     0   37.00000    0  407   13.00000   37.00000   185%     -   42s
     0     0   37.00000    0  397   13.00000   37.00000   185%     -   43s
     0     0          -    0        13.00000   37.00000   185%     -   50s

Cutting planes:
  Cover: 36
  Clique: 21
  MIR: 107
  StrongCG: 2
  GUB cover: 6
  Zero half: 31
  RLT: 80
  BQP: 3

Explored 1 nodes (51847 simplex iterations) in 50.05 seconds (45.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 12 9 

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

Wrote result file './lp_solutions/grafo3159.38.sol'

