
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:19:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1668.33.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/grafo1668.33.lp
Reading time = 0.11 seconds
: 59404 rows, 1495 columns, 179397 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 59404 rows, 1495 columns and 179397 nonzeros
Model fingerprint: 0x128cbfd4
Variable types: 38 continuous, 1457 integer (1457 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 17910 rows and 30 columns
Presolve time: 0.70s
Presolved: 41494 rows, 1465 columns, 126031 nonzeros
Variable types: 0 continuous, 1465 integer (1427 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 27602 rows, 15357 columns, 98247 nonzeros


Root relaxation: objective 3.100000e+01, 3048 iterations, 2.08 seconds (1.54 work units)
Total elapsed time = 6.04s (DegenMoves)

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

     0     0   31.00000    0  333    4.00000   31.00000   675%     -    8s
H    0     0                       5.0000000   31.00000   520%     -    8s
H    0     0                       6.0000000   31.00000   417%     -    8s
     0     0   31.00000    0  527    6.00000   31.00000   417%     -   15s
     0     0   31.00000    0  533    6.00000   31.00000   417%     -   15s
H    0     0                       7.0000000   31.00000   343%     -   18s
     0     0   31.00000    0  508    7.00000   31.00000   343%     -   33s
     0     0   31.00000    0  570    7.00000   31.00000   343%     -   35s
     0     0   31.00000    0  435    7.00000   31.00000   343%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 22
  Clique: 17
  MIR: 78
  StrongCG: 1
  GUB cover: 1
  Zero half: 30
  RLT: 62
  Relax-and-lift: 1
  BQP: 3

Explored 1 nodes (38851 simplex iterations) in 50.08 seconds (32.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 6 5 4 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.100000000000e+01, gap 342.8571%

Wrote result file './lp_solutions/grafo1668.33.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 11:38:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1668.33.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/grafo1668.33.lp
Reading time = 0.11 seconds
: 59404 rows, 1495 columns, 179397 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 59404 rows, 1495 columns and 179397 nonzeros
Model fingerprint: 0x128cbfd4
Variable types: 38 continuous, 1457 integer (1457 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 17910 rows and 30 columns
Presolve time: 0.51s
Presolved: 41494 rows, 1465 columns, 126031 nonzeros
Variable types: 0 continuous, 1465 integer (1427 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 27602 rows, 15357 columns, 98247 nonzeros


Root relaxation: objective 3.100000e+01, 3048 iterations, 1.45 seconds (1.54 work units)
Total elapsed time = 5.48s (DegenMoves)

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

     0     0   31.00000    0  333    4.00000   31.00000   675%     -    6s
H    0     0                       5.0000000   31.00000   520%     -    6s
H    0     0                       6.0000000   31.00000   417%     -    6s
     0     0   31.00000    0  527    6.00000   31.00000   417%     -   11s
     0     0   31.00000    0  533    6.00000   31.00000   417%     -   11s
H    0     0                       7.0000000   31.00000   343%     -   13s
     0     0   31.00000    0  508    7.00000   31.00000   343%     -   24s
     0     0   31.00000    0  570    7.00000   31.00000   343%     -   25s
H    0     0                       8.0000000   31.00000   287%     -   43s
H    0     0                       9.0000000   31.00000   244%     -   43s
     0     0   31.00000    0  367    9.00000   31.00000   244%     -   43s
     0     0   31.00000    0  347    9.00000   31.00000   244%     -   44s
     0     0   31.00000    0  468    9.00000   31.00000   244%     -   50s

Cutting planes:
  Cover: 21
  Clique: 16
  MIR: 69
  StrongCG: 2
  GUB cover: 5
  Zero half: 47
  RLT: 50
  BQP: 1

Explored 1 nodes (54953 simplex iterations) in 50.03 seconds (43.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 9 8 7 ... 4

Time limit reached
Best objective 9.000000000000e+00, best bound 3.100000000000e+01, gap 244.4444%

Wrote result file './lp_solutions/grafo1668.33.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 04:41:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1668.33.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/grafo1668.33.lp
Reading time = 0.10 seconds
: 59404 rows, 1495 columns, 179397 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 59404 rows, 1495 columns and 179397 nonzeros
Model fingerprint: 0x128cbfd4
Variable types: 38 continuous, 1457 integer (1457 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 17910 rows and 30 columns
Presolve time: 0.42s
Presolved: 41494 rows, 1465 columns, 126031 nonzeros
Variable types: 0 continuous, 1465 integer (1427 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 27602 rows, 15357 columns, 98247 nonzeros


Root relaxation: objective 3.100000e+01, 3048 iterations, 1.44 seconds (1.54 work units)
Total elapsed time = 5.61s (DegenMoves)

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

     0     0   31.00000    0  333    4.00000   31.00000   675%     -    5s
H    0     0                       5.0000000   31.00000   520%     -    5s
H    0     0                       6.0000000   31.00000   417%     -    5s
     0     0   31.00000    0  527    6.00000   31.00000   417%     -   10s
     0     0   31.00000    0  533    6.00000   31.00000   417%     -   10s
H    0     0                       7.0000000   31.00000   343%     -   12s
     0     0   31.00000    0  508    7.00000   31.00000   343%     -   23s
     0     0   31.00000    0  570    7.00000   31.00000   343%     -   24s
H    0     0                       8.0000000   31.00000   287%     -   40s
H    0     0                       9.0000000   31.00000   244%     -   40s
     0     0   31.00000    0  367    9.00000   31.00000   244%     -   40s
     0     0   31.00000    0  347    9.00000   31.00000   244%     -   40s
     0     0   31.00000    0  385    9.00000   31.00000   244%     -   48s
     0     0   31.00000    0  400    9.00000   31.00000   244%     -   49s
     0     0          -    0         9.00000   31.00000   244%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 18
  Clique: 11
  MIR: 63
  StrongCG: 2
  Zero half: 61
  RLT: 47
  BQP: 1

Explored 1 nodes (59339 simplex iterations) in 50.04 seconds (47.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 9 8 7 ... 4

Time limit reached
Best objective 9.000000000000e+00, best bound 3.100000000000e+01, gap 244.4444%

Wrote result file './lp_solutions/grafo1668.33.sol'

