
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:21:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2848.40.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/grafo2848.40.lp
Reading time = 0.10 seconds
: 56082 rows, 1778 columns, 169453 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 56082 rows, 1778 columns and 169453 nonzeros
Model fingerprint: 0x7bbd4ff1
Variable types: 39 continuous, 1739 integer (1739 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 10736 rows and 34 columns
Presolve time: 0.56s
Presolved: 45346 rows, 1744 columns, 137595 nonzeros
Variable types: 0 continuous, 1744 integer (1705 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 26327 rows, 20763 columns, 99557 nonzeros


Root relaxation: objective 3.700000e+01, 2340 iterations, 1.26 seconds (0.78 work units)

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

     0     0   37.00000    0  447    7.00000   37.00000   429%     -    5s
H    0     0                       9.0000000   37.00000   311%     -    5s
H    0     0                      10.0000000   37.00000   270%     -    8s
     0     0   37.00000    0  575   10.00000   37.00000   270%     -   13s
H    0     0                      11.0000000   37.00000   236%     -   13s
     0     0   37.00000    0  565   11.00000   37.00000   236%     -   14s
H    0     0                      12.0000000   37.00000   208%     -   41s
H    0     0                      13.0000000   37.00000   185%     -   41s
     0     0   37.00000    0  498   13.00000   37.00000   185%     -   41s
     0     0   37.00000    0  471   13.00000   37.00000   185%     -   41s
     0     0   37.00000    0  603   13.00000   37.00000   185%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 30
  Clique: 3
  MIR: 135
  StrongCG: 2
  GUB cover: 4
  Zero half: 50
  RLT: 61

Explored 1 nodes (40454 simplex iterations) in 50.07 seconds (32.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 11 ... 1

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

Wrote result file './lp_solutions/grafo2848.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:59:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2848.40.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/grafo2848.40.lp
Reading time = 0.09 seconds
: 56082 rows, 1778 columns, 169453 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 56082 rows, 1778 columns and 169453 nonzeros
Model fingerprint: 0x7bbd4ff1
Variable types: 39 continuous, 1739 integer (1739 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 10736 rows and 34 columns
Presolve time: 0.38s
Presolved: 45346 rows, 1744 columns, 137595 nonzeros
Variable types: 0 continuous, 1744 integer (1705 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 26327 rows, 20763 columns, 99557 nonzeros


Root relaxation: objective 3.700000e+01, 2340 iterations, 0.79 seconds (0.78 work units)

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

     0     0   37.00000    0  447    7.00000   37.00000   429%     -    3s
H    0     0                       9.0000000   37.00000   311%     -    3s
H    0     0                      10.0000000   37.00000   270%     -    5s
     0     0   37.00000    0  575   10.00000   37.00000   270%     -    8s
H    0     0                      11.0000000   37.00000   236%     -    9s
     0     0   37.00000    0  565   11.00000   37.00000   236%     -    9s
H    0     0                      12.0000000   37.00000   208%     -   29s
H    0     0                      13.0000000   37.00000   185%     -   29s
     0     0   37.00000    0  498   13.00000   37.00000   185%     -   29s
     0     0   37.00000    0  471   13.00000   37.00000   185%     -   29s
H    0     0                      14.0000000   37.00000   164%     -   45s
H    0     0                      15.0000000   37.00000   147%     -   45s
     0     0   37.00000    0  463   15.00000   37.00000   147%     -   45s
     0     0   37.00000    0  476   15.00000   37.00000   147%     -   47s
     0     0          -    0        15.00000   37.00000   147%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 18
  Clique: 8
  MIR: 151
  StrongCG: 3
  GUB cover: 2
  Zero half: 38
  RLT: 49

Explored 1 nodes (57108 simplex iterations) in 50.08 seconds (47.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 15 14 13 ... 1

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

Wrote result file './lp_solutions/grafo2848.40.sol'

