
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:52:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2322.42.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/grafo2322.42.lp
Reading time = 0.13 seconds
: 61287 rows, 1972 columns, 185282 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 61287 rows, 1972 columns and 185282 nonzeros
Model fingerprint: 0x7f39d8a1
Variable types: 42 continuous, 1930 integer (1930 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 9232 rows and 30 columns
Presolve time: 0.58s
Presolved: 52055 rows, 1942 columns, 157896 nonzeros
Variable types: 0 continuous, 1942 integer (1900 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 29095 rows, 24902 columns, 111976 nonzeros


Root relaxation: objective 3.900000e+01, 3121 iterations, 1.74 seconds (1.07 work units)
Total elapsed time = 5.04s (DegenMoves)

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

     0     0   39.00000    0  413    3.00000   39.00000  1200%     -    5s
H    0     0                       5.0000000   39.00000   680%     -    5s
H    0     0                       7.0000000   39.00000   457%     -    5s
H    0     0                       8.0000000   39.00000   387%     -    7s
     0     0   39.00000    0  778    8.00000   39.00000   387%     -   17s
     0     0   39.00000    0  800    8.00000   39.00000   387%     -   18s
     0     0   39.00000    0  627    8.00000   39.00000   387%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 7
  Clique: 7
  MIR: 162
  StrongCG: 1
  Zero half: 76
  RLT: 68
  BQP: 1

Explored 1 nodes (36343 simplex iterations) in 50.09 seconds (32.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 8 7 5 3 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.900000000000e+01, gap 387.5000%

Wrote result file './lp_solutions/grafo2322.42.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:16:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2322.42.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/grafo2322.42.lp
Reading time = 0.10 seconds
: 61287 rows, 1972 columns, 185282 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 61287 rows, 1972 columns and 185282 nonzeros
Model fingerprint: 0x7f39d8a1
Variable types: 42 continuous, 1930 integer (1930 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 9232 rows and 30 columns
Presolve time: 0.40s
Presolved: 52055 rows, 1942 columns, 157896 nonzeros
Variable types: 0 continuous, 1942 integer (1900 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 29095 rows, 24902 columns, 111976 nonzeros


Root relaxation: objective 3.900000e+01, 3121 iterations, 1.12 seconds (1.07 work units)

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

     0     0   39.00000    0  413    3.00000   39.00000  1200%     -    3s
H    0     0                       5.0000000   39.00000   680%     -    3s
H    0     0                       7.0000000   39.00000   457%     -    3s
H    0     0                       8.0000000   39.00000   387%     -    4s
     0     0   39.00000    0  778    8.00000   39.00000   387%     -   11s
     0     0   39.00000    0  800    8.00000   39.00000   387%     -   12s
H    0     0                       9.0000000   39.00000   333%     -   38s
H    0     0                      10.0000000   39.00000   290%     -   38s
     0     0   39.00000    0  627   10.00000   39.00000   290%     -   39s
     0     0   39.00000    0  612   10.00000   39.00000   290%     -   41s
     0     0   39.00000    0  782   10.00000   39.00000   290%     -   50s

Cutting planes:
  Cover: 23
  Clique: 4
  MIR: 134
  StrongCG: 1
  GUB cover: 1
  Zero half: 66
  RLT: 69
  BQP: 1

Explored 1 nodes (49160 simplex iterations) in 50.06 seconds (47.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 10 9 8 ... 3

Time limit reached
Best objective 1.000000000000e+01, best bound 3.900000000000e+01, gap 290.0000%

Wrote result file './lp_solutions/grafo2322.42.sol'

