
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:55:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2398.37.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/grafo2398.37.lp
Reading time = 0.14 seconds
: 64836 rows, 1868 columns, 196058 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 64836 rows, 1868 columns and 196058 nonzeros
Model fingerprint: 0xfcbac5ef
Variable types: 44 continuous, 1824 integer (1824 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 2.0000000
Presolve removed 13253 rows and 45 columns
Presolve time: 0.66s
Presolved: 51583 rows, 1823 columns, 156709 nonzeros
Variable types: 0 continuous, 1823 integer (1779 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1820 rows, 53403 columns, 158532 nonzeros


Root relaxation: objective 3.400000e+01, 1258 iterations, 0.55 seconds (0.22 work units)

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

     0     0   34.00000    0  246    4.00000   34.00000   750%     -    3s
H    0     0                       5.0000000   34.00000   580%     -    3s
H    0     0                       7.0000000   34.00000   386%     -    3s
     0     0   34.00000    0  579    7.00000   34.00000   386%     -    9s
H    0     0                       8.0000000   34.00000   325%     -    9s
     0     0   34.00000    0  514    8.00000   34.00000   325%     -   10s
H    0     0                       9.0000000   34.00000   278%     -   32s
     0     0   34.00000    0  528    9.00000   34.00000   278%     -   32s
H    0     0                      10.0000000   34.00000   240%     -   33s
     0     0   34.00000    0  473   10.00000   34.00000   240%     -   34s
     0     0   34.00000    0  577   10.00000   34.00000   240%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 21
  Clique: 5
  MIR: 129
  StrongCG: 1
  GUB cover: 2
  Zero half: 29
  RLT: 37

Explored 1 nodes (37342 simplex iterations) in 50.09 seconds (32.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 10 9 8 ... 2

Time limit reached
Best objective 1.000000000000e+01, best bound 3.400000000000e+01, gap 240.0000%

Wrote result file './lp_solutions/grafo2398.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:20:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2398.37.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/grafo2398.37.lp
Reading time = 0.11 seconds
: 64836 rows, 1868 columns, 196058 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 64836 rows, 1868 columns and 196058 nonzeros
Model fingerprint: 0xfcbac5ef
Variable types: 44 continuous, 1824 integer (1824 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 2.0000000
Presolve removed 13253 rows and 45 columns
Presolve time: 0.45s
Presolved: 51583 rows, 1823 columns, 156709 nonzeros
Variable types: 0 continuous, 1823 integer (1779 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1820 rows, 53403 columns, 158532 nonzeros


Root relaxation: objective 3.400000e+01, 1258 iterations, 0.27 seconds (0.22 work units)

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

     0     0   34.00000    0  246    4.00000   34.00000   750%     -    2s
H    0     0                       5.0000000   34.00000   580%     -    2s
H    0     0                       7.0000000   34.00000   386%     -    2s
     0     0   34.00000    0  579    7.00000   34.00000   386%     -    6s
H    0     0                       8.0000000   34.00000   325%     -    6s
     0     0   34.00000    0  514    8.00000   34.00000   325%     -    6s
H    0     0                       9.0000000   34.00000   278%     -   23s
     0     0   34.00000    0  528    9.00000   34.00000   278%     -   23s
H    0     0                      10.0000000   34.00000   240%     -   23s
     0     0   34.00000    0  473   10.00000   34.00000   240%     -   24s
H    0     0                      11.0000000   34.00000   209%     -   36s
H    0     0                      12.0000000   34.00000   183%     -   36s
     0     0   34.00000    0  577   12.00000   34.00000   183%     -   36s
     0     0   34.00000    0  506   12.00000   34.00000   183%     -   37s
     0     0   34.00000    0  466   12.00000   34.00000   183%     -   47s
     0     0          -    0        12.00000   34.00000   183%     -   50s

Cutting planes:
  Cover: 9
  Clique: 4
  MIR: 54
  StrongCG: 2
  Zero half: 2
  RLT: 25

Explored 1 nodes (52920 simplex iterations) in 50.05 seconds (47.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 12 11 10 ... 2

Time limit reached
Best objective 1.200000000000e+01, best bound 3.400000000000e+01, gap 183.3333%

Wrote result file './lp_solutions/grafo2398.37.sol'

