
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:57:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3033.38.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/grafo3033.38.lp
Reading time = 0.10 seconds
: 59328 rows, 1891 columns, 179529 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 59328 rows, 1891 columns and 179529 nonzeros
Model fingerprint: 0xdf3b387b
Variable types: 42 continuous, 1849 integer (1849 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 11252 rows and 18 columns
Presolve time: 0.41s
Presolved: 48076 rows, 1873 columns, 146201 nonzeros
Variable types: 0 continuous, 1873 integer (1831 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 28160 rows, 21789 columns, 106369 nonzeros


Root relaxation: objective 3.800000e+01, 1339 iterations, 0.39 seconds (0.34 work units)

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

     0     0   38.00000    0  360    9.00000   38.00000   322%     -    1s
H    0     0                      10.0000000   38.00000   280%     -    2s
H    0     0                      11.0000000   38.00000   245%     -    5s
     0     0   38.00000    0  522   11.00000   38.00000   245%     -    5s
H    0     0                      12.0000000   38.00000   217%     -    5s
     0     0   37.50000    0  492   12.00000   37.50000   213%     -    5s
H    0     0                      13.0000000   37.00000   185%     -   19s
H    0     0                      14.0000000   37.00000   164%     -   19s
H    0     0                      15.0000000   37.00000   147%     -   19s
     0     0   37.00000    0  291   15.00000   37.00000   147%     -   19s
     0     0   37.00000    0  440   15.00000   37.00000   147%     -   20s
H    0     0                      16.0000000   37.00000   131%     -   33s
     0     0   37.00000    0  483   16.00000   37.00000   131%     -   33s
     0     0   37.00000    0  488   16.00000   37.00000   131%     -   34s
H    0     0                      17.0000000   37.00000   118%     -   47s
     0     0   37.00000    0  398   17.00000   37.00000   118%     -   47s
     0     0   37.00000    0  346   17.00000   37.00000   118%     -   48s
     0     0          -    0        17.00000   37.00000   118%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 19
  Clique: 10
  MIR: 111
  StrongCG: 1
  GUB cover: 2
  Zero half: 45
  RLT: 56
  BQP: 3
  PSD: 1

Explored 1 nodes (50881 simplex iterations) in 50.07 seconds (38.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 17 16 15 ... 9

Time limit reached
Best objective 1.700000000000e+01, best bound 3.700000000000e+01, gap 117.6471%

Wrote result file './lp_solutions/grafo3033.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:41:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3033.38.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/grafo3033.38.lp
Reading time = 0.09 seconds
: 59328 rows, 1891 columns, 179529 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 59328 rows, 1891 columns and 179529 nonzeros
Model fingerprint: 0xdf3b387b
Variable types: 42 continuous, 1849 integer (1849 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 11252 rows and 18 columns
Presolve time: 0.37s
Presolved: 48076 rows, 1873 columns, 146201 nonzeros
Variable types: 0 continuous, 1873 integer (1831 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 28160 rows, 21789 columns, 106369 nonzeros


Root relaxation: objective 3.800000e+01, 1339 iterations, 0.39 seconds (0.34 work units)

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

     0     0   38.00000    0  360    9.00000   38.00000   322%     -    1s
H    0     0                      10.0000000   38.00000   280%     -    2s
H    0     0                      11.0000000   38.00000   245%     -    4s
     0     0   38.00000    0  522   11.00000   38.00000   245%     -    4s
H    0     0                      12.0000000   38.00000   217%     -    5s
     0     0   37.50000    0  492   12.00000   37.50000   213%     -    5s
H    0     0                      13.0000000   37.00000   185%     -   17s
H    0     0                      14.0000000   37.00000   164%     -   17s
H    0     0                      15.0000000   37.00000   147%     -   17s
     0     0   37.00000    0  291   15.00000   37.00000   147%     -   17s
     0     0   37.00000    0  440   15.00000   37.00000   147%     -   18s
H    0     0                      16.0000000   37.00000   131%     -   28s
     0     0   37.00000    0  483   16.00000   37.00000   131%     -   28s
     0     0   37.00000    0  488   16.00000   37.00000   131%     -   29s
H    0     0                      17.0000000   37.00000   118%     -   40s
     0     0   37.00000    0  398   17.00000   37.00000   118%     -   40s
     0     0   37.00000    0  346   17.00000   37.00000   118%     -   40s
     0     0   37.00000    0  446   17.00000   37.00000   118%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 19
  Clique: 10
  MIR: 111
  StrongCG: 1
  GUB cover: 2
  Zero half: 45
  RLT: 56
  BQP: 3
  PSD: 1

Explored 1 nodes (62097 simplex iterations) in 50.05 seconds (47.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 17 16 15 ... 9

Time limit reached
Best objective 1.700000000000e+01, best bound 3.700000000000e+01, gap 117.6471%

Wrote result file './lp_solutions/grafo3033.38.sol'

