
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:24:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2905.47.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/grafo2905.47.lp
Reading time = 0.14 seconds
: 70936 rows, 2393 columns, 214653 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 70936 rows, 2393 columns and 214653 nonzeros
Model fingerprint: 0xe8013b51
Variable types: 47 continuous, 2346 integer (2346 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 4076 rows and 34 columns
Presolve time: 0.74s
Presolved: 66860 rows, 2359 columns, 202734 nonzeros
Variable types: 0 continuous, 2359 integer (2312 binary)
Root relaxation presolved: 2359 rows, 69219 columns, 205093 nonzeros


Root relaxation: objective 3.300000e+01, 16235 iterations, 3.48 seconds (1.97 work units)
Total elapsed time = 8.48s (DegenMoves)

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

     0     0   33.00000    0  362          -   33.00000      -     -   10s
H    0     0                       8.0000000   33.00000   312%     -   13s
     0     0   33.00000    0  669    8.00000   33.00000   312%     -   22s
H    0     0                      12.0000000   33.00000   175%     -   23s
     0     0   33.00000    0  664   12.00000   33.00000   175%     -   23s
     0     0   33.00000    0  353   12.00000   33.00000   175%     -   39s
H    0     0                      13.0000000   33.00000   154%     -   39s
     0     0   33.00000    0  306   13.00000   33.00000   154%     -   40s
     0     0   33.00000    0  155   13.00000   33.00000   154%     -   46s
H    0     0                      16.0000000   33.00000   106%     -   46s
     0     0   33.00000    0  210   16.00000   33.00000   106%     -   46s
     0     0   33.00000    0  443   16.00000   33.00000   106%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 17
  Clique: 3
  MIR: 110
  GUB cover: 11
  Zero half: 16
  RLT: 44
  Relax-and-lift: 1
  BQP: 2

Explored 1 nodes (49181 simplex iterations) in 50.10 seconds (27.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 16 13 12 8 

Time limit reached
Best objective 1.600000000000e+01, best bound 3.300000000000e+01, gap 106.2500%

Wrote result file './lp_solutions/grafo2905.47.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:12:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2905.47.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/grafo2905.47.lp
Reading time = 0.11 seconds
: 70936 rows, 2393 columns, 214653 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 70936 rows, 2393 columns and 214653 nonzeros
Model fingerprint: 0xe8013b51
Variable types: 47 continuous, 2346 integer (2346 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 4076 rows and 34 columns
Presolve time: 0.48s
Presolved: 66860 rows, 2359 columns, 202734 nonzeros
Variable types: 0 continuous, 2359 integer (2312 binary)
Root relaxation presolved: 2359 rows, 69219 columns, 205093 nonzeros


Root relaxation: objective 3.300000e+01, 16235 iterations, 2.20 seconds (1.97 work units)
Total elapsed time = 5.51s (DegenMoves)

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

     0     0   33.00000    0  362          -   33.00000      -     -    6s
H    0     0                       8.0000000   33.00000   312%     -    8s
     0     0   33.00000    0  669    8.00000   33.00000   312%     -   14s
H    0     0                      12.0000000   33.00000   175%     -   15s
     0     0   33.00000    0  664   12.00000   33.00000   175%     -   15s
     0     0   33.00000    0  353   12.00000   33.00000   175%     -   26s
H    0     0                      13.0000000   33.00000   154%     -   26s
     0     0   33.00000    0  306   13.00000   33.00000   154%     -   27s
     0     0   33.00000    0  155   13.00000   33.00000   154%     -   30s
H    0     0                      16.0000000   33.00000   106%     -   30s
     0     0   33.00000    0  210   16.00000   33.00000   106%     -   31s
     0     0   33.00000    0  280   16.00000   33.00000   106%     -   39s
     0     0   33.00000    0  273   16.00000   33.00000   106%     -   39s
     0     0   33.00000    0  312   16.00000   33.00000   106%     -   47s
H    0     0                      18.0000000   33.00000  83.3%     -   48s
     0     0   33.00000    0  308   18.00000   33.00000  83.3%     -   48s
     0     0          -    0        18.00000   33.00000  83.3%     -   50s

Cutting planes:
  Cover: 19
  Clique: 3
  MIR: 89
  StrongCG: 2
  GUB cover: 6
  Zero half: 18
  RLT: 55
  Relax-and-lift: 1
  BQP: 3

Explored 1 nodes (70041 simplex iterations) in 50.08 seconds (43.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 18 16 13 ... 8

Time limit reached
Best objective 1.800000000000e+01, best bound 3.300000000000e+01, gap 83.3333%

Wrote result file './lp_solutions/grafo2905.47.sol'

