
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:41:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3111.48.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/grafo3111.48.lp
Reading time = 0.13 seconds
: 67256 rows, 2335 columns, 203432 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 67256 rows, 2335 columns and 203432 nonzeros
Model fingerprint: 0xcab22e8a
Variable types: 45 continuous, 2290 integer (2290 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 2806 rows and 30 columns
Presolve time: 0.78s
Presolved: 64450 rows, 2305 columns, 195322 nonzeros
Variable types: 0 continuous, 2305 integer (2260 binary)
Root relaxation presolved: 2305 rows, 66755 columns, 197627 nonzeros


Root relaxation: objective 3.000000e+01, 17759 iterations, 3.79 seconds (2.34 work units)
Total elapsed time = 12.29s (DegenMoves)
Total elapsed time = 15.05s (DegenMoves)

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

     0     0   30.00000    0  448          -   30.00000      -     -   15s
H    0     0                       7.0000000   30.00000   329%     -   18s
     0     0   30.00000    0  750    7.00000   30.00000   329%     -   30s
H    0     0                       9.0000000   30.00000   233%     -   31s
H    0     0                      13.0000000   30.00000   131%     -   31s
     0     0   30.00000    0  701   13.00000   30.00000   131%     -   32s
     0     0   30.00000    0  751   13.00000   30.00000   131%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 26
  Cover: 3
  Clique: 8
  MIR: 72
  StrongCG: 1
  Zero half: 24
  RLT: 34
  BQP: 2

Explored 1 nodes (44907 simplex iterations) in 50.10 seconds (29.81 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 9 7 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.000000000000e+01, gap 130.7692%

Wrote result file './lp_solutions/grafo3111.48.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:29:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3111.48.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/grafo3111.48.lp
Reading time = 0.10 seconds
: 67256 rows, 2335 columns, 203432 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 67256 rows, 2335 columns and 203432 nonzeros
Model fingerprint: 0xcab22e8a
Variable types: 45 continuous, 2290 integer (2290 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 2806 rows and 30 columns
Presolve time: 0.49s
Presolved: 64450 rows, 2305 columns, 195322 nonzeros
Variable types: 0 continuous, 2305 integer (2260 binary)
Root relaxation presolved: 2305 rows, 66755 columns, 197627 nonzeros


Root relaxation: objective 3.000000e+01, 17759 iterations, 2.56 seconds (2.34 work units)
Total elapsed time = 8.70s (DegenMoves)
Total elapsed time = 10.01s (DegenMoves)

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

     0     0   30.00000    0  448          -   30.00000      -     -   10s
H    0     0                       7.0000000   30.00000   329%     -   12s
     0     0   30.00000    0  750    7.00000   30.00000   329%     -   20s
H    0     0                       9.0000000   30.00000   233%     -   21s
H    0     0                      13.0000000   30.00000   131%     -   21s
     0     0   30.00000    0  701   13.00000   30.00000   131%     -   22s
     0     0   30.00000    0  278   13.00000   30.00000   131%     -   35s
     0     0   30.00000    0  273   13.00000   30.00000   131%     -   35s
     0     0   30.00000    0  393   13.00000   30.00000   131%     -   47s
     0     0   30.00000    0  340   13.00000   30.00000   131%     -   48s
     0     0          -    0        13.00000   30.00000   131%     -   50s

Cutting planes:
  Cover: 14
  Clique: 5
  MIR: 93
  GUB cover: 3
  Zero half: 27
  RLT: 38
  BQP: 2

Explored 1 nodes (63846 simplex iterations) in 50.09 seconds (44.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 9 7 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.000000000000e+01, gap 130.7692%

Wrote result file './lp_solutions/grafo3111.48.sol'

