
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:00:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1265.46.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/grafo1265.46.lp
Reading time = 0.13 seconds
: 71922 rows, 2096 columns, 217133 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 71922 rows, 2096 columns and 217133 nonzeros
Model fingerprint: 0x95c58432
Variable types: 41 continuous, 2055 integer (2055 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 11595 rows and 34 columns
Presolve time: 0.78s
Presolved: 60327 rows, 2062 columns, 182665 nonzeros
Variable types: 0 continuous, 2062 integer (2021 binary)
Root relaxation presolved: 2062 rows, 62389 columns, 184727 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19305    3.3000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 3.300000e+01, 19305 iterations, 4.02 seconds (2.43 work units)
Total elapsed time = 13.29s (DegenMoves)
Total elapsed time = 16.82s (DegenMoves)

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

     0     0   33.00000    0  502          -   33.00000      -     -   18s
H    0     0                       9.0000000   33.00000   267%     -   19s
     0     0   33.00000    0  613    9.00000   33.00000   267%     -   30s
H    0     0                      10.0000000   33.00000   230%     -   31s
     0     0   33.00000    0  545   10.00000   33.00000   230%     -   33s
     0     0   33.00000    0  426   10.00000   33.00000   230%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 35
  Cover: 9
  Clique: 9
  MIR: 81
  StrongCG: 1
  GUB cover: 5
  Zero half: 26
  RLT: 56

Explored 1 nodes (50311 simplex iterations) in 50.09 seconds (32.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 9 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.300000000000e+01, gap 230.0000%

Wrote result file './lp_solutions/grafo1265.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:50:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1265.46.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/grafo1265.46.lp
Reading time = 0.11 seconds
: 71922 rows, 2096 columns, 217133 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 71922 rows, 2096 columns and 217133 nonzeros
Model fingerprint: 0x95c58432
Variable types: 41 continuous, 2055 integer (2055 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 11595 rows and 34 columns
Presolve time: 0.50s
Presolved: 60327 rows, 2062 columns, 182665 nonzeros
Variable types: 0 continuous, 2062 integer (2021 binary)
Root relaxation presolved: 2062 rows, 62389 columns, 184727 nonzeros


Root relaxation: objective 3.300000e+01, 19305 iterations, 2.69 seconds (2.43 work units)
Total elapsed time = 9.33s (DegenMoves)
Total elapsed time = 11.81s (DegenMoves)

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

     0     0   33.00000    0  502          -   33.00000      -     -   13s
H    0     0                       9.0000000   33.00000   267%     -   13s
     0     0   33.00000    0  613    9.00000   33.00000   267%     -   19s
H    0     0                      10.0000000   33.00000   230%     -   20s
     0     0   33.00000    0  545   10.00000   33.00000   230%     -   21s
H    0     0                      12.0000000   33.00000   175%     -   34s
     0     0   33.00000    0  349   12.00000   33.00000   175%     -   34s
     0     0   33.00000    0  331   12.00000   33.00000   175%     -   35s
     0     0   33.00000    0  473   12.00000   33.00000   175%     -   50s

Cutting planes:
  Cover: 1
  Clique: 3
  MIR: 14
  Zero half: 1
  RLT: 10
  BQP: 2

Explored 1 nodes (69561 simplex iterations) in 50.12 seconds (50.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 10 9 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.300000000000e+01, gap 175.0000%

Wrote result file './lp_solutions/grafo1265.46.sol'

