
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:32:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6992.45.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/grafo6992.45.lp
Reading time = 0.33 seconds
: 100824 rows, 2953 columns, 305329 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 100824 rows, 2953 columns and 305329 nonzeros
Model fingerprint: 0x7b2026ae
Variable types: 58 continuous, 2895 integer (2895 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, 6e+01]
Presolve removed 6798 rows and 0 columns
Presolve time: 0.91s
Presolved: 94026 rows, 2953 columns, 285250 nonzeros
Variable types: 0 continuous, 2953 integer (2895 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2914 rows, 96940 columns, 288203 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10976    5.0956012e+01   0.000000e+00   1.553450e+05      5s
   24407    5.0933074e+01   0.000000e+00   1.084393e+04     10s
   36621    5.0928670e+01   0.000000e+00   3.816312e+03     15s
   48017    5.0927776e+01   0.000000e+00   7.183079e+01     20s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     21s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     21s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 5.100000e+01, 49735 iterations, 19.88 seconds (10.85 work units)

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

     0     0   51.00000    0 1412    9.00000   51.00000   467%     -   50s

Explored 1 nodes (63818 simplex iterations) in 50.05 seconds (31.78 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.100000000000e+01, gap 466.6667%

Wrote result file './lp_solutions/grafo6992.45.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:12:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6992.45.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/grafo6992.45.lp
Reading time = 0.20 seconds
: 100824 rows, 2953 columns, 305329 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 100824 rows, 2953 columns and 305329 nonzeros
Model fingerprint: 0x7b2026ae
Variable types: 58 continuous, 2895 integer (2895 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, 6e+01]
Presolve removed 6798 rows and 0 columns
Presolve time: 0.77s
Presolved: 94026 rows, 2953 columns, 285250 nonzeros
Variable types: 0 continuous, 2953 integer (2895 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2914 rows, 96940 columns, 288203 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13825    5.0948055e+01   0.000000e+00   5.515818e+04      5s
   27256    5.0931254e+01   0.000000e+00   1.369028e+04     10s
   38656    5.0928335e+01   0.000000e+00   7.522735e+02     15s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     20s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     20s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 5.100000e+01, 49735 iterations, 18.79 seconds (10.85 work units)
Total elapsed time = 20.26s (DegenMoves)

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

     0     0   51.00000    0 1412    9.00000   51.00000   467%     -   50s

Explored 1 nodes (63989 simplex iterations) in 50.06 seconds (31.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.100000000000e+01, gap 466.6667%

Wrote result file './lp_solutions/grafo6992.45.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:15:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6992.45.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/grafo6992.45.lp
Reading time = 0.18 seconds
: 100824 rows, 2953 columns, 305329 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 100824 rows, 2953 columns and 305329 nonzeros
Model fingerprint: 0x7b2026ae
Variable types: 58 continuous, 2895 integer (2895 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, 6e+01]
Presolve removed 6798 rows and 0 columns
Presolve time: 0.67s
Presolved: 94026 rows, 2953 columns, 285250 nonzeros
Variable types: 0 continuous, 2953 integer (2895 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2914 rows, 96940 columns, 288203 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15453    5.0944082e+01   0.000000e+00   4.784424e+05      5s
   29698    5.0930248e+01   0.000000e+00   7.417617e+03     10s
   42726    5.0927958e+01   0.000000e+00   5.563771e+02     15s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     18s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     18s
   49735    5.1000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 5.100000e+01, 49735 iterations, 16.96 seconds (10.85 work units)
Total elapsed time = 47.84s (DegenMoves)

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

     0     0   51.00000    0 1046    9.00000   51.00000   467%     -   50s

Explored 1 nodes (68728 simplex iterations) in 50.04 seconds (37.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.100000000000e+01, gap 466.6667%

Wrote result file './lp_solutions/grafo6992.45.sol'

