
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:46:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7437.44.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/grafo7437.44.lp
Reading time = 0.13 seconds
: 62800 rows, 2195 columns, 190093 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 62800 rows, 2195 columns and 190093 nonzeros
Model fingerprint: 0xbd76ef9f
Variable types: 46 continuous, 2149 integer (2149 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 3818 rows and 0 columns
Presolve time: 0.64s
Presolved: 58982 rows, 2195 columns, 178921 nonzeros
Variable types: 0 continuous, 2195 integer (2149 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2150 rows, 61132 columns, 181116 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18968    3.1954976e+01   0.000000e+00   2.234419e+03      5s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      9s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      9s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 3.200000e+01, 32117 iterations, 7.76 seconds (4.85 work units)
Total elapsed time = 18.18s (DegenMoves)

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

     0     0   32.00000    0  388    6.00000   32.00000   433%     -   19s
H    0     0                       7.0000000   32.00000   357%     -   19s
H    0     0                       8.0000000   32.00000   300%     -   21s
     0     0   32.00000    0  673    8.00000   32.00000   300%     -   26s
     0     0   32.00000    0  669    8.00000   32.00000   300%     -   27s
     0     0   32.00000    0  381    8.00000   32.00000   300%     -   48s
H    0     0                       9.0000000   32.00000   256%     -   48s
     0     0   32.00000    0  351    9.00000   32.00000   256%     -   49s

Cutting planes:
  Gomory: 2
  Lift-and-project: 2
  Cover: 36
  MIR: 132
  Zero half: 2
  RLT: 29

Explored 1 nodes (59971 simplex iterations) in 50.10 seconds (29.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.200000000000e+01, gap 255.5556%

Wrote result file './lp_solutions/grafo7437.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:11:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7437.44.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/grafo7437.44.lp
Reading time = 0.13 seconds
: 62800 rows, 2195 columns, 190093 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 62800 rows, 2195 columns and 190093 nonzeros
Model fingerprint: 0xbd76ef9f
Variable types: 46 continuous, 2149 integer (2149 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 3818 rows and 0 columns
Presolve time: 0.46s
Presolved: 58982 rows, 2195 columns, 178921 nonzeros
Variable types: 0 continuous, 2195 integer (2149 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2150 rows, 61132 columns, 181116 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20120    3.1954145e+01   0.000000e+00   2.613993e+03      5s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      8s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      8s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 3.200000e+01, 32117 iterations, 7.77 seconds (4.85 work units)
Total elapsed time = 18.22s (DegenMoves)

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

     0     0   32.00000    0  388    6.00000   32.00000   433%     -   19s
H    0     0                       7.0000000   32.00000   357%     -   19s
H    0     0                       8.0000000   32.00000   300%     -   21s
     0     0   32.00000    0  673    8.00000   32.00000   300%     -   26s
     0     0   32.00000    0  669    8.00000   32.00000   300%     -   27s
     0     0   32.00000    0  381    8.00000   32.00000   300%     -   48s
H    0     0                       9.0000000   32.00000   256%     -   49s
     0     0   32.00000    0  351    9.00000   32.00000   256%     -   49s

Cutting planes:
  Gomory: 2
  Lift-and-project: 2
  Cover: 36
  MIR: 133
  Zero half: 2
  RLT: 29

Explored 1 nodes (59971 simplex iterations) in 50.10 seconds (29.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.200000000000e+01, gap 255.5556%

Wrote result file './lp_solutions/grafo7437.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:14:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7437.44.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/grafo7437.44.lp
Reading time = 0.12 seconds
: 62800 rows, 2195 columns, 190093 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 62800 rows, 2195 columns and 190093 nonzeros
Model fingerprint: 0xbd76ef9f
Variable types: 46 continuous, 2149 integer (2149 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 3818 rows and 0 columns
Presolve time: 0.40s
Presolved: 58982 rows, 2195 columns, 178921 nonzeros
Variable types: 0 continuous, 2195 integer (2149 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2150 rows, 61132 columns, 181116 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24152    3.1952990e+01   0.000000e+00   1.109605e+03      5s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      7s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      7s
   32117    3.2000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 3.200000e+01, 32117 iterations, 6.46 seconds (4.85 work units)
Total elapsed time = 15.94s (DegenMoves)

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

     0     0   32.00000    0  388    6.00000   32.00000   433%     -   17s
H    0     0                       7.0000000   32.00000   357%     -   17s
H    0     0                       8.0000000   32.00000   300%     -   18s
     0     0   32.00000    0  673    8.00000   32.00000   300%     -   22s
     0     0   32.00000    0  669    8.00000   32.00000   300%     -   23s
     0     0   32.00000    0  381    8.00000   32.00000   300%     -   41s
H    0     0                       9.0000000   32.00000   256%     -   41s
     0     0   32.00000    0  351    9.00000   32.00000   256%     -   42s
     0     0   32.00000    0  530    9.00000   32.00000   256%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 2
  Cover: 34
  MIR: 132
  Zero half: 22
  RLT: 66

Explored 1 nodes (65932 simplex iterations) in 50.06 seconds (33.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.200000000000e+01, gap 255.5556%

Wrote result file './lp_solutions/grafo7437.44.sol'

