
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:15:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10027.38.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/grafo10027.38.lp
Reading time = 0.62 seconds
: 158415 rows, 2153 columns, 477204 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 158415 rows, 2153 columns and 477204 nonzeros
Model fingerprint: 0xb32c361c
Variable types: 47 continuous, 2106 integer (2106 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 62903 rows and 21 columns
Presolve time: 2.21s
Presolved: 95512 rows, 2132 columns, 288792 nonzeros
Variable types: 0 continuous, 2132 integer (2085 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2126 rows, 97638 columns, 290924 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9462    4.8987829e+01   0.000000e+00   1.674354e+05      5s
   24376    4.2928334e+01   0.000000e+00   4.836630e+03     10s
   39256    4.2925469e+01   0.000000e+00   1.400415e+02     15s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00     17s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00     17s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.300000e+01, 44698 iterations, 14.15 seconds (6.71 work units)
Total elapsed time = 29.93s (DegenMoves)
Total elapsed time = 31.19s (DegenMoves)

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

     0     0   43.00000    0  397    7.00000   43.00000   514%     -   33s
H    0     0                      10.0000000   43.00000   330%     -   33s
     0     0          -    0        10.00000   43.00000   330%     -   50s

Cutting planes:
  Gomory: 30
  Cover: 43
  Clique: 33
  MIR: 142
  StrongCG: 7
  GUB cover: 5
  Zero half: 50
  RLT: 58
  BQP: 4

Explored 1 nodes (60159 simplex iterations) in 50.03 seconds (31.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.300000000000e+01, gap 330.0000%

Wrote result file './lp_solutions/grafo10027.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:35:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10027.38.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/grafo10027.38.lp
Reading time = 0.19 seconds
: 158415 rows, 2153 columns, 477204 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 158415 rows, 2153 columns and 477204 nonzeros
Model fingerprint: 0xb32c361c
Variable types: 47 continuous, 2106 integer (2106 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 62903 rows and 21 columns
Presolve time: 0.94s
Presolved: 95512 rows, 2132 columns, 288792 nonzeros
Variable types: 0 continuous, 2132 integer (2085 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2126 rows, 97638 columns, 290924 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   31096    4.2925975e+01   0.000000e+00   6.825287e+02      5s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00      7s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00      7s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.300000e+01, 44698 iterations, 5.98 seconds (6.71 work units)
Total elapsed time = 14.09s (DegenMoves)
Total elapsed time = 15.22s (DegenMoves)

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

     0     0   43.00000    0  397    7.00000   43.00000   514%     -   15s
H    0     0                      10.0000000   43.00000   330%     -   16s
     0     0   43.00000    0  778   10.00000   43.00000   330%     -   24s
     0     0   43.00000    0  704   10.00000   43.00000   330%     -   26s
     0     0   43.00000    0  438   10.00000   43.00000   330%     -   38s
     0     0   43.00000    0  473   10.00000   43.00000   330%     -   39s
     0     0   43.00000    0  636   10.00000   43.00000   330%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 34
  Clique: 21
  MIR: 140
  StrongCG: 5
  GUB cover: 3
  Zero half: 49
  RLT: 60

Explored 1 nodes (80837 simplex iterations) in 50.03 seconds (67.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.300000000000e+01, gap 330.0000%

Wrote result file './lp_solutions/grafo10027.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:19:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10027.38.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/grafo10027.38.lp
Reading time = 0.28 seconds
: 158415 rows, 2153 columns, 477204 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 158415 rows, 2153 columns and 477204 nonzeros
Model fingerprint: 0xb32c361c
Variable types: 47 continuous, 2106 integer (2106 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 62903 rows and 21 columns
Presolve time: 1.18s
Presolved: 95512 rows, 2132 columns, 288792 nonzeros
Variable types: 0 continuous, 2132 integer (2085 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2126 rows, 97638 columns, 290924 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21976    4.2930591e+01   0.000000e+00   2.250185e+04      5s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00     10s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00     10s
   44698    4.3000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.300000e+01, 44698 iterations, 8.23 seconds (6.71 work units)
Total elapsed time = 18.80s (DegenMoves)
Total elapsed time = 20.36s (DegenMoves)

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

     0     0   43.00000    0  397    7.00000   43.00000   514%     -   21s
H    0     0                      10.0000000   43.00000   330%     -   21s
     0     0   43.00000    0  778   10.00000   43.00000   330%     -   32s
     0     0   43.00000    0  704   10.00000   43.00000   330%     -   34s
     0     0   43.00000    0  556   10.00000   43.00000   330%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 1
  Cover: 10
  Clique: 28
  MIR: 125
  Zero half: 98
  RLT: 76
  BQP: 3

Explored 1 nodes (71393 simplex iterations) in 50.04 seconds (50.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.300000000000e+01, gap 330.0000%

Wrote result file './lp_solutions/grafo10027.38.sol'

