
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:38:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10089.37.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/grafo10089.37.lp
Reading time = 0.43 seconds
: 71400 rows, 2046 columns, 216019 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 71400 rows, 2046 columns and 216019 nonzeros
Model fingerprint: 0xb758d9b3
Variable types: 47 continuous, 1999 integer (1999 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]
Found heuristic solution: objective 2.0000000
Presolve removed 13843 rows and 42 columns
Presolve time: 1.15s
Presolved: 57557 rows, 2004 columns, 175012 nonzeros
Variable types: 0 continuous, 2004 integer (1957 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2001 rows, 59558 columns, 177016 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11027    3.8942981e+01   0.000000e+00   1.524577e+04      5s
   23737    3.8924032e+01   0.000000e+00   9.027181e+03     10s
   36760    3.8921348e+01   0.000000e+00   1.630584e+02     15s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00     17s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00     17s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 3.900000e+01, 41528 iterations, 15.55 seconds (6.00 work units)
Total elapsed time = 42.93s (DegenMoves)
Total elapsed time = 48.41s (DegenMoves)

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

     0     0   39.00000    0  759    7.00000   39.00000   457%     -   50s

Explored 1 nodes (55429 simplex iterations) in 50.02 seconds (22.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 2 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.900000000000e+01, gap 457.1429%

Wrote result file './lp_solutions/grafo10089.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 10:40:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10089.37.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/grafo10089.37.lp
Reading time = 0.14 seconds
: 71400 rows, 2046 columns, 216019 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 71400 rows, 2046 columns and 216019 nonzeros
Model fingerprint: 0xb758d9b3
Variable types: 47 continuous, 1999 integer (1999 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]
Found heuristic solution: objective 2.0000000
Presolve removed 13843 rows and 42 columns
Presolve time: 0.54s
Presolved: 57557 rows, 2004 columns, 175012 nonzeros
Variable types: 0 continuous, 2004 integer (1957 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2001 rows, 59558 columns, 177016 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24357    3.8923710e+01   0.000000e+00   8.408381e+02      5s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00      9s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00      9s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 3.900000e+01, 41528 iterations, 8.06 seconds (6.00 work units)
Total elapsed time = 21.24s (DegenMoves)
Total elapsed time = 26.46s (DegenMoves)

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

     0     0   39.00000    0  713    7.00000   39.00000   457%     -   30s
H    0     0                       9.0000000   39.00000   333%     -   30s
     0     0          -    0         9.00000   39.00000   333%     -   50s

Cutting planes:
  Gomory: 20
  Cover: 7
  Clique: 14
  MIR: 76
  GUB cover: 4
  Zero half: 27
  RLT: 49
  BQP: 3

Explored 1 nodes (69797 simplex iterations) in 50.07 seconds (42.71 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 7 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo10089.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 01:52:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10089.37.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/grafo10089.37.lp
Reading time = 0.16 seconds
: 71400 rows, 2046 columns, 216019 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 71400 rows, 2046 columns and 216019 nonzeros
Model fingerprint: 0xb758d9b3
Variable types: 47 continuous, 1999 integer (1999 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]
Found heuristic solution: objective 2.0000000
Presolve removed 13843 rows and 42 columns
Presolve time: 0.72s
Presolved: 57557 rows, 2004 columns, 175012 nonzeros
Variable types: 0 continuous, 2004 integer (1957 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2001 rows, 59558 columns, 177016 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18777    3.8927838e+01   0.000000e+00   8.002110e+03      5s
   38943    3.8921289e+01   0.000000e+00   2.284893e+02     10s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00     11s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00     11s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 3.900000e+01, 41528 iterations, 10.02 seconds (6.00 work units)
Total elapsed time = 24.55s (DegenMoves)
Total elapsed time = 27.81s (DegenMoves)
Total elapsed time = 30.71s (DegenMoves)

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

     0     0   39.00000    0  713    7.00000   39.00000   457%     -   35s
H    0     0                       9.0000000   39.00000   333%     -   35s
     0     0          -    0         9.00000   39.00000   333%     -   50s

Cutting planes:
  Gomory: 20
  Cover: 7
  Clique: 14
  MIR: 76
  GUB cover: 4
  Zero half: 27
  RLT: 49
  BQP: 3

Explored 1 nodes (65808 simplex iterations) in 50.07 seconds (37.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 7 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo10089.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:56:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10089.37.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/grafo10089.37.lp
Reading time = 0.12 seconds
: 71400 rows, 2046 columns, 216019 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 71400 rows, 2046 columns and 216019 nonzeros
Model fingerprint: 0xb758d9b3
Variable types: 47 continuous, 1999 integer (1999 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]
Found heuristic solution: objective 2.0000000
Presolve removed 13843 rows and 42 columns
Presolve time: 0.51s
Presolved: 57557 rows, 2004 columns, 175012 nonzeros
Variable types: 0 continuous, 2004 integer (1957 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2001 rows, 59558 columns, 177016 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26527    3.8922891e+01   0.000000e+00   3.619899e+03      5s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00      8s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00      8s
   41528    3.9000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 3.900000e+01, 41528 iterations, 7.32 seconds (6.00 work units)
Total elapsed time = 18.96s (DegenMoves)
Total elapsed time = 21.33s (DegenMoves)
Total elapsed time = 25.77s (DegenMoves)

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

     0     0   39.00000    0  713    7.00000   39.00000   457%     -   26s
H    0     0                       9.0000000   39.00000   333%     -   27s
     0     0   39.00000    0  825    9.00000   39.00000   333%     -   46s
     0     0   39.00000    0  839    9.00000   39.00000   333%     -   48s

Cutting planes:
  Gomory: 2
  Cover: 4
  Clique: 5
  MIR: 138
  Zero half: 20
  RLT: 21

Explored 1 nodes (72685 simplex iterations) in 50.52 seconds (48.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 7 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo10089.37.sol'

