
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:34:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10083.38.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/grafo10083.38.lp
Reading time = 0.47 seconds
: 89329 rows, 2172 columns, 269986 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 89329 rows, 2172 columns and 269986 nonzeros
Model fingerprint: 0x868f9432
Variable types: 48 continuous, 2124 integer (2124 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 21803 rows and 32 columns
Presolve time: 1.54s
Presolved: 67526 rows, 2140 columns, 204988 nonzeros
Variable types: 0 continuous, 2140 integer (2092 binary)
Root relaxation presolved: 2140 rows, 69666 columns, 207128 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6965    4.4844164e+01   0.000000e+00   1.986091e+05      5s
   19218    4.2760886e+01   0.000000e+00   7.573734e+04     10s
   32018    4.2751100e+01   0.000000e+00   2.129754e+03     15s
   41600    4.3000000e+01   0.000000e+00   0.000000e+00     19s
   41600    4.3000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 4.300000e+01, 41600 iterations, 16.85 seconds (6.00 work units)
Total elapsed time = 34.71s (DegenMoves)
Total elapsed time = 36.02s (DegenMoves)

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

     0     0   43.00000    0  494          -   43.00000      -     -   37s
H    0     0                       6.0000000   43.00000   617%     -   42s
     0     0          -    0         6.00000   43.00000   617%     -   50s

Cutting planes:
  Gomory: 36
  Cover: 43
  Clique: 16
  MIR: 130
  GUB cover: 7
  Zero half: 90
  RLT: 60
  BQP: 7

Explored 1 nodes (53173 simplex iterations) in 50.60 seconds (17.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.300000000000e+01, gap 616.6667%

Wrote result file './lp_solutions/grafo10083.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:39:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10083.38.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/grafo10083.38.lp
Reading time = 0.11 seconds
: 89329 rows, 2172 columns, 269986 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 89329 rows, 2172 columns and 269986 nonzeros
Model fingerprint: 0x868f9432
Variable types: 48 continuous, 2124 integer (2124 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 21803 rows and 32 columns
Presolve time: 0.51s
Presolved: 67526 rows, 2140 columns, 204988 nonzeros
Variable types: 0 continuous, 2140 integer (2092 binary)
Root relaxation presolved: 2140 rows, 69666 columns, 207128 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32018    4.2751100e+01   0.000000e+00   2.129754e+03      5s
   41600    4.3000000e+01   0.000000e+00   0.000000e+00      7s
   41600    4.3000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.300000e+01, 41600 iterations, 5.88 seconds (6.00 work units)
Total elapsed time = 12.08s (DegenMoves)

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

     0     0   43.00000    0  494          -   43.00000      -     -   12s
H    0     0                       6.0000000   43.00000   617%     -   14s
     0     0   43.00000    0  756    6.00000   43.00000   617%     -   21s
H    0     0                       9.0000000   43.00000   378%     -   21s
     0     0   43.00000    0  759    9.00000   43.00000   378%     -   22s
     0     0   43.00000    0  582    9.00000   43.00000   378%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 36
  Cover: 10
  Clique: 13
  MIR: 117
  Zero half: 56
  RLT: 57
  BQP: 2

Explored 1 nodes (82195 simplex iterations) in 50.06 seconds (57.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.300000000000e+01, gap 377.7778%

Wrote result file './lp_solutions/grafo10083.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:22:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10083.38.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/grafo10083.38.lp
Reading time = 0.15 seconds
: 89329 rows, 2172 columns, 269986 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 89329 rows, 2172 columns and 269986 nonzeros
Model fingerprint: 0x868f9432
Variable types: 48 continuous, 2124 integer (2124 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 21803 rows and 32 columns
Presolve time: 0.67s
Presolved: 67526 rows, 2140 columns, 204988 nonzeros
Variable types: 0 continuous, 2140 integer (2092 binary)
Root relaxation presolved: 2140 rows, 69666 columns, 207128 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23698    4.2755629e+01   0.000000e+00   4.542968e+03      5s
   41600    4.3000000e+01   0.000000e+00   0.000000e+00      9s
   41600    4.3000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.300000e+01, 41600 iterations, 7.93 seconds (6.00 work units)
Total elapsed time = 16.29s (DegenMoves)

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

     0     0   43.00000    0  494          -   43.00000      -     -   17s
H    0     0                       6.0000000   43.00000   617%     -   19s
     0     0   43.00000    0  756    6.00000   43.00000   617%     -   28s
H    0     0                       9.0000000   43.00000   378%     -   28s
     0     0   43.00000    0  759    9.00000   43.00000   378%     -   29s
     0     0   43.00000    0  804    9.00000   43.00000   378%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 36
  Cover: 10
  Clique: 13
  MIR: 117
  Zero half: 56
  RLT: 57
  BQP: 2

Explored 1 nodes (68349 simplex iterations) in 50.10 seconds (38.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.300000000000e+01, gap 377.7778%

Wrote result file './lp_solutions/grafo10083.38.sol'

