
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:22:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6462.46.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/grafo6462.46.lp
Reading time = 0.16 seconds
: 73739 rows, 2350 columns, 222907 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 73739 rows, 2350 columns and 222907 nonzeros
Model fingerprint: 0x20e0cd80
Variable types: 46 continuous, 2304 integer (2304 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 8260 rows and 0 columns
Presolve time: 0.71s
Presolved: 65479 rows, 2350 columns, 198409 nonzeros
Variable types: 0 continuous, 2350 integer (2304 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2314 rows, 67793 columns, 200759 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19284    4.7974120e+01   0.000000e+00   4.345362e+04      5s
   37130    4.7967068e+01   0.000000e+00   1.048150e+03     10s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     12s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     12s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.800000e+01, 42415 iterations, 11.38 seconds (6.35 work units)
Total elapsed time = 30.98s (DegenMoves)
Total elapsed time = 35.05s (DegenMoves)

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

     0     0   48.00000    0  688    7.00000   48.00000   586%     -   39s
H    0     0                       8.0000000   48.00000   500%     -   40s
     0     0          -    0         8.00000   48.00000   500%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 38
  Clique: 2
  MIR: 174
  Zero half: 28
  RLT: 47
  BQP: 2

Explored 1 nodes (68802 simplex iterations) in 50.12 seconds (35.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 7 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.800000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo6462.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:15:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6462.46.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/grafo6462.46.lp
Reading time = 0.15 seconds
: 73739 rows, 2350 columns, 222907 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 73739 rows, 2350 columns and 222907 nonzeros
Model fingerprint: 0x20e0cd80
Variable types: 46 continuous, 2304 integer (2304 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 8260 rows and 0 columns
Presolve time: 0.55s
Presolved: 65479 rows, 2350 columns, 198409 nonzeros
Variable types: 0 continuous, 2350 integer (2304 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2314 rows, 67793 columns, 200759 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18690    4.7974596e+01   0.000000e+00   7.610635e+04      5s
   37433    4.7967032e+01   0.000000e+00   9.815665e+02     10s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     11s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     11s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.800000e+01, 42415 iterations, 10.80 seconds (6.35 work units)
Total elapsed time = 30.65s (DegenMoves)
Total elapsed time = 38.30s (DegenMoves)

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

     0     0   48.00000    0  688    7.00000   48.00000   586%     -   40s
H    0     0                       8.0000000   48.00000   500%     -   40s
     0     0          -    0         8.00000   48.00000   500%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 38
  Clique: 2
  MIR: 174
  Zero half: 28
  RLT: 47
  BQP: 2

Explored 1 nodes (68141 simplex iterations) in 50.09 seconds (34.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 7 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.800000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo6462.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:18:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6462.46.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/grafo6462.46.lp
Reading time = 0.15 seconds
: 73739 rows, 2350 columns, 222907 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 73739 rows, 2350 columns and 222907 nonzeros
Model fingerprint: 0x20e0cd80
Variable types: 46 continuous, 2304 integer (2304 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 8260 rows and 0 columns
Presolve time: 0.49s
Presolved: 65479 rows, 2350 columns, 198409 nonzeros
Variable types: 0 continuous, 2350 integer (2304 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2314 rows, 67793 columns, 200759 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23145    4.7971258e+01   0.000000e+00   3.334182e+04      5s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     10s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     10s
   42415    4.8000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.800000e+01, 42415 iterations, 9.18 seconds (6.35 work units)
Total elapsed time = 27.09s (DegenMoves)
Total elapsed time = 30.76s (DegenMoves)

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

     0     0   48.00000    0  688    7.00000   48.00000   586%     -   35s
H    0     0                       8.0000000   48.00000   500%     -   35s
     0     0          -    0         8.00000   48.00000   500%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 38
  Clique: 2
  MIR: 174
  Zero half: 28
  RLT: 47
  BQP: 2

Explored 1 nodes (72069 simplex iterations) in 50.10 seconds (39.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 7 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.800000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo6462.46.sol'

