
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 10:01:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7517.38.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/grafo7517.38.lp
Reading time = 0.13 seconds
: 67702 rows, 2028 columns, 204843 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 67702 rows, 2028 columns and 204843 nonzeros
Model fingerprint: 0xcf320376
Variable types: 46 continuous, 1982 integer (1982 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 12355 rows and 24 columns
Presolve time: 0.52s
Presolved: 55347 rows, 2004 columns, 168100 nonzeros
Variable types: 0 continuous, 2004 integer (1958 binary)
Root relaxation presolved: 2004 rows, 57351 columns, 170104 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25927    4.6941711e+01   0.000000e+00   1.260477e+04      5s
   35430    4.7000000e+01   0.000000e+00   0.000000e+00      7s
   35430    4.7000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.700000e+01, 35430 iterations, 6.27 seconds (4.31 work units)
Total elapsed time = 16.83s (DegenMoves)
Total elapsed time = 20.37s (DegenMoves)

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

     0     0   47.00000    0  500          -   47.00000      -     -   21s
H    0     0                       5.0000000   47.00000   840%     -   21s
H    0     0                       7.0000000   47.00000   571%     -   21s
H    0     0                       8.0000000   47.00000   488%     -   23s
H    0     0                       9.0000000   47.00000   422%     -   33s
     0     0   47.00000    0  797    9.00000   47.00000   422%     -   33s
     0     0   47.00000    0  689    9.00000   47.00000   422%     -   36s
     0     0   47.00000    0  838    9.00000   47.00000   422%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 49
  Cover: 16
  Clique: 7
  MIR: 135
  StrongCG: 2
  GUB cover: 4
  Zero half: 24
  RLT: 58
  BQP: 1

Explored 1 nodes (66338 simplex iterations) in 50.06 seconds (39.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.700000000000e+01, gap 422.2222%

Wrote result file './lp_solutions/grafo7517.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:56:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7517.38.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/grafo7517.38.lp
Reading time = 0.11 seconds
: 67702 rows, 2028 columns, 204843 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 67702 rows, 2028 columns and 204843 nonzeros
Model fingerprint: 0xcf320376
Variable types: 46 continuous, 1982 integer (1982 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 12355 rows and 24 columns
Presolve time: 0.51s
Presolved: 55347 rows, 2004 columns, 168100 nonzeros
Variable types: 0 continuous, 2004 integer (1958 binary)
Root relaxation presolved: 2004 rows, 57351 columns, 170104 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29004    4.6941245e+01   0.000000e+00   3.597986e+02      5s
   35430    4.7000000e+01   0.000000e+00   0.000000e+00      6s
   35430    4.7000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.700000e+01, 35430 iterations, 5.52 seconds (4.31 work units)
Total elapsed time = 14.67s (DegenMoves)
Total elapsed time = 15.70s (DegenMoves)

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

     0     0   47.00000    0  500          -   47.00000      -     -   18s
H    0     0                       5.0000000   47.00000   840%     -   18s
H    0     0                       7.0000000   47.00000   571%     -   18s
H    0     0                       8.0000000   47.00000   488%     -   20s
H    0     0                       9.0000000   47.00000   422%     -   29s
     0     0   47.00000    0  797    9.00000   47.00000   422%     -   29s
     0     0   47.00000    0  689    9.00000   47.00000   422%     -   31s
     0     0   47.00000    0  675    9.00000   47.00000   422%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 49
  Cover: 16
  Clique: 7
  MIR: 135
  StrongCG: 2
  GUB cover: 4
  Zero half: 24
  RLT: 58
  BQP: 1

Explored 1 nodes (74633 simplex iterations) in 50.07 seconds (45.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.700000000000e+01, gap 422.2222%

Wrote result file './lp_solutions/grafo7517.38.sol'

