
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:51:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5479.41.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/grafo5479.41.lp
Reading time = 0.14 seconds
: 70505 rows, 2091 columns, 213190 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 70505 rows, 2091 columns and 213190 nonzeros
Model fingerprint: 0xbe9744de
Variable types: 45 continuous, 2046 integer (2046 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 1.0000000
Presolve removed 12316 rows and 30 columns
Presolve time: 0.64s
Presolved: 58189 rows, 2061 columns, 176643 nonzeros
Variable types: 0 continuous, 2061 integer (2016 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2061 rows, 60250 columns, 178704 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22435    4.0954826e+01   0.000000e+00   2.501506e+03      5s
   33262    4.1000000e+01   0.000000e+00   0.000000e+00      8s
   33262    4.1000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.100000e+01, 33262 iterations, 7.48 seconds (4.25 work units)
Total elapsed time = 20.48s (DegenMoves)
Total elapsed time = 31.45s (DegenMoves)
Total elapsed time = 37.12s (DegenMoves)

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

     0     0   41.00000    0  551    9.00000   41.00000   356%     -   38s
     0     0          -    0         9.00000   41.00000   356%     -   50s

Cutting planes:
  Gomory: 16
  Cover: 33
  Clique: 5
  MIR: 144
  GUB cover: 12
  Zero half: 34
  RLT: 42
  BQP: 2

Explored 1 nodes (67746 simplex iterations) in 50.07 seconds (38.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.100000000000e+01, gap 355.5556%

Wrote result file './lp_solutions/grafo5479.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:56:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5479.41.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/grafo5479.41.lp
Reading time = 0.11 seconds
: 70505 rows, 2091 columns, 213190 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 70505 rows, 2091 columns and 213190 nonzeros
Model fingerprint: 0xbe9744de
Variable types: 45 continuous, 2046 integer (2046 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 1.0000000
Presolve removed 12316 rows and 30 columns
Presolve time: 0.46s
Presolved: 58189 rows, 2061 columns, 176643 nonzeros
Variable types: 0 continuous, 2061 integer (2016 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2061 rows, 60250 columns, 178704 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29410    4.0953665e+01   0.000000e+00   1.693278e+02      5s
   33262    4.1000000e+01   0.000000e+00   0.000000e+00      6s
   33262    4.1000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.100000e+01, 33262 iterations, 5.19 seconds (4.25 work units)
Total elapsed time = 15.39s (DegenMoves)
Total elapsed time = 24.01s (DegenMoves)
Total elapsed time = 26.64s (DegenMoves)

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

     0     0   41.00000    0  551    9.00000   41.00000   356%     -   29s
     0     0   41.00000    0  814    9.00000   41.00000   356%     -   40s
     0     0   41.00000    0  762    9.00000   41.00000   356%     -   41s
     0     0          -    0         9.00000   41.00000   356%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 24
  Cover: 8
  Clique: 5
  MIR: 106
  StrongCG: 2
  GUB cover: 3
  Zero half: 14
  RLT: 41
  BQP: 3
  PSD: 2

Explored 1 nodes (73445 simplex iterations) in 50.05 seconds (48.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.100000000000e+01, gap 355.5556%

Wrote result file './lp_solutions/grafo5479.41.sol'

