
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:33:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5696.42.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/grafo5696.42.lp
Reading time = 0.17 seconds
: 85158 rows, 2584 columns, 257922 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 85158 rows, 2584 columns and 257922 nonzeros
Model fingerprint: 0xedd12c18
Variable types: 53 continuous, 2531 integer (2531 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 9071 rows and 1 columns
Presolve time: 0.68s
Presolved: 76087 rows, 2583 columns, 231182 nonzeros
Variable types: 0 continuous, 2583 integer (2530 binary)
Root relaxation presolved: 2550 rows, 78637 columns, 233765 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14781    4.4947009e+01   0.000000e+00   1.114982e+04      5s
   30893    4.4930746e+01   0.000000e+00   8.360297e+03     10s
   45943    4.4927802e+01   0.000000e+00   8.620901e+01     15s
   47954    4.5000000e+01   0.000000e+00   0.000000e+00     16s
   47954    4.5000000e+01   0.000000e+00   0.000000e+00     16s
   47954    4.5000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.500000e+01, 47954 iterations, 15.12 seconds (9.17 work units)
Total elapsed time = 30.94s (DegenMoves)
Total elapsed time = 38.75s (DegenMoves)
Total elapsed time = 40.75s (DegenMoves)

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

     0     0   45.00000    0  473          -   45.00000      -     -   40s
H    0     0                       9.0000000   45.00000   400%     -   43s
     0     0          -    0         9.00000   45.00000   400%     -   50s

Cutting planes:
  Gomory: 32
  Cover: 39
  Clique: 2
  MIR: 96
  Zero half: 39
  RLT: 25

Explored 1 nodes (71856 simplex iterations) in 50.16 seconds (37.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.500000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo5696.42.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:24:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5696.42.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/grafo5696.42.lp
Reading time = 0.14 seconds
: 85158 rows, 2584 columns, 257922 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 85158 rows, 2584 columns and 257922 nonzeros
Model fingerprint: 0xedd12c18
Variable types: 53 continuous, 2531 integer (2531 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 9071 rows and 1 columns
Presolve time: 0.48s
Presolved: 76087 rows, 2583 columns, 231182 nonzeros
Variable types: 0 continuous, 2583 integer (2530 binary)
Root relaxation presolved: 2550 rows, 78637 columns, 233765 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21093    4.4938046e+01   0.000000e+00   2.881507e+04      5s
   42093    4.4928055e+01   0.000000e+00   4.329890e+02     10s
   47954    4.5000000e+01   0.000000e+00   0.000000e+00     12s
   47954    4.5000000e+01   0.000000e+00   0.000000e+00     12s
   47954    4.5000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.500000e+01, 47954 iterations, 10.94 seconds (9.17 work units)
Total elapsed time = 23.33s (DegenMoves)
Total elapsed time = 29.37s (DegenMoves)
Total elapsed time = 30.24s (DegenMoves)

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

     0     0   45.00000    0  473          -   45.00000      -     -   30s
H    0     0                       9.0000000   45.00000   400%     -   32s
     0     0   45.00000    0  655    9.00000   45.00000   400%     -   37s
     0     0   45.00000    0  629    9.00000   45.00000   400%     -   38s
     0     0   45.00000    0  729    9.00000   45.00000   400%     -   50s

Cutting planes:
  Gomory: 12
  Lift-and-project: 29
  Cover: 22
  Clique: 3
  MIR: 146
  Zero half: 29
  RLT: 26
  BQP: 1

Explored 1 nodes (79924 simplex iterations) in 50.07 seconds (48.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.500000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo5696.42.sol'

