
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:42:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3133.49.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/grafo3133.49.lp
Reading time = 0.22 seconds
: 118709 rows, 3143 columns, 358894 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 118709 rows, 3143 columns and 358894 nonzeros
Model fingerprint: 0x4c2cc60d
Variable types: 57 continuous, 3086 integer (3086 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, 6e+01]
Presolve removed 14115 rows and 1 columns
Presolve time: 1.19s
Presolved: 104594 rows, 3142 columns, 317008 nonzeros
Variable types: 0 continuous, 3142 integer (3085 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3097 rows, 107691 columns, 320150 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13078    5.6987264e+01   0.000000e+00   3.930562e+05      5s
   25987    5.6931346e+01   0.000000e+00   1.755844e+05     10s
   38956    5.6907374e+01   0.000000e+00   5.543989e+04     15s
   50242    5.6898822e+01   0.000000e+00   4.674475e+04     20s
   61528    5.6894397e+01   0.000000e+00   2.040622e+03     25s
   70501    5.7000000e+01   0.000000e+00   0.000000e+00     29s
   70501    5.7000000e+01   0.000000e+00   0.000000e+00     29s
   70501    5.7000000e+01   0.000000e+00   0.000000e+00     29s

Root relaxation: objective 5.700000e+01, 70501 iterations, 27.71 seconds (15.93 work units)

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

     0     0   57.00000    0 1803    9.00000   57.00000   533%     -   50s

Explored 1 nodes (84398 simplex iterations) in 50.03 seconds (33.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.700000000000e+01, gap 533.3333%

Wrote result file './lp_solutions/grafo3133.49.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:44:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3133.49.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/grafo3133.49.lp
Reading time = 0.18 seconds
: 118709 rows, 3143 columns, 358894 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 118709 rows, 3143 columns and 358894 nonzeros
Model fingerprint: 0x4c2cc60d
Variable types: 57 continuous, 3086 integer (3086 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, 6e+01]
Presolve removed 14115 rows and 1 columns
Presolve time: 0.67s
Presolved: 104594 rows, 3142 columns, 317008 nonzeros
Variable types: 0 continuous, 3142 integer (3085 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3097 rows, 107691 columns, 320150 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18327    5.6956322e+01   0.000000e+00   1.072935e+05      5s
   36030    5.6910580e+01   0.000000e+00   2.910019e+04     10s
   53168    5.6897244e+01   0.000000e+00   8.855072e+03     15s
   69888    5.6893559e+01   0.000000e+00   4.282709e+01     20s
   70501    5.7000000e+01   0.000000e+00   0.000000e+00     20s
   70501    5.7000000e+01   0.000000e+00   0.000000e+00     20s
   70501    5.7000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 5.700000e+01, 70501 iterations, 19.46 seconds (15.93 work units)
Total elapsed time = 40.45s (DegenMoves)

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

     0     0   57.00000    0 1092    9.00000   57.00000   533%     -   50s

Explored 1 nodes (95323 simplex iterations) in 50.04 seconds (53.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.700000000000e+01, gap 533.3333%

Wrote result file './lp_solutions/grafo3133.49.sol'

