
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:51:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3268.42.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/grafo3268.42.lp
Reading time = 0.19 seconds
: 105623 rows, 2377 columns, 318830 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 105623 rows, 2377 columns and 318830 nonzeros
Model fingerprint: 0x8d732a77
Variable types: 48 continuous, 2329 integer (2329 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 28787 rows and 29 columns
Presolve time: 1.07s
Presolved: 76836 rows, 2348 columns, 232909 nonzeros
Variable types: 0 continuous, 2348 integer (2300 binary)
Root relaxation presolved: 2348 rows, 79184 columns, 235257 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14764    5.6951281e+01   0.000000e+00   3.823094e+04      5s
   31947    5.6926466e+01   0.000000e+00   1.607393e+04     10s
   48337    5.6916921e+01   0.000000e+00   2.190213e+04     15s
   64781    5.6911963e+01   0.000000e+00   4.898793e+03     20s
   81541    5.6910122e+01   0.000000e+00   1.174905e+02     25s
   86415    5.7000000e+01   0.000000e+00   0.000000e+00     27s
   86415    5.7000000e+01   0.000000e+00   0.000000e+00     27s

Root relaxation: objective 5.700000e+01, 86415 iterations, 25.46 seconds (16.90 work units)
Total elapsed time = 47.19s (DegenMoves)

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

     0     0   57.00000    0  883          -   57.00000      -     -   50s
H    0     0                       2.0000000   57.00000  2750%     -   50s

Explored 1 nodes (102163 simplex iterations) in 50.05 seconds (38.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 5.700000000000e+01, gap 2750.0000%

Wrote result file './lp_solutions/grafo3268.42.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:18:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3268.42.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/grafo3268.42.lp
Reading time = 0.17 seconds
: 105623 rows, 2377 columns, 318830 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 105623 rows, 2377 columns and 318830 nonzeros
Model fingerprint: 0x8d732a77
Variable types: 48 continuous, 2329 integer (2329 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 28787 rows and 29 columns
Presolve time: 0.72s
Presolved: 76836 rows, 2348 columns, 232909 nonzeros
Variable types: 0 continuous, 2348 integer (2300 binary)
Root relaxation presolved: 2348 rows, 79184 columns, 235257 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20647    5.6938918e+01   0.000000e+00   5.003834e+04      5s
   43959    5.6918964e+01   0.000000e+00   1.450544e+04     10s
   66140    5.6911649e+01   0.000000e+00   8.128575e+03     15s
   86415    5.7000000e+01   0.000000e+00   0.000000e+00     19s
   86415    5.7000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.700000e+01, 86415 iterations, 18.57 seconds (16.90 work units)
Total elapsed time = 36.36s (DegenMoves)
Total elapsed time = 42.47s (DegenMoves)
Total elapsed time = 47.52s (DegenMoves)

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

     0     0   57.00000    0  849          -   57.00000      -     -   50s
H    0     0                       2.0000000   57.00000  2750%     -   50s

Explored 1 nodes (113584 simplex iterations) in 50.02 seconds (59.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 5.700000000000e+01, gap 2750.0000%

Wrote result file './lp_solutions/grafo3268.42.sol'

