
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:29:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3735.39.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/grafo3735.39.lp
Reading time = 0.18 seconds
: 87114 rows, 2153 columns, 263141 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 87114 rows, 2153 columns and 263141 nonzeros
Model fingerprint: 0xee825387
Variable types: 47 continuous, 2106 integer (2106 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 -0.0000000
Presolve removed 21362 rows and 39 columns
Presolve time: 0.96s
Presolved: 65752 rows, 2114 columns, 199474 nonzeros
Variable types: 0 continuous, 2114 integer (2067 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2114 rows, 67866 columns, 201588 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18024    5.0837843e+01   0.000000e+00   5.616983e+04      5s
   38514    5.0802162e+01   0.000000e+00   5.996169e+03     10s
   58674    5.0797171e+01   0.000000e+00   2.227967e+00     15s
   58818    5.1000000e+01   0.000000e+00   0.000000e+00     15s
   58818    5.1000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.100000e+01, 58818 iterations, 14.01 seconds (7.87 work units)
Total elapsed time = 32.43s (DegenMoves)
Total elapsed time = 35.66s (DegenMoves)

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

     0     0   51.00000    0  849    7.00000   51.00000   629%     -   50s

Explored 1 nodes (85064 simplex iterations) in 50.04 seconds (46.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 -0 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.100000000000e+01, gap 628.5714%

Wrote result file './lp_solutions/grafo3735.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:14:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3735.39.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/grafo3735.39.lp
Reading time = 0.14 seconds
: 87114 rows, 2153 columns, 263141 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 87114 rows, 2153 columns and 263141 nonzeros
Model fingerprint: 0xee825387
Variable types: 47 continuous, 2106 integer (2106 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 -0.0000000
Presolve removed 21362 rows and 39 columns
Presolve time: 0.60s
Presolved: 65752 rows, 2114 columns, 199474 nonzeros
Variable types: 0 continuous, 2114 integer (2067 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2114 rows, 67866 columns, 201588 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26034    5.0815277e+01   0.000000e+00   8.210944e+03      5s
   52274    5.0797613e+01   0.000000e+00   3.521839e+02     10s
   58818    5.1000000e+01   0.000000e+00   0.000000e+00     11s
   58818    5.1000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 5.100000e+01, 58818 iterations, 10.59 seconds (7.87 work units)
Total elapsed time = 25.36s (DegenMoves)

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

     0     0   51.00000    0  849    7.00000   51.00000   629%     -   50s

Explored 1 nodes (94027 simplex iterations) in 50.03 seconds (63.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 -0 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.100000000000e+01, gap 628.5714%

Wrote result file './lp_solutions/grafo3735.39.sol'

