
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:48:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6416.38.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/grafo6416.38.lp
Reading time = 0.23 seconds
: 132496 rows, 2641 columns, 400115 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 132496 rows, 2641 columns and 400115 nonzeros
Model fingerprint: 0x2b5a67ad
Variable types: 55 continuous, 2586 integer (2586 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 36594 rows and 27 columns
Presolve time: 1.06s
Presolved: 95902 rows, 2614 columns, 290845 nonzeros
Variable types: 0 continuous, 2614 integer (2559 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2605 rows, 98507 columns, 293459 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17560    6.9998720e+01   0.000000e+00   1.591186e+05      5s
   35146    6.4967013e+01   0.000000e+00   5.503111e+04     10s
   51923    6.4954060e+01   0.000000e+00   4.169085e+04     15s
   68446    6.4945983e+01   0.000000e+00   1.500687e+04     20s
   84810    6.4941409e+01   0.000000e+00   5.684268e+03     25s
  101905    6.4938359e+01   0.000000e+00   2.551500e+03     30s
  118929    6.4936534e+01   0.000000e+00   9.476180e+02     35s
  136934    6.4935936e+01   0.000000e+00   6.819917e-01     40s
  138080    6.5000000e+01   0.000000e+00   0.000000e+00     40s
  138080    6.5000000e+01   0.000000e+00   0.000000e+00     40s
  138080    6.5000000e+01   0.000000e+00   0.000000e+00     40s

Root relaxation: objective 6.500000e+01, 138080 iterations, 39.18 seconds (28.30 work units)

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

     0     0   65.00000    0 1853    6.00000   65.00000   983%     -   50s

Explored 1 nodes (142529 simplex iterations) in 50.04 seconds (38.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 6.500000000000e+01, gap 983.3333%

Wrote result file './lp_solutions/grafo6416.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:43:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6416.38.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/grafo6416.38.lp
Reading time = 0.21 seconds
: 132496 rows, 2641 columns, 400115 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 132496 rows, 2641 columns and 400115 nonzeros
Model fingerprint: 0x2b5a67ad
Variable types: 55 continuous, 2586 integer (2586 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 36594 rows and 27 columns
Presolve time: 0.95s
Presolved: 95902 rows, 2614 columns, 290845 nonzeros
Variable types: 0 continuous, 2614 integer (2559 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2605 rows, 98507 columns, 293459 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19752    6.8992136e+01   0.000000e+00   3.498405e+05      5s
   39060    6.4963531e+01   0.000000e+00   1.176190e+05     10s
   58787    6.4950328e+01   0.000000e+00   1.508236e+04     15s
   77523    6.4943193e+01   0.000000e+00   8.109385e+03     20s
   97217    6.4939036e+01   0.000000e+00   4.025679e+04     25s
  116731    6.4936692e+01   0.000000e+00   2.938872e+03     30s
  136934    6.4935936e+01   0.000000e+00   6.819917e-01     35s
  138080    6.5000000e+01   0.000000e+00   0.000000e+00     35s
  138080    6.5000000e+01   0.000000e+00   0.000000e+00     35s
  138080    6.5000000e+01   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 6.500000e+01, 138080 iterations, 34.26 seconds (28.30 work units)

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

     0     0   65.00000    0 1853    6.00000   65.00000   983%     -   50s

Explored 1 nodes (145565 simplex iterations) in 50.03 seconds (43.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 6.500000000000e+01, gap 983.3333%

Wrote result file './lp_solutions/grafo6416.38.sol'

