
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:10:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10014.39.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/grafo10014.39.lp
Reading time = 0.38 seconds
: 99369 rows, 2279 columns, 300163 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 99369 rows, 2279 columns and 300163 nonzeros
Model fingerprint: 0x548905e7
Variable types: 48 continuous, 2231 integer (2231 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 26623 rows and 17 columns
Presolve time: 1.47s
Presolved: 72746 rows, 2262 columns, 220747 nonzeros
Variable types: 0 continuous, 2262 integer (2214 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2262 rows, 75008 columns, 223009 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9501    4.7947129e+01   0.000000e+00   1.260882e+05      5s
   21278    4.7917241e+01   0.000000e+00   1.203350e+04     10s
   33823    4.7905151e+01   0.000000e+00   1.179326e+04     15s
   47594    4.7898534e+01   0.000000e+00   8.251957e+03     20s
   62333    4.7896022e+01   0.000000e+00   7.543831e+02     25s
   76378    4.7895243e+01   0.000000e+00   4.731329e+00     30s
   78527    4.8000000e+01   0.000000e+00   0.000000e+00     31s
   78527    4.8000000e+01   0.000000e+00   0.000000e+00     31s

Root relaxation: objective 4.800000e+01, 78527 iterations, 29.35 seconds (14.45 work units)

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

     0     0   48.00000    0 1502    6.00000   48.00000   700%     -   50s

Explored 1 nodes (85198 simplex iterations) in 50.03 seconds (24.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.800000000000e+01, gap 700.0000%

Wrote result file './lp_solutions/grafo10014.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:35:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10014.39.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/grafo10014.39.lp
Reading time = 0.16 seconds
: 99369 rows, 2279 columns, 300163 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 99369 rows, 2279 columns and 300163 nonzeros
Model fingerprint: 0x548905e7
Variable types: 48 continuous, 2231 integer (2231 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 26623 rows and 17 columns
Presolve time: 0.66s
Presolved: 72746 rows, 2262 columns, 220747 nonzeros
Variable types: 0 continuous, 2262 integer (2214 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2262 rows, 75008 columns, 223009 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21727    4.7916809e+01   0.000000e+00   2.466138e+04      5s
   46045    4.7899024e+01   0.000000e+00   5.859226e+03     10s
   70884    4.7895425e+01   0.000000e+00   1.289464e+02     15s
   78527    4.8000000e+01   0.000000e+00   0.000000e+00     17s
   78527    4.8000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.800000e+01, 78527 iterations, 15.84 seconds (14.45 work units)
Total elapsed time = 32.08s (DegenMoves)
Total elapsed time = 35.09s (DegenMoves)

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

     0     0   48.00000    0  657    6.00000   48.00000   700%     -   36s
H    0     0                      10.0000000   48.00000   380%     -   40s
H    0     0                      13.0000000   48.00000   269%     -   40s
     0     0          -    0        13.00000   48.00000   269%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 31
  Clique: 31
  MIR: 90
  GUB cover: 3
  Zero half: 27
  RLT: 51
  BQP: 1

Explored 1 nodes (103104 simplex iterations) in 50.09 seconds (48.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 10 6 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.800000000000e+01, gap 269.2308%

Wrote result file './lp_solutions/grafo10014.39.sol'

