
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 03:44:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11645.36.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/grafo11645.36.lp
Reading time = 0.18 seconds
: 82343 rows, 2019 columns, 248864 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 82343 rows, 2019 columns and 248864 nonzeros
Model fingerprint: 0xf1866960
Variable types: 46 continuous, 1973 integer (1973 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 5.0000000
Presolve removed 21636 rows and 19 columns
Presolve time: 0.90s
Presolved: 60707 rows, 2000 columns, 184402 nonzeros
Variable types: 0 continuous, 2000 integer (1954 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 1991 rows, 62698 columns, 186402 nonzeros


Root relaxation: objective 4.600000e+01, 1586 iterations, 0.56 seconds (0.30 work units)

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

     0     0   46.00000    0  430   12.00000   46.00000   283%     -    4s
H    0     0                      14.0000000   46.00000   229%     -    4s
H    0     0                      15.0000000   46.00000   207%     -   23s
     0     0   46.00000    0  835   15.00000   46.00000   207%     -   25s
     0     0   46.00000    0  759   15.00000   46.00000   207%     -   29s
     0     0   46.00000    0  815   15.00000   46.00000   207%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 9
  Clique: 14
  MIR: 130
  StrongCG: 1
  Zero half: 82
  RLT: 76
  BQP: 3

Explored 1 nodes (25680 simplex iterations) in 50.12 seconds (28.91 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 12 5 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.600000000000e+01, gap 206.6667%

Wrote result file './lp_solutions/grafo11645.36.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:10:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11645.36.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/grafo11645.36.lp
Reading time = 0.14 seconds
: 82343 rows, 2019 columns, 248864 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 82343 rows, 2019 columns and 248864 nonzeros
Model fingerprint: 0xf1866960
Variable types: 46 continuous, 1973 integer (1973 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 5.0000000
Presolve removed 21636 rows and 19 columns
Presolve time: 0.57s
Presolved: 60707 rows, 2000 columns, 184402 nonzeros
Variable types: 0 continuous, 2000 integer (1954 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 1991 rows, 62698 columns, 186402 nonzeros


Root relaxation: objective 4.600000e+01, 1586 iterations, 0.35 seconds (0.30 work units)

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

     0     0   46.00000    0  430   12.00000   46.00000   283%     -    3s
H    0     0                      14.0000000   46.00000   229%     -    3s
H    0     0                      15.0000000   46.00000   207%     -   16s
     0     0   46.00000    0  835   15.00000   46.00000   207%     -   17s
     0     0   46.00000    0  759   15.00000   46.00000   207%     -   19s
     0     0   46.00000    0  722   15.00000   46.00000   207%     -   43s
H    0     0                      16.0000000   46.00000   187%     -   49s
     0     0   46.00000    0  740   16.00000   46.00000   187%     -   49s

Cutting planes:
  Cover: 24
  Clique: 14
  MIR: 149
  StrongCG: 2
  Zero half: 5
  RLT: 33
  BQP: 1

Explored 1 nodes (38304 simplex iterations) in 50.10 seconds (44.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 16 15 14 ... 5

Time limit reached
Best objective 1.600000000000e+01, best bound 4.600000000000e+01, gap 187.5000%

Wrote result file './lp_solutions/grafo11645.36.sol'

