
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 15:47:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2028.23.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/grafo2028.23.lp
Reading time = 0.10 seconds
: 62703 rows, 963 columns, 188845 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 62703 rows, 963 columns and 188845 nonzeros
Model fingerprint: 0xf0260c8b
Variable types: 30 continuous, 933 integer (933 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 28325 rows and 9 columns
Presolve time: 0.42s
Presolved: 34378 rows, 954 columns, 104091 nonzeros
Variable types: 0 continuous, 954 integer (924 binary)
Found heuristic solution: objective 2.0000000
Root relaxation presolved: 954 rows, 35332 columns, 105045 nonzeros


Root relaxation: objective 3.400000e+01, 1110 iterations, 0.22 seconds (0.27 work units)

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

     0     0   34.00000    0  305    2.00000   34.00000  1600%     -    2s
H    0     0                       4.0000000   34.00000   750%     -    2s
     0     0   34.00000    0  458    4.00000   34.00000   750%     -    4s
     0     0   34.00000    0  449    4.00000   34.00000   750%     -    5s
     0     0   34.00000    0  248    4.00000   34.00000   750%     -   17s
H    0     0                       7.0000000   34.00000   386%     -   17s
H    0     0                       8.0000000   34.00000   325%     -   17s
     0     0   34.00000    0  252    8.00000   34.00000   325%     -   17s
     0     0   34.00000    0  327    8.00000   34.00000   325%     -   24s
     0     0   34.00000    0  339    8.00000   34.00000   325%     -   24s
     0     0   34.00000    0  294    8.00000   34.00000   325%     -   28s
     0     0   34.00000    0  308    8.00000   34.00000   325%     -   28s
     0     0   34.00000    0  330    8.00000   34.00000   325%     -   33s
     0     0   34.00000    0  317    8.00000   34.00000   325%     -   34s
H    0     0                       9.0000000   34.00000   278%     -   42s
     0     0   34.00000    0  311    9.00000   34.00000   278%     -   43s
     0     0   34.00000    0  285    9.00000   34.00000   278%     -   44s
     0     0   34.00000    0  414    9.00000   34.00000   278%     -   48s
     0     0   34.00000    0  414    9.00000   34.00000   278%     -   50s

Cutting planes:
  Cover: 3
  Clique: 27
  MIR: 45
  Zero half: 7
  RLT: 22
  BQP: 2

Explored 1 nodes (61985 simplex iterations) in 50.02 seconds (49.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 7 ... 2

Time limit reached
Best objective 9.000000000000e+00, best bound 3.400000000000e+01, gap 277.7778%

Wrote result file './lp_solutions/grafo2028.23.sol'

