
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 13:55:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1977.24.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/grafo1977.24.lp
Reading time = 0.02 seconds
: 4661 rows, 394 columns, 14052 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 4661 rows, 394 columns and 14052 nonzeros
Model fingerprint: 0xe5b8710f
Variable types: 11 continuous, 383 integer (383 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 129 rows and 4 columns
Presolve time: 0.05s
Presolved: 4532 rows, 390 columns, 13730 nonzeros
Variable types: 0 continuous, 390 integer (379 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 7.000000e+00, 36 iterations, 0.01 seconds (0.01 work units)

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

     0     0    7.00000    0   14    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   31    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   15    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   15    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   12    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0    9    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   12    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   16    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   15    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   16    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   15    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   13    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   14    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   14    5.00000    7.00000  40.0%     -    0s
     0     2    7.00000    0    8    5.00000    7.00000  40.0%     -    1s

Cutting planes:
  Gomory: 7
  Cover: 16
  MIR: 14
  Inf proof: 25
  Zero half: 4
  Mod-K: 2
  RLT: 5

Explored 926 nodes (25263 simplex iterations) in 3.21 seconds (1.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1977.24.sol'

