
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 01:34:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2320.23.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/grafo2320.23.lp
Reading time = 0.36 seconds
: 222922 rows, 1191 columns, 669805 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 222922 rows, 1191 columns and 669805 nonzeros
Model fingerprint: 0xf70b3b37
Variable types: 33 continuous, 1158 integer (1158 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 -0.0000000
Presolve removed 112779 rows and 4 columns
Presolve time: 1.54s
Presolved: 110143 rows, 1187 columns, 331595 nonzeros
Variable types: 0 continuous, 1187 integer (1154 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1185 rows, 111328 columns, 332782 nonzeros


Root relaxation: objective 4.300000e+01, 1962 iterations, 0.96 seconds (1.22 work units)
Total elapsed time = 11.77s (DegenMoves)

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

     0     0   43.00000    0  568    8.00000   43.00000   438%     -   15s
H    0     0                       9.0000000   43.00000   378%     -   16s
     0     0   43.00000    0  754    9.00000   43.00000   378%     -   31s
     0     0   43.00000    0  714    9.00000   43.00000   378%     -   33s
     0     0   43.00000    0  713    9.00000   43.00000   378%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 17
  Clique: 71
  MIR: 97
  Zero half: 21
  RLT: 94
  BQP: 14

Explored 1 nodes (20806 simplex iterations) in 50.03 seconds (58.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 -0 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.300000000000e+01, gap 377.7778%

Wrote result file './lp_solutions/grafo2320.23.sol'

