
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:04:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo344.36.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/grafo344.36.lp
Reading time = 0.57 seconds
: 220633 rows, 1852 columns, 663408 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 220633 rows, 1852 columns and 663408 nonzeros
Model fingerprint: 0xa5c86146
Variable types: 41 continuous, 1811 integer (1811 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 98892 rows and 21 columns
Presolve time: 2.31s
Presolved: 121741 rows, 1831 columns, 367063 nonzeros
Variable types: 0 continuous, 1831 integer (1790 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1825 rows, 123566 columns, 368894 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    2649    4.0234087e+01   7.323637e+02   0.000000e+00      5s
    3192    4.1000000e+01   0.000000e+00   0.000000e+00      6s
    3192    4.1000000e+01   0.000000e+00   0.000000e+00      6s
    3192    4.1000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.100000e+01, 3192 iterations, 3.29 seconds (3.78 work units)
Total elapsed time = 27.46s (DegenMoves)
Total elapsed time = 35.23s (DegenMoves)

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

     0     0   41.00000    0  564    5.00000   41.00000   720%     -   40s
H    0     0                       7.0000000   41.00000   486%     -   41s
     0     0          -    0         7.00000   41.00000   486%     -   50s

Cutting planes:
  Gomory: 20
  Cover: 22
  Clique: 28
  MIR: 73
  GUB cover: 4
  Zero half: 114
  RLT: 41
  BQP: 8

Explored 1 nodes (22131 simplex iterations) in 50.03 seconds (60.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 5 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.100000000000e+01, gap 485.7143%

Wrote result file './lp_solutions/grafo344.36.sol'

