
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:41:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7397.40.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/grafo7397.40.lp
Reading time = 0.13 seconds
: 85163 rows, 2104 columns, 257187 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 85163 rows, 2104 columns and 257187 nonzeros
Model fingerprint: 0x8cef4857
Variable types: 44 continuous, 2060 integer (2060 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 3.0000000
Presolve removed 22133 rows and 10 columns
Presolve time: 0.52s
Presolved: 63030 rows, 2094 columns, 191225 nonzeros
Variable types: 0 continuous, 2094 integer (2050 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2090 rows, 65120 columns, 193319 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26963    4.5726530e+01   0.000000e+00   2.701719e+03      5s
   38416    4.6000000e+01   0.000000e+00   0.000000e+00      7s
   38416    4.6000000e+01   0.000000e+00   0.000000e+00      7s
   38416    4.6000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.600000e+01, 38416 iterations, 6.63 seconds (5.73 work units)
Total elapsed time = 18.26s (DegenMoves)
Total elapsed time = 23.82s (DegenMoves)
Total elapsed time = 27.59s (DegenMoves)

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

     0     0   46.00000    0  772   10.00000   46.00000   360%     -   31s
H    0     0                      13.0000000   46.00000   254%     -   31s
     0     0          -    0        13.00000   46.00000   254%     -   50s

Cutting planes:
  Gomory: 20
  Cover: 36
  Clique: 25
  MIR: 110
  Zero half: 84
  RLT: 53
  BQP: 1

Explored 1 nodes (78569 simplex iterations) in 50.06 seconds (55.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 10 3 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.600000000000e+01, gap 253.8462%

Wrote result file './lp_solutions/grafo7397.40.sol'

