
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:53:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5286.37.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/grafo5286.37.lp
Reading time = 0.30 seconds
: 183148 rows, 2086 columns, 551326 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 183148 rows, 2086 columns and 551326 nonzeros
Model fingerprint: 0x75217d79
Variable types: 46 continuous, 2040 integer (2040 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 73173 rows and 19 columns
Presolve time: 1.30s
Presolved: 109975 rows, 2067 columns, 332203 nonzeros
Variable types: 0 continuous, 2067 integer (2021 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2058 rows, 112033 columns, 334270 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20169    3.8898633e+01   0.000000e+00   6.880096e+04      5s
   47198    3.8784587e+01   0.000000e+00   4.512023e+03     10s
   70728    3.9000000e+01   0.000000e+00   0.000000e+00     15s
   70728    3.9000000e+01   0.000000e+00   0.000000e+00     15s
   70728    3.9000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 3.900000e+01, 70728 iterations, 13.08 seconds (9.60 work units)
Total elapsed time = 25.46s (DegenMoves)

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

     0     0   39.00000    0  389    7.00000   39.00000   457%     -   29s
H    0     0                      10.0000000   39.00000   290%     -   29s
     0     0   39.00000    0  641   10.00000   39.00000   290%     -   45s
     0     0   39.00000    0  663   10.00000   39.00000   290%     -   48s

Cutting planes:
  Gomory: 3
  Cover: 16
  Clique: 14
  MIR: 91
  GUB cover: 1
  Zero half: 26
  RLT: 23
  BQP: 1

Explored 1 nodes (90242 simplex iterations) in 50.03 seconds (50.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.900000000000e+01, gap 290.0000%

Wrote result file './lp_solutions/grafo5286.37.sol'

