
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:10:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7067.44.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/grafo7067.44.lp
Reading time = 0.19 seconds
: 115327 rows, 2322 columns, 347722 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 115327 rows, 2322 columns and 347722 nonzeros
Model fingerprint: 0x5f935ea7
Variable types: 45 continuous, 2277 integer (2277 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 34483 rows and 22 columns
Presolve time: 0.81s
Presolved: 80844 rows, 2300 columns, 244614 nonzeros
Variable types: 0 continuous, 2300 integer (2255 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 2300 rows, 83144 columns, 246914 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23980    5.4835326e+01   0.000000e+00   1.451208e+04      5s
   36235    5.5000000e+01   0.000000e+00   0.000000e+00      7s
   36235    5.5000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 5.500000e+01, 36235 iterations, 6.29 seconds (5.02 work units)
Total elapsed time = 20.45s (DegenMoves)

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

     0     0   55.00000    0  660    4.00000   55.00000  1275%     -   24s
H    0     0                       5.0000000   55.00000  1000%     -   24s
     0     0   55.00000    0  878    5.00000   55.00000  1000%     -   36s
     0     0   55.00000    0  837    5.00000   55.00000  1000%     -   37s
     0     0   55.00000    0  819    5.00000   55.00000  1000%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 30
  Cover: 15
  Clique: 21
  MIR: 136
  StrongCG: 2
  GUB cover: 1
  Zero half: 34
  RLT: 98
  BQP: 2
  PSD: 2

Explored 1 nodes (65454 simplex iterations) in 50.04 seconds (50.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 5 4 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.500000000000e+01, gap 1000.0000%

Wrote result file './lp_solutions/grafo7067.44.sol'

