
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:11:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5258.36.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/grafo5258.36.lp
Reading time = 0.22 seconds
: 134985 rows, 1944 columns, 406583 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 134985 rows, 1944 columns and 406583 nonzeros
Model fingerprint: 0x88402cee
Variable types: 43 continuous, 1901 integer (1901 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 57902 rows and 24 columns
Presolve time: 0.98s
Presolved: 77083 rows, 1920 columns, 233347 nonzeros
Variable types: 0 continuous, 1920 integer (1877 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1920 rows, 79003 columns, 235267 nonzeros


Root relaxation: objective 5.000000e+01, 2312 iterations, 0.75 seconds (0.89 work units)
Total elapsed time = 9.09s (DegenMoves)
Total elapsed time = 10.30s (DegenMoves)

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

     0     0   50.00000    0  534    8.00000   50.00000   525%     -   11s
H    0     0                       9.0000000   50.00000   456%     -   11s
H    0     0                      10.0000000   50.00000   400%     -   11s
     0     0   50.00000    0  759   10.00000   50.00000   400%     -   21s
     0     0   50.00000    0  785   10.00000   50.00000   400%     -   22s
     0     0   50.00000    0  862   10.00000   50.00000   400%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 30
  Cover: 14
  Clique: 15
  MIR: 101
  StrongCG: 2
  Zero half: 13
  RLT: 59
  BQP: 1

Explored 1 nodes (36010 simplex iterations) in 50.02 seconds (52.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.000000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo5258.36.sol'

