
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:09:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6165.43.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/grafo6165.43.lp
Reading time = 0.21 seconds
: 116941 rows, 2237 columns, 352568 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 116941 rows, 2237 columns and 352568 nonzeros
Model fingerprint: 0xb2ed4dfa
Variable types: 44 continuous, 2193 integer (2193 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 36517 rows and 10 columns
Presolve time: 0.77s
Presolved: 80424 rows, 2227 columns, 243366 nonzeros
Variable types: 0 continuous, 2227 integer (2183 binary)
Root relaxation presolved: 2223 rows, 82647 columns, 245593 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25031    4.4920719e+01   0.000000e+00   2.892754e+03      5s
   48588    4.4912137e+01   0.000000e+00   1.540934e+01     10s
   50315    4.5000000e+01   0.000000e+00   0.000000e+00     10s
   50315    4.5000000e+01   0.000000e+00   0.000000e+00     10s
   50315    4.5000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.500000e+01, 50315 iterations, 9.52 seconds (8.77 work units)
Total elapsed time = 20.15s (DegenMoves)

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

     0     0   45.00000    0  398          -   45.00000      -     -   21s
H    0     0                       6.0000000   45.00000   650%     -   23s
     0     0   45.00000    0  624    6.00000   45.00000   650%     -   29s
H    0     0                       8.0000000   45.00000   462%     -   30s
     0     0   45.00000    0  619    8.00000   45.00000   462%     -   30s
     0     0   45.00000    0  617    8.00000   45.00000   462%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 38
  Cover: 6
  Clique: 23
  MIR: 95
  Zero half: 39
  RLT: 47
  BQP: 3

Explored 1 nodes (83025 simplex iterations) in 50.03 seconds (55.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 6 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.500000000000e+01, gap 462.5000%

Wrote result file './lp_solutions/grafo6165.43.sol'

