
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:02:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5486.43.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/grafo5486.43.lp
Reading time = 0.16 seconds
: 99818 rows, 2332 columns, 301335 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 99818 rows, 2332 columns and 301335 nonzeros
Model fingerprint: 0x6f61ab62
Variable types: 47 continuous, 2285 integer (2285 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 2.0000000
Presolve removed 24417 rows and 22 columns
Presolve time: 0.73s
Presolved: 75401 rows, 2310 columns, 228460 nonzeros
Variable types: 0 continuous, 2310 integer (2263 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2310 rows, 77711 columns, 230770 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24571    4.8762097e+01   0.000000e+00   3.483817e+04      5s
   49255    4.8748772e+01   0.000000e+00   1.532555e+03     10s
   51710    4.9000000e+01   0.000000e+00   0.000000e+00     11s
   51710    4.9000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.900000e+01, 51710 iterations, 9.73 seconds (7.50 work units)
Total elapsed time = 20.29s (DegenMoves)

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

     0     0   49.00000    0  516   10.00000   49.00000   390%     -   22s
     0     0   49.00000    0  800   10.00000   49.00000   390%     -   35s
     0     0   49.00000    0  794   10.00000   49.00000   390%     -   37s
     0     0          -    0        10.00000   49.00000   390%     -   50s

Cutting planes:
  Gomory: 7
  Lift-and-project: 35
  Cover: 8
  Clique: 12
  MIR: 84
  GUB cover: 1
  Zero half: 50
  RLT: 64
  BQP: 2

Explored 1 nodes (76554 simplex iterations) in 50.12 seconds (42.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.900000000000e+01, gap 390.0000%

Wrote result file './lp_solutions/grafo5486.43.sol'

