
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:06:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2446.46.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/grafo2446.46.lp
Reading time = 0.24 seconds
: 153932 rows, 2747 columns, 464205 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 153932 rows, 2747 columns and 464205 nonzeros
Model fingerprint: 0xa4f0153d
Variable types: 52 continuous, 2695 integer (2695 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 43661 rows and 21 columns
Presolve time: 1.03s
Presolved: 110271 rows, 2726 columns, 333579 nonzeros
Variable types: 0 continuous, 2726 integer (2674 binary)
Root relaxation presolved: 2709 rows, 112980 columns, 336305 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17846    4.6879737e+01   0.000000e+00   1.402225e+05      5s
   39015    4.4763059e+01   0.000000e+00   3.243054e+03     10s
   58671    4.4750889e+01   0.000000e+00   3.620682e+02     15s
   62412    4.5000000e+01   0.000000e+00   0.000000e+00     16s
   62412    4.5000000e+01   0.000000e+00   0.000000e+00     16s
   62412    4.5000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.500000e+01, 62412 iterations, 14.88 seconds (11.89 work units)
Total elapsed time = 30.39s (DegenMoves)

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

     0     0   45.00000    0  559          -   45.00000      -     -   33s
H    0     0                       9.0000000   45.00000   400%     -   33s
     0     0   45.00000    0  813    9.00000   45.00000   400%     -   47s
     0     0  postponed    0         9.00000   45.00000   400%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 3
  Clique: 6
  MIR: 80
  Zero half: 7
  RLT: 19

Explored 1 nodes (84477 simplex iterations) in 50.03 seconds (48.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.500000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo2446.46.sol'

