
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:34:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7760.46.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/grafo7760.46.lp
Reading time = 0.26 seconds
: 100647 rows, 2543 columns, 304020 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 100647 rows, 2543 columns and 304020 nonzeros
Model fingerprint: 0x10a59d34
Variable types: 49 continuous, 2494 integer (2494 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 18933 rows and 27 columns
Presolve time: 0.80s
Presolved: 81714 rows, 2516 columns, 247581 nonzeros
Variable types: 0 continuous, 2516 integer (2467 binary)
Root relaxation presolved: 2516 rows, 84230 columns, 250097 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19864    4.4745302e+01   0.000000e+00   3.597290e+04      5s
   37816    4.4725628e+01   0.000000e+00   2.613910e+02     10s
   40786    4.5000000e+01   0.000000e+00   0.000000e+00     11s
   40786    4.5000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.500000e+01, 40786 iterations, 10.15 seconds (6.29 work units)
Total elapsed time = 23.20s (DegenMoves)
Total elapsed time = 38.43s (DegenMoves)
Total elapsed time = 40.63s (DegenMoves)

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

     0     0   45.00000    0  412          -   45.00000      -     -   42s
H    0     0                       8.0000000   45.00000   462%     -   42s
H    0     0                      10.0000000   45.00000   350%     -   43s
     0     0          -    0        10.00000   45.00000   350%     -   50s

Cutting planes:
  Gomory: 34
  Cover: 41
  Clique: 23
  MIR: 228
  StrongCG: 1
  GUB cover: 3
  Zero half: 38
  RLT: 62
  BQP: 6

Explored 1 nodes (74918 simplex iterations) in 50.02 seconds (49.70 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo7760.46.sol'

