
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:27:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3528.45.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/grafo3528.45.lp
Reading time = 0.12 seconds
: 73664 rows, 2245 columns, 222600 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 73664 rows, 2245 columns and 222600 nonzeros
Model fingerprint: 0xec2e5cf7
Variable types: 44 continuous, 2201 integer (2201 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 11021 rows and 27 columns
Presolve time: 0.49s
Presolved: 62643 rows, 2218 columns, 189985 nonzeros
Variable types: 0 continuous, 2218 integer (2174 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 2218 rows, 64861 columns, 192203 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29087    3.9944244e+01   0.000000e+00   2.728582e+03      5s
   35387    4.0000000e+01   0.000000e+00   0.000000e+00      6s
   35387    4.0000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.000000e+01, 35387 iterations, 5.62 seconds (4.68 work units)
Total elapsed time = 10.56s (DegenMoves)

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

     0     0   40.00000    0  371    3.00000   40.00000  1233%     -   11s
H    0     0                       6.0000000   40.00000   567%     -   11s
H    0     0                      11.0000000   40.00000   264%     -   11s
     0     0   40.00000    0  672   11.00000   40.00000   264%     -   17s
     0     0   40.00000    0  646   11.00000   40.00000   264%     -   19s
     0     0   40.00000    0  670   11.00000   40.00000   264%     -   33s
     0     0   40.00000    0  650   11.00000   40.00000   264%     -   34s
     0     0   40.00000    0  531   11.00000   40.00000   264%     -   45s
     0     0   40.00000    0  572   11.00000   40.00000   264%     -   47s
     0     0          -    0        11.00000   40.00000   264%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 26
  Clique: 9
  MIR: 140
  StrongCG: 2
  GUB cover: 2
  Zero half: 83
  RLT: 65
  BQP: 3

Explored 1 nodes (79306 simplex iterations) in 50.06 seconds (44.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 6 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.000000000000e+01, gap 263.6364%

Wrote result file './lp_solutions/grafo3528.45.sol'

