
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:41:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7096.45.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/grafo7096.45.lp
Reading time = 0.17 seconds
: 105166 rows, 2720 columns, 317817 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 105166 rows, 2720 columns and 317817 nonzeros
Model fingerprint: 0xe9207938
Variable types: 52 continuous, 2668 integer (2668 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 19624 rows and 33 columns
Presolve time: 0.72s
Presolved: 85542 rows, 2687 columns, 259499 nonzeros
Variable types: 0 continuous, 2687 integer (2635 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2684 rows, 88226 columns, 262186 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21330    5.8885121e+01   0.000000e+00   2.513947e+04      5s
   41350    5.8867298e+01   0.000000e+00   1.490166e+04     10s
   57088    5.9000000e+01   0.000000e+00   0.000000e+00     14s
   57088    5.9000000e+01   0.000000e+00   0.000000e+00     14s
   57088    5.9000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.900000e+01, 57088 iterations, 13.36 seconds (10.87 work units)
Total elapsed time = 35.01s (DegenMoves)
Total elapsed time = 42.50s (DegenMoves)

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

     0     0   59.00000    0  689    7.00000   59.00000   743%     -   45s
H    0     0                       9.0000000   59.00000   556%     -   45s
H    0     0                      11.0000000   59.00000   436%     -   45s
     0     0          -    0        11.00000   59.00000   436%     -   50s

Cutting planes:
  Gomory: 35
  Cover: 52
  MIR: 139
  StrongCG: 1
  GUB cover: 5
  Zero half: 47
  RLT: 49

Explored 1 nodes (83432 simplex iterations) in 50.02 seconds (51.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 9 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.900000000000e+01, gap 436.3636%

Wrote result file './lp_solutions/grafo7096.45.sol'

