
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:27:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2497.49.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/grafo2497.49.lp
Reading time = 0.24 seconds
: 144312 rows, 2937 columns, 435418 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 144312 rows, 2937 columns and 435418 nonzeros
Model fingerprint: 0x7fbb3756
Variable types: 53 continuous, 2884 integer (2884 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 33772 rows and 31 columns
Presolve time: 1.13s
Presolved: 110540 rows, 2906 columns, 334471 nonzeros
Variable types: 0 continuous, 2906 integer (2853 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2900 rows, 113440 columns, 337377 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16832    4.7941803e+01   0.000000e+00   2.221072e+06      5s
   35159    4.7787301e+01   0.000000e+00   2.722404e+04     10s
   51994    4.7769136e+01   0.000000e+00   4.888211e+04     15s
   63938    4.8000000e+01   0.000000e+00   0.000000e+00     19s
   63938    4.8000000e+01   0.000000e+00   0.000000e+00     19s
   63938    4.8000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 4.800000e+01, 63938 iterations, 17.41 seconds (12.19 work units)
Total elapsed time = 34.14s (DegenMoves)
Total elapsed time = 36.42s (DegenMoves)

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

     0     0   48.00000    0  475    7.00000   48.00000   586%     -   37s
H    0     0                       9.0000000   48.00000   433%     -   37s
H    0     0                      10.0000000   48.00000   380%     -   37s
     0     0   48.00000    0  757   10.00000   48.00000   380%     -   49s

Cutting planes:
  Gomory: 9
  Cover: 1
  Clique: 13
  MIR: 38
  GUB cover: 1
  Zero half: 5
  RLT: 23

Explored 1 nodes (84013 simplex iterations) in 50.06 seconds (43.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.800000000000e+01, gap 380.0000%

Wrote result file './lp_solutions/grafo2497.49.sol'

