
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:18:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7047.43.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/grafo7047.43.lp
Reading time = 0.31 seconds
: 194291 rows, 2456 columns, 584970 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 194291 rows, 2456 columns and 584970 nonzeros
Model fingerprint: 0x35b44b15
Variable types: 49 continuous, 2407 integer (2407 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 72258 rows and 31 columns
Presolve time: 1.47s
Presolved: 122033 rows, 2425 columns, 368530 nonzeros
Variable types: 0 continuous, 2425 integer (2376 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2416 rows, 124449 columns, 370955 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19011    5.5331429e+01   0.000000e+00   5.969962e+04      5s
   41686    4.2842603e+01   0.000000e+00   1.707231e+05     10s
   65385    4.2789714e+01   0.000000e+00   9.494749e+03     15s
   85594    4.3000000e+01   0.000000e+00   0.000000e+00     19s
   85594    4.3000000e+01   0.000000e+00   0.000000e+00     19s
   85594    4.3000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 4.300000e+01, 85594 iterations, 17.67 seconds (14.10 work units)
Total elapsed time = 36.87s (DegenMoves)
Total elapsed time = 42.04s (DegenMoves)

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

     0     0   43.00000    0  576    5.00000   43.00000   760%     -   43s
H    0     0                       7.0000000   43.00000   514%     -   43s
     0     0          -    0         7.00000   43.00000   514%     -   50s

Cutting planes:
  Gomory: 28
  Cover: 36
  Clique: 37
  MIR: 119
  StrongCG: 1
  GUB cover: 8
  Zero half: 32
  RLT: 72
  BQP: 1

Explored 1 nodes (102907 simplex iterations) in 50.02 seconds (51.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 5 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.300000000000e+01, gap 514.2857%

Wrote result file './lp_solutions/grafo7047.43.sol'

