
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:37:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7165.40.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/grafo7165.40.lp
Reading time = 0.20 seconds
: 123699 rows, 2479 columns, 373400 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 123699 rows, 2479 columns and 373400 nonzeros
Model fingerprint: 0x3646213e
Variable types: 51 continuous, 2428 integer (2428 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 35080 rows and 26 columns
Presolve time: 0.92s
Presolved: 88619 rows, 2453 columns, 268639 nonzeros
Variable types: 0 continuous, 2453 integer (2402 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2450 rows, 91069 columns, 271092 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20500    5.2704875e+01   0.000000e+00   6.699027e+04      5s
   43348    5.2680510e+01   0.000000e+00   1.416785e+04     10s
   53987    5.3000000e+01   0.000000e+00   0.000000e+00     12s
   53987    5.3000000e+01   0.000000e+00   0.000000e+00     12s
   53987    5.3000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.300000e+01, 53987 iterations, 11.34 seconds (9.14 work units)
Total elapsed time = 30.74s (DegenMoves)
Total elapsed time = 36.53s (DegenMoves)

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

     0     0   53.00000    0  860    7.00000   53.00000   657%     -   38s
     0     0          -    0         7.00000   53.00000   657%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 33
  Clique: 29
  MIR: 177
  GUB cover: 5
  Zero half: 22
  RLT: 48
  BQP: 3

Explored 1 nodes (77106 simplex iterations) in 50.02 seconds (49.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.300000000000e+01, gap 657.1429%

Wrote result file './lp_solutions/grafo7165.40.sol'

