
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:07:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5183.42.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/grafo5183.42.lp
Reading time = 0.25 seconds
: 158929 rows, 2578 columns, 479076 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 158929 rows, 2578 columns and 479076 nonzeros
Model fingerprint: 0x675f37d8
Variable types: 50 continuous, 2528 integer (2528 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 57015 rows and 13 columns
Presolve time: 0.97s
Presolved: 101914 rows, 2565 columns, 308561 nonzeros
Variable types: 0 continuous, 2565 integer (2515 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2560 rows, 104474 columns, 311126 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19201    5.8850216e+01   0.000000e+00   8.626116e+04      5s
   41993    5.8715009e+01   0.000000e+00   6.689033e+04     10s
   61075    5.9000000e+01   0.000000e+00   0.000000e+00     14s
   61075    5.9000000e+01   0.000000e+00   0.000000e+00     14s
   61075    5.9000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.900000e+01, 61075 iterations, 13.30 seconds (10.73 work units)
Total elapsed time = 32.30s (DegenMoves)
Total elapsed time = 36.05s (DegenMoves)

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

     0     0   59.00000    0  773    8.00000   59.00000   637%     -   38s
     0     0          -    0         8.00000   59.00000   637%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 27
  Clique: 36
  MIR: 101
  Zero half: 60
  RLT: 52
  BQP: 6

Explored 1 nodes (81939 simplex iterations) in 50.02 seconds (49.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.900000000000e+01, gap 637.5000%

Wrote result file './lp_solutions/grafo5183.42.sol'

