
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:37:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6576.49.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/grafo6576.49.lp
Reading time = 0.22 seconds
: 125845 rows, 2778 columns, 379744 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 125845 rows, 2778 columns and 379744 nonzeros
Model fingerprint: 0x0dc53683
Variable types: 50 continuous, 2728 integer (2728 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 30622 rows and 32 columns
Presolve time: 0.98s
Presolved: 95223 rows, 2746 columns, 288340 nonzeros
Variable types: 0 continuous, 2746 integer (2696 binary)
Root relaxation presolved: 2746 rows, 97969 columns, 291086 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18374    4.6967815e+01   0.000000e+00   2.018008e+04      5s
   38248    4.6949009e+01   0.000000e+00   1.704785e+04     10s
   55528    4.6946124e+01   0.000000e+00   1.119125e+02     15s
   60101    4.7000000e+01   0.000000e+00   0.000000e+00     16s
   60101    4.7000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.700000e+01, 60101 iterations, 15.25 seconds (13.46 work units)
Total elapsed time = 30.76s (DegenMoves)

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

     0     0   47.00000    0  523          -   47.00000      -     -   32s
H    0     0                       8.0000000   47.00000   488%     -   35s
     0     0   47.00000    0  815    8.00000   47.00000   488%     -   45s
H    0     0                      10.0000000   47.00000   370%     -   46s
     0     0   47.00000    0  736   10.00000   47.00000   370%     -   48s

Cutting planes:
  Gomory: 6
  Lift-and-project: 3
  Cover: 20
  Clique: 16
  MIR: 96
  StrongCG: 1
  GUB cover: 1
  Zero half: 114
  RLT: 18
  BQP: 1
  PSD: 1

Explored 1 nodes (81107 simplex iterations) in 50.21 seconds (44.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.700000000000e+01, gap 370.0000%

Wrote result file './lp_solutions/grafo6576.49.sol'

