
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:43:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo799.49.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/grafo799.49.lp
Reading time = 0.15 seconds
: 90357 rows, 2595 columns, 272989 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 90357 rows, 2595 columns and 272989 nonzeros
Model fingerprint: 0xef357a42
Variable types: 47 continuous, 2548 integer (2548 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 13044 rows and 66 columns
Presolve time: 0.72s
Presolved: 77313 rows, 2529 columns, 234292 nonzeros
Variable types: 0 continuous, 2529 integer (2482 binary)
Root relaxation presolved: 2529 rows, 79842 columns, 236821 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20721    3.7703659e+01   0.000000e+00   1.074359e+04      5s
   40441    3.7692659e+01   0.000000e+00   1.203061e+02     10s
   42188    3.8000000e+01   0.000000e+00   0.000000e+00     11s
   42188    3.8000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 3.800000e+01, 42188 iterations, 9.65 seconds (7.96 work units)
Total elapsed time = 21.37s (DegenMoves)

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

     0     0   38.00000    0  454          -   38.00000      -     -   23s
H    0     0                       6.0000000   38.00000   533%     -   25s
     0     0   38.00000    0  750    6.00000   38.00000   533%     -   32s
H    0     0                      11.0000000   38.00000   245%     -   33s
     0     0   38.00000    0  690   11.00000   38.00000   245%     -   33s
     0     0   38.00000    0  778   11.00000   38.00000   245%     -   50s

Cutting planes:
  Gomory: 7
  Lift-and-project: 26
  Cover: 15
  Clique: 5
  MIR: 86
  StrongCG: 2
  GUB cover: 2
  Zero half: 58
  RLT: 30
  PSD: 1

Explored 1 nodes (72276 simplex iterations) in 50.04 seconds (41.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 6 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.800000000000e+01, gap 245.4545%

Wrote result file './lp_solutions/grafo799.49.sol'

