
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:30:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1096.44.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/grafo1096.44.lp
Reading time = 0.31 seconds
: 162070 rows, 2650 columns, 488518 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 162070 rows, 2650 columns and 488518 nonzeros
Model fingerprint: 0x0c42762b
Variable types: 50 continuous, 2600 integer (2600 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 56987 rows and 19 columns
Presolve time: 1.29s
Presolved: 105083 rows, 2631 columns, 318238 nonzeros
Variable types: 0 continuous, 2631 integer (2581 binary)
Root relaxation presolved: 2625 rows, 107708 columns, 320869 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15191    4.7735449e+01   0.000000e+00   5.588184e+04      5s
   32026    4.7686879e+01   0.000000e+00   3.522059e+03     10s
   37753    4.8000000e+01   0.000000e+00   0.000000e+00     12s
   37753    4.8000000e+01   0.000000e+00   0.000000e+00     12s
   37753    4.8000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.800000e+01, 37753 iterations, 10.33 seconds (6.66 work units)
Total elapsed time = 22.66s (DegenMoves)
Total elapsed time = 25.37s (DegenMoves)

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

     0     0   48.00000    0  426          -   48.00000      -     -   26s
H    0     0                       9.0000000   48.00000   433%     -   26s
     0     0          -    0         9.00000   48.00000   433%     -   50s

Cutting planes:
  Gomory: 30
  Cover: 53
  Clique: 24
  MIR: 135
  GUB cover: 7
  Zero half: 93
  RLT: 61
  BQP: 1

Explored 1 nodes (57629 simplex iterations) in 50.03 seconds (42.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.800000000000e+01, gap 433.3333%

Wrote result file './lp_solutions/grafo1096.44.sol'

