
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:05:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6245.38.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/grafo6245.38.lp
Reading time = 0.14 seconds
: 86030 rows, 2114 columns, 259983 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 86030 rows, 2114 columns and 259983 nonzeros
Model fingerprint: 0xf3fe1968
Variable types: 47 continuous, 2067 integer (2067 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]
Found heuristic solution: objective 2.0000000
Presolve removed 20852 rows and 28 columns
Presolve time: 0.62s
Presolved: 65178 rows, 2086 columns, 197806 nonzeros
Variable types: 0 continuous, 2086 integer (2039 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2086 rows, 67264 columns, 199892 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27080    4.4760383e+01   0.000000e+00   1.004438e+03      5s
   27564    4.5000000e+01   0.000000e+00   0.000000e+00      5s
   27564    4.5000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.500000e+01, 27564 iterations, 4.41 seconds (3.65 work units)
Total elapsed time = 10.95s (DegenMoves)

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

     0     0   45.00000    0  460    5.00000   45.00000   800%     -   11s
H    0     0                       7.0000000   45.00000   543%     -   12s
     0     0   45.00000    0  696    7.00000   45.00000   543%     -   19s
     0     0   45.00000    0  693    7.00000   45.00000   543%     -   20s
     0     0   45.00000    0  657    7.00000   45.00000   543%     -   49s
H    0     0                      10.0000000   45.00000   350%     -   49s

Cutting planes:
  Gomory: 1
  Lift-and-project: 2
  Cover: 1
  Clique: 9
  MIR: 26
  Zero half: 1
  RLT: 20
  BQP: 3
  PSD: 1

Explored 1 nodes (58111 simplex iterations) in 50.10 seconds (44.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 7 5 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo6245.38.sol'

