
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:05:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7267.39.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/grafo7267.39.lp
Reading time = 0.12 seconds
: 72185 rows, 2148 columns, 218459 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 72185 rows, 2148 columns and 218459 nonzeros
Model fingerprint: 0x010e29ea
Variable types: 46 continuous, 2102 integer (2102 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 14613 rows and 26 columns
Presolve time: 0.49s
Presolved: 57572 rows, 2122 columns, 175182 nonzeros
Variable types: 0 continuous, 2122 integer (2076 binary)
Root relaxation presolved: 2122 rows, 59694 columns, 177304 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27414    3.9967843e+01   0.000000e+00   3.298042e+04      5s
   50479    4.0000000e+01   0.000000e+00   0.000000e+00     10s
   50479    4.0000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.000000e+01, 50479 iterations, 8.96 seconds (6.71 work units)
Total elapsed time = 15.39s (DegenMoves)

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

     0     0   40.00000    0  358          -   40.00000      -     -   16s
H    0     0                      10.0000000   40.00000   300%     -   16s
H    0     0                      13.0000000   40.00000   208%     -   17s
     0     0   40.00000    0  623   13.00000   40.00000   208%     -   22s
     0     0   40.00000    0  628   13.00000   40.00000   208%     -   23s
H    0     0                      14.0000000   40.00000   186%     -   40s
     0     0   40.00000    0  527   14.00000   40.00000   186%     -   40s
H    0     0                      15.0000000   40.00000   167%     -   41s
     0     0   40.00000    0  520   15.00000   40.00000   167%     -   41s
     0     0   40.00000    0  616   15.00000   40.00000   167%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 18
  Clique: 7
  MIR: 150
  StrongCG: 1
  Zero half: 58
  RLT: 63
  BQP: 3
  PSD: 2

Explored 1 nodes (88695 simplex iterations) in 50.06 seconds (40.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 13 10 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.000000000000e+01, gap 166.6667%

Wrote result file './lp_solutions/grafo7267.39.sol'

