
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 01:06:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo784.18.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/grafo784.18.lp
Reading time = 0.17 seconds
: 93945 rows, 620 columns, 282253 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 93945 rows, 620 columns and 282253 nonzeros
Model fingerprint: 0x6bde9db7
Variable types: 21 continuous, 599 integer (599 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 -0.0000000
Presolve removed 48303 rows and 2 columns
Presolve time: 0.68s
Presolved: 45642 rows, 618 columns, 137548 nonzeros
Variable types: 0 continuous, 618 integer (597 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 617 rows, 46259 columns, 138166 nonzeros


Root relaxation: objective 2.200000e+01, 943 iterations, 0.42 seconds (0.48 work units)

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

     0     0   22.00000    0  254    6.00000   22.00000   267%     -    3s
     0     0   22.00000    0  262    6.00000   22.00000   267%     -    5s
     0     0   22.00000    0  271    6.00000   22.00000   267%     -    6s
     0     0   22.00000    0  141    6.00000   22.00000   267%     -   11s
     0     0   22.00000    0  136    6.00000   22.00000   267%     -   12s
H    0     0                       7.0000000   22.00000   214%     -   17s
     0     0   22.00000    0  164    7.00000   22.00000   214%     -   17s
     0     0   22.00000    0  189    7.00000   22.00000   214%     -   18s
     0     0   22.00000    0  242    7.00000   22.00000   214%     -   23s
     0     0   22.00000    0  239    7.00000   22.00000   214%     -   23s
     0     0   22.00000    0  242    7.00000   22.00000   214%     -   26s
H    0     0                       8.0000000   22.00000   175%     -   26s
     0     0   22.00000    0  234    8.00000   22.00000   175%     -   26s
     0     0   22.00000    0  227    8.00000   22.00000   175%     -   29s
     0     0   22.00000    0  218    8.00000   22.00000   175%     -   29s
     0     0   22.00000    0  220    8.00000   22.00000   175%     -   33s
     0     0   22.00000    0  218    8.00000   22.00000   175%     -   34s
     0     2   22.00000    0  119    8.00000   22.00000   175%     -   38s
     7    12   22.00000    3  137    8.00000   22.00000   175%   626   40s
    61    88   22.00000   14  141    8.00000   22.00000   175%   239   45s
   115   168   22.00000   22  122    8.00000   22.00000   175%   232   50s

Cutting planes:
  Cover: 6
  Clique: 21
  MIR: 27
  StrongCG: 4
  Zero half: 2
  RLT: 28
  BQP: 2

Explored 167 nodes (63429 simplex iterations) in 50.08 seconds (59.74 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 8 7 6 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 2.200000000000e+01, gap 175.0000%

Wrote result file './lp_solutions/grafo784.18.sol'

