
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:39:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6587.45.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/grafo6587.45.lp
Reading time = 0.11 seconds
: 67390 rows, 2348 columns, 204038 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 67390 rows, 2348 columns and 204038 nonzeros
Model fingerprint: 0x4d05cf08
Variable types: 47 continuous, 2301 integer (2301 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 4051 rows and 36 columns
Presolve time: 0.46s
Presolved: 63339 rows, 2312 columns, 192191 nonzeros
Variable types: 0 continuous, 2312 integer (2265 binary)
Root relaxation presolved: 2312 rows, 65651 columns, 194503 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27330    3.9976418e+01   0.000000e+00   2.341965e+02      5s
   30392    4.0000000e+01   0.000000e+00   0.000000e+00      6s
   30392    4.0000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.000000e+01, 30392 iterations, 5.00 seconds (4.14 work units)
Total elapsed time = 10.97s (DegenMoves)

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

     0     0   40.00000    0  389          -   40.00000      -     -   13s
H    0     0                       7.0000000   40.00000   471%     -   15s
     0     0   40.00000    0  559    7.00000   40.00000   471%     -   17s
H    0     0                       9.0000000   40.00000   344%     -   18s
H    0     0                      13.0000000   40.00000   208%     -   18s
     0     0   40.00000    0  549   13.00000   40.00000   208%     -   18s
H    0     0                      14.0000000   40.00000   186%     -   30s
     0     0   40.00000    0  293   14.00000   40.00000   186%     -   30s
     0     0   40.00000    0  284   14.00000   40.00000   186%     -   30s
H    0     0                      15.0000000   40.00000   167%     -   42s
H    0     0                      16.0000000   40.00000   150%     -   42s
     0     0   40.00000    0  424   16.00000   40.00000   150%     -   43s
     0     0   40.00000    0  428   16.00000   40.00000   150%     -   43s
     0     0   40.00000    0  522   16.00000   40.00000   150%     -   50s

Cutting planes:
  Cover: 24
  Clique: 5
  MIR: 150
  StrongCG: 1
  Inf proof: 1
  Zero half: 37
  RLT: 49

Explored 1 nodes (79393 simplex iterations) in 50.10 seconds (41.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 16 15 14 ... 7

Time limit reached
Best objective 1.600000000000e+01, best bound 4.000000000000e+01, gap 150.0000%

Wrote result file './lp_solutions/grafo6587.45.sol'

