
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:55:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7553.36.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/grafo7553.36.lp
Reading time = 0.14 seconds
: 86241 rows, 2120 columns, 260638 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 86241 rows, 2120 columns and 260638 nonzeros
Model fingerprint: 0x22cea4e1
Variable types: 48 continuous, 2072 integer (2072 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 22304 rows and 27 columns
Presolve time: 0.60s
Presolved: 63937 rows, 2093 columns, 194103 nonzeros
Variable types: 0 continuous, 2093 integer (2045 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2093 rows, 66030 columns, 196196 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23914    5.8845445e+01   0.000000e+00   7.666188e+03      5s
   43081    5.9000000e+01   0.000000e+00   0.000000e+00      9s
   43081    5.9000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 5.900000e+01, 43081 iterations, 8.13 seconds (6.30 work units)
Total elapsed time = 19.54s (DegenMoves)
Total elapsed time = 21.52s (DegenMoves)

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

     0     0   59.00000    0  732    8.00000   59.00000   638%     -   24s
H    0     0                      10.0000000   59.00000   490%     -   24s
     0     0          -    0        10.00000   59.00000   490%     -   50s

Cutting planes:
  Gomory: 22
  Cover: 19
  Clique: 22
  MIR: 143
  StrongCG: 1
  GUB cover: 4
  Zero half: 19
  RLT: 40
  BQP: 2

Explored 1 nodes (71605 simplex iterations) in 50.08 seconds (45.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 -0 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.900000000000e+01, gap 490.0000%

Wrote result file './lp_solutions/grafo7553.36.sol'

