
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:32:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7093.36.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/grafo7093.36.lp
Reading time = 0.16 seconds
: 98184 rows, 2107 columns, 296492 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 98184 rows, 2107 columns and 296492 nonzeros
Model fingerprint: 0x44666455
Variable types: 48 continuous, 2059 integer (2059 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 28013 rows and 33 columns
Presolve time: 0.73s
Presolved: 70171 rows, 2074 columns, 212832 nonzeros
Variable types: 0 continuous, 2074 integer (2026 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2074 rows, 72245 columns, 214906 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23354    4.7765041e+01   0.000000e+00   2.621730e+04      5s
   49412    4.7745950e+01   0.000000e+00   9.477995e+03     10s
   68540    4.8000000e+01   0.000000e+00   0.000000e+00     14s
   68540    4.8000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.800000e+01, 68540 iterations, 12.90 seconds (9.31 work units)
Total elapsed time = 26.62s (DegenMoves)
Total elapsed time = 30.67s (DegenMoves)

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

     0     0   48.00000    0  445   10.00000   48.00000   380%     -   33s
H    0     0                      11.0000000   48.00000   336%     -   33s
H    0     0                      12.0000000   48.00000   300%     -   34s
     0     0   48.00000    0  717   12.00000   48.00000   300%     -   43s
     0     0   48.00000    0  725   12.00000   48.00000   300%     -   48s

Cutting planes:
  Gomory: 3
  Cover: 27
  Clique: 15
  MIR: 168
  StrongCG: 3
  GUB cover: 3
  Zero half: 20
  RLT: 53
  BQP: 1

Explored 1 nodes (96062 simplex iterations) in 50.12 seconds (46.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 10 -0 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.800000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo7093.36.sol'

