
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 01:43:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1440.24.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/grafo1440.24.lp
Reading time = 0.25 seconds
: 148801 rows, 955 columns, 447122 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 148801 rows, 955 columns and 447122 nonzeros
Model fingerprint: 0x0494baf9
Variable types: 27 continuous, 928 integer (928 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 81552 rows and 3 columns
Presolve time: 1.03s
Presolved: 67249 rows, 952 columns, 202780 nonzeros
Variable types: 0 continuous, 952 integer (925 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 948 rows, 68197 columns, 203732 nonzeros


Root relaxation: objective 3.000000e+01, 1315 iterations, 0.57 seconds (0.75 work units)
Total elapsed time = 6.82s (DegenMoves)

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

     0     0   30.00000    0  216    5.00000   30.00000   500%     -    8s
H    0     0                       6.0000000   30.00000   400%     -    8s
H    0     0                       8.0000000   30.00000   275%     -    9s
     0     0   30.00000    0  420    8.00000   30.00000   275%     -   11s
     0     0   30.00000    0  401    8.00000   30.00000   275%     -   12s
H    0     0                       9.0000000   30.00000   233%     -   24s
     0     0   30.00000    0  253    9.00000   30.00000   233%     -   24s
     0     0   30.00000    0  243    9.00000   30.00000   233%     -   25s
     0     0   30.00000    0  271    9.00000   30.00000   233%     -   33s
     0     0   30.00000    0  215    9.00000   30.00000   233%     -   34s
     0     0   30.00000    0  344    9.00000   30.00000   233%     -   46s
     0     0   30.00000    0  332    9.00000   30.00000   233%     -   46s
     0     0          -    0         9.00000   30.00000   233%     -   50s

Cutting planes:
  Cover: 20
  Clique: 23
  MIR: 84
  StrongCG: 3
  Zero half: 26
  RLT: 56
  BQP: 4

Explored 1 nodes (34507 simplex iterations) in 50.08 seconds (52.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 6 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.000000000000e+01, gap 233.3333%

Wrote result file './lp_solutions/grafo1440.24.sol'

