
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:01:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3145.36.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/grafo3145.36.lp
Reading time = 0.14 seconds
: 85438 rows, 1702 columns, 257645 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 85438 rows, 1702 columns and 257645 nonzeros
Model fingerprint: 0x5f81181d
Variable types: 39 continuous, 1663 integer (1663 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 29073 rows and 19 columns
Presolve time: 0.57s
Presolved: 56365 rows, 1683 columns, 170751 nonzeros
Variable types: 0 continuous, 1683 integer (1644 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1683 rows, 58048 columns, 172434 nonzeros


Root relaxation: objective 3.700000e+01, 2725 iterations, 0.97 seconds (1.21 work units)
Total elapsed time = 8.30s (DegenMoves)

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

     0     0   37.00000    0  628    6.00000   37.00000   517%     -   17s
H    0     0                       8.0000000   37.00000   362%     -   20s
     0     0   37.00000    0  741    8.00000   37.00000   362%     -   29s
     0     0   37.00000    0  716    8.00000   37.00000   362%     -   31s
     0     0   37.00000    0  468    8.00000   37.00000   362%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 12
  Clique: 24
  MIR: 91
  Zero half: 43
  RLT: 62
  BQP: 3

Explored 1 nodes (46127 simplex iterations) in 50.08 seconds (54.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 6 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.700000000000e+01, gap 362.5000%

Wrote result file './lp_solutions/grafo3145.36.sol'

