
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:10:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5155.36.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/grafo5155.36.lp
Reading time = 0.25 seconds
: 152491 rows, 1991 columns, 459242 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 152491 rows, 1991 columns and 459242 nonzeros
Model fingerprint: 0xf500daa4
Variable types: 44 continuous, 1947 integer (1947 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 60404 rows and 16 columns
Presolve time: 1.06s
Presolved: 92087 rows, 1975 columns, 278438 nonzeros
Variable types: 0 continuous, 1975 integer (1931 binary)
Root relaxation presolved: 1966 rows, 94053 columns, 280413 nonzeros


Root relaxation: objective 3.900000e+01, 2452 iterations, 0.86 seconds (1.03 work units)
Total elapsed time = 9.99s (DegenMoves)
Total elapsed time = 10.85s (DegenMoves)

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

     0     0   39.00000    0  414          -   39.00000      -     -   12s
H    0     0                       4.0000000   39.00000   875%     -   12s
H    0     0                       7.0000000   39.00000   457%     -   12s
     0     0   39.00000    0  762    7.00000   39.00000   457%     -   27s
     0     0   39.00000    0  737    7.00000   39.00000   457%     -   28s
     0     0   39.00000    0  679    7.00000   39.00000   457%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 29
  Cover: 10
  Clique: 19
  MIR: 90
  GUB cover: 1
  Zero half: 37
  RLT: 56
  BQP: 2

Explored 1 nodes (30857 simplex iterations) in 50.03 seconds (52.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 4 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.900000000000e+01, gap 457.1429%

Wrote result file './lp_solutions/grafo5155.36.sol'

