
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:04:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7711.45.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/grafo7711.45.lp
Reading time = 0.13 seconds
: 83838 rows, 2142 columns, 252990 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 83838 rows, 2142 columns and 252990 nonzeros
Model fingerprint: 0xf5172490
Variable types: 42 continuous, 2100 integer (2100 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 18411 rows and 15 columns
Presolve time: 0.53s
Presolved: 65427 rows, 2127 columns, 198015 nonzeros
Variable types: 0 continuous, 2127 integer (2085 binary)
Root relaxation presolved: 2127 rows, 67554 columns, 200142 nonzeros


Root relaxation: objective 4.200000e+01, 25120 iterations, 3.75 seconds (3.30 work units)
Total elapsed time = 9.46s (DegenMoves)
Total elapsed time = 11.03s (DegenMoves)

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

     0     0   42.00000    0  405          -   42.00000      -     -   12s
H    0     0                       9.0000000   42.00000   367%     -   12s
H    0     0                      10.0000000   42.00000   320%     -   13s
H    0     0                      12.0000000   42.00000   250%     -   22s
     0     0   42.00000    0  740   12.00000   42.00000   250%     -   22s
     0     0   42.00000    0  665   12.00000   42.00000   250%     -   24s
H    0     0                      14.0000000   42.00000   200%     -   48s
     0     0   42.00000    0  449   14.00000   42.00000   200%     -   48s
     0     0          -    0        14.00000   42.00000   200%     -   50s

Cutting planes:
  Clique: 8
  MIR: 46
  Zero half: 6
  RLT: 34
  PSD: 1

Explored 1 nodes (65750 simplex iterations) in 50.10 seconds (48.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 12 10 9 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.200000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo7711.45.sol'

