
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:48:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4107.37.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/grafo4107.37.lp
Reading time = 0.23 seconds
: 140760 rows, 1990 columns, 423955 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 140760 rows, 1990 columns and 423955 nonzeros
Model fingerprint: 0xf705288d
Variable types: 43 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 55090 rows and 12 columns
Presolve time: 1.01s
Presolved: 85670 rows, 1978 columns, 259012 nonzeros
Variable types: 0 continuous, 1978 integer (1935 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1975 rows, 87645 columns, 260990 nonzeros


Root relaxation: objective 4.900000e+01, 2635 iterations, 0.92 seconds (1.13 work units)
Total elapsed time = 9.43s (DegenMoves)
Total elapsed time = 10.48s (DegenMoves)

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

     0     0   49.00000    0  368    5.00000   49.00000   880%     -   11s
H    0     0                      11.0000000   49.00000   345%     -   11s
H    0     0                      12.0000000   49.00000   308%     -   11s
     0     0   49.00000    0  671   12.00000   49.00000   308%     -   20s
     0     0   49.00000    0  630   12.00000   49.00000   308%     -   21s
     0     0   49.00000    0  640   12.00000   49.00000   308%     -   50s

Cutting planes:
  Gomory: 7
  Lift-and-project: 51
  Cover: 17
  Clique: 18
  MIR: 145
  StrongCG: 2
  Zero half: 60
  RLT: 55
  BQP: 2

Explored 1 nodes (35792 simplex iterations) in 50.03 seconds (58.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 5 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.900000000000e+01, gap 308.3333%

Wrote result file './lp_solutions/grafo4107.37.sol'

