
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:16:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10029.40.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/grafo10029.40.lp
Reading time = 0.27 seconds
: 79064 rows, 2545 columns, 239670 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 79064 rows, 2545 columns and 239670 nonzeros
Model fingerprint: 0x0d8c890f
Variable types: 53 continuous, 2492 integer (2492 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 8117 rows and 81 columns
Presolve time: 1.04s
Presolved: 70947 rows, 2464 columns, 215813 nonzeros
Variable types: 0 continuous, 2464 integer (2411 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2458 rows, 73405 columns, 218277 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11411    4.3895171e+01   0.000000e+00   3.540003e+04      5s
   23651    4.3877725e+01   0.000000e+00   4.212418e+03     10s
   34871    4.3874242e+01   0.000000e+00   7.121842e+02     15s
   40554    4.4000000e+01   0.000000e+00   0.000000e+00     18s
   40554    4.4000000e+01   0.000000e+00   0.000000e+00     18s
   40554    4.4000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 4.400000e+01, 40554 iterations, 16.28 seconds (7.35 work units)
Total elapsed time = 33.86s (DegenMoves)

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

     0     0   44.00000    0  509    9.00000   44.00000   389%     -   35s
H    0     0                      11.0000000   44.00000   300%     -   35s
     0     0          -    0        11.00000   44.00000   300%     -   50s

Cutting planes:
  Gomory: 42
  Cover: 41
  Clique: 3
  MIR: 136
  GUB cover: 10
  Zero half: 80
  RLT: 28

Explored 1 nodes (57363 simplex iterations) in 50.11 seconds (24.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.400000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo10029.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:47:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10029.40.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/grafo10029.40.lp
Reading time = 0.12 seconds
: 79064 rows, 2545 columns, 239670 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 79064 rows, 2545 columns and 239670 nonzeros
Model fingerprint: 0x0d8c890f
Variable types: 53 continuous, 2492 integer (2492 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 8117 rows and 81 columns
Presolve time: 0.56s
Presolved: 70947 rows, 2464 columns, 215813 nonzeros
Variable types: 0 continuous, 2464 integer (2411 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2458 rows, 73405 columns, 218277 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21951    4.3878800e+01   0.000000e+00   8.119350e+03      5s
   40554    4.4000000e+01   0.000000e+00   0.000000e+00     10s
   40554    4.4000000e+01   0.000000e+00   0.000000e+00     10s
   40554    4.4000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.400000e+01, 40554 iterations, 8.91 seconds (7.35 work units)
Total elapsed time = 19.58s (DegenMoves)
Total elapsed time = 20.22s (DegenMoves)

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

     0     0   44.00000    0  509    9.00000   44.00000   389%     -   20s
H    0     0                      11.0000000   44.00000   300%     -   20s
     0     0   44.00000    0  916   11.00000   44.00000   300%     -   35s
H    0     0                      12.0000000   44.00000   267%     -   36s
     0     0   44.00000    0  825   12.00000   44.00000   267%     -   36s
     0     0   44.00000    0  849   12.00000   44.00000   267%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 30
  Cover: 5
  Clique: 2
  MIR: 114
  GUB cover: 1
  Zero half: 12
  RLT: 37
  BQP: 2
  PSD: 2

Explored 1 nodes (68479 simplex iterations) in 50.09 seconds (41.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 9 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.400000000000e+01, gap 266.6667%

Wrote result file './lp_solutions/grafo10029.40.sol'

