
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:13:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3552.44.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/grafo3552.44.lp
Reading time = 0.14 seconds
: 81405 rows, 2138 columns, 245767 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 81405 rows, 2138 columns and 245767 nonzeros
Model fingerprint: 0x30f2f17e
Variable types: 43 continuous, 2095 integer (2095 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 17368 rows and 26 columns
Presolve time: 0.81s
Presolved: 64037 rows, 2112 columns, 193987 nonzeros
Variable types: 0 continuous, 2112 integer (2069 binary)
Root relaxation presolved: 2112 rows, 66149 columns, 196099 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19997    3.9838315e+01   0.000000e+00   1.140443e+04      5s
   24640    4.0000000e+01   0.000000e+00   0.000000e+00      6s
   24640    4.0000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.000000e+01, 24640 iterations, 5.29 seconds (3.14 work units)
Total elapsed time = 15.95s (DegenMoves)

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

     0     0   40.00000    0  604          -   40.00000      -     -   19s
H    0     0                       5.0000000   40.00000   700%     -   19s
H    0     0                       9.0000000   40.00000   344%     -   19s
     0     0   40.00000    0  691    9.00000   40.00000   344%     -   35s
     0     0   40.00000    0  637    9.00000   40.00000   344%     -   37s
     0     0          -    0         9.00000   40.00000   344%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 30
  Cover: 8
  Clique: 16
  MIR: 87
  Zero half: 90
  RLT: 54
  BQP: 1

Explored 1 nodes (46955 simplex iterations) in 50.11 seconds (30.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.000000000000e+01, gap 344.4444%

Wrote result file './lp_solutions/grafo3552.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:11:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3552.44.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/grafo3552.44.lp
Reading time = 0.13 seconds
: 81405 rows, 2138 columns, 245767 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 81405 rows, 2138 columns and 245767 nonzeros
Model fingerprint: 0x30f2f17e
Variable types: 43 continuous, 2095 integer (2095 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 17368 rows and 26 columns
Presolve time: 0.56s
Presolved: 64037 rows, 2112 columns, 193987 nonzeros
Variable types: 0 continuous, 2112 integer (2069 binary)
Root relaxation presolved: 2112 rows, 66149 columns, 196099 nonzeros


Root relaxation: objective 4.000000e+01, 24640 iterations, 3.66 seconds (3.14 work units)
Total elapsed time = 11.90s (DegenMoves)

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

     0     0   40.00000    0  604          -   40.00000      -     -   14s
H    0     0                       5.0000000   40.00000   700%     -   14s
H    0     0                       9.0000000   40.00000   344%     -   14s
     0     0   40.00000    0  691    9.00000   40.00000   344%     -   25s
     0     0   40.00000    0  637    9.00000   40.00000   344%     -   27s
H    0     0                      10.0000000   40.00000   300%     -   44s
H    0     0                      11.0000000   40.00000   264%     -   44s
     0     0   40.00000    0  407   11.00000   40.00000   264%     -   44s
     0     0   40.00000    0  394   11.00000   40.00000   264%     -   44s
     0     0   40.00000    0  576   11.00000   40.00000   264%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 41
  Clique: 9
  MIR: 113
  GUB cover: 8
  Zero half: 79
  RLT: 58
  BQP: 2

Explored 1 nodes (61568 simplex iterations) in 50.08 seconds (44.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 5 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.000000000000e+01, gap 263.6364%

Wrote result file './lp_solutions/grafo3552.44.sol'

