
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:44:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5445.39.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/grafo5445.39.lp
Reading time = 0.13 seconds
: 62895 rows, 1984 columns, 190325 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 62895 rows, 1984 columns and 190325 nonzeros
Model fingerprint: 0x43a9ab78
Variable types: 45 continuous, 1939 integer (1939 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 9624 rows and 37 columns
Presolve time: 0.61s
Presolved: 53271 rows, 1947 columns, 161808 nonzeros
Variable types: 0 continuous, 1947 integer (1902 binary)
Root relaxation presolved: 1947 rows, 55218 columns, 163755 nonzeros


Root relaxation: objective 3.800000e+01, 1289 iterations, 0.97 seconds (0.21 work units)

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

     0     0   38.00000    0  324          -   38.00000      -     -    5s
H    0     0                       9.0000000   38.00000   322%     -    5s
H    0     0                      14.0000000   38.00000   171%     -    5s
     0     0   38.00000    0  834   14.00000   38.00000   171%     -   17s
H    0     0                      15.0000000   38.00000   153%     -   17s
     0     0   38.00000    0  813   15.00000   38.00000   153%     -   19s
     0     0  postponed    0        15.00000   38.00000   153%     -   50s

Cutting planes:
  Gomory: 6
  Cover: 6
  Clique: 4
  MIR: 76
  StrongCG: 3
  GUB cover: 1
  Zero half: 37
  RLT: 49
  BQP: 1

Explored 1 nodes (37082 simplex iterations) in 50.11 seconds (33.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 14 9 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.800000000000e+01, gap 153.3333%

Wrote result file './lp_solutions/grafo5445.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:22:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5445.39.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/grafo5445.39.lp
Reading time = 0.10 seconds
: 62895 rows, 1984 columns, 190325 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 62895 rows, 1984 columns and 190325 nonzeros
Model fingerprint: 0x43a9ab78
Variable types: 45 continuous, 1939 integer (1939 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 9624 rows and 37 columns
Presolve time: 0.42s
Presolved: 53271 rows, 1947 columns, 161808 nonzeros
Variable types: 0 continuous, 1947 integer (1902 binary)
Root relaxation presolved: 1947 rows, 55218 columns, 163755 nonzeros


Root relaxation: objective 3.800000e+01, 1289 iterations, 0.25 seconds (0.21 work units)

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

     0     0   38.00000    0  324          -   38.00000      -     -    3s
H    0     0                       9.0000000   38.00000   322%     -    3s
H    0     0                      14.0000000   38.00000   171%     -    3s
     0     0   38.00000    0  834   14.00000   38.00000   171%     -   11s
H    0     0                      15.0000000   38.00000   153%     -   11s
     0     0   38.00000    0  813   15.00000   38.00000   153%     -   12s
     0     0   38.00000    0  613   15.00000   38.00000   153%     -   39s
     0     0   38.00000    0  597   15.00000   38.00000   153%     -   40s
     0     0   38.00000    0  766   15.00000   38.00000   153%     -   50s

Cutting planes:
  Cover: 20
  Clique: 6
  MIR: 120
  GUB cover: 7
  Zero half: 22
  RLT: 55
  BQP: 1

Explored 1 nodes (49271 simplex iterations) in 50.07 seconds (46.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 14 9 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.800000000000e+01, gap 153.3333%

Wrote result file './lp_solutions/grafo5445.39.sol'

