
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 13:55:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1980.28.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/grafo1980.28.lp
Reading time = 0.19 seconds
: 60225 rows, 1173 columns, 181566 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 60225 rows, 1173 columns and 181566 nonzeros
Model fingerprint: 0xd20fe1d3
Variable types: 33 continuous, 1140 integer (1140 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 24533 rows and 7 columns
Presolve time: 0.67s
Presolved: 35692 rows, 1166 columns, 108125 nonzeros
Variable types: 0 continuous, 1166 integer (1133 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1161 rows, 36853 columns, 109291 nonzeros


Root relaxation: objective 3.900000e+01, 2051 iterations, 0.99 seconds (0.67 work units)
Total elapsed time = 9.31s (DegenMoves)
Total elapsed time = 10.02s (DegenMoves)

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

     0     0   39.00000    0  449    5.00000   39.00000   680%     -   10s
H    0     0                       8.0000000   39.00000   387%     -   10s
     0     0   39.00000    0  621    8.00000   39.00000   387%     -   22s
H    0     0                       9.0000000   39.00000   333%     -   22s
     0     0   39.00000    0  577    9.00000   39.00000   333%     -   23s
     0     0   39.00000    0  345    9.00000   39.00000   333%     -   39s
     0     0   39.00000    0  305    9.00000   39.00000   333%     -   39s
     0     0   39.00000    0  491    9.00000   39.00000   333%     -   50s

Cutting planes:
  Cover: 44
  Clique: 21
  MIR: 120
  StrongCG: 4
  Zero half: 69
  RLT: 67
  BQP: 1

Explored 1 nodes (27088 simplex iterations) in 50.05 seconds (20.26 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo1980.28.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 10:08:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1980.28.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/grafo1980.28.lp
Reading time = 0.14 seconds
: 60225 rows, 1173 columns, 181566 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 60225 rows, 1173 columns and 181566 nonzeros
Model fingerprint: 0xd20fe1d3
Variable types: 33 continuous, 1140 integer (1140 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 24533 rows and 7 columns
Presolve time: 0.35s
Presolved: 35692 rows, 1166 columns, 108125 nonzeros
Variable types: 0 continuous, 1166 integer (1133 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1161 rows, 36853 columns, 109291 nonzeros


Root relaxation: objective 3.900000e+01, 2051 iterations, 0.53 seconds (0.67 work units)
Total elapsed time = 5.26s (DegenMoves)

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

     0     0   39.00000    0  449    5.00000   39.00000   680%     -    5s
H    0     0                       8.0000000   39.00000   387%     -    5s
     0     0   39.00000    0  621    8.00000   39.00000   387%     -   10s
H    0     0                       9.0000000   39.00000   333%     -   11s
     0     0   39.00000    0  577    9.00000   39.00000   333%     -   11s
     0     0   39.00000    0  345    9.00000   39.00000   333%     -   18s
     0     0   39.00000    0  305    9.00000   39.00000   333%     -   18s
     0     0   39.00000    0  357    9.00000   39.00000   333%     -   26s
     0     0   39.00000    0  327    9.00000   39.00000   333%     -   26s
     0     0   39.00000    0  366    9.00000   39.00000   333%     -   36s
     0     0   39.00000    0  338    9.00000   39.00000   333%     -   36s
     0     0   39.00000    0  328    9.00000   39.00000   333%     -   42s
     0     0   39.00000    0  306    9.00000   39.00000   333%     -   42s
     0     0   39.00000    0  423    9.00000   39.00000   333%     -   47s
     0     0   39.00000    0  421    9.00000   39.00000   333%     -   47s
     0     0   39.00000    0  474    9.00000   39.00000   333%     -   50s

Cutting planes:
  Cover: 22
  Clique: 22
  MIR: 120
  StrongCG: 1
  Zero half: 24
  RLT: 64
  BQP: 1

Explored 1 nodes (61921 simplex iterations) in 50.05 seconds (47.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo1980.28.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 03:12:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1980.28.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/grafo1980.28.lp
Reading time = 0.10 seconds
: 60225 rows, 1173 columns, 181566 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 60225 rows, 1173 columns and 181566 nonzeros
Model fingerprint: 0xd20fe1d3
Variable types: 33 continuous, 1140 integer (1140 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 24533 rows and 7 columns
Presolve time: 0.34s
Presolved: 35692 rows, 1166 columns, 108125 nonzeros
Variable types: 0 continuous, 1166 integer (1133 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1161 rows, 36853 columns, 109291 nonzeros


Root relaxation: objective 3.900000e+01, 2051 iterations, 0.52 seconds (0.67 work units)
Total elapsed time = 5.16s (DegenMoves)

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

     0     0   39.00000    0  449    5.00000   39.00000   680%     -    5s
H    0     0                       8.0000000   39.00000   387%     -    5s
     0     0   39.00000    0  621    8.00000   39.00000   387%     -   10s
H    0     0                       9.0000000   39.00000   333%     -   10s
     0     0   39.00000    0  577    9.00000   39.00000   333%     -   10s
     0     0   39.00000    0  345    9.00000   39.00000   333%     -   17s
     0     0   39.00000    0  305    9.00000   39.00000   333%     -   17s
     0     0   39.00000    0  357    9.00000   39.00000   333%     -   24s
     0     0   39.00000    0  327    9.00000   39.00000   333%     -   24s
     0     0   39.00000    0  366    9.00000   39.00000   333%     -   33s
     0     0   39.00000    0  338    9.00000   39.00000   333%     -   33s
     0     0   39.00000    0  328    9.00000   39.00000   333%     -   38s
     0     0   39.00000    0  306    9.00000   39.00000   333%     -   39s
     0     0   39.00000    0  423    9.00000   39.00000   333%     -   43s
     0     0   39.00000    0  421    9.00000   39.00000   333%     -   44s
     0     0   39.00000    0  345    9.00000   39.00000   333%     -   49s
     0     0   39.00000    0  345    9.00000   39.00000   333%     -   50s

Cutting planes:
  Cover: 2
  Clique: 11
  MIR: 23
  RLT: 13
  BQP: 1

Explored 1 nodes (68121 simplex iterations) in 50.02 seconds (51.29 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo1980.28.sol'

