--- Job misc06 Start 08/21/08 22:26:16 GAMS Rev 228 Copyright (C) 1987-2008 GAMS Development. All rights reserved Licensee: Stefan Vigerske G071106/0001CB-LNX Humboldt University Berlin, Numerical Mathematics DC5918 --- Starting compilation --- misc06.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/misc06.gdx --- misc06.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.012 --- misc06.gms(123) 4 Mb --- Generating MIP model m --- misc06.gms(124) 4 Mb --- 821 rows 1,809 columns 5,861 non-zeroes --- 112 discrete-columns --- misc06.gms(124) 4 Mb --- Executing COINCBC: elapsed 0:00:00.037 GAMS/CoinCbc 2.1 LP/MIP Solver written by J. Forrest Problem statistics: 1808 columns and 820 rows. 112 variables have integrality restrictions. Calling CBC main solution routine... Coin Cbc and Clp Solver version 2.10.00, build Jun 21 2008 command line - GAMS/CBC -solve -quit Continuous objective value is 12841.7 - 0.04 seconds processed model has 615 rows, 1463 columns (112 integer) and 3121 elements Pass 1: suminf. 0.00000 obj. 12911.8 iterations 97 Solution found of 12911.8 Before mini branch and bound, 97 integers at bound fixed and 1036 continuous Full problem 615 rows 1463 columns, reduced to 230 rows 268 columns Mini branch and bound improved solution from 12911.8 to 12909.6 (0.10 seconds) Freeing continuous variables gives a solution of 12892.4 Round again with cutoff of 12887.3 Reduced cost fixing fixed 1 variables on major pass 2 Pass 2: suminf. 0.00000 obj. 12887.3 iterations 138 Solution found of 12887.3 Before mini branch and bound, 97 integers at bound fixed and 1027 continuous Full problem 615 rows 1463 columns, reduced to 232 rows 281 columns Mini branch and bound improved solution from 12887.3 to 12882.8 (0.17 seconds) Freeing continuous variables gives a solution of 12879.9 After 0.18 seconds - Feasibility pump exiting with objective of 12879.9 - took 0.17 seconds Integer solution of 12870.3 found by feasibility pump after 0 iterations and 0 nodes (0.18 seconds) Full problem 615 rows 1463 columns, reduced to 311 rows 819 columns 16 added rows had average density of 119 At root node, 16 cuts changed objective from 12841.7 to 12848 in 5 passes Cut generator 0 (Probing) - 0 row cuts (0 active), 0 column cuts in 0.020 seconds - new frequency is 10 Cut generator 1 (Gomory) - 39 row cuts (6 active), 0 column cuts in 0.004 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 0 row cuts (0 active), 0 column cuts in 0.012 seconds - new frequency is -100 Cut generator 3 (Clique) - 0 row cuts (0 active), 0 column cuts in -0.000 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 0 row cuts (0 active), 0 column cuts in 0.004 seconds - new frequency is -100 Cut generator 5 (FlowCover) - 0 row cuts (0 active), 0 column cuts in 0.004 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 46 row cuts (10 active), 0 column cuts in 0.016 seconds - new frequency is -100 After 0 nodes, 1 on tree, 12870.3 best solution, best possible 12848 (0.34 seconds) Integer solution of 12870.1 found after 728 iterations and 55 nodes (1.43 seconds) Full problem 615 rows 1463 columns, reduced to 331 rows 869 columns Integer solution of 12850.9 found by combine solutions after 733 iterations and 56 nodes (1.80 seconds) Search completed - best objective 12850.86073738254, took 846 iterations and 68 nodes (1.88 seconds) Strong branching done 390 times (3225 iterations), fathomed 4 nodes and fixed 29 variables Maximum depth 10, 54 variables fixed on reduced cost Cuts at root node changed objective from 12841.7 to 12848 Probing was tried 9 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.020 seconds) Gomory was tried 52 times and created 67 cuts of which 32 were active after adding rounds of cuts (0.024 seconds) Knapsack was tried 5 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.012 seconds) Clique was tried 5 times and created 0 cuts of which 0 were active after adding rounds of cuts (-0.000 seconds) MixedIntegerRounding2 was tried 5 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.004 seconds) FlowCover was tried 5 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.004 seconds) TwoMirCuts was tried 5 times and created 46 cuts of which 10 were active after adding rounds of cuts (0.016 seconds) 79 bounds tightened after postprocessing Result - Finished objective 12850.86073738254 after 68 nodes and 846 iterations - took 1.90 seconds (total time 1.93) Total time 2.03 Solved to optimality. MIP solution: 12850.86074 (68 nodes, 2.03 seconds) Best possible: 12850.86074 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- misc06.gms(124) 0 Mb --- Reading solution for model m *** Status: Normal completion --- Job misc06.gms Stop 08/21/08 22:26:18 elapsed 0:00:02.110