--- Job ran10x10b Start 08/22/08 01:47:03 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 --- ran10x10b.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/ran10x10b.gdx --- ran10x10b.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.005 --- ran10x10b.gms(123) 4 Mb --- Generating MIP model m --- ran10x10b.gms(124) 4 Mb --- 121 rows 201 columns 601 non-zeroes --- 100 discrete-columns --- Executing COINCBC: elapsed 0:00:00.010 GAMS/CoinCbc 2.1 LP/MIP Solver written by J. Forrest Problem statistics: 200 columns and 120 rows. 100 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 2613.47 - 0.00 seconds processed model has 120 rows, 200 columns (100 integer) and 400 elements Pass 1: suminf. 1.06873 obj. 2766.1 iterations 27 Solution found of 3232 Before mini branch and bound, 95 integers at bound fixed and 95 continuous Full problem 120 rows 200 columns, reduced to 0 rows 0 columns Mini branch and bound did not improve solution (0.01 seconds) After 0.01 seconds - Feasibility pump exiting with objective of 3 - took 0.01 seconds Integer solution of 3232 found by feasibility pump after 0 iterations and 0 nodes (0.01 seconds) Full problem 120 rows 200 columns, reduced to 0 rows 0 columns 24 added rows had average density of 56.875 At root node, 24 cuts changed objective from 2613.47 to 2992.63 in 100 passes Cut generator 0 (Probing) - 0 row cuts (0 active), 0 column cuts in 1.268 seconds - new frequency is 10 Cut generator 1 (Gomory) - 299 row cuts (6 active), 0 column cuts in 0.128 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 225 row cuts (8 active), 0 column cuts in 0.092 seconds - new frequency is 1 Cut generator 3 (Clique) - 0 row cuts (0 active), 0 column cuts in 0.016 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 215 row cuts (7 active), 0 column cuts in 0.004 seconds - new frequency is 1 Cut generator 5 (FlowCover) - 144 row cuts (2 active), 0 column cuts in 0.100 seconds - new frequency is 1 Cut generator 6 (TwoMirCuts) - 212 row cuts (1 active), 0 column cuts in 0.032 seconds - new frequency is -100 After 0 nodes, 1 on tree, 3232 best solution, best possible 2992.63 (1.84 seconds) Search completed - best objective 3073, took 2296 iterations and 26 nodes (2.36 seconds) Strong branching done 810 times (9142 iterations), fathomed 8 nodes and fixed 28 variables Maximum depth 6, 384 variables fixed on reduced cost Cuts at root node changed objective from 2613.47 to 2992.63 Probing was tried 101 times and created 0 cuts of which 0 were active after adding rounds of cuts (1.268 seconds) Gomory was tried 122 times and created 325 cuts of which 16 were active after adding rounds of cuts (0.136 seconds) Knapsack was tried 123 times and created 248 cuts of which 10 were active after adding rounds of cuts (0.108 seconds) Clique was tried 100 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.016 seconds) MixedIntegerRounding2 was tried 123 times and created 279 cuts of which 45 were active after adding rounds of cuts (0.008 seconds) FlowCover was tried 123 times and created 217 cuts of which 33 were active after adding rounds of cuts (0.112 seconds) TwoMirCuts was tried 100 times and created 212 cuts of which 1 were active after adding rounds of cuts (0.032 seconds) Result - Finished objective 3073 after 26 nodes and 2296 iterations - took 2.37 seconds (total time 2.37) Total time 2.38 Solved to optimality. MIP solution: 3073 (26 nodes, 2.37 seconds) Best possible: 3073 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- ran10x10b.gms(124) 0 Mb --- Reading solution for model m *** Status: Normal completion --- Job ran10x10b.gms Stop 08/22/08 01:47:05 elapsed 0:00:02.412