Trace number 452886

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
bsolo 3.0.17OPT3 0.766882 0.770572

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=31-P1=31-P2=37-P3=37-B.opb
MD5SUM1faefeca557086bb8f2ad91e3f4c80d3
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.036993
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables54
Total number of constraints7
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints7
Minimum length of a constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)108
Sum of products size (including duplicates)216
Number of different products108
Sum of products size216

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00/0.00	c bsolo beta version 3.0.17 - 27/04/2007 : 1600 GMT
0.00/0.00	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/452886-1177991252/instance-452886-1177991252.opb
0.00/0.00	c File size is 2196 bytes.
0.00/0.00	c Highest Coefficient sum: 8064
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 162 Constr: 226 108/0/118 Lit: 948 Watch. Lit: 596
0.00/0.00	c Obj. Vars: 6 (3.7037 % of total variables)
0.00/0.00	c Pre-processing Time: 0.002 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    162      226      948    4      812    1283      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.04/0.08	c      104    162      330     4255   12     1004    1412    104  13000 0.01
0.04/0.08	c      255    162      481    10266   21     1315    1554    255  15937 0.02
0.04/0.08	c      481    162      707    18553   26     1750    1710    481  17178 0.03
0.04/0.08	c      820    162     1046    31262   29     2425    1882    820  14385 0.06
0.04/0.08	o 29	0.076
0.09/0.18	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.18	c     1022    162     1249    37814   30     2840    1295   1023  13272 0.08
0.09/0.18	c     1122    162     1349    41762   30     3027    1425   1123  13200 0.09
0.09/0.18	c     1373    154     1600    49761   31     3538    1568   1374  12481 0.11
0.09/0.18	c     1849    154     1257    33577   26     2851    1725   1031  11556 0.16
0.09/0.18	o 27	0.182
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     2211    154     1620    44882   27     3589    1293   1394  12148 0.18
0.19/0.22	c     2311    154      975    24105   24     2311    1423    749  12099 0.19
0.19/0.22	c     2562    153     1226    32438   26     2789    1566   1000  12376 0.21
0.19/0.22	o 19	0.224
0.19/0.24	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.24	c     2800    153     1465    41403   28     3274    1293   1239  12500 0.22
0.19/0.24	c     2901    153      876    23251   26     2109    1423    650  12344 0.23
0.19/0.24	o 13	0.237
0.19/0.24	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.24	c     2924    153      900    24084   26     2126    1293    674  12337 0.24
0.19/0.24	o 5	0.241
0.19/0.25	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.25	c     2977    145      954    25887   27     2273    1291    728  12352 0.24
0.19/0.25	c     3077    137     1054    30734   29     2458    1421    828  12308 0.25
0.19/0.25	o 3	0.253
0.69/0.76	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.69/0.76	c     3107    137     1085    31626   29     2530    1289    859  12280 0.25
0.69/0.76	c     3207    130     1185    35315   29     2723    1418    959  12101 0.27
0.69/0.76	c     3457    120     1435    43845   30     3204    1560   1209  11879 0.29
0.69/0.76	c     3932    120     1036    29665   28     2393    1717    810  11598 0.34
0.69/0.76	c     4745    120     1849    57177   30     4044    1889   1623  10908 0.43
0.69/0.76	c     6065    120     2133    65457   30     4608    2078   1907   9566 0.63
0.69/0.76	v x1 x2 -x3 -x4 -x5 -x6 x7 x8 -x9 x10 -x11 x12 x13 x14 -x15 -x16 -x17 -x18 x19 x20 -x21 -x22 x23 x24 x25 -x26 -x27 -x28 -x29 -x30 -x37
0.69/0.76	v x38 -x39 -x40 -x41 -x42 x31 x32 -x33 -x34 -x35 -x36 -x43 -x44 -x45 -x46 -x47 -x48 -x49 x50 -x51 -x52 -x53 -x54
0.69/0.76	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.69/0.76	c   22     6755    275     8346     1707    51864   1481   8841 0.76
0.69/0.76	c Objective: 3
0.69/0.76	s OPTIMUM FOUND
0.69/0.76	c Total time: 0.764 s

Verifier Data (download as text)

OK	3

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-452886-1177991252 -o ROOT/results/node24/solver-452886-1177991252 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452886-1177991252/instance-452886-1177991252.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.10 1.16 1.06 3/77 26072
/proc/meminfo: memFree=1816888/2055920 swapFree=4143580/4192956
[pid=26072] ppid=26070 vsize=3928 CPUtime=0
/proc/26072/stat : 26072 (bsolo3.0.17) R 26070 26072 26007 0 -1 4194304 376 0 0 0 0 0 0 0 18 0 1 0 247043235 4022272 346 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26072/statm: 982 347 290 324 0 51 0

[startup+0.050905 s]
/proc/loadavg: 1.10 1.16 1.06 3/77 26072
/proc/meminfo: memFree=1816888/2055920 swapFree=4143580/4192956
[pid=26072] ppid=26070 vsize=4444 CPUtime=0.04
/proc/26072/stat : 26072 (bsolo3.0.17) R 26070 26072 26007 0 -1 4194304 512 0 0 0 4 0 0 0 18 0 1 0 247043235 4550656 481 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 3040891 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26072/statm: 1111 481 310 324 0 181 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4444

[startup+0.10191 s]
/proc/loadavg: 1.10 1.16 1.06 3/77 26072
/proc/meminfo: memFree=1816888/2055920 swapFree=4143580/4192956
[pid=26072] ppid=26070 vsize=4704 CPUtime=0.09
/proc/26072/stat : 26072 (bsolo3.0.17) R 26070 26072 26007 0 -1 4194304 587 0 0 0 9 0 0 0 18 0 1 0 247043235 4816896 556 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 3040891 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26072/statm: 1176 556 311 324 0 246 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4704

[startup+0.301933 s]
/proc/loadavg: 1.10 1.16 1.06 3/77 26072
/proc/meminfo: memFree=1816888/2055920 swapFree=4143580/4192956
[pid=26072] ppid=26070 vsize=4964 CPUtime=0.29
/proc/26072/stat : 26072 (bsolo3.0.17) R 26070 26072 26007 0 -1 4194304 635 0 0 0 29 0 0 0 19 0 1 0 247043235 5083136 604 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 3037057 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26072/statm: 1241 604 311 324 0 311 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4964

[startup+0.701975 s]
/proc/loadavg: 1.10 1.16 1.06 3/77 26072
/proc/meminfo: memFree=1816888/2055920 swapFree=4143580/4192956
[pid=26072] ppid=26070 vsize=5224 CPUtime=0.69
/proc/26072/stat : 26072 (bsolo3.0.17) R 26070 26072 26007 0 -1 4194304 710 0 0 0 69 0 0 0 23 0 1 0 247043235 5349376 679 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551093 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26072/statm: 1306 679 311 324 0 376 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5224

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.770572
CPU time (s): 0.766882
CPU user time (s): 0.763883
CPU system time (s): 0.002999
CPU usage (%): 99.5211
Max. virtual memory (cumulated for all children) (KiB): 5224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.763883
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 714
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 12
involuntary context switches= 16

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Tue May  1 03:47:32 UTC 2007

IDJOB= 452886
IDBENCH= 47953
IDSOLVER= 199
FILE ID= node24/452886-1177991252

PBS_JOBID= 4728197

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=31-P1=31-P2=37-P3=37-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452886-1177991252/instance-452886-1177991252.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-452886-1177991252 -o ROOT/results/node24/solver-452886-1177991252 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452886-1177991252/instance-452886-1177991252.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  1faefeca557086bb8f2ad91e3f4c80d3

RANDOM SEED= 368557065

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.238
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.238
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1817296 kB
Buffers:         35764 kB
Cached:         118380 kB
SwapCached:      17148 kB
Active:         100916 kB
Inactive:        76136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1817296 kB
SwapTotal:     4192956 kB
SwapFree:      4143580 kB
Dirty:            6788 kB
Writeback:           0 kB
Mapped:          29848 kB
Slab:            47048 kB
Committed_AS:  3897824 kB
PageTables:       1808 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66558 MiB

End job on node24 on Tue May  1 03:47:33 UTC 2007