Trace number 452890

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 0.230964 0.231763

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=9-P0=263-P1=269-B.opb
MD5SUMb613dc01eaf727bc9d40c6e07a29423b
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 benchmark0.012997
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 variables27
Total number of constraints3
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 constraints3
Minimum length of a constraint9
Maximum length of a constraint90
Number of terms in the objective function 9
Biggest coefficient in the objective function 256
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 511
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 131072
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 522844
Number of bits of the biggest sum of numbers19
Number of products (including duplicates)81
Sum of products size (including duplicates)162
Number of different products81
Sum of products size162

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/452890-1177991914/instance-452890-1177991914.opb
0.00/0.00	c File size is 1584 bytes.
0.00/0.00	c Highest Coefficient sum: 522844
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: 108 Constr: 166 81/0/85 Lit: 684 Watch. Lit: 425
0.00/0.00	c Obj. Vars: 9 (8.33333 % 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    108      166      684    4      589     908      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.19/0.21	c      101    108      267     7151   26      780     999    101   9181 0.01
0.19/0.21	c      251    108      417    17085   40     1072    1099    251  10040 0.03
0.19/0.21	c      476    108      642    33271   51     1532    1209    476   9520 0.05
0.19/0.21	c      815    108      981    59904   61     2155    1330    815   9367 0.09
0.19/0.21	c     1324    108     1490    98858   66     3205    1464   1324   8433 0.16
0.19/0.21	o 35	0.216
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     1686    108     1049    66459   63     2329     926    883   7805 0.22
0.19/0.22	o 9	0.223
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     1734     75     1098    68257   62     2443     920    932   7775 0.22
0.19/0.22	o 7	0.224
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     1739     75     1104    68471   62     2460     920    938   7763 0.22
0.19/0.22	o 3	0.226
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     1753     53     1119    68838   61     2490     916    953   7756 0.23
0.19/0.22	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
0.19/0.22	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.22	c    9     1754     25     2145     1120    68839    954   7761 0.23
0.19/0.22	c Objective: 3
0.19/0.22	s OPTIMUM FOUND
0.19/0.22	c Total time: 0.226 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/node14/watcher-452890-1177991914 -o ROOT/results/node14/solver-452890-1177991914 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452890-1177991914/instance-452890-1177991914.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: 0.81 0.95 0.98 3/77 13314
/proc/meminfo: memFree=1729792/2055920 swapFree=4148856/4192956
[pid=13314] ppid=13312 vsize=3924 CPUtime=0
/proc/13314/stat : 13314 (bsolo3.0.17) R 13312 13314 13249 0 -1 4194304 389 0 0 0 0 0 0 0 18 0 1 0 247109182 4018176 358 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134560672 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13314/statm: 981 360 300 324 0 51 0

[startup+0.024255 s]
/proc/loadavg: 0.81 0.95 0.98 3/77 13314
/proc/meminfo: memFree=1729792/2055920 swapFree=4148856/4192956
[pid=13314] ppid=13312 vsize=4184 CPUtime=0.02
/proc/13314/stat : 13314 (bsolo3.0.17) R 13312 13314 13249 0 -1 4194304 452 0 0 0 2 0 0 0 18 0 1 0 247109182 4284416 421 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 7362171 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13314/statm: 1046 421 309 324 0 116 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4184

[startup+0.102264 s]
/proc/loadavg: 0.81 0.95 0.98 3/77 13314
/proc/meminfo: memFree=1729792/2055920 swapFree=4148856/4192956
[pid=13314] ppid=13312 vsize=4960 CPUtime=0.09
/proc/13314/stat : 13314 (bsolo3.0.17) R 13312 13314 13249 0 -1 4194304 642 0 0 0 9 0 0 0 18 0 1 0 247109182 5079040 611 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 7362171 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13314/statm: 1240 611 309 324 0 310 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4960

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

[startup+0.202271 s]
/proc/loadavg: 0.81 0.95 0.98 3/77 13314
/proc/meminfo: memFree=1729792/2055920 swapFree=4148856/4192956
[pid=13314] ppid=13312 vsize=5604 CPUtime=0.19
/proc/13314/stat : 13314 (bsolo3.0.17) R 13312 13314 13249 0 -1 4194304 810 0 0 0 19 0 0 0 18 0 1 0 247109182 5738496 779 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134559338 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13314/statm: 1401 779 309 324 0 471 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 5604

Child status: 0
Real time (s): 0.231763
CPU time (s): 0.230964
CPU user time (s): 0.226965
CPU system time (s): 0.003999
CPU usage (%): 99.6552
Max. virtual memory (cumulated for all children) (KiB): 5604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.226965
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 815
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= 4

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Tue May  1 03:58:34 UTC 2007

IDJOB= 452890
IDBENCH= 47957
IDSOLVER= 199
FILE ID= node14/452890-1177991914

PBS_JOBID= 4728211

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=9-P0=263-P1=269-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452890-1177991914/instance-452890-1177991914.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-452890-1177991914 -o ROOT/results/node14/solver-452890-1177991914 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452890-1177991914/instance-452890-1177991914.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  b613dc01eaf727bc9d40c6e07a29423b

RANDOM SEED= 506550576

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.227
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		: 3000.227
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:       1730264 kB
Buffers:         41124 kB
Cached:         190308 kB
SwapCached:      11600 kB
Active:          87952 kB
Inactive:       166484 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1730264 kB
SwapTotal:     4192956 kB
SwapFree:      4148856 kB
Dirty:            6784 kB
Writeback:           0 kB
Mapped:          29980 kB
Slab:            56788 kB
Committed_AS:  7962128 kB
PageTables:       1784 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 node14 on Tue May  1 03:58:35 UTC 2007