Trace number 429806

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 3.0.16OPT3 0.159975 0.163174

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=41-P1=53-P2=59-B.opb
MD5SUM90616edfb9551f327ceab21eaa4edb03
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 benchmark0.026995
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 variables36
Total number of constraints5
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 constraints5
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)72
Sum of products size (including duplicates)144
Number of different products72
Sum of products size144

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 3.0.16 - 04/04/2007 : 1458 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 Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/429806-1177988824/instance-429806-1177988824.opb
0.00/0.00	c File size is 1538 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: 108 Constr: 151 72/0/79 Lit: 630 Watch. Lit: 398
0.00/0.00	c Obj. Vars: 6 (5.55556 % 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      151      630    4      540     851      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.00/0.02	c      102    108      253     4036   15      733     937    102  12750 0.01
0.00/0.02	c      253    108      404     9217   22     1034    1031    253  18071 0.01
0.00/0.02	o 23	0.024
0.09/0.12	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.12	c      417    108      569    14380   25     1371     863    418  17375 0.02
0.09/0.12	c      518    108      670    17796   26     1554     950    519  16709 0.03
0.09/0.12	c      769    108      921    25568   27     2059    1046    770  14240 0.05
0.09/0.12	c     1246    100      849    21810   25     1929    1151    698  11754 0.11
0.09/0.12	o 7	0.122
0.09/0.12	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.12	c     1507     99     1111    29516   26     2456     861    960  12352 0.12
0.09/0.12	o 3	0.124
0.09/0.16	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.16	c     1522     99      601    13644   22     1434     861    450  12274 0.12
0.09/0.16	c     1625     66      704    16002   22     1626     948    553  12500 0.13
0.09/0.16	c     1876     63      955    22003   23     2134    1043    804  12849 0.15
0.09/0.16	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 -x31
0.09/0.16	v -x32 -x33 -x34 -x35 -x36
0.09/0.16	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.16	c   10     2012     67     2387     1091    25042    940  12734 0.16
0.09/0.16	c Objective: 3
0.09/0.16	s OPTIMUM FOUND
0.09/0.16	c Total time: 0.158 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/node25/watcher-429806-1177988824 -o ROOT/results/node25/solver-429806-1177988824 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429806-1177988824/instance-429806-1177988824.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: 1.05 1.04 1.00 3/64 27677
/proc/meminfo: memFree=1882312/2055920 swapFree=4182940/4192956
[pid=27677] ppid=27675 vsize=19552 CPUtime=0
/proc/27677/stat : 27677 (bsolo3.0.16) R 27675 27677 25431 0 -1 4194304 375 0 0 0 0 0 0 0 18 0 1 0 246799489 20021248 344 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 10462843 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27677/statm: 4888 345 291 324 0 3956 0

[startup+0.070079 s]
/proc/loadavg: 1.05 1.04 1.00 3/64 27677
/proc/meminfo: memFree=1882312/2055920 swapFree=4182940/4192956
[pid=27677] ppid=27675 vsize=4444 CPUtime=0.06
/proc/27677/stat : 27677 (bsolo3.0.16) R 27675 27677 25431 0 -1 4194304 524 0 0 0 6 0 0 0 18 0 1 0 246799489 4550656 492 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27677/statm: 1111 492 313 324 0 180 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4444

[startup+0.101084 s]
/proc/loadavg: 1.05 1.04 1.00 3/64 27677
/proc/meminfo: memFree=1882312/2055920 swapFree=4182940/4192956
[pid=27677] ppid=27675 vsize=4572 CPUtime=0.09
/proc/27677/stat : 27677 (bsolo3.0.16) R 27675 27677 25431 0 -1 4194304 548 0 0 0 9 0 0 0 18 0 1 0 246799489 4681728 516 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27677/statm: 1143 516 313 324 0 212 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4572

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

Child status: 0
Real time (s): 0.163174
CPU time (s): 0.159975
CPU user time (s): 0.155976
CPU system time (s): 0.003999
CPU usage (%): 98.0396
Max. virtual memory (cumulated for all children) (KiB): 4572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.155976
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= 549
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= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Tue May  1 03:07:04 UTC 2007

IDJOB= 429806
IDBENCH= 47935
IDSOLVER= 163
FILE ID= node25/429806-1177988824

PBS_JOBID= 4728176

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=41-P1=53-P2=59-B.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429806-1177988824/instance-429806-1177988824.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-429806-1177988824 -o ROOT/results/node25/solver-429806-1177988824 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429806-1177988824/instance-429806-1177988824.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  90616edfb9551f327ceab21eaa4edb03

RANDOM SEED= 52851440

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.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		: 3000.261
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		: 3000.261
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:       1882720 kB
Buffers:          9124 kB
Cached:          91656 kB
SwapCached:       3804 kB
Active:          64588 kB
Inactive:        46772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1882720 kB
SwapTotal:     4192956 kB
SwapFree:      4182940 kB
Dirty:            6768 kB
Writeback:           0 kB
Mapped:          16508 kB
Slab:            47856 kB
Committed_AS:  4353496 kB
PageTables:       1476 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 node25 on Tue May  1 03:07:04 UTC 2007