Trace number 429190

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 0.117981 0.119434

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=19-P1=53-P2=37-B.opb
MD5SUMfe9afe61a3128dc2392b842924791b6c
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 benchmark0.024995
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/429190-1177981548/instance-429190-1177981548.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 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.
0.00/0.05	c      104    108      255     4099   16      738     937    104  14857 0.01
0.00/0.05	c      254    108      405     9178   22     1043    1031    254  18142 0.01
0.00/0.05	c      480    108      631    16324   25     1488    1135    480  17777 0.03
0.00/0.05	o 51	0.048
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c      777    108      929    26189   28     2094     863    778  16187 0.05
0.09/0.11	c      877    108      584    14882   25     1379     950    433  15120 0.06
0.09/0.11	c     1128    108      835    22510   26     1872    1046    684  15243 0.07
0.09/0.11	o 43	0.106
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c     1548    108      711    17417   24     1651     863    560  14603 0.11
0.09/0.11	o 3	0.109
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c     1598    107      762    19135   25     1764     863    611  14660 0.11
0.09/0.11	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
0.09/0.11	v x31 x32 x33 -x34 -x35 -x36
0.09/0.11	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.09/0.11	c    8     1671     41     2027      835    20342    684  14787 0.11
0.09/0.11	c Objective: 3
0.09/0.11	s OPTIMUM FOUND
0.09/0.11	c Total time: 0.113 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/node69/watcher-429190-1177981548 -o ROOT/results/node69/solver-429190-1177981548 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429190-1177981548/instance-429190-1177981548.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: 0.95 1.10 1.00 3/64 32720
/proc/meminfo: memFree=1910092/2055920 swapFree=4182928/4192956
[pid=32720] ppid=32718 vsize=19552 CPUtime=0
/proc/32720/stat : 32720 (bsolo3.0.16) R 32718 32720 27167 0 -1 4194304 377 0 0 0 0 0 0 0 18 0 1 0 274144294 20021248 346 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 12387963 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32720/statm: 2935 347 292 324 0 2003 0

[startup+0.0869371 s]
/proc/loadavg: 0.95 1.10 1.00 3/64 32720
/proc/meminfo: memFree=1910092/2055920 swapFree=4182928/4192956
[pid=32720] ppid=32718 vsize=4444 CPUtime=0.08
/proc/32720/stat : 32720 (bsolo3.0.16) R 32718 32720 27167 0 -1 4194304 526 0 0 0 8 0 0 0 18 0 1 0 274144294 4550656 494 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32720/statm: 1111 494 313 324 0 180 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4444

[startup+0.101939 s]
/proc/loadavg: 0.95 1.10 1.00 3/64 32720
/proc/meminfo: memFree=1910092/2055920 swapFree=4182928/4192956
[pid=32720] ppid=32718 vsize=4444 CPUtime=0.09
/proc/32720/stat : 32720 (bsolo3.0.16) R 32718 32720 27167 0 -1 4194304 537 0 0 0 9 0 0 0 18 0 1 0 274144294 4550656 505 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32720/statm: 1111 505 313 324 0 180 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4444

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

Child status: 0
Real time (s): 0.119434
CPU time (s): 0.117981
CPU user time (s): 0.113982
CPU system time (s): 0.003999
CPU usage (%): 98.7834
Max. virtual memory (cumulated for all children) (KiB): 4444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.113982
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= 547
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 0.004999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node69 on Tue May  1 01:05:49 UTC 2007

IDJOB= 429190
IDBENCH= 47891
IDSOLVER= 163
FILE ID= node69/429190-1177981548

PBS_JOBID= 4728186

Free space on /tmp= 66556 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=19-P1=53-P2=37-B.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429190-1177981548/instance-429190-1177981548.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node69/watcher-429190-1177981548 -o ROOT/results/node69/solver-429190-1177981548 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/429190-1177981548/instance-429190-1177981548.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  fe9afe61a3128dc2392b842924791b6c

RANDOM SEED= 680977944

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node69.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		: 3000.264
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	: 5931.00
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		: 3000.264
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:       1910692 kB
Buffers:         10160 kB
Cached:          64932 kB
SwapCached:       3788 kB
Active:          48240 kB
Inactive:        36368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1910692 kB
SwapTotal:     4192956 kB
SwapFree:      4182928 kB
Dirty:            6684 kB
Writeback:           0 kB
Mapped:          15448 kB
Slab:            46516 kB
Committed_AS:  3348160 kB
PageTables:       1472 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= 66556 MiB

End job on node69 on Tue May  1 01:05:49 UTC 2007