Trace number 1876511

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 NameAnswerobjCPU timeWall clock time
bsolo 3.1OPT3 0.225964 0.226431

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=53-P1=41-P2=53-B.opb
MD5SUM0b8464e4861bc607bcf2ce7d185603df
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 benchmark0.069988
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 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos 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 Learning Strategy: Cardinality Constraint Learning
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 HOME/instance-1876511-1245186762.opb
0.00/0.00	c File size is 5226 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: 0.001 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 lower bounding mode.
0.19/0.21	c      100    108      307     4815   15      927     937    156   8333 0.01
0.19/0.21	c      251    108      483    10449   21     1294    1031    332   9653 0.03
0.19/0.21	c      476    108      732    18345   25     1825    1135    581   9714 0.05
0.19/0.21	c      814    108     1146    30574   26     2759    1249    995   8847 0.09
0.19/0.21	c     1322    108     1152    30571   26     2621    1374   1001   7869 0.17
0.19/0.21	o 15
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     1618     98     1535    39076   25     3486     863   1384   7596 0.21
0.19/0.22	o 3
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     1673     82      659    13488   20     1560     859    508   7536 0.22
0.19/0.22	v x1 x2 -x3 -x4 -x5 -x6 x7 x8 -x9 -x10 -x11 -x12 x13 -x14 -x15 x16 x17 -x18 x37 x38 -x39 -x40 -x41 -x42 x43 x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 x19 -x20 -x21 x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 -x30 x73 -x74 -x75 x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 x91 -x92 -x93 x94 -x95 -x96 x97 -x98 -x99 x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 x31 x32 -x33 -x34 -x35 -x36 
0.19/0.22	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.22	c    7     1688     28     1970      674    13538    523   7535 0.22
0.19/0.22	c Objective: 3
0.19/0.22	s OPTIMUM FOUND
0.19/0.22	c Total time: 0.224 s

Verifier Data 

OK	3

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1876511-1245186762/watcher-1876511-1245186762 -o /tmp/evaluation-result-1876511-1245186762/solver-1876511-1245186762 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1876511-1245186762.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.90 0.97 0.99 3/64 31344
/proc/meminfo: memFree=1843824/2055920 swapFree=4191900/4192956
[pid=31344] ppid=31342 vsize=10708 CPUtime=0
/proc/31344/stat : 31344 (bsolo) R 31342 31344 31261 0 -1 4194304 264 0 0 0 0 0 0 0 18 0 1 0 186276655 10964992 246 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31344/statm: 2677 246 197 640 0 2033 0

[startup+0.0898531 s]
/proc/loadavg: 0.90 0.97 0.99 3/64 31344
/proc/meminfo: memFree=1843824/2055920 swapFree=4191900/4192956
[pid=31344] ppid=31342 vsize=11096 CPUtime=0.08
/proc/31344/stat : 31344 (bsolo) R 31342 31344 31261 0 -1 4194304 381 0 0 0 8 0 0 0 18 0 1 0 186276655 11362304 363 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31344/statm: 2774 363 198 640 0 2130 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 11096

[startup+0.10185 s]
/proc/loadavg: 0.90 0.97 0.99 3/64 31344
/proc/meminfo: memFree=1843824/2055920 swapFree=4191900/4192956
[pid=31344] ppid=31342 vsize=11224 CPUtime=0.09
/proc/31344/stat : 31344 (bsolo) R 31342 31344 31261 0 -1 4194304 395 0 0 0 9 0 0 0 18 0 1 0 186276655 11493376 377 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31344/statm: 2806 377 198 640 0 2162 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11224

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

[startup+0.201821 s]
/proc/loadavg: 0.90 0.97 0.99 3/64 31344
/proc/meminfo: memFree=1843824/2055920 swapFree=4191900/4192956
[pid=31344] ppid=31342 vsize=11224 CPUtime=0.19
/proc/31344/stat : 31344 (bsolo) R 31342 31344 31261 0 -1 4194304 424 0 0 0 19 0 0 0 18 0 1 0 186276655 11493376 406 1992294400 134512640 137136520 4294956256 18446744073709551615 136295557 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31344/statm: 2806 406 198 640 0 2162 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11224

Child status: 0
Real time (s): 0.226431
CPU time (s): 0.225964
CPU user time (s): 0.223965
CPU system time (s): 0.001999
CPU usage (%): 99.7938
Max. virtual memory (cumulated for all children) (KiB): 11224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.223965
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 430
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= 2
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node16 at 2009-06-16 23:12:42
IDJOB=1876511
IDBENCH=47921
IDSOLVER=699
FILE ID=node16/1876511-1245186762
PBS_JOBID= 9368289
Free space on /tmp= 66280 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=53-P1=41-P2=53-B.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1876511-1245186762/watcher-1876511-1245186762 -o /tmp/evaluation-result-1876511-1245186762/solver-1876511-1245186762 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1876511-1245186762.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0b8464e4861bc607bcf2ce7d185603df
RANDOM SEED=1500126149

node16.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.214
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		: 3000.214
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:       1844304 kB
Buffers:         38780 kB
Cached:          96688 kB
SwapCached:        260 kB
Active:          45156 kB
Inactive:       103008 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1844304 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4284 kB
Writeback:           0 kB
Mapped:          21188 kB
Slab:            49440 kB
Committed_AS:   159892 kB
PageTables:       1440 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1876511-1245186762.opb

Free space on /tmp at the end= 66276 MiB
End job on node16 at 2009-06-16 23:12:42