Trace number 1876547

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 0.300953 0.301118

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 benchmark0.003998
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 

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-1876547-1245187200.opb
0.00/0.00	c File size is 5806 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 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: 0.001 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      166      684    4      589     908      0      0 0.00
0.00/0.00	c Switching off lower bounding mode.
0.19/0.29	c      104    108      332     8897   26     1020     999    166   5200 0.02
0.19/0.29	c      255    108      591    20857   35     1736    1099    425   5425 0.05
0.19/0.29	c      480    108      950    38773   40     2663    1209    784   4800 0.10
0.19/0.29	c      819    108      775    42701   55     1801    1330    609   4500 0.18
0.19/0.29	c     1327    108     1401    84002   59     3216    1464   1235   4575 0.29
0.19/0.29	o 7
0.19/0.30	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.30	c     1330    108     1407    84276   59     3247     926   1241   4554 0.29
0.19/0.30	o 3
0.19/0.30	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.30	c     1352     68      663    36889   55     1567     918    497   4536 0.30
0.19/0.30	v x1 x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 x10 -x11 -x12 x13 -x14 -x15 x16 x17 -x18 x28 x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -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 -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 x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 
0.19/0.30	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.30	c    7     1355     30     1701      666    36893    500   4531 0.30
0.19/0.30	c Objective: 3
0.19/0.30	s OPTIMUM FOUND
0.19/0.30	c Total time: 0.299 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-1876547-1245187200/watcher-1876547-1245187200 -o /tmp/evaluation-result-1876547-1245187200/solver-1876547-1245187200 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1876547-1245187200.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: 0.99 0.97 0.98 3/64 12646
/proc/meminfo: memFree=1850920/2055920 swapFree=4192952/4192956
[pid=12646] ppid=12644 vsize=10704 CPUtime=0
/proc/12646/stat : 12646 (bsolo) R 12644 12646 12171 0 -1 4194304 267 0 0 0 0 0 0 0 18 0 1 0 71422811 10960896 249 1992294400 134512640 137136520 4294956256 18446744073709551615 134544116 0 0 4096 16384 0 0 0 17 0 0 0
/proc/12646/statm: 2676 249 197 640 0 2032 0

[startup+0.10269 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 12646
/proc/meminfo: memFree=1850920/2055920 swapFree=4192952/4192956
[pid=12646] ppid=12644 vsize=11216 CPUtime=0.1
/proc/12646/stat : 12646 (bsolo) R 12644 12646 12171 0 -1 4194304 412 0 0 0 10 0 0 0 18 0 1 0 71422811 11485184 394 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/12646/statm: 2804 395 198 640 0 2160 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11216

[startup+0.201703 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 12646
/proc/meminfo: memFree=1850920/2055920 swapFree=4192952/4192956
[pid=12646] ppid=12644 vsize=11604 CPUtime=0.19
/proc/12646/stat : 12646 (bsolo) R 12644 12646 12171 0 -1 4194304 515 0 0 0 19 0 0 0 18 0 1 0 71422811 11882496 497 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/12646/statm: 2901 497 198 640 0 2257 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11604

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

Child status: 0
Real time (s): 0.301118
CPU time (s): 0.300953
CPU user time (s): 0.297954
CPU system time (s): 0.002999
CPU usage (%): 99.9452
Max. virtual memory (cumulated for all children) (KiB): 11604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.297954
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= 575
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= 1

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-06-16 23:20:00
IDJOB=1876547
IDBENCH=47957
IDSOLVER=699
FILE ID=node20/1876547-1245187200
PBS_JOBID= 9368283
Free space on /tmp= 66324 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=9-P0=263-P1=269-B.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1876547-1245187200/watcher-1876547-1245187200 -o /tmp/evaluation-result-1876547-1245187200/solver-1876547-1245187200 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1876547-1245187200.opb

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

MD5SUM BENCH= b613dc01eaf727bc9d40c6e07a29423b
RANDOM SEED=762881042

node20.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		: 3000.234
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		: 3000.234
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:       1851400 kB
Buffers:         41484 kB
Cached:          78260 kB
SwapCached:          4 kB
Active:          31304 kB
Inactive:       101820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1851400 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            4308 kB
Writeback:           0 kB
Mapped:          23232 kB
Slab:            57392 kB
Committed_AS:   140668 kB
PageTables:       1400 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-1876547-1245187200.opb

Free space on /tmp at the end= 66320 MiB
End job on node20 at 2009-06-16 23:20:00