Trace number 429950

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
PB-clasp 2007-04-10OPT2 0.659899 0.674619

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=23-P1=29-P2=23-P3=19-P4=2-P5=23-B.opb
MD5SUMaf6a557bae55dcfbf0cc06cf0559c9b3
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.041992
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables75
Total number of constraints11
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 constraints11
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)125
Sum of products size (including duplicates)250
Number of different products125
Sum of products size250

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)

0.02/0.18	o 17
0.17/0.22	o 10
0.21/0.31	o 9
0.29/0.40	o 7
0.29/0.48	o 3
0.46/0.64	o 2
0.46/0.67	s OPTIMUM FOUND
0.46/0.67	v x2 x6 x7 x11 x12 x16 x19 x21 x24 x26 x29 x32 x33 x37 x40 x42 x47 x50 x61 x63 x71 x73 x77 x82 x102 x103 x107 x108 x127 x130 x142 x145
0.46/0.67	v x152 x167 x177 x180 x192 x195

Verifier Data (download as text)

OK	2

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/429950-1177989982/instance-429950-1177989982.opb

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node68/watcher-429950-1177989982 -o ROOT/results/node68/solver-429950-1177989982 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-429950-1177989982.opb /tmp/evaluation/429950-1177989982/temp 

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: 0.91 1.02 0.99 3/64 930
/proc/meminfo: memFree=1791616/2055920 swapFree=4183864/4192956
[pid=930] ppid=928 vsize=12268 CPUtime=0
/proc/930/stat : 930 (pbclasp) D 928 930 30972 0 -1 4194304 350 0 0 0 0 0 0 0 18 0 1 0 274987779 12562432 317 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 257414625893 0 2147483391 4224 0 18446744072099781622 0 0 17 0 0 0
/proc/930/statm: 3067 317 242 3 0 167 0

[startup+0.0321749 s]
/proc/loadavg: 0.91 1.02 0.99 3/64 930
/proc/meminfo: memFree=1791616/2055920 swapFree=4183864/4192956
[pid=930] ppid=928 vsize=12400 CPUtime=0
/proc/930/stat : 930 (pbclasp) S 928 930 30972 0 -1 4194304 488 0 0 0 0 0 0 0 16 0 1 0 274987779 12697600 439 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 257423356002 0 0 4224 16384 18446744071563648864 0 0 17 0 0 0
/proc/930/statm: 3100 439 324 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

[startup+0.101184 s]
/proc/loadavg: 0.91 1.02 0.99 3/64 930
/proc/meminfo: memFree=1791616/2055920 swapFree=4183864/4192956
[pid=930] ppid=928 vsize=12400 CPUtime=0.02
/proc/930/stat : 930 (pbclasp) S 928 930 30972 0 -1 4194304 569 1591 0 0 0 0 2 0 16 0 1 0 274987779 12697600 458 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 257423359892 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/930/statm: 3100 458 342 3 0 200 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 12400

[startup+0.3012 s]
/proc/loadavg: 0.91 1.02 0.99 3/64 930
/proc/meminfo: memFree=1791616/2055920 swapFree=4183864/4192956
[pid=930] ppid=928 vsize=12400 CPUtime=0.21
/proc/930/stat : 930 (pbclasp) S 928 930 30972 0 -1 4194304 798 5080 0 0 0 0 18 3 16 0 1 0 274987779 12697600 461 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 257423359892 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/930/statm: 3100 461 342 3 0 200 0
Current children cumulated CPU time (s) 0.21
Current children cumulated vsize (KiB) 12400

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

[startup+0.501221 s]
/proc/loadavg: 0.91 1.02 0.99 3/64 930
/proc/meminfo: memFree=1791616/2055920 swapFree=4183864/4192956
[pid=930] ppid=928 vsize=12400 CPUtime=0.46
/proc/930/stat : 930 (pbclasp) S 928 930 30972 0 -1 4194304 1139 10317 0 0 0 0 40 6 16 0 1 0 274987779 12697600 461 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 257423359892 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/930/statm: 3100 461 342 3 0 200 0
Current children cumulated CPU time (s) 0.46
Current children cumulated vsize (KiB) 12400

[startup+0.601225 s]
/proc/loadavg: 0.91 1.02 0.99 3/64 930
/proc/meminfo: memFree=1791616/2055920 swapFree=4183864/4192956
[pid=930] ppid=928 vsize=12400 CPUtime=0.46
/proc/930/stat : 930 (pbclasp) S 928 930 30972 0 -1 4194304 1139 10317 0 0 0 0 40 6 16 0 1 0 274987779 12697600 461 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 257423359892 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/930/statm: 3100 461 342 3 0 200 0
Current children cumulated CPU time (s) 0.46
Current children cumulated vsize (KiB) 12400

Child status: 0
Real time (s): 0.674619
CPU time (s): 0.659899
CPU user time (s): 0.557915
CPU system time (s): 0.101984
CPU usage (%): 97.818
Max. virtual memory (cumulated for all children) (KiB): 12400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.557915
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14339
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= 419
involuntary context switches= 88

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Tue May  1 03:26:22 UTC 2007

IDJOB= 429950
IDBENCH= 47945
IDSOLVER= 167
FILE ID= node68/429950-1177989982

PBS_JOBID= 4727990

Free space on /tmp= 66564 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=23-P1=29-P2=23-P3=19-P4=2-P5=23-B.opb
COMMAND LINE= pbclasp instance-429950-1177989982.opb /tmp/evaluation/429950-1177989982/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node68/convwatcher-429950-1177989982 -o ROOT/results/node68/conversion-429950-1177989982 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/429950-1177989982/instance-429950-1177989982.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-429950-1177989982 -o ROOT/results/node68/solver-429950-1177989982 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-429950-1177989982.opb /tmp/evaluation/429950-1177989982/temp

META MD5SUM SOLVER= 1e5f480786d97be718f2223f2ffb5f36
MD5SUM BENCH=  af6a557bae55dcfbf0cc06cf0559c9b3

RANDOM SEED= 274696054

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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		: 3000.216
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		: 3000.216
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:       1792024 kB
Buffers:         10644 kB
Cached:         180404 kB
SwapCached:       2888 kB
Active:          61564 kB
Inactive:       139680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1792024 kB
SwapTotal:     4192956 kB
SwapFree:      4183864 kB
Dirty:             664 kB
Writeback:           0 kB
Mapped:          16112 kB
Slab:            48688 kB
Committed_AS:  3056852 kB
PageTables:       1384 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= 66564 MiB

End job on node68 on Tue May  1 03:26:23 UTC 2007