Trace number 430746

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
Pueblo 1.4OPT2 0.009997 0.012092

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=5-P0=2-P1=23-P2=17-B.opb
MD5SUM29850f33625e3b214e4f3b0387fb69a5
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 benchmark0.009997
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 variables30
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 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)50
Sum of products size (including duplicates)100
Number of different products50
Sum of products size100

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 Pueblo version 1.4 (September 2005)
0.00/0.00	c Developed @ University of Michigan, Ann Arbor, MI
0.00/0.00	c  by Hossein Sheini
0.00/0.00	c starting to Solve
0.00/0.00	c #variables read: 80 - #constraints read: 108
0.00/0.01	o 17
0.00/0.01	o 3
0.00/0.01	o 2
0.00/0.01	c optimum objective found = 2
0.00/0.01	c total time              : 0 s
0.00/0.01	s OPTIMUM FOUND
0.00/0.01	v -x1 x2 -x3 -x4 -x5 x6 -x7 x8 -x9 -x10 x11 x12 -x13 x14 -x15 -x31 x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 x42 -x43 -x44 -x45
0.00/0.01	v -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x16 x17 -x18 x19 -x20 -x21 -x22 -x23 -x24 -x25 -x56 x57 -x58 x59 -x60 -x61 x62
0.00/0.01	v -x63 x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 x72 -x73 x74 -x75 -x76 -x77 -x78 -x79 -x80 x26 x27 -x28 -x29 -x30

Verifier Data (download as text)

OK	2

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/430746-1177998256/instance-430746-1177998256.opb

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node57/watcher-430746-1177998256 -o ROOT/results/node57/solver-430746-1177998256 -C 1800 -W 3600 -M 1800 --output-limit 1,15 Pueblo /tmp/evaluation/430746-1177998256/instance-430746-1177998256.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: 0.79 0.94 0.98 2/64 27078
/proc/meminfo: memFree=1788304/2055920 swapFree=4183136/4192956
[pid=27078] ppid=27076 vsize=2552 CPUtime=0
/proc/27078/stat : 27078 (Pueblo) R 27076 27078 25802 0 -1 4194304 263 0 0 0 0 0 0 0 18 0 1 0 240961629 2613248 234 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134534260 0 0 4096 0 0 0 0 17 1 0 0
/proc/27078/statm: 638 234 199 16 0 77 0

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

Child status: 30
Real time (s): 0.012092
CPU time (s): 0.009997
CPU user time (s): 0.007998
CPU system time (s): 0.001999
CPU usage (%): 82.6745
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.007998
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= 285
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= 9

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node57 on Tue May  1 05:44:17 UTC 2007

IDJOB= 430746
IDBENCH= 48002
IDSOLVER= 165
FILE ID= node57/430746-1177998256

PBS_JOBID= 4728230

Free space on /tmp= 66562 MiB

SOLVER NAME= Pueblo 1.4
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=2-P1=23-P2=17-B.opb
COMMAND LINE= Pueblo /tmp/evaluation/430746-1177998256/instance-430746-1177998256.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node57/convwatcher-430746-1177998256 -o ROOT/results/node57/conversion-430746-1177998256 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/430746-1177998256/instance-430746-1177998256.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node57/watcher-430746-1177998256 -o ROOT/results/node57/solver-430746-1177998256 -C 1800 -W 3600 -M 1800 --output-limit 1,15  Pueblo /tmp/evaluation/430746-1177998256/instance-430746-1177998256.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  29850f33625e3b214e4f3b0387fb69a5

RANDOM SEED= 558273168

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node57.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		: 3000.239
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		: 3000.239
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:       1788648 kB
Buffers:         21860 kB
Cached:         175588 kB
SwapCached:       3628 kB
Active:          57188 kB
Inactive:       151216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1788648 kB
SwapTotal:     4192956 kB
SwapFree:      4183136 kB
Dirty:            2456 kB
Writeback:           0 kB
Mapped:          16324 kB
Slab:            44964 kB
Committed_AS:  3716544 kB
PageTables:       1412 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= 66562 MiB

End job on node57 on Tue May  1 05:44:17 UTC 2007