Trace number 373175

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
oree 0.1.2 alphaOPT30 0.011997 0.017518

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/aksoy/
area_partials/normalized-fir04_area_partials.opb
MD5SUM95f6cd76e0e9cbaf8e95e1cd4db90f8e
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark30
Best CPU time to get the best result obtained on this benchmark0.001998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 30
Optimality of the best value was proved YES
Number of variables54
Total number of constraints69
Number of constraints which are clauses69
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint11
Number of terms in the objective function 43
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 43
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 43
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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 This is oree version 0.1.2 alpha
0.00/0.00	c (c) roussel@cril.univ-artois.fr
0.00/0.00	c using __gmp_expr<__gmpz_value, __gmpz_value>
0.00/0.00	c parsing...
0.00/0.00	c ...done
0.00/0.00	c #vars=54 #constraints=70 hasObjective=yes
0.00/0.00	c res. mode=mod
0.00/0.00	c VSIDS like heuristics
0.00/0.00	c complete search running
0.00/0.00	c nbDecision=17 #constraints=70
0.00/0.00	c linear search for optimum
0.00/0.00	o 36
0.00/0.00	c nbDecision=21 #constraints=72
0.00/0.00	o 35
0.00/0.00	c nbDecision=26 #constraints=75
0.00/0.00	o 34
0.00/0.00	c nbDecision=32 #constraints=78
0.00/0.00	o 33
0.00/0.00	c nbDecision=41 #constraints=83
0.00/0.00	o 32
0.00/0.01	c nbDecision=50 #constraints=88
0.00/0.01	o 31
0.00/0.01	c nbDecision=54 #constraints=90
0.00/0.01	o 30
0.00/0.01	c nbDecision=54 #constraints=91
0.00/0.01	
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 x16 x17 x18 x19 x20 x21 x22 x23 x24 x25 x26 x27 x28 -x29 x30 -x31 -x32 -x33 -x34 -x35
0.00/0.01	v -x36 x37 -x38 x39 -x40 -x41 x42 -x43 -x44 x45 -x46 -x47 x48 -x49 -x50 x51 -x52 -x53 -x54
0.00/0.01	
0.00/0.01	c user time= 0.009998 s
0.00/0.01	c system time= 0.000999 s
0.00/0.01	c wall clock time=0.010873

Verifier Data (download as text)

OK	30

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node46/watcher-373175-1177365007 -o ROOT/results/node46/solver-373175-1177365007 -C 1800 -W 3600 -M 1800 --output-limit 1,15 oree /tmp/evaluation/373175-1177365007/instance-373175-1177365007.opb mod 

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: 1.08 1.04 0.99 3/78 27746
/proc/meminfo: memFree=1759296/2055920 swapFree=4159760/4192956
[pid=27746] ppid=27744 vsize=1468 CPUtime=0
/proc/27746/stat : 27746 (oree) R 27744 27746 27055 0 -1 4194304 218 0 0 0 0 0 0 0 18 0 1 0 91183782 1503232 202 18446744073709551615 134512640 135812674 4294956592 18446744073709551615 134596223 0 0 4096 17474 0 0 0 17 1 0 0
/proc/27746/statm: 367 202 170 317 0 46 0

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

Child status: 0
Real time (s): 0.017518
CPU time (s): 0.011997
CPU user time (s): 0.010998
CPU system time (s): 0.000999
CPU usage (%): 68.484
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.010998
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 241
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= 8
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node46 on Mon Apr 23 21:50:08 UTC 2007

IDJOB= 373175
IDBENCH= 25024
IDSOLVER= 172
FILE ID= node46/373175-1177365007

PBS_JOBID= 4675207

Free space on /tmp= 66083 MiB

SOLVER NAME= oree 0.1.2 alpha
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/aksoy/area_partials/normalized-fir04_area_partials.opb
COMMAND LINE= oree /tmp/evaluation/373175-1177365007/instance-373175-1177365007.opb mod           
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node46/watcher-373175-1177365007 -o ROOT/results/node46/solver-373175-1177365007 -C 1800 -W 3600 -M 1800 --output-limit 1,15  oree /tmp/evaluation/373175-1177365007/instance-373175-1177365007.opb mod           

META MD5SUM SOLVER= 4e41df0f0543e325f03c5155f85b9e9b
MD5SUM BENCH=  95f6cd76e0e9cbaf8e95e1cd4db90f8e

RANDOM SEED= 330719198

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node46.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		: 3000.268
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		: 3000.268
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:       1759704 kB
Buffers:         45488 kB
Cached:         154876 kB
SwapCached:       3092 kB
Active:         101144 kB
Inactive:       123392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1759704 kB
SwapTotal:     4192956 kB
SwapFree:      4159760 kB
Dirty:            1508 kB
Writeback:           0 kB
Mapped:          31580 kB
Slab:            56996 kB
Committed_AS:  3431100 kB
PageTables:       1996 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= 66083 MiB

End job on node46 on Mon Apr 23 21:50:08 UTC 2007