Trace number 458397

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 NameAnswerCPU timeWall clock time
PBS4_v2 2007-03-23UNSAT 0.121981 0.122076

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-blast-tlan2.ucl.opb
MD5SUM4e47a51846328cc5c7e86accfdb9dc80
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.12098
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables2221
Total number of constraints3050
Number of constraints which are clauses2330
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints720
Minimum length of a constraint1
Maximum length of a constraint19
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 641
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 2174
Number of bits of the biggest sum of numbers12
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/458397-1178622284/instance-458397-1178622284.opb ......
0.09/0.12	c done parsing opb.
0.09/0.12	s UNSATISFIABLE
0.09/0.12	c Total Run Time					0.050993

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458397-1178622284/instance-458397-1178622284.opb is already a linear file

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node1/watcher-458397-1178622284 -o ROOT/results/node1/solver-458397-1178622284 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458397-1178622284/instance-458397-1178622284.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: 0.86 0.95 0.91 3/77 2163
/proc/meminfo: memFree=1749224/2055920 swapFree=4145760/4192956
[pid=2163] ppid=2161 vsize=1676 CPUtime=0
/proc/2163/stat : 2163 (PBS4_SAT07v2) R 2161 2163 964 0 -1 4194304 204 0 0 0 0 0 0 0 18 0 1 0 338266296 1716224 186 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134530021 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2163/statm: 419 186 86 219 0 196 0

[startup+0.0534319 s]
/proc/loadavg: 0.86 0.95 0.91 3/77 2163
/proc/meminfo: memFree=1749224/2055920 swapFree=4145760/4192956
[pid=2163] ppid=2161 vsize=2000 CPUtime=0.05
/proc/2163/stat : 2163 (PBS4_SAT07v2) R 2161 2163 964 0 -1 4194304 312 0 0 0 5 0 0 0 18 0 1 0 338266296 2048000 294 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134640492 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2163/statm: 500 294 86 219 0 277 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2000

[startup+0.101437 s]
/proc/loadavg: 0.86 0.95 0.91 3/77 2163
/proc/meminfo: memFree=1749224/2055920 swapFree=4145760/4192956
[pid=2163] ppid=2161 vsize=2292 CPUtime=0.09
/proc/2163/stat : 2163 (PBS4_SAT07v2) R 2161 2163 964 0 -1 4194304 378 0 0 0 9 0 0 0 18 0 1 0 338266296 2347008 360 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2163/statm: 573 360 90 219 0 350 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2292

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

Child status: 0
Real time (s): 0.122076
CPU time (s): 0.121981
CPU user time (s): 0.117982
CPU system time (s): 0.003999
CPU usage (%): 99.9222
Max. virtual memory (cumulated for all children) (KiB): 2292

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.117982
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 401
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= 2

runsolver used 0.006998 second user time and 0.001999 second system time

The end

Launcher Data (download as text)

Begin job on node1 on Tue May  8 11:04:45 UTC 2007

IDJOB= 458397
IDBENCH= 1474
IDSOLVER= 200
FILE ID= node1/458397-1178622284

PBS_JOBID= 5217786

Free space on /tmp= 54612 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-blast-tlan2.ucl.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458397-1178622284/instance-458397-1178622284.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node1/convwatcher-458397-1178622284 -o ROOT/results/node1/conversion-458397-1178622284 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458397-1178622284/instance-458397-1178622284.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-458397-1178622284 -o ROOT/results/node1/solver-458397-1178622284 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458397-1178622284/instance-458397-1178622284.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  4e47a51846328cc5c7e86accfdb9dc80

RANDOM SEED= 536439982

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node1.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		: 3000.234
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:       1749696 kB
Buffers:         37832 kB
Cached:         150472 kB
SwapCached:      14608 kB
Active:         120068 kB
Inactive:        97068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1749696 kB
SwapTotal:     4192956 kB
SwapFree:      4145760 kB
Dirty:            2688 kB
Writeback:           0 kB
Mapped:          35904 kB
Slab:            74556 kB
Committed_AS:  9664820 kB
PageTables:       1848 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= 54612 MiB

End job on node1 on Tue May  8 11:04:45 UTC 2007