Trace number 361583

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 2007-03-23UNSAT 0.217966 0.22014

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-elf.rf8.ucl.opb
MD5SUMe5e9e70aacd6f12ca1d11bb54ad048ed
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 benchmark0.217966
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6059
Total number of constraints16684
Number of constraints which are clauses15940
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints744
Minimum length of a constraint1
Maximum length of a constraint11
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 34
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 127
Number of bits of the biggest sum of numbers7
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/361583-1176984406/instance-361583-1176984406.opb ......
0.19/0.21	c done parsing opb.
0.19/0.21	s UNSATISFIABLE
0.19/0.21	c Total Run Time					0.029995

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/361583-1176984406/instance-361583-1176984406.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-361583-1176984406 -o ROOT/results/node2/solver-361583-1176984406 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/361583-1176984406/PBS4 /tmp/evaluation/361583-1176984406/instance-361583-1176984406.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: 0.92 0.98 0.99 3/77 28172
/proc/meminfo: memFree=1567864/2055920 swapFree=4149056/4192956
[pid=28172] ppid=28170 vsize=2048 CPUtime=0
/proc/28172/stat : 28172 (PBS4) R 28170 28172 26887 0 -1 4194304 327 0 0 0 0 0 0 0 18 0 1 0 174478371 2097152 309 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135157822 0 0 4096 0 0 0 0 17 1 0 0
/proc/28172/statm: 545 312 87 219 0 322 0

[startup+0.0270109 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28172
/proc/meminfo: memFree=1567864/2055920 swapFree=4149056/4192956
[pid=28172] ppid=28170 vsize=2364 CPUtime=0.02
/proc/28172/stat : 28172 (PBS4) R 28170 28172 26887 0 -1 4194304 386 0 0 0 2 0 0 0 18 0 1 0 174478371 2420736 368 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134590670 0 0 4096 0 0 0 0 17 1 0 0
/proc/28172/statm: 591 368 87 219 0 368 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2364

[startup+0.103017 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28172
/proc/meminfo: memFree=1567864/2055920 swapFree=4149056/4192956
[pid=28172] ppid=28170 vsize=3008 CPUtime=0.09
/proc/28172/stat : 28172 (PBS4) R 28170 28172 26887 0 -1 4194304 576 0 0 0 9 0 0 0 18 0 1 0 174478371 3080192 510 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596339 0 0 4096 0 0 0 0 17 1 0 0
/proc/28172/statm: 752 510 89 219 0 529 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3008

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

[startup+0.202026 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 28172
/proc/meminfo: memFree=1567864/2055920 swapFree=4149056/4192956
[pid=28172] ppid=28170 vsize=3604 CPUtime=0.19
/proc/28172/stat : 28172 (PBS4) R 28170 28172 26887 0 -1 4194304 789 0 0 0 19 0 0 0 18 0 1 0 174478371 3690496 722 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135006597 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28172/statm: 901 722 94 219 0 678 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3604

Child status: 0
Real time (s): 0.22014
CPU time (s): 0.217966
CPU user time (s): 0.213967
CPU system time (s): 0.003999
CPU usage (%): 99.0124
Max. virtual memory (cumulated for all children) (KiB): 3604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.213967
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= 816
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= 4

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Thu Apr 19 12:06:46 UTC 2007

IDJOB= 361583
IDBENCH= 1455
IDSOLVER= 157
FILE ID= node2/361583-1176984406

PBS_JOBID= 4630398

Free space on /tmp= 66400 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-elf.rf8.ucl.opb
COMMAND LINE= /tmp/evaluation/361583-1176984406/PBS4 /tmp/evaluation/361583-1176984406/instance-361583-1176984406.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node2/convwatcher-361583-1176984406 -o ROOT/results/node2/conversion-361583-1176984406 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/361583-1176984406/instance-361583-1176984406.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-361583-1176984406 -o ROOT/results/node2/solver-361583-1176984406 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/361583-1176984406/PBS4 /tmp/evaluation/361583-1176984406/instance-361583-1176984406.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  e5e9e70aacd6f12ca1d11bb54ad048ed

RANDOM SEED= 674456625

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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:       1568336 kB
Buffers:         37740 kB
Cached:         366168 kB
SwapCached:      12252 kB
Active:         301368 kB
Inactive:       126520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1568336 kB
SwapTotal:     4192956 kB
SwapFree:      4149056 kB
Dirty:            1816 kB
Writeback:           0 kB
Mapped:          31004 kB
Slab:            45172 kB
Committed_AS:  7187596 kB
PageTables:       1860 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= 66400 MiB

End job on node2 on Thu Apr 19 12:06:46 UTC 2007