Trace number 361617

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
bsolo 3.0.16UNSAT 0.025995 0.05413

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-44s.smv.opb
MD5SUMba3977c9125baf6c78f0402072fa33d8
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 benchmark0.025995
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables495
Total number of constraints940
Number of constraints which are clauses800
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints140
Minimum length of a constraint1
Maximum length of a constraint13
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 68
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 257
Number of bits of the biggest sum of numbers9
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)

0.00/0.02	c bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.02	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.02	c type "bsolo -h" for help
0.00/0.02	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.02	c Time Limit set to 1800
0.00/0.02	c Memory Limit set to 1800 MB
0.00/0.03	c Instance file /tmp/evaluation/361617-1176984459/instance-361617-1176984459.opb
0.00/0.03	c File size is 35640 bytes.
0.00/0.03	c Highest Coefficient sum: 257
0.00/0.03	c Parsing was ok!!
0.00/0.03	c Total parsing time: 0.006 s
0.00/0.03	c Var: 495 Constr: 940 800/0/140 Lit: 3648 Watch. Lit: 2027
0.00/0.03	c Obj. Vars: 0 (0 % of total variables)
0.00/0.04	c Pre-processing Time: 0.011 s
0.00/0.04	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.04	c        0    232      302     2014    6      784    3250      0      0 0.01
0.00/0.04	c Switching off LPR mode.
0.00/0.05	c      100    222      402     3007    7     1556    3576    100   7142 0.01
0.00/0.05	c      251    221      553     4506    8     1814    3934    251  13210 0.02
0.00/0.05	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.00/0.05	c    2      343     35      539      645     5245    343  15590 0.02
0.00/0.05	s UNSATISFIABLE
0.00/0.05	c Total time: 0.022 s

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node23/watcher-361617-1176984459 -o ROOT/results/node23/solver-361617-1176984459 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/361617-1176984459/instance-361617-1176984459.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: 1.04 1.01 1.00 3/77 12764
/proc/meminfo: memFree=1831688/2055920 swapFree=4169120/4192956
[pid=12764] ppid=12762 vsize=2520 CPUtime=0
/proc/12764/stat : 12764 (bsolo3.0.16) D 12762 12764 11526 0 -1 4194304 57 0 1 0 0 0 0 0 18 0 1 0 146363050 2580480 41 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 2495268 0 2147483391 4096 0 18446744072099781622 0 0 17 0 0 0
/proc/12764/statm: 630 41 32 324 0 8 0

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

Child status: 0
Real time (s): 0.05413
CPU time (s): 0.025995
CPU user time (s): 0.021996
CPU system time (s): 0.003999
CPU usage (%): 48.0233
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.021996
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= 468
page faults= 6
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 19
involuntary context switches= 21

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node23 on Thu Apr 19 12:07:39 UTC 2007

IDJOB= 361617
IDBENCH= 1457
IDSOLVER= 163
FILE ID= node23/361617-1176984459

PBS_JOBID= 4630400

Free space on /tmp= 66451 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-44s.smv.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/361617-1176984459/instance-361617-1176984459.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-361617-1176984459 -o ROOT/results/node23/solver-361617-1176984459 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/361617-1176984459/instance-361617-1176984459.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  ba3977c9125baf6c78f0402072fa33d8

RANDOM SEED= 622768973

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node23.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		: 3000.276
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		: 3000.276
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:       1832096 kB
Buffers:         16476 kB
Cached:         118392 kB
SwapCached:       2288 kB
Active:          67624 kB
Inactive:        90684 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1832096 kB
SwapTotal:     4192956 kB
SwapFree:      4169120 kB
Dirty:            4516 kB
Writeback:           0 kB
Mapped:          30900 kB
Slab:            51008 kB
Committed_AS:  2459500 kB
PageTables:       1800 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= 66451 MiB

End job on node23 on Thu Apr 19 12:07:39 UTC 2007