Trace number 1880356

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 3.1 pbUNSAT 0.886864 0.887605

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/
aloul/FPGA_SAT05/normalized-chnl40_41_pb.cnf.cr.opb
MD5SUM0beb8de972e873a7bfc16369cb81d469
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.160974
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3280
Total number of constraints162
Number of constraints which are clauses82
Number of constraints which are cardinality constraints (but not clauses)80
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint40
Maximum length of a constraint41
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 42
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

Solver Data 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Learning Strategy: Generic Pseudo-Boolean Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1880356-1245127563.opb
0.00/0.00	c File size is 58242 bytes.
0.00/0.01	c Highest Coefficient sum: 42
0.00/0.01	c Parsing was ok!!
0.00/0.01	c Total parsing time: 0.009 s
0.00/0.01	c Var: 3280 Constr: 162 82/80/0 Lit: 6560 Watch. Lit: 3444
0.00/0.01	c Obj. Vars: 0 (0 % of total variables)
0.09/0.11	c Pre-processing Time: 0.116 s
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c        0   3280      162     6560   40     3444   43760      0      0 0.12
0.09/0.11	c Switching off lower bounding mode.
0.79/0.88	c      101   3280      334    53245  159    14881   48137    172    515 0.20
0.79/0.88	c      251   3280      575   155273  270    42408   52951    413    560 0.45
0.79/0.88	c Backtracks by Clause: 342
0.79/0.88	c Backtracks by PB constraint: 74
0.79/0.88	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.79/0.88	c    2      416    189    14967      868   301467    706    470 0.88
0.79/0.88	s UNSATISFIABLE
0.79/0.88	c Total time: 0.884 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1880356-1245127563/watcher-1880356-1245127563 -o /tmp/evaluation-result-1880356-1245127563/solver-1880356-1245127563 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880356-1245127563.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4239
/proc/meminfo: memFree=1951432/2055920 swapFree=4192812/4192956
[pid=4239] ppid=4237 vsize=18592 CPUtime=0
/proc/4239/stat : 4239 (bsolo) R 4237 4239 3233 0 -1 4194304 265 0 0 0 0 0 0 0 18 0 1 0 180353263 19038208 249 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4239/statm: 4648 250 174 640 0 3989 0

[startup+0.0123971 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4239
/proc/meminfo: memFree=1951432/2055920 swapFree=4192812/4192956
[pid=4239] ppid=4237 vsize=11288 CPUtime=0.01
/proc/4239/stat : 4239 (bsolo) R 4237 4239 3233 0 -1 4194304 415 0 0 0 1 0 0 0 18 0 1 0 180353263 11558912 384 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4239/statm: 2822 384 188 640 0 2178 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 11288

[startup+0.101406 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4239
/proc/meminfo: memFree=1951432/2055920 swapFree=4192812/4192956
[pid=4239] ppid=4237 vsize=11344 CPUtime=0.09
/proc/4239/stat : 4239 (bsolo) R 4237 4239 3233 0 -1 4194304 456 0 0 0 9 0 0 0 18 0 1 0 180353263 11616256 418 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4239/statm: 2836 418 190 640 0 2192 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11344

[startup+0.301425 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4239
/proc/meminfo: memFree=1951432/2055920 swapFree=4192812/4192956
[pid=4239] ppid=4237 vsize=13096 CPUtime=0.29
/proc/4239/stat : 4239 (bsolo) R 4237 4239 3233 0 -1 4194304 875 0 0 0 28 1 0 0 19 0 1 0 180353263 13410304 837 1992294400 134512640 137136520 4294956256 18446744073709551615 134551813 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4239/statm: 3274 837 196 640 0 2630 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13096

[startup+0.701466 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4239
/proc/meminfo: memFree=1951432/2055920 swapFree=4192812/4192956
[pid=4239] ppid=4237 vsize=15952 CPUtime=0.69
/proc/4239/stat : 4239 (bsolo) R 4237 4239 3233 0 -1 4194304 1589 0 0 0 67 2 0 0 23 0 1 0 180353263 16334848 1551 1992294400 134512640 137136520 4294956256 18446744073709551615 134544157 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4239/statm: 3988 1551 196 640 0 3344 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15952

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

[startup+0.801476 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 4239
/proc/meminfo: memFree=1951432/2055920 swapFree=4192812/4192956
[pid=4239] ppid=4237 vsize=16496 CPUtime=0.79
/proc/4239/stat : 4239 (bsolo) R 4237 4239 3233 0 -1 4194304 1754 0 0 0 77 2 0 0 23 0 1 0 180353263 16891904 1716 1992294400 134512640 137136520 4294956256 18446744073709551615 134544249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4239/statm: 4124 1718 196 640 0 3480 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 16496

Child status: 0
Real time (s): 0.887605
CPU time (s): 0.886864
CPU user time (s): 0.862868
CPU system time (s): 0.023996
CPU usage (%): 99.9165
Max. virtual memory (cumulated for all children) (KiB): 16496

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.862868
system time used= 0.023996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1841
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= 2
involuntary context switches= 1

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node45 at 2009-06-16 06:46:03
IDJOB=1880356
IDBENCH=1439
IDSOLVER=701
FILE ID=node45/1880356-1245127563
PBS_JOBID= 9363671
Free space on /tmp= 66172 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-chnl40_41_pb.cnf.cr.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880356-1245127563/watcher-1880356-1245127563 -o /tmp/evaluation-result-1880356-1245127563/solver-1880356-1245127563 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880356-1245127563.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0beb8de972e873a7bfc16369cb81d469
RANDOM SEED=1673886315

node45.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.240
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		: 3000.240
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:       1951912 kB
Buffers:          2124 kB
Cached:          39488 kB
SwapCached:        140 kB
Active:          31812 kB
Inactive:        23908 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1951912 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4000 kB
Writeback:           0 kB
Mapped:          23728 kB
Slab:            34380 kB
Committed_AS:   148220 kB
PageTables:       1380 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= 66168 MiB
End job on node45 at 2009-06-16 06:46:04