Trace number 1884634

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 0.913861 0.914768

General information on the benchmark

Name/PURE-SAT/SAT09/CRAFTED/
modcircuits/owp_4vars_5gates.opb
MD5SUM5e53057f88370cad9f03360ea174025c
Bench CategoryPURE-SAT (instances containing only clauses)
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 benchmark0.264959
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables267
Total number of constraints23747
Number of constraints which are clauses23747
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 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 4
Number of bits of the biggest number in a constraint 3
Biggest sum of numbers in a constraint 20
Number of bits of the biggest sum of numbers5
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-1884634-1245259777.opb
0.00/0.00	c File size is 1218982 bytes.
0.09/0.16	c Highest Coefficient sum: 20
0.09/0.16	c Parsing was ok!!
0.09/0.16	c Total parsing time: 0.165 s
0.09/0.17	c Var: 267 Constr: 23747 23747/0/0 Lit: 136362 Watch. Lit: 47430
0.09/0.17	c Obj. Vars: 0 (0 % of total variables)
0.29/0.39	c Formula reductions applied at preprocessing
0.29/0.39	c Pre-processing Time: 0.394 s
0.50/0.56	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.50/0.56	c        0    162     5314    29512    5    10628    1771      0      0 0.39
0.50/0.56	c Initial Lower Bound: 0
0.50/0.56	c Initial Path Cost: 0
0.89/0.91	c      100    162     5430    30660    5    10860    1949    116    175 0.57
0.89/0.91	c      251    162     5587    32381    5    11174    2144    273    430 0.58
0.89/0.91	c      477    162     5884    36534    6    11768    2359    570    766 0.62
0.89/0.91	c      815    161     6264    41417    6    12527    2595    950   1218 0.67
0.89/0.91	c     1324    161     6842    49805    7    13683    2855   1528   1732 0.76
0.89/0.91	c     2089    159     7699    60314    7    15393    3141   2385   2352 0.89
0.89/0.91	c Backtracks by Clause: 2241
0.89/0.91	c Backtracks by PB constraint: 5
0.89/0.91	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.89/0.91	c    6     2246    729     4167     7868    61383   2554   2465 0.91
0.89/0.91	s UNSATISFIABLE
0.89/0.91	c Total time: 0.911 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-1884634-1245259777/watcher-1884634-1245259777 -o /tmp/evaluation-result-1884634-1245259777/solver-1884634-1245259777 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1884634-1245259777.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: 1.08 1.03 0.94 3/64 14028
/proc/meminfo: memFree=1859000/2055920 swapFree=4181928/4192956
[pid=14028] ppid=14026 vsize=19712 CPUtime=0
/proc/14028/stat : 14028 (bsolo) R 14026 14028 13785 0 -1 4194304 254 0 0 0 0 0 0 0 18 0 1 0 193578512 20185088 238 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14028/statm: 4929 238 176 640 0 3987 0

[startup+0.061786 s]
/proc/loadavg: 1.08 1.03 0.94 3/64 14028
/proc/meminfo: memFree=1859000/2055920 swapFree=4181928/4192956
[pid=14028] ppid=14026 vsize=13124 CPUtime=0.05
/proc/14028/stat : 14028 (bsolo) R 14026 14028 13785 0 -1 4194304 666 0 0 0 5 0 0 0 18 0 1 0 193578512 13438976 650 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14028/statm: 3281 651 283 640 0 2339 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 13124

[startup+0.101793 s]
/proc/loadavg: 1.08 1.03 0.94 3/64 14028
/proc/meminfo: memFree=1859000/2055920 swapFree=4181928/4192956
[pid=14028] ppid=14026 vsize=13936 CPUtime=0.09
/proc/14028/stat : 14028 (bsolo) R 14026 14028 13785 0 -1 4194304 934 0 0 0 9 0 0 0 18 0 1 0 193578512 14270464 918 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14028/statm: 3484 918 354 640 0 2542 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13936

[startup+0.301829 s]
/proc/loadavg: 1.08 1.03 0.94 3/64 14028
/proc/meminfo: memFree=1859000/2055920 swapFree=4181928/4192956
[pid=14028] ppid=14026 vsize=15156 CPUtime=0.29
/proc/14028/stat : 14028 (bsolo) R 14026 14028 13785 0 -1 4194304 1671 0 0 0 29 0 0 0 19 0 1 0 193578512 15519744 1357 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14028/statm: 3789 1357 193 640 0 3145 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15156

[startup+0.701904 s]
/proc/loadavg: 1.08 1.03 0.94 3/64 14028
/proc/meminfo: memFree=1859000/2055920 swapFree=4181928/4192956
[pid=14028] ppid=14026 vsize=15852 CPUtime=0.69
/proc/14028/stat : 14028 (bsolo) R 14026 14028 13785 0 -1 4194304 8181 0 0 0 66 3 0 0 23 0 1 0 193578512 16232448 1659 1992294400 134512640 137136520 4294956256 18446744073709551615 136518848 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14028/statm: 3963 1659 294 640 0 3319 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15852

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

[startup+0.901939 s]
/proc/loadavg: 1.08 1.03 0.94 3/64 14028
/proc/meminfo: memFree=1859000/2055920 swapFree=4181928/4192956
[pid=14028] ppid=14026 vsize=15852 CPUtime=0.89
/proc/14028/stat : 14028 (bsolo) R 14026 14028 13785 0 -1 4194304 8181 0 0 0 86 3 0 0 25 0 1 0 193578512 16232448 1659 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14028/statm: 3963 1659 294 640 0 3319 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 15852

Child status: 0
Real time (s): 0.914768
CPU time (s): 0.913861
CPU user time (s): 0.874867
CPU system time (s): 0.038994
CPU usage (%): 99.9008
Max. virtual memory (cumulated for all children) (KiB): 15852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.874867
system time used= 0.038994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8182
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= 4

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node7 at 2009-06-17 19:29:37
IDJOB=1884634
IDBENCH=71976
IDSOLVER=701
FILE ID=node7/1884634-1245259777
PBS_JOBID= 9372446
Free space on /tmp= 66272 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB09/normalized-PB09/PURE-SAT/SAT09/CRAFTED/modcircuits/owp_4vars_5gates.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1884634-1245259777/watcher-1884634-1245259777 -o /tmp/evaluation-result-1884634-1245259777/solver-1884634-1245259777 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1884634-1245259777.opb

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

MD5SUM BENCH= 5e53057f88370cad9f03360ea174025c
RANDOM SEED=338412043

node7.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		: 3000.274
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		: 3000.274
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:       1859416 kB
Buffers:         40140 kB
Cached:          94324 kB
SwapCached:       5072 kB
Active:          27912 kB
Inactive:       114708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1859416 kB
SwapTotal:     4192956 kB
SwapFree:      4181928 kB
Dirty:            5132 kB
Writeback:           0 kB
Mapped:          14360 kB
Slab:            39812 kB
Committed_AS:   186044 kB
PageTables:       1444 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1884634-1245259777.opb

Free space on /tmp at the end= 66268 MiB
End job on node7 at 2009-06-17 19:29:38