Trace number 2074617

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
SAT4J CSP 2.1.1UNSAT 0.867867 0.630183

General information on the benchmark

Namecsp/aim-200/
normalized-aim-200-1-6-unsat-1_ext.xml
MD5SUMffa432f46e90a621dac89c8454793622
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.014996
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints308
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension308
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.09/0.13	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.09/0.13	c This is free software under the dual EPL/GNU LGPL licenses.
0.09/0.13	c See www.sat4j.org for details.
0.09/0.13	c That software uses the Rhino library from the Mozilla project.
0.09/0.14	c version 2.1.1.v20090622
0.09/0.14	c sun.arch.data.model	32
0.09/0.14	c java.version	1.6.0_12
0.09/0.14	c os.name	Linux
0.09/0.14	c os.version	2.6.9-22.EL.rootsmp
0.09/0.14	c os.arch	i386
0.09/0.14	c Free memory 671000808
0.09/0.14	c Max memory 672137216
0.09/0.14	c Total memory 672137216
0.09/0.14	c Number of processors 2
0.09/0.19	c c --- Begin Solver configuration ---
0.09/0.19	c Stops conflict analysis at the first Unique Implication Point
0.09/0.19	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@1f934ad
0.09/0.19	c Learn all clauses as in MiniSAT
0.09/0.19	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.09/0.19	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause
0.09/0.19	c Expensive reason simplification
0.09/0.19	c MiniSAT restarts strategy
0.09/0.19	c Memory based learned constraints deletion strategy
0.09/0.19	c timeout=2147483s
0.09/0.19	c DB Simplification allowed=false
0.09/0.19	c --- End Solver configuration ---
0.09/0.19	c solving HOME/instance-2074617-1247359270.xml
0.09/0.19	c reading problem ... 
0.38/0.34	c reading problem named null
0.38/0.34	c reading domains done.
0.38/0.34	c reading variables done.
0.38/0.39	c reading relations done.
0.52/0.40	c reading constraints
0.66/0.54	c done with constraints.
0.66/0.54	c ... done. Wall clock time 0.349s.
0.66/0.54	c #vars     400
0.66/0.54	c #constraints  720
0.66/0.54	c constraints type 
0.66/0.54	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 319
0.66/0.54	c org.sat4j.minisat.constraints.card.AtLeast => 200
0.66/0.54	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 201
0.66/0.59	c starts		: 1
0.66/0.59	c conflicts		: 33
0.66/0.59	c decisions		: 329
0.66/0.59	c propagations		: 1611
0.66/0.59	c inspects		: 2793
0.66/0.59	c learnt literals	: 2
0.66/0.59	c learnt binary clauses	: 13
0.66/0.59	c learnt ternary clauses	: 16
0.66/0.59	c learnt clauses	: 30
0.66/0.59	c ignored clauses	: 0
0.66/0.59	c root simplifications	: 0
0.66/0.59	c removed literals (reason simplification)	: 1
0.66/0.59	c reason swapping (by a shorter reason)	: 0
0.66/0.59	c Calls to reduceDB	: 0
0.66/0.59	c speed (assignments/second)	: 33562.5
0.66/0.59	c non guided choices	216
0.66/0.59	c learnt constraints type 
0.66/0.59	c org.sat4j.minisat.constraints.cnf.LearntBinaryClause => 13
0.66/0.59	c org.sat4j.minisat.constraints.cnf.LearntWLClause => 17
0.66/0.59	c constraints type 
0.66/0.59	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 319
0.66/0.59	c org.sat4j.minisat.constraints.card.AtLeast => 200
0.66/0.59	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 201
0.66/0.59	s UNSATISFIABLE
0.66/0.59	c Total wall clock time (in seconds) : 0.398

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2074617-1247359270/watcher-2074617-1247359270 -o /tmp/evaluation-result-2074617-1247359270/solver-2074617-1247359270 -C 1800 -W 2000 -M 900 java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2074617-1247359270.xml 

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): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.34 0.98 1.55 3/67 18962
/proc/meminfo: memFree=1884368/2055920 swapFree=4192812/4192956
[pid=18962] ppid=18960 vsize=1612 CPUtime=0
/proc/18962/stat : 18962 (java6) R 18960 18962 16349 0 -1 0 151 0 0 0 0 0 0 0 20 0 1 0 22992972 1650688 123 996147200 134512640 134550932 4294956176 18446744073709551615 4160589855 0 0 4096 0 0 0 0 17 1 0 0
/proc/18962/statm: 403 123 87 9 0 45 0

[startup+0.022384 s]
/proc/loadavg: 0.34 0.98 1.55 3/67 18962
/proc/meminfo: memFree=1884368/2055920 swapFree=4192812/4192956
[pid=18962] ppid=18960 vsize=798080 CPUtime=0.01
/proc/18962/stat : 18962 (java) S 18960 18962 16349 0 -1 0 1647 0 1 0 0 1 0 0 18 0 3 0 22992972 817233920 1396 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/18962/statm: 199520 1396 413 9 0 197272 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 798080

[startup+0.102167 s]
/proc/loadavg: 0.34 0.98 1.55 3/67 18962
/proc/meminfo: memFree=1884368/2055920 swapFree=4192812/4192956
[pid=18962] ppid=18960 vsize=804560 CPUtime=0.09
/proc/18962/stat : 18962 (java) S 18960 18962 16349 0 -1 0 3052 0 1 0 7 2 0 0 18 0 12 0 22992972 823869440 2795 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/18962/statm: 201140 2795 1083 9 0 198474 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 804560

[startup+0.302179 s]
/proc/loadavg: 0.34 0.98 1.55 3/67 18962
/proc/meminfo: memFree=1884368/2055920 swapFree=4192812/4192956
[pid=18962] ppid=18960 vsize=809012 CPUtime=0.38
/proc/18962/stat : 18962 (java) S 18960 18962 16349 0 -1 0 5252 0 1 0 34 4 0 0 18 0 12 0 22992972 828428288 4781 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/18962/statm: 202253 4781 1382 9 0 199580 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 809012

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

[startup+0.502194 s]
/proc/loadavg: 0.34 0.98 1.55 3/67 18962
/proc/meminfo: memFree=1884368/2055920 swapFree=4192812/4192956
[pid=18962] ppid=18960 vsize=808596 CPUtime=0.66
/proc/18962/stat : 18962 (java) S 18960 18962 16349 0 -1 0 5728 0 1 0 62 4 0 0 18 0 12 0 22992972 828002304 5204 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/18962/statm: 202149 5204 1389 9 0 199476 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 808596

[startup+0.602204 s]
/proc/loadavg: 0.34 0.98 1.55 3/67 18962
/proc/meminfo: memFree=1884368/2055920 swapFree=4192812/4192956
[pid=18962] ppid=18960 vsize=808920 CPUtime=0.84
/proc/18962/stat : 18962 (java) S 18960 18962 16349 0 -1 0 6146 0 1 0 79 5 0 0 18 0 12 0 22992972 828334080 5328 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/18962/statm: 202230 5328 1395 9 0 199557 0
Current children cumulated CPU time (s) 0.84
Current children cumulated vsize (KiB) 808920

Child status: 0
Real time (s): 0.630183
CPU time (s): 0.867867
CPU user time (s): 0.805877
CPU system time (s): 0.06199
CPU usage (%): 137.717
Max. virtual memory (cumulated for all children) (KiB): 809012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.805877
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6400
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 180
involuntary context switches= 133

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node34 at 2009-07-12 02:41:10
IDJOB=2074617
IDBENCH=56118
IDSOLVER=731
FILE ID=node34/2074617-1247359270
PBS_JOBID= 9506850
Free space on /tmp= 66296 MiB

SOLVER NAME= SAT4J CSP 2.1.1
BENCH NAME= CPAI08/csp/aim-200/normalized-aim-200-1-6-unsat-1_ext.xml
COMMAND LINE= java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074617-1247359270/watcher-2074617-1247359270 -o /tmp/evaluation-result-2074617-1247359270/solver-2074617-1247359270 -C 1800 -W 2000 -M 900  java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2074617-1247359270.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ffa432f46e90a621dac89c8454793622
RANDOM SEED=1970570629

node34.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		: 3000.232
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		: 3000.232
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:       1884848 kB
Buffers:         15936 kB
Cached:          91028 kB
SwapCached:          0 kB
Active:          95124 kB
Inactive:        27316 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1884848 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1516 kB
Writeback:           0 kB
Mapped:          25312 kB
Slab:            34408 kB
Committed_AS:   131128 kB
PageTables:       1592 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= 66296 MiB
End job on node34 at 2009-07-12 02:41:10