Trace number 2073792

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 2.1.1SAT 0.736887 0.783753

General information on the benchmark

Namecsp/aim-50/
normalized-aim-50-6-0-sat-4_ext.xml
MD5SUMe7463865184f91144af9492a7dc22538
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of constraints273
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension273
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.08/0.14	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.14	c See www.sat4j.org for details.
0.08/0.14	c That software uses the Rhino library from the Mozilla project.
0.08/0.16	c version 2.1.1.v20090622
0.08/0.16	c sun.arch.data.model	32
0.08/0.16	c java.version	1.6.0_12
0.08/0.16	c os.name	Linux
0.08/0.16	c os.version	2.6.9-22.EL.rootsmp
0.08/0.16	c os.arch	i386
0.08/0.16	c Free memory 671000808
0.08/0.16	c Max memory 672137216
0.08/0.16	c Total memory 672137216
0.08/0.16	c Number of processors 2
0.17/0.25	c c --- Begin Solver configuration ---
0.17/0.25	c Stops conflict analysis at the first Unique Implication Point
0.17/0.25	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@1f14ceb
0.17/0.25	c Learn all clauses as in MiniSAT
0.17/0.25	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.17/0.25	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause
0.17/0.25	c Expensive reason simplification
0.17/0.25	c MiniSAT restarts strategy
0.17/0.25	c Memory based learned constraints deletion strategy
0.17/0.25	c timeout=2147483s
0.17/0.25	c DB Simplification allowed=false
0.17/0.25	c --- End Solver configuration ---
0.17/0.25	c solving HOME/instance-2073792-1247358971.xml
0.17/0.25	c reading problem ... 
0.48/0.50	c reading problem named null
0.48/0.51	c reading domains done.
0.48/0.51	c reading variables done.
0.48/0.53	c reading relations done.
0.48/0.54	c reading constraints
0.67/0.72	c done with constraints.
0.67/0.72	c ... done. Wall clock time 0.469s.
0.67/0.72	c #vars     100
0.67/0.72	c #constraints  399
0.67/0.72	c constraints type 
0.67/0.72	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 298
0.67/0.72	c org.sat4j.minisat.constraints.card.AtLeast => 50
0.67/0.72	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 51
0.67/0.75	c starts		: 1
0.67/0.75	c conflicts		: 27
0.67/0.75	c decisions		: 35
0.67/0.75	c propagations		: 751
0.67/0.75	c inspects		: 2703
0.67/0.75	c learnt literals	: 2
0.67/0.75	c learnt binary clauses	: 10
0.67/0.75	c learnt ternary clauses	: 8
0.67/0.75	c learnt clauses	: 25
0.67/0.75	c ignored clauses	: 0
0.67/0.75	c root simplifications	: 0
0.67/0.75	c removed literals (reason simplification)	: 12
0.67/0.75	c reason swapping (by a shorter reason)	: 0
0.67/0.75	c Calls to reduceDB	: 0
0.67/0.75	c speed (assignments/second)	: 27814.814814814814
0.67/0.75	c non guided choices	6
0.67/0.75	c learnt constraints type 
0.67/0.75	c org.sat4j.minisat.constraints.cnf.LearntBinaryClause => 10
0.67/0.75	c org.sat4j.minisat.constraints.cnf.LearntWLClause => 15
0.67/0.75	c constraints type 
0.67/0.75	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 298
0.67/0.75	c org.sat4j.minisat.constraints.card.AtLeast => 50
0.67/0.75	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 51
0.67/0.75	s SATISFIABLE
0.67/0.75	v 0 0 1 1 0 1 1 0 1 1 0 1 0 1 1 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 0 0 0 1 1 0 1 0 1 1 1 0 0 0 0 0 1 
0.67/0.75	c Total wall clock time (in seconds) : 0.497

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2073792-1247358971/watcher-2073792-1247358971 -o /tmp/evaluation-result-2073792-1247358971/solver-2073792-1247358971 -C 1800 -W 2000 -M 900 java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2073792-1247358971.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: 1.91 2.02 2.01 4/80 17801
/proc/meminfo: memFree=1796840/2055920 swapFree=4192812/4192956
[pid=17801] ppid=17799 vsize=18576 CPUtime=0
/proc/17801/stat : 17801 (runsolver) R 17799 17801 16349 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 22963113 19021824 284 996147200 4194304 4302564 548682068448 18446744073709551615 254195330343 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/17801/statm: 4644 284 249 26 0 2626 0

[startup+0.0228431 s]
/proc/loadavg: 1.91 2.02 2.01 4/80 17801
/proc/meminfo: memFree=1796840/2055920 swapFree=4192812/4192956
[pid=17801] ppid=17799 vsize=13792 CPUtime=0
/proc/17801/stat : 17801 (java) S 17799 17801 16349 0 -1 0 930 0 1 0 0 0 0 0 18 0 2 0 22963113 14123008 685 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/17801/statm: 3448 685 349 9 0 1200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 13792

[startup+0.101844 s]
/proc/loadavg: 1.91 2.02 2.01 4/80 17801
/proc/meminfo: memFree=1796840/2055920 swapFree=4192812/4192956
[pid=17801] ppid=17799 vsize=804428 CPUtime=0.08
/proc/17801/stat : 17801 (java) S 17799 17801 16349 0 -1 0 2969 0 1 0 6 2 0 0 18 0 12 0 22963113 823734272 2712 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/17801/statm: 201107 2712 1077 9 0 198441 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 804428

[startup+0.30186 s]
/proc/loadavg: 1.91 2.02 2.01 4/80 17801
/proc/meminfo: memFree=1796840/2055920 swapFree=4192812/4192956
[pid=17801] ppid=17799 vsize=805628 CPUtime=0.27
/proc/17801/stat : 17801 (java) S 17799 17801 16349 0 -1 0 4294 0 1 0 24 3 0 0 18 0 12 0 22963113 824963072 4031 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/17801/statm: 201407 4031 1358 9 0 198734 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 805628

[startup+0.701888 s]
/proc/loadavg: 1.91 2.02 2.01 4/80 17801
/proc/meminfo: memFree=1796840/2055920 swapFree=4192812/4192956
[pid=17801] ppid=17799 vsize=807184 CPUtime=0.67
/proc/17801/stat : 17801 (java) S 17799 17801 16349 0 -1 0 5533 0 1 0 63 4 0 0 18 0 12 0 22963113 826556416 5024 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/17801/statm: 201796 5024 1389 9 0 199123 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 807184

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

Child status: 0
Real time (s): 0.783753
CPU time (s): 0.736887
CPU user time (s): 0.686895
CPU system time (s): 0.049992
CPU usage (%): 94.0203
Max. virtual memory (cumulated for all children) (KiB): 807184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.686895
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5600
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= 186
involuntary context switches= 174

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node34 at 2009-07-12 02:36:11
IDJOB=2073792
IDBENCH=56018
IDSOLVER=731
FILE ID=node34/2073792-1247358971
PBS_JOBID= 9506850
Free space on /tmp= 66292 MiB

SOLVER NAME= SAT4J CSP 2.1.1
BENCH NAME= CPAI08/csp/aim-50/normalized-aim-50-6-0-sat-4_ext.xml
COMMAND LINE= java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073792-1247358971/watcher-2073792-1247358971 -o /tmp/evaluation-result-2073792-1247358971/solver-2073792-1247358971 -C 1800 -W 2000 -M 900  java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2073792-1247358971.xml

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

MD5SUM BENCH= e7463865184f91144af9492a7dc22538
RANDOM SEED=1377385022

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:       1797320 kB
Buffers:         12504 kB
Cached:          94732 kB
SwapCached:          0 kB
Active:         183440 kB
Inactive:        26004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1797320 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1488 kB
Writeback:           0 kB
Mapped:         119984 kB
Slab:            34244 kB
Committed_AS:   898484 kB
PageTables:       1952 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= 66292 MiB
End job on node34 at 2009-07-12 02:36:12