Trace number 1038656

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 2008-06-13UNSAT 0.719889 0.762425

General information on the benchmark

Namecsp/coloring/
normalized-geom-40-4-ext.xml
MD5SUM0756896c8a80417c07a95efe8858fb66
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.007997
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints78
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension78
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.19/0.29	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.19/0.29	c This is free software under the dual EPL/GNU LGPL licenses.
0.19/0.29	c See www.sat4j.org for details.
0.19/0.29	c That software uses the Rhino library from the Mozilla project.
0.28/0.33	c version 9.9.9.token
0.28/0.33	c sun.arch.data.model	32
0.28/0.33	c java.version	1.6.0_06
0.28/0.33	c os.name	Linux
0.28/0.33	c os.version	2.6.9-22.EL.rootsmp
0.28/0.33	c os.arch	i386
0.28/0.33	c Free memory 669864272
0.28/0.33	c Max memory 672137216
0.28/0.33	c Total memory 672137216
0.28/0.33	c Number of processors 2
0.28/0.38	c c --- Begin Solver configuration ---
0.28/0.38	c Stops conflict analysis at the first Unique Implication Point
0.28/0.38	c org.sat4j.minisat.constraints.MixedDataStructureDaniel@1d2068d
0.28/0.38	c Learn all clauses as in MiniSAT
0.28/0.38	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.28/0.38	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause
0.28/0.38	c Expensive reason simplification
0.28/0.38	c MiniSAT restarts strategy
0.28/0.38	c timeout=2147483s
0.28/0.38	c DB Simplification allowed=false
0.28/0.38	c --- End Solver configuration ---
0.28/0.38	c solving HOME/instance-1038656-1214965707.xml
0.28/0.38	c reading problem ... 
0.58/0.61	c reading problem named null
0.58/0.61	c reading domains done.
0.58/0.61	c reading variables done.
0.58/0.64	c reading relations done.
0.58/0.65	c reading constraints
0.58/0.68	c done with constraints.
0.68/0.70	c ... done. Wall clock time 0.325s.
0.68/0.70	c #vars     160
0.68/0.70	c #constraints  392
0.68/0.70	c constraints type 
0.68/0.70	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 352
0.68/0.70	c org.sat4j.minisat.constraints.card.AtLeast => 40
0.68/0.72	c starts		: 1
0.68/0.72	c conflicts		: 28
0.68/0.72	c decisions		: 44
0.68/0.72	c propagations		: 336
0.68/0.72	c inspects		: 847
0.68/0.72	c learnt literals	: 3
0.68/0.72	c learnt binary clauses	: 2
0.68/0.72	c learnt ternary clauses	: 2
0.68/0.72	c learnt clauses	: 24
0.68/0.72	c ignored clauses	: 0
0.68/0.72	c root simplifications	: 0
0.68/0.72	c removed literals (reason simplification)	: 2
0.68/0.72	c reason swapping (by a shorter reason)	: 0
0.68/0.72	c Calls to reduceDB	: 0
0.68/0.72	c speed (assignments/second)	: 22400.0
0.68/0.72	c non guided choices	17
0.68/0.72	s UNSATISFIABLE
0.68/0.72	c Total wall clock time (in seconds) : 0.342

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1038656-1214965707/watcher-1038656-1214965707 -o /tmp/evaluation-result-1038656-1214965707/solver-1038656-1214965707 -C 1800 -W 2200 -M 900 --output-limit 1,15 java6 -server -Xms650m -Xmx650m -jar HOME/sat4jcsp.jar HOME/instance-1038656-1214965707.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): 2200 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
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: 2.01 2.01 2.00 4/72 5000
/proc/meminfo: memFree=1565056/2055920 swapFree=4179760/4192956
[pid=5000] ppid=4998 vsize=152 CPUtime=0
/proc/5000/stat : 5000 (java) R 4998 5000 2313 0 -1 0 211 0 0 0 0 0 0 0 18 0 1 0 1975543970 155648 26 996147200 134512640 134550740 4294956032 18446744073709551615 3167012 0 0 4096 0 0 0 0 17 0 0 0
/proc/5000/statm: 38 26 19 9 0 4 0

[startup+0.0105171 s]
/proc/loadavg: 2.01 2.01 2.00 4/72 5000
/proc/meminfo: memFree=1565056/2055920 swapFree=4179760/4192956
[pid=5000] ppid=4998 vsize=13292 CPUtime=0
/proc/5000/stat : 5000 (java) S 4998 5000 2313 0 -1 0 768 0 0 0 0 0 0 0 18 0 2 0 1975543970 13611008 559 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 0 0 0
/proc/5000/statm: 3323 559 234 9 0 1233 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 13292

[startup+0.101525 s]
/proc/loadavg: 2.01 2.01 2.00 4/72 5000
/proc/meminfo: memFree=1565056/2055920 swapFree=4179760/4192956
[pid=5000] ppid=4998 vsize=804756 CPUtime=0.08
/proc/5000/stat : 5000 (java) S 4998 5000 2313 0 -1 0 3220 0 1 0 7 1 0 0 18 0 12 0 1975543970 824070144 2951 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/5000/statm: 201189 2951 1215 9 0 198558 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 804756

[startup+0.301547 s]
/proc/loadavg: 2.01 2.01 2.00 4/72 5000
/proc/meminfo: memFree=1565056/2055920 swapFree=4179760/4192956
[pid=5000] ppid=4998 vsize=808148 CPUtime=0.28
/proc/5000/stat : 5000 (java) S 4998 5000 2313 0 -1 0 5004 0 1 0 25 3 0 0 18 0 12 0 1975543970 827543552 4324 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/5000/statm: 202037 4324 1308 9 0 199406 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 808148

[startup+0.70159 s]
/proc/loadavg: 2.01 2.01 2.00 4/72 5000
/proc/meminfo: memFree=1565056/2055920 swapFree=4179760/4192956
[pid=5000] ppid=4998 vsize=808276 CPUtime=0.68
/proc/5000/stat : 5000 (java) S 4998 5000 2313 0 -1 0 6216 0 1 0 64 4 0 0 18 0 12 0 1975543970 827674624 5531 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/5000/statm: 202069 5531 1335 9 0 199431 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 808276

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

Child status: 0
Real time (s): 0.762425
CPU time (s): 0.719889
CPU user time (s): 0.666898
CPU system time (s): 0.052991
CPU usage (%): 94.4209
Max. virtual memory (cumulated for all children) (KiB): 809336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.666898
system time used= 0.052991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6265
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= 133
involuntary context switches= 141

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node37 at 2008-07-02 04:28:27
IDJOB=1038656
IDBENCH=53576
IDSOLVER=344
FILE ID=node37/1038656-1214965707
PBS_JOBID= 7870259
Free space on /tmp= 66548 MiB

SOLVER NAME= SAT4J CSP 2008-06-13
BENCH NAME= CPAI08/csp/coloring/normalized-geom-40-4-ext.xml
COMMAND LINE= java6 -server -Xms650m -Xmx650m -jar HOME/sat4jcsp.jar BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1038656-1214965707/watcher-1038656-1214965707 -o /tmp/evaluation-result-1038656-1214965707/solver-1038656-1214965707 -C 1800 -W 2200 -M 900 --output-limit 1,15  java6 -server -Xms650m -Xmx650m -jar HOME/sat4jcsp.jar HOME/instance-1038656-1214965707.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 0756896c8a80417c07a95efe8858fb66
RANDOM SEED=572324096

node37.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		: 3000.236
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		: 3000.236
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:       1565536 kB
Buffers:         59000 kB
Cached:         344872 kB
SwapCached:       7460 kB
Active:         107388 kB
Inactive:       311932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1565536 kB
SwapTotal:     4192956 kB
SwapFree:      4179760 kB
Dirty:            1400 kB
Writeback:           0 kB
Mapped:          22432 kB
Slab:            56424 kB
Committed_AS:  3335468 kB
PageTables:       1744 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66544 MiB
End job on node37 at 2008-07-02 04:28:28