Trace number 2063419

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 0.972851 1.0268

General information on the benchmark

Namecsp/pret/
normalized-pret-60-25_ext.xml
MD5SUMb9314d7ad9005a0355a4e401b24bfd41
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 benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of constraints40
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension40
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.09/0.12	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.09/0.12	c This is free software under the dual EPL/GNU LGPL licenses.
0.09/0.12	c See www.sat4j.org for details.
0.09/0.12	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
0.19/0.22	c c --- Begin Solver configuration ---
0.19/0.22	c Stops conflict analysis at the first Unique Implication Point
0.19/0.22	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@1f14ceb
0.19/0.22	c Learn all clauses as in MiniSAT
0.19/0.22	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.19/0.22	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause
0.19/0.22	c Expensive reason simplification
0.19/0.22	c MiniSAT restarts strategy
0.19/0.22	c Memory based learned constraints deletion strategy
0.19/0.22	c timeout=2147483s
0.19/0.22	c DB Simplification allowed=false
0.19/0.22	c --- End Solver configuration ---
0.19/0.22	c solving HOME/instance-2063419-1247331934.xml
0.19/0.22	c reading problem ... 
0.38/0.44	c reading problem named null
0.38/0.44	c reading domains done.
0.38/0.44	c reading variables done.
0.38/0.46	c reading relations done.
0.38/0.48	c reading constraints
0.49/0.50	c done with constraints.
0.49/0.52	c ... done. Wall clock time 0.301s.
0.49/0.52	c #vars     120
0.49/0.52	c #constraints  280
0.49/0.52	c constraints type 
0.49/0.52	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 160
0.49/0.52	c org.sat4j.minisat.constraints.card.AtLeast => 60
0.49/0.52	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 60
0.89/0.96	c starts		: 4
0.89/0.96	c conflicts		: 547
0.89/0.96	c decisions		: 717
0.89/0.96	c propagations		: 13600
0.89/0.96	c inspects		: 54226
0.89/0.96	c learnt literals	: 5
0.89/0.96	c learnt binary clauses	: 8
0.89/0.96	c learnt ternary clauses	: 45
0.89/0.96	c learnt clauses	: 541
0.89/0.96	c ignored clauses	: 0
0.89/0.96	c root simplifications	: 0
0.89/0.96	c removed literals (reason simplification)	: 479
0.89/0.96	c reason swapping (by a shorter reason)	: 0
0.89/0.96	c Calls to reduceDB	: 0
0.89/0.96	c speed (assignments/second)	: 30979.498861047836
0.89/0.96	c non guided choices	25
0.89/0.97	c learnt constraints type 
0.89/0.97	c org.sat4j.minisat.constraints.cnf.LearntBinaryClause => 8
0.89/0.97	c org.sat4j.minisat.constraints.cnf.LearntWLClause => 533
0.89/0.97	c constraints type 
0.89/0.97	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 160
0.89/0.97	c org.sat4j.minisat.constraints.card.AtLeast => 60
0.89/0.97	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 60
0.89/0.97	s UNSATISFIABLE
0.89/0.97	c Total wall clock time (in seconds) : 0.741

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-2063419-1247331934/watcher-2063419-1247331934 -o /tmp/evaluation-result-2063419-1247331934/solver-2063419-1247331934 -C 1800 -W 2000 -M 900 java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2063419-1247331934.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: 1.98 1.73 1.40 4/73 15057
/proc/meminfo: memFree=1113504/2055920 swapFree=4192812/4192956
[pid=15057] ppid=15055 vsize=152 CPUtime=0
/proc/15057/stat : 15057 (java) R 15055 15057 12104 0 -1 0 204 0 0 0 0 0 0 0 18 0 1 0 20257474 155648 26 996147200 134512640 134550932 4294956016 18446744073709551615 8606500 0 0 4096 0 0 0 0 17 0 0 0
/proc/15057/statm: 38 26 19 9 0 4 0

[startup+0.101184 s]
/proc/loadavg: 1.98 1.73 1.40 4/73 15057
/proc/meminfo: memFree=1113504/2055920 swapFree=4192812/4192956
[pid=15057] ppid=15055 vsize=804560 CPUtime=0.09
/proc/15057/stat : 15057 (java) S 15055 15057 12104 0 -1 0 3076 0 1 0 7 2 0 0 18 0 12 0 20257474 823869440 2819 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/15057/statm: 201140 2819 1083 9 0 198474 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 804560

[startup+0.202196 s]
/proc/loadavg: 1.98 1.73 1.40 4/73 15057
/proc/meminfo: memFree=1113504/2055920 swapFree=4192812/4192956
[pid=15057] ppid=15055 vsize=805804 CPUtime=0.19
/proc/15057/stat : 15057 (java) S 15055 15057 12104 0 -1 0 3956 0 1 0 16 3 0 0 18 0 12 0 20257474 825143296 3694 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/15057/statm: 201451 3694 1342 9 0 198785 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 805804

[startup+0.302206 s]
/proc/loadavg: 1.98 1.73 1.40 4/73 15057
/proc/meminfo: memFree=1113504/2055920 swapFree=4192812/4192956
[pid=15057] ppid=15055 vsize=805992 CPUtime=0.29
/proc/15057/stat : 15057 (java) S 15055 15057 12104 0 -1 0 4453 0 1 0 25 4 0 0 18 0 12 0 20257474 825335808 4157 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/15057/statm: 201498 4157 1365 9 0 198825 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 805992

[startup+0.702251 s]
/proc/loadavg: 1.98 1.73 1.40 4/73 15057
/proc/meminfo: memFree=1113504/2055920 swapFree=4192812/4192956
[pid=15057] ppid=15055 vsize=808528 CPUtime=0.68
/proc/15057/stat : 15057 (java) S 15055 15057 12104 0 -1 0 6073 0 1 0 63 5 0 0 18 0 13 0 20257474 827932672 5236 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/15057/statm: 202132 5236 1405 9 0 199459 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 808528

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

[startup+0.80226 s]
/proc/loadavg: 1.98 1.73 1.40 4/73 15057
/proc/meminfo: memFree=1113504/2055920 swapFree=4192812/4192956
[pid=15057] ppid=15055 vsize=808528 CPUtime=0.78
/proc/15057/stat : 15057 (java) S 15055 15057 12104 0 -1 0 6093 0 1 0 73 5 0 0 18 0 13 0 20257474 827932672 5256 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/15057/statm: 202132 5256 1411 9 0 199459 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 808528

[startup+1.00229 s]
/proc/loadavg: 1.98 1.73 1.40 4/73 15057
/proc/meminfo: memFree=1113504/2055920 swapFree=4192812/4192956
[pid=15057] ppid=15055 vsize=808528 CPUtime=0.96
/proc/15057/stat : 15057 (java) S 15055 15057 12104 0 -1 0 6143 0 1 0 90 6 0 0 18 0 12 0 20257474 827932672 5305 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/15057/statm: 202132 5305 1420 9 0 199459 0
Current children cumulated CPU time (s) 0.96
Current children cumulated vsize (KiB) 808528

Child status: 0
Real time (s): 1.0268
CPU time (s): 0.972851
CPU user time (s): 0.906862
CPU system time (s): 0.065989
CPU usage (%): 94.7459
Max. virtual memory (cumulated for all children) (KiB): 808528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.906862
system time used= 0.065989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6146
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= 274
involuntary context switches= 300

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node38 at 2009-07-11 19:05:34
IDJOB=2063419
IDBENCH=54014
IDSOLVER=731
FILE ID=node38/2063419-1247331934
PBS_JOBID= 9506552
Free space on /tmp= 66400 MiB

SOLVER NAME= SAT4J CSP 2.1.1
BENCH NAME= CPAI08/csp/pret/normalized-pret-60-25_ext.xml
COMMAND LINE= java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2063419-1247331934/watcher-2063419-1247331934 -o /tmp/evaluation-result-2063419-1247331934/solver-2063419-1247331934 -C 1800 -W 2000 -M 900  java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2063419-1247331934.xml

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

MD5SUM BENCH= b9314d7ad9005a0355a4e401b24bfd41
RANDOM SEED=1443070908

node38.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		: 3000.229
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		: 3000.229
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:       1113984 kB
Buffers:         54904 kB
Cached:         815492 kB
SwapCached:        140 kB
Active:         130124 kB
Inactive:       759332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1113984 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2960 kB
Writeback:           0 kB
Mapped:          29576 kB
Slab:            37868 kB
Committed_AS:   218016 kB
PageTables:       1828 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= 66396 MiB
End job on node38 at 2009-07-11 19:05:35