Trace number 2073825

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 0.591909 0.631999

General information on the benchmark

Namecsp/aim-50/
normalized-aim-50-1-6-unsat-2_ext.xml
MD5SUM462d1324e82d7b5565d2a66e09d10406
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 benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of constraints77
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension77
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.08/0.13	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.
0.08/0.15	c version 2.1.1.v20090622
0.08/0.15	c sun.arch.data.model	32
0.08/0.15	c java.version	1.6.0_12
0.08/0.15	c os.name	Linux
0.08/0.15	c os.version	2.6.9-22.EL.rootsmp
0.08/0.15	c os.arch	i386
0.08/0.15	c Free memory 671000808
0.08/0.15	c Max memory 672137216
0.08/0.15	c Total memory 672137216
0.08/0.15	c Number of processors 2
0.19/0.24	c c --- Begin Solver configuration ---
0.19/0.24	c Stops conflict analysis at the first Unique Implication Point
0.19/0.24	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@1f14ceb
0.19/0.24	c Learn all clauses as in MiniSAT
0.19/0.24	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.19/0.24	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause
0.19/0.24	c Expensive reason simplification
0.19/0.24	c MiniSAT restarts strategy
0.19/0.24	c Memory based learned constraints deletion strategy
0.19/0.24	c timeout=2147483s
0.19/0.24	c DB Simplification allowed=false
0.19/0.24	c --- End Solver configuration ---
0.19/0.24	c solving HOME/instance-2073825-1247358983.xml
0.19/0.24	c reading problem ... 
0.48/0.50	c reading problem named null
0.48/0.50	c reading domains done.
0.48/0.50	c reading variables done.
0.48/0.52	c reading relations done.
0.48/0.53	c reading constraints
0.48/0.58	c done with constraints.
0.48/0.58	c ... done. Wall clock time 0.335s.
0.48/0.58	c #vars     100
0.48/0.58	c #constraints  180
0.48/0.58	c constraints type 
0.48/0.58	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 80
0.48/0.58	c org.sat4j.minisat.constraints.card.AtLeast => 50
0.48/0.58	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 50
0.48/0.59	c starts		: 1
0.48/0.59	c conflicts		: 17
0.48/0.59	c decisions		: 72
0.48/0.59	c propagations		: 375
0.48/0.59	c inspects		: 707
0.48/0.59	c learnt literals	: 2
0.48/0.59	c learnt binary clauses	: 9
0.48/0.59	c learnt ternary clauses	: 5
0.48/0.59	c learnt clauses	: 14
0.48/0.59	c ignored clauses	: 0
0.48/0.59	c root simplifications	: 0
0.48/0.59	c removed literals (reason simplification)	: 1
0.48/0.59	c reason swapping (by a shorter reason)	: 0
0.48/0.59	c Calls to reduceDB	: 0
0.48/0.59	c speed (assignments/second)	: 22058.823529411762
0.48/0.59	c non guided choices	35
0.48/0.60	c learnt constraints type 
0.48/0.60	c org.sat4j.minisat.constraints.cnf.LearntBinaryClause => 9
0.48/0.60	c org.sat4j.minisat.constraints.cnf.LearntWLClause => 5
0.48/0.60	c constraints type 
0.48/0.60	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 80
0.48/0.60	c org.sat4j.minisat.constraints.card.AtLeast => 50
0.48/0.60	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 50
0.48/0.60	s UNSATISFIABLE
0.58/0.60	c Total wall clock time (in seconds) : 0.352

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-2073825-1247358983/watcher-2073825-1247358983 -o /tmp/evaluation-result-2073825-1247358983/solver-2073825-1247358983 -C 1800 -W 2000 -M 900 java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2073825-1247358983.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

[startup+0 s]
/proc/loadavg: 1.97 2.02 2.00 4/76 19194
/proc/meminfo: memFree=1824712/2055920 swapFree=4192812/4192956
[pid=19194] ppid=19192 vsize=18576 CPUtime=0
/proc/19194/stat : 19194 (runsolver) R 19192 17296 17296 0 -1 4194368 6 0 0 0 0 0 0 0 19 0 1 0 22965929 19021824 282 996147200 4194304 4302564 548682068448 18446744073709551615 233632754618 0 0 4096 24578 0 0 0 17 1 0 0
/proc/19194/statm: 4644 282 247 26 0 2626 0
Current StackSize limit: 10240 KiB


[startup+0.0891939 s]
/proc/loadavg: 1.97 2.02 2.00 4/76 19194
/proc/meminfo: memFree=1824712/2055920 swapFree=4192812/4192956
[pid=19194] ppid=19192 vsize=802164 CPUtime=0.07
/proc/19194/stat : 19194 (java) S 19192 19194 17296 0 -1 0 2883 0 1 0 5 2 0 0 18 0 7 0 22965929 821415936 2628 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 1 0 0
/proc/19194/statm: 200541 2628 1040 9 0 197892 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 802164

[startup+0.102196 s]
/proc/loadavg: 1.97 2.02 2.00 4/76 19194
/proc/meminfo: memFree=1824712/2055920 swapFree=4192812/4192956
[pid=19194] ppid=19192 vsize=804560 CPUtime=0.08
/proc/19194/stat : 19194 (java) S 19192 19194 17296 0 -1 0 3016 0 1 0 6 2 0 0 18 0 12 0 22965929 823869440 2759 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/19194/statm: 201140 2759 1082 9 0 198474 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 804560

[startup+0.302231 s]
/proc/loadavg: 1.97 2.02 2.00 4/76 19194
/proc/meminfo: memFree=1824712/2055920 swapFree=4192812/4192956
[pid=19194] ppid=19192 vsize=805628 CPUtime=0.29
/proc/19194/stat : 19194 (java) S 19192 19194 17296 0 -1 0 4308 0 1 0 25 4 0 0 18 0 12 0 22965929 824963072 4045 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/19194/statm: 201407 4045 1359 9 0 198734 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 805628

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

[startup+0.501263 s]
/proc/loadavg: 1.97 2.02 2.00 4/76 19194
/proc/meminfo: memFree=1824712/2055920 swapFree=4192812/4192956
[pid=19194] ppid=19192 vsize=807248 CPUtime=0.48
/proc/19194/stat : 19194 (java) S 19192 19194 17296 0 -1 0 5322 0 1 0 43 5 0 0 18 0 12 0 22965929 826621952 4818 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/19194/statm: 201812 4818 1384 9 0 199139 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 807248

[startup+0.601275 s]
/proc/loadavg: 1.97 2.02 2.00 4/76 19194
/proc/meminfo: memFree=1824712/2055920 swapFree=4192812/4192956
[pid=19194] ppid=19192 vsize=807832 CPUtime=0.58
/proc/19194/stat : 19194 (java) S 19192 19194 17296 0 -1 0 5483 0 1 0 53 5 0 0 18 0 13 0 22965929 827219968 4974 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/19194/statm: 201958 4974 1385 9 0 199285 0
Current children cumulated CPU time (s) 0.58
Current children cumulated vsize (KiB) 807832

Child status: 0
Real time (s): 0.631999
CPU time (s): 0.591909
CPU user time (s): 0.533918
CPU system time (s): 0.057991
CPU usage (%): 93.6566
Max. virtual memory (cumulated for all children) (KiB): 807832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.533918
system time used= 0.057991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5489
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= 122
involuntary context switches= 151

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node3 at 2009-07-12 02:36:24
IDJOB=2073825
IDBENCH=56021
IDSOLVER=731
FILE ID=node3/2073825-1247358983
PBS_JOBID= 9506907
Free space on /tmp= 66376 MiB

SOLVER NAME= SAT4J CSP 2.1.1
BENCH NAME= CPAI08/csp/aim-50/normalized-aim-50-1-6-unsat-2_ext.xml
COMMAND LINE= java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073825-1247358983/watcher-2073825-1247358983 -o /tmp/evaluation-result-2073825-1247358983/solver-2073825-1247358983 -C 1800 -W 2000 -M 900  java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2073825-1247358983.xml

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

MD5SUM BENCH= 462d1324e82d7b5565d2a66e09d10406
RANDOM SEED=1113445078

node3.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		: 3000.259
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		: 3000.259
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:       1825128 kB
Buffers:         32832 kB
Cached:          97932 kB
SwapCached:          0 kB
Active:         136280 kB
Inactive:        44336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1825128 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1764 kB
Writeback:           0 kB
Mapped:          60504 kB
Slab:            35440 kB
Committed_AS:   277688 kB
PageTables:       1796 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= 66376 MiB
End job on node3 at 2009-07-12 02:36:24