Trace number 237864

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, and are wall clock time (not CPU 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
sugar 0.40? 0.420935 0.476446

General information on the benchmark

Namehaystacks/
haystacks_04.xml
MD5SUMd27edd6530026bc4e9b6a215c658ef2b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.016997
SatisfiableNO
(Un)Satisfiability was proved
Number of variables16
Number of constraints27
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension27
Global constraints used (with number of constraints)

Solver Data (download as text)

0.04	c # Sugar v0-40 (/tmp/evaluation/237864-1170108579/sugar-v0-40.jar)
0.04	
0.04	c # MAIN  BEGIN : /tmp/evaluation/237864-1170108579/unknown.xml [Mon Jan 29 23:09:41 2007]
0.04	c # CONVERT_XML  BEGIN : /tmp/evaluation/237864-1170108579/unknown.xml /tmp/evaluation/237864-1170108579/sugar23763.csp [Mon Jan 29 23:09:41 2007]
0.04	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/237864-1170108579/sugar-v0-40.jar -convert /tmp/evaluation/237864-1170108579/unknown.xml /tmp/evaluation/237864-1170108579/sugar23763.csp
0.17	c BEGIN convert /tmp/evaluation/237864-1170108579/unknown.xml
0.28	c END convert (0.102442 seconds)
0.28	c # CONVERT_XML  END : /tmp/evaluation/237864-1170108579/sugar23763.csp 968 bytes (0 seconds) [Mon Jan 29 23:09:41 2007]
0.28	c # CONVERT_XML  CPU : 0.21 = 0 + 0 + 0.19 + 0.02
0.28	
0.28	c # GENERATE_SAT  BEGIN : /tmp/evaluation/237864-1170108579/sugar23763.bcnf [Mon Jan 29 23:09:41 2007]
0.28	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/237864-1170108579/sugar-v0-40.jar -bcnf -map /tmp/evaluation/237864-1170108579/sugar23763.map /tmp/evaluation/237864-1170108579/sugar23763.csp /tmp/evaluation/237864-1170108579/sugar23763.bcnf
0.41	c BEGIN parse /tmp/evaluation/237864-1170108579/sugar23763.csp
0.45	c jp.ac.kobe_u.cs.sugar.SugarException: mul(sub(V7, V14), sub(V14, V7)) is not coef linear expression
0.45	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:97)
0.45	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:77)
0.45	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:80)
0.45	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.(LinearExpression.java:56)
0.45	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parseLE(CSPParser.java:312)
0.45	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parseComparison(CSPParser.java:386)
0.45	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:469)
0.45	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:541)
0.45	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:568)
0.45	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:586)
0.45	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:600)
0.45	c 	at jp.ac.kobe_u.cs.sugar.Sugar.encode(Sugar.java:187)
0.45	c 	at jp.ac.kobe_u.cs.sugar.Sugar.execute(Sugar.java:435)
0.45	c 	at jp.ac.kobe_u.cs.sugar.Sugar.main(Sugar.java:451)
0.47	s UNKNOWN
0.47	c # ERROR /tmp/evaluation/237864-1170108579/sugar23763.bcnf is not generated, at /tmp/evaluation/237864-1170108579/sugar line 310.
0.47	
0.47	c # MAIN  END :  (0 seconds) [Mon Jan 29 23:09:41 2007]
0.47	c # MAIN  CPU : 0.36 = 0 + 0 + 0.32 + 0.04
0.47

Verifier Data (download as text)

ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: UNKNOWN

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node69/watcher-237864-1170108579 -o ROOT/results/node69/solver-237864-1170108579 -C 1800 -M 900 /tmp/evaluation/237864-1170108579/solver /tmp/evaluation/237864-1170108579 /tmp/evaluation/237864-1170108579/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 3.61 5.31 5.05 3/81 23764
/proc/meminfo: memFree=14992/2055920 swapFree=4192812/4192956
[pid=23763] ppid=23761 vsize=12128 CPUtime=0
/proc/23763/stat : 23763 (sugar) R 23761 23763 23635 0 -1 4194304 478 0 0 0 0 0 0 0 18 0 1 0 30815799 12419072 197 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 237956542706 0 0 4224 0 0 0 0 17 1 0 0
/proc/23763/statm: 3032 202 150 3 0 132 0

[startup+0.102138 s]
/proc/loadavg: 3.61 5.31 5.05 3/81 23764
/proc/meminfo: memFree=14992/2055920 swapFree=4192812/4192956
[pid=23763] ppid=23761 vsize=13724 CPUtime=0.03
/proc/23763/stat : 23763 (sugar) S 23761 23763 23635 0 -1 4194304 1112 0 0 0 3 0 0 0 18 0 1 0 30815799 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 237956542562 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23763/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

Child status: 1
Real time (s): 0.476446
CPU time (s): 0.420935
CPU user time (s): 0.369943
CPU system time (s): 0.050992
CPU usage (%): 88.349
Max. virtual memory (cumulated for all children) (KiB): 13724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.369943
system time used= 0.050992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7792
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 323
involuntary context switches= 203

runsolver used 0.004999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node69 on Mon Jan 29 22:09:40 UTC 2007


IDJOB= 237864
IDBENCH= 6967
IDSOLVER= 86
FILE ID= node69/237864-1170108579

PBS_JOBID= 3689948

Free space on /tmp= 61981 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_04.xml
COMMAND LINE= /tmp/evaluation/237864-1170108579/solver /tmp/evaluation/237864-1170108579 /tmp/evaluation/237864-1170108579/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node69/watcher-237864-1170108579 -o ROOT/results/node69/solver-237864-1170108579 -C 1800 -M 900  /tmp/evaluation/237864-1170108579/solver /tmp/evaluation/237864-1170108579 /tmp/evaluation/237864-1170108579/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  d27edd6530026bc4e9b6a215c658ef2b

RANDOM SEED= 434964046

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.261
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		: 3000.261
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:         16496 kB
Buffers:          7464 kB
Cached:        1863896 kB
SwapCached:          0 kB
Active:         105468 kB
Inactive:      1846920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:         16496 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:          473668 kB
Writeback:           0 kB
Mapped:          97776 kB
Slab:            72144 kB
Committed_AS:   621828 kB
PageTables:       2060 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= 61926 MiB



End job on node69 on Mon Jan 29 22:09:43 UTC 2007