Trace number 219004

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 0.40SAT 0.92 1.44095

General information on the benchmark

NamechessboardColoration/
cc-6-6-3.xml
MD5SUMf0eb4bbce4d0e24d3908b998a1ae22dc
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables36
Number of constraints225
Maximum constraint arity4
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension225
Global constraints used (with number of constraints)

Solver Data (download as text)

0.04	c # Sugar v0-40 (/tmp/evaluation/219004-1170102367/sugar-v0-40.jar)
0.04	
0.04	c # MAIN  BEGIN : /tmp/evaluation/219004-1170102367/unknown.xml [Mon Jan 29 21:26:08 2007]
0.04	c # CONVERT_XML  BEGIN : /tmp/evaluation/219004-1170102367/unknown.xml /tmp/evaluation/219004-1170102367/sugar21912.csp [Mon Jan 29 21:26:08 2007]
0.04	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/219004-1170102367/sugar-v0-40.jar -convert /tmp/evaluation/219004-1170102367/unknown.xml /tmp/evaluation/219004-1170102367/sugar21912.csp
0.24	c BEGIN convert /tmp/evaluation/219004-1170102367/unknown.xml
0.48	c END convert (0.238776 seconds)
0.51	c # CONVERT_XML  END : /tmp/evaluation/219004-1170102367/sugar21912.csp 23216 bytes (0 seconds) [Mon Jan 29 21:26:08 2007]
0.51	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.51	
0.51	c # GENERATE_SAT  BEGIN : /tmp/evaluation/219004-1170102367/sugar21912.bcnf [Mon Jan 29 21:26:08 2007]
0.51	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/219004-1170102367/sugar-v0-40.jar -bcnf -map /tmp/evaluation/219004-1170102367/sugar21912.map /tmp/evaluation/219004-1170102367/sugar21912.csp /tmp/evaluation/219004-1170102367/sugar21912.bcnf
0.63	c BEGIN parse /tmp/evaluation/219004-1170102367/sugar21912.csp
0.96	c END parse (0.324758 seconds)
0.96	c BEGIN simplify
0.98	c END simplify (0.026626 seconds)
0.98	c BEGIN encode /tmp/evaluation/219004-1170102367/sugar21912.bcnf
1.06	c END encode (0.075385 seconds)
1.13	c # GENERATE_SAT  END : 2772 variables 8361 clauses 120156 bytes (1 seconds) [Mon Jan 29 21:26:09 2007]
1.13	c # GENERATE_SAT  CPU : 0.55 = 0.02 + 0 + 0.47 + 0.06
1.14	
1.14	c # SOLVE_SAT  BEGIN : /tmp/evaluation/219004-1170102367/sugar21912.bcnf [Mon Jan 29 21:26:09 2007]
1.14	c # CMD : /tmp/evaluation/219004-1170102367/minisat /tmp/evaluation/219004-1170102367/sugar21912.bcnf /tmp/evaluation/219004-1170102367/sugar21912.out
1.14	c ==================================[MINISAT]===================================
1.14	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.14	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.14	c ==============================================================================
1.14	c |         0 |    8361    21672 |    2787       0        0     nan |  0.000 % |
1.14	c ==============================================================================
1.14	c restarts              : 1
1.14	c conflicts             : 2              (400 /sec)
1.14	c decisions             : 1455           (291058 /sec)
1.14	c propagations          : 3783           (756751 /sec)
1.14	c conflict literals     : 20             (0.00 % deleted)
1.14	c Memory used           : 2.01 MB
1.14	c CPU time              : 0.004999 s
1.14	c 
1.14	c SATISFIABLE
1.14	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 21:26:09 2007]
1.14	c # SOLVE_SAT  CPU : 0 = 0 + 0 + 0 + 0
1.14	
1.14	c # RESULT : SATISFIABLE
1.14	
1.14	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 21:26:09 2007]
1.26	c BEGIN read SAT output /tmp/evaluation/219004-1170102367/sugar21912.out
1.29	c END read SAT output (0.03123 seconds)
1.29	c BEGIN write solution /tmp/evaluation/219004-1170102367/sugar21912.sol
1.42	c END write solution (0.123846 seconds)
1.43	s SATISFIABLE
1.44	v 1 0 1 2 2 0 0 0 0 1 1 2 2 0 1 1 0 2 1 0 2 2 1 2 1 2 0 1 2 0 2 1 0 0 2 1
1.44	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 21:26:09 2007]
1.44	c # OUTPUT_SOL  CPU : 0.28 = 0 + 0 + 0.25 + 0.03
1.44	
1.44	c # MAIN  END :  (1 seconds) [Mon Jan 29 21:26:09 2007]
1.44	c # MAIN  CPU : 0.83 = 0.02 + 0 + 0.72 + 0.09
1.44

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node20/watcher-219004-1170102367 -o ROOT/results/node20/solver-219004-1170102367 -C 1800 -M 900 /tmp/evaluation/219004-1170102367/solver /tmp/evaluation/219004-1170102367 /tmp/evaluation/219004-1170102367/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: 0.92 0.98 1.08 4/81 21913
/proc/meminfo: memFree=1866256/2055920 swapFree=4192812/4192956
[pid=21912] ppid=21910 vsize=2504 CPUtime=0
/proc/21912/stat : 21912 (sugar) R 21910 21912 21826 0 -1 4194304 290 0 0 0 0 0 0 0 19 0 1 0 30190741 2564096 26 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 273949980041 0 0 4096 0 0 0 0 17 1 0 0
/proc/21912/statm: 626 26 19 3 0 5 0

[startup+0.107231 s]
/proc/loadavg: 0.92 0.98 1.08 4/81 21913
/proc/meminfo: memFree=1866256/2055920 swapFree=4192812/4192956
[pid=21912] ppid=21910 vsize=13724 CPUtime=0.04
/proc/21912/stat : 21912 (sugar) S 21910 21912 21826 0 -1 4194304 1112 0 0 0 4 0 0 0 16 0 1 0 30190741 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 273961496674 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/21912/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.518292 s]
/proc/loadavg: 0.92 0.98 1.08 4/81 21913
/proc/meminfo: memFree=1866256/2055920 swapFree=4192812/4192956
[pid=21912] ppid=21910 vsize=13724 CPUtime=0.04
/proc/21912/stat : 21912 (sugar) S 21910 21912 21826 0 -1 4194304 1178 0 0 0 4 0 0 0 17 0 1 0 30190741 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 273961496674 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/21912/statm: 3431 808 370 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+1.33938 s]
/proc/loadavg: 0.92 0.98 1.08 4/95 21972
/proc/meminfo: memFree=1849560/2055920 swapFree=4192812/4192956
[pid=21912] ppid=21910 vsize=15256 CPUtime=0.59
/proc/21912/stat : 21912 (sugar) S 21910 21912 21826 0 -1 4194304 1736 6445 0 1 6 0 47 6 16 0 1 0 30190741 15622144 1181 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 273961496674 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/21912/statm: 3814 1181 373 3 0 914 0
[pid=21914] ppid=21912 vsize=0 CPUtime=0.33
/proc/21914/stat : 21914 (java) Z 21912 21912 21826 0 -1 1036 3953 0 1 0 31 2 0 0 16 0 1 0 30190746 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/21914/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.92
Current children cumulated vsize (KiB) 15256

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 21912 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=795879 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=97985
CPU time returned by wait4() is 0.893864
while last known CPU time is 0.92

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 1.44095
CPU time (s): 0.92
CPU user time (s): 0.84
CPU system time (s): 0.08
CPU usage (%): 63.8468
Max. virtual memory (cumulated for all children) (KiB): 15256

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.795879
system time used= 0.097985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11959
page faults= 3
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 909
involuntary context switches= 673

runsolver used 0.002999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node20 on Mon Jan 29 20:26:08 UTC 2007


IDJOB= 219004
IDBENCH= 5272
IDSOLVER= 86
FILE ID= node20/219004-1170102367

PBS_JOBID= 3689763

Free space on /tmp= 66564 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-6-6-3.xml
COMMAND LINE= /tmp/evaluation/219004-1170102367/solver /tmp/evaluation/219004-1170102367 /tmp/evaluation/219004-1170102367/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-219004-1170102367 -o ROOT/results/node20/solver-219004-1170102367 -C 1800 -M 900  /tmp/evaluation/219004-1170102367/solver /tmp/evaluation/219004-1170102367 /tmp/evaluation/219004-1170102367/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  f0eb4bbce4d0e24d3908b998a1ae22dc

RANDOM SEED= 781711535

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		: 3000.234
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		: 3000.234
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:       1866736 kB
Buffers:         34240 kB
Cached:          46816 kB
SwapCached:          0 kB
Active:         100244 kB
Inactive:        43668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1866736 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1008 kB
Writeback:           0 kB
Mapped:          81808 kB
Slab:            30572 kB
Committed_AS:   262248 kB
PageTables:       1888 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= 66561 MiB



End job on node20 on Mon Jan 29 20:26:09 UTC 2007