Trace number 199080

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
CSPtoSAT+minisat 0.3UNSAT 68.7855 69.1153

General information on the benchmark

Nameknights/
knights-8-5.xml
MD5SUM4005f912b0d8a06982611eb54b99e9e7
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 benchmark0.079987
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables5
Number of constraints10
Maximum constraint arity2
Maximum domain size64
Number of constraints which are defined in extension0
Number of constraints which are defined in intension10
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c This is CSPtoSAT+minisat version 0.3
0.01	c (c) 2006 roussel@cril.univ-artois.fr
0.01	
0.01	c This solver internally uses a modified version of MiniSat2 version 061112
0.01	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.01	
0.01	c parsing...
0.01	c ...done
0.01	c #SATvar=952 #SATclauses=1885 #CSPpredicates=10
69.11	c SAT problem is solved
69.11	restarts              : 14
69.11	conflicts             : 51177          (744 /sec)
69.11	decisions             : 70899          (1.05 % random) (1031 /sec)
69.11	propagations          : 8296132        (120623 /sec)
69.11	conflict literals     : 1629583        (1.43 % deleted)
69.11	Memory used           : 8.00 MB
69.11	CPU time              : 68.7775 s
69.11	
69.11	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node18/watcher-199080-1168053657 -o ROOT/results/node18/solver-199080-1168053657 -C 1800 -M 900 /tmp/evaluation/199080-1168053657/CSPtoSAT+minisat /tmp/evaluation/199080-1168053657/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 1.66 1.96 4/86 16922
/proc/meminfo: memFree=1336024/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=6696 CPUtime=0
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 429 0 0 0 0 0 0 0 18 0 1 0 153760769 6856704 408 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 7830392 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 1674 409 369 52 0 30 0

[startup+0.104523 s]
/proc/loadavg: 0.92 1.66 1.96 4/86 16922
/proc/meminfo: memFree=1336024/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=7060 CPUtime=0.09
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 890 0 0 0 9 0 0 0 18 0 1 0 153760769 7229440 853 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134562819 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 1765 853 720 52 0 133 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7060

[startup+0.512561 s]
/proc/loadavg: 0.92 1.66 1.96 4/86 16922
/proc/meminfo: memFree=1336024/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=7060 CPUtime=0.5
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 911 0 0 0 50 0 0 0 22 0 1 0 153760769 7229440 874 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687415 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 1765 874 720 52 0 133 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7060

[startup+1.33364 s]
/proc/loadavg: 1.01 1.67 1.96 3/86 16922
/proc/meminfo: memFree=1335256/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=7208 CPUtime=1.32
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 935 0 0 0 132 0 0 0 25 0 1 0 153760769 7380992 898 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687588 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 1802 898 720 52 0 170 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 7208

[startup+2.9708 s]
/proc/loadavg: 1.01 1.67 1.96 3/86 16922
/proc/meminfo: memFree=1335128/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=7348 CPUtime=2.95
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 964 0 0 0 295 0 0 0 25 0 1 0 153760769 7524352 927 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687566 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 1837 927 720 52 0 205 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 7348

[startup+6.25711 s]
/proc/loadavg: 1.01 1.67 1.96 3/86 16922
/proc/meminfo: memFree=1334872/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=7480 CPUtime=6.21
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 997 0 0 0 621 0 0 0 25 0 1 0 153760769 7659520 960 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687408 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 1870 960 720 52 0 238 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 7480

[startup+12.7137 s]
/proc/loadavg: 1.16 1.68 1.96 3/86 16922
/proc/meminfo: memFree=1334680/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=7612 CPUtime=12.62
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 1048 0 0 0 1262 0 0 0 25 0 1 0 153760769 7794688 1011 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687590 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 1903 1011 720 52 0 271 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 7612

[startup+25.531 s]
/proc/loadavg: 1.29 1.69 1.96 3/86 16922
/proc/meminfo: memFree=1334424/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=7928 CPUtime=25.39
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 1114 0 0 0 2539 0 0 0 25 0 1 0 153760769 8118272 1077 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134671770 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 1982 1077 720 52 0 350 0
Current children cumulated CPU time (s) 25.39
Current children cumulated vsize (KiB) 7928

[startup+51.1634 s]
/proc/loadavg: 1.53 1.71 1.96 3/86 16922
/proc/meminfo: memFree=1334040/2055920 swapFree=4192812/4192956
[pid=16921] ppid=16919 vsize=8192 CPUtime=50.92
/proc/16921/stat : 16921 (CSPtoSAT+minisa) R 16919 16921 14103 0 -1 4194304 1171 0 0 0 5092 0 0 0 25 0 1 0 153760769 8388608 1134 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687441 0 0 4096 0 0 0 0 17 0 0 0
/proc/16921/statm: 2048 1134 720 52 0 416 0
Current children cumulated CPU time (s) 50.92
Current children cumulated vsize (KiB) 8192

Child status: 0
Real time (s): 69.1153
CPU time (s): 68.7855
CPU user time (s): 68.7785
CPU system time (s): 0.006998
CPU usage (%): 99.5229
Max. virtual memory (cumulated for all children) (KiB): 8192

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 68.7785
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1188
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 12
involuntary context switches= 1127

runsolver used 0.066989 s user time and 0.185971 s system time

The end

Launcher Data (download as text)

Begin job on node18 on Sat Jan  6 03:21:01 UTC 2007


IDJOB= 199080
IDBENCH= 3591
FILE ID= node18/199080-1168053657

PBS_JOBID= 3475282

Free space on /tmp= 66286 MiB

BENCH NAME= HOME/pub/bench/CPAI06/knights/knights-8-5.xml
COMMAND LINE= /tmp/evaluation/199080-1168053657/CSPtoSAT+minisat /tmp/evaluation/199080-1168053657/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-199080-1168053657 -o ROOT/results/node18/solver-199080-1168053657 -C 1800 -M 900  /tmp/evaluation/199080-1168053657/CSPtoSAT+minisat /tmp/evaluation/199080-1168053657/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  4005f912b0d8a06982611eb54b99e9e7

RANDOM SEED= 475766948

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		: 3000.231
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		: 3000.231
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:       1336440 kB
Buffers:         67756 kB
Cached:         492360 kB
SwapCached:          0 kB
Active:         389900 kB
Inactive:       232916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1336440 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1600 kB
Writeback:           0 kB
Mapped:          85204 kB
Slab:            81772 kB
Committed_AS:  3910460 kB
PageTables:       2036 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= 66286 MiB



End job on node18 on Sat Jan  6 03:22:10 UTC 2007