Trace number 2074329

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
Mistral 1.545UNSAT 4.40033 4.44618

DiagnosticValue
ASSIGNMENTS1940
CHECKS2410020
NODES1940

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-15-15-2.xml
MD5SUMd253e49a50bf50fec79c621cae233451
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.40033
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints11025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension11025
Global constraints used (with number of constraints)

Solver Data 

0.00/0.21	c mistral version 1.545
4.25/4.38	s UNSATISFIABLE
4.25/4.38	d CHECKS 2410021
4.25/4.38	d ASSIGNMENTS 1940
4.25/4.38	d NODES 1940 BACKTRACKS 1920 FAILURES 1921 RUNTIME 3.63 TOTALTIME 4.34 NODES/s 534.435 CHECKS/s 663918

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-2074329-1247359162/watcher-2074329-1247359162 -o /tmp/evaluation-result-2074329-1247359162/solver-2074329-1247359162 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074329-1247359162.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: 1.28 1.66 1.86 3/82 20903
/proc/meminfo: memFree=1804240/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=18576 CPUtime=0
/proc/20903/stat : 20903 (runsolver) R 20901 20903 18209 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 22980819 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 255372881191 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/20903/statm: 4644 284 249 26 0 2626 0

[startup+0.21183 s]
/proc/loadavg: 1.28 1.66 1.86 3/82 20903
/proc/meminfo: memFree=1804240/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=6112 CPUtime=0.19
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 753 0 0 0 19 0 0 0 19 0 1 0 22980819 6258688 732 996147200 1448431616 1448550632 4294956208 18446744073709551615 134705827 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 1528 732 373 29 0 343 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 6112

[startup+0.302723 s]
/proc/loadavg: 1.28 1.66 1.86 3/82 20903
/proc/meminfo: memFree=1804240/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=6628 CPUtime=0.28
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 866 0 0 0 28 0 0 0 19 0 1 0 22980819 6787072 845 996147200 1448431616 1448550632 4294956208 18446744073709551615 134688896 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 1657 845 373 29 0 472 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6628

[startup+0.401733 s]
/proc/loadavg: 1.28 1.66 1.86 3/82 20903
/proc/meminfo: memFree=1804240/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=7280 CPUtime=0.38
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 1020 0 0 0 38 0 0 0 20 0 1 0 22980819 7454720 999 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157378837 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 1820 999 373 29 0 635 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 7280

[startup+0.701775 s]
/proc/loadavg: 1.28 1.66 1.86 3/82 20903
/proc/meminfo: memFree=1804240/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=13748 CPUtime=0.68
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 2650 0 0 0 67 1 0 0 23 0 1 0 22980819 14077952 2629 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157378664 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 3437 2629 383 29 0 2252 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 13748

[startup+1.50286 s]
/proc/loadavg: 1.28 1.66 1.86 3/83 20904
/proc/meminfo: memFree=1790664/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=17528 CPUtime=1.48
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 3581 0 0 0 146 2 0 0 25 0 1 0 22980819 17948672 3560 996147200 1448431616 1448550632 4294956208 18446744073709551615 134531146 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 4382 3560 398 29 0 3197 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 17528

[startup+3.10102 s]
/proc/loadavg: 1.28 1.66 1.86 3/83 20904
/proc/meminfo: memFree=1790088/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=17528 CPUtime=3.06
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 3581 0 0 0 304 2 0 0 25 0 1 0 22980819 17948672 3560 996147200 1448431616 1448550632 4294956208 18446744073709551615 134531160 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 4382 3560 398 29 0 3197 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 17528

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

[startup+3.30104 s]
/proc/loadavg: 1.28 1.66 1.86 3/83 20904
/proc/meminfo: memFree=1790088/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=17528 CPUtime=3.26
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 3581 0 0 0 324 2 0 0 25 0 1 0 22980819 17948672 3560 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860625 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 4382 3560 398 29 0 3197 0
Current children cumulated CPU time (s) 3.26
Current children cumulated vsize (KiB) 17528

[startup+4.10113 s]
/proc/loadavg: 1.28 1.66 1.86 3/83 20904
/proc/meminfo: memFree=1789192/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=17528 CPUtime=4.05
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 3581 0 0 0 403 2 0 0 25 0 1 0 22980819 17948672 3560 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534246 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 4382 3560 398 29 0 3197 0
Current children cumulated CPU time (s) 4.05
Current children cumulated vsize (KiB) 17528

[startup+4.30115 s]
/proc/loadavg: 1.28 1.66 1.86 3/83 20904
/proc/meminfo: memFree=1789192/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=17528 CPUtime=4.25
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 3581 0 0 0 423 2 0 0 25 0 1 0 22980819 17948672 3560 996147200 1448431616 1448550632 4294956208 18446744073709551615 134532265 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 4382 3560 398 29 0 3197 0
Current children cumulated CPU time (s) 4.25
Current children cumulated vsize (KiB) 17528

[startup+4.40116 s]
/proc/loadavg: 1.28 1.66 1.86 3/83 20904
/proc/meminfo: memFree=1789192/2055912 swapFree=4192812/4192956
[pid=20903] ppid=20901 vsize=17532 CPUtime=4.35
/proc/20903/stat : 20903 (ld-linux.so.2) R 20901 20903 18209 0 -1 4194304 3606 0 0 0 433 2 0 0 25 0 1 0 22980819 17952768 3585 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157378258 0 0 4096 0 0 0 0 17 1 0 0
/proc/20903/statm: 4383 3585 422 29 0 3198 0
Current children cumulated CPU time (s) 4.35
Current children cumulated vsize (KiB) 17532

Child status: 0
Real time (s): 4.44618
CPU time (s): 4.40033
CPU user time (s): 4.37633
CPU system time (s): 0.023996
CPU usage (%): 98.9689
Max. virtual memory (cumulated for all children) (KiB): 17532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.37633
system time used= 0.023996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3615
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= 24
involuntary context switches= 97

runsolver used 0.009998 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node78 at 2009-07-12 02:39:23
IDJOB=2074329
IDBENCH=56088
IDSOLVER=769
FILE ID=node78/2074329-1247359162
PBS_JOBID= 9506814
Free space on /tmp= 126780 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-15-15-2.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074329-1247359162/watcher-2074329-1247359162 -o /tmp/evaluation-result-2074329-1247359162/solver-2074329-1247359162 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074329-1247359162.xml

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

MD5SUM BENCH= d253e49a50bf50fec79c621cae233451
RANDOM SEED=636366893

node78.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		: 3000.232
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		: 3000.232
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:      2055912 kB
MemFree:       1804720 kB
Buffers:         39616 kB
Cached:         110392 kB
SwapCached:          0 kB
Active:         128860 kB
Inactive:        72272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055912 kB
LowFree:       1804720 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           20412 kB
Writeback:           0 kB
Mapped:          71512 kB
Slab:            35012 kB
Committed_AS:   230268 kB
PageTables:       1952 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126780 MiB
End job on node78 at 2009-07-12 02:39:27