Trace number 2074351

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 1.545SAT 0.143977 0.153197

DiagnosticValue
ASSIGNMENTS173
CHECKS49823
NODES173

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-9-9-3.xml
MD5SUM7da1eab70d7646969af163997fbe8b95
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 benchmark0.143977
Satisfiable
(Un)Satisfiability was proved
Number of variables81
Number of constraints1296
Maximum constraint arity4
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1296
Global constraints used (with number of constraints)

Solver Data 

0.00/0.09	c mistral version 1.545
0.00/0.14	s SATISFIABLE
0.00/0.14	v 0 2 0 1 0 1 1 2 2 2 0 1 1 0 0 2 1 2 1 2 0 0 2 1 0 1 1 2 2 1 0 0 2 1 0 1 1 0 2 1 2 2 0 0 2 1 1 1 2 0 2 0 2 0 0 0 1 0 1 1 2 2 0 2 1 2 1 1 0 0 2 1 2 1 0 2 2 0 1 0 0
0.00/0.14	d CHECKS 49823
0.00/0.14	d ASSIGNMENTS 173
0.00/0.14	d NODES 173 BACKTRACKS 93 FAILURES 93 RUNTIME 0.06 TOTALTIME 0.13 NODES/s 2883.33 CHECKS/s 830383

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2074351-1247359173/watcher-2074351-1247359173 -o /tmp/evaluation-result-2074351-1247359173/solver-2074351-1247359173 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074351-1247359173.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: 1.46 1.74 1.92 3/83 20203
/proc/meminfo: memFree=1085208/2055920 swapFree=4192812/4192956
[pid=20203] ppid=20201 vsize=18576 CPUtime=0
/proc/20203/stat : 20203 (runsolver) R 20201 20203 18124 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 22608562 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 264519609639 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/20203/statm: 4644 284 249 26 0 2626 0

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

Child status: 0
Real time (s): 0.153197
CPU time (s): 0.143977
CPU user time (s): 0.136979
CPU system time (s): 0.006998
CPU usage (%): 93.9816
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.136979
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= 937
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= 10

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node40 at 2009-07-12 02:39:33
IDJOB=2074351
IDBENCH=56090
IDSOLVER=769
FILE ID=node40/2074351-1247359173
PBS_JOBID= 9506944
Free space on /tmp= 66228 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-9-9-3.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074351-1247359173/watcher-2074351-1247359173 -o /tmp/evaluation-result-2074351-1247359173/solver-2074351-1247359173 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074351-1247359173.xml

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

MD5SUM BENCH= 7da1eab70d7646969af163997fbe8b95
RANDOM SEED=1476645731

node40.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		: 3000.213
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		: 3000.213
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:       1085688 kB
Buffers:         72436 kB
Cached:         741320 kB
SwapCached:          0 kB
Active:         219812 kB
Inactive:       677556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1085688 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1452 kB
Writeback:           0 kB
Mapped:         104264 kB
Slab:            57748 kB
Committed_AS:   270572 kB
PageTables:       2060 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= 66228 MiB
End job on node40 at 2009-07-12 02:39:33