Trace number 2087694

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 0.081986 0.083817

DiagnosticValue
ASSIGNMENTS469
CHECKS483669
NODES469

General information on the benchmark

Namecsp/os-taillard-7/
normalized-os-taillard-7-105-4.xml
MD5SUM4e57864601eb28e4f6a729744d322830
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.081986
Satisfiable
(Un)Satisfiability was proved
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size434
Number of constraints which are defined in extension0
Number of constraints which are defined in intension294
Global constraints used (with number of constraints)

Solver Data 

0.00/0.00	c mistral version 1.545
0.00/0.08	s SATISFIABLE
0.00/0.08	v 186 73 373 0 405 163 281 308 222 107 0 121 281 373 369 308 6 361 213 114 69 388 62 0 281 310 340 145 395 361 281 62 105 24 186 163 62 361 0 252 118 322 195 124 405 310 354 0 272
0.00/0.08	d CHECKS 483669
0.00/0.08	d ASSIGNMENTS 469
0.00/0.08	d NODES 469 BACKTRACKS 263 FAILURES 263 RUNTIME 0.06 TOTALTIME 0.07 NODES/s 7816.67 CHECKS/s 8.06115e+06

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-2087694-1247386538/watcher-2087694-1247386538 -o /tmp/evaluation-result-2087694-1247386538/solver-2087694-1247386538 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2087694-1247386538.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: 2.00 2.00 1.99 4/81 28743
/proc/meminfo: memFree=1701312/2055920 swapFree=4192812/4192956
[pid=28743] ppid=28741 vsize=4804 CPUtime=0
/proc/28743/stat : 28743 (ld-linux.so.2) R 28741 28743 27000 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 0 25345479 4919296 162 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448480482 0 0 4096 0 0 0 0 17 0 0 0
/proc/28743/statm: 1201 162 137 29 0 16 0

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

Child status: 0
Real time (s): 0.083817
CPU time (s): 0.081986
CPU user time (s): 0.078987
CPU system time (s): 0.002999
CPU usage (%): 97.8155
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.078987
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 795
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= 7

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node41 at 2009-07-12 10:15:38
IDJOB=2087694
IDBENCH=58780
IDSOLVER=769
FILE ID=node41/2087694-1247386538
PBS_JOBID= 9507177
Free space on /tmp= 65860 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/os-taillard-7/normalized-os-taillard-7-105-4.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087694-1247386538/watcher-2087694-1247386538 -o /tmp/evaluation-result-2087694-1247386538/solver-2087694-1247386538 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2087694-1247386538.xml

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

MD5SUM BENCH= 4e57864601eb28e4f6a729744d322830
RANDOM SEED=1972624872

node41.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		: 3000.212
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	: 5931.00
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		: 3000.212
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:       1701792 kB
Buffers:         13688 kB
Cached:         112860 kB
SwapCached:          0 kB
Active:         265700 kB
Inactive:        36724 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1701792 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1576 kB
Writeback:           0 kB
Mapped:         196284 kB
Slab:            36640 kB
Committed_AS:   420716 kB
PageTables:       2092 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= 65856 MiB
End job on node41 at 2009-07-12 10:15:38