Trace number 1088698

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-prime 1.313UNSAT 0.743886 0.750711

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/graphColoring/school/
normalized-school1-nsh-12.xml
MD5SUM2d1e316401a6d142c241b2ebac1fc85c
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 benchmark0.727889
Satisfiable
(Un)Satisfiability was proved
Number of variables352
Number of constraints14612
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension14612
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.21	c mistral-prime version 1.313
0.58/0.69	s UNSATISFIABLE
0.58/0.69	d CHECKS 1
0.58/0.69	d ASSIGNMENTS 0

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1088698-1215259727/watcher-1088698-1215259727 -o /tmp/evaluation-result-1088698-1215259727/solver-1088698-1215259727 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1088698-1215259727.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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.95 1.98 1.99 4/84 21433
/proc/meminfo: memFree=1408176/2055920 swapFree=4180540/4192956
[pid=21433] ppid=21431 vsize=6252 CPUtime=0.19
/proc/21433/stat : 21433 (xsolve) R 21431 21433 21218 0 -1 4194304 872 0 0 0 19 0 0 0 19 0 1 0 2004947150 6402048 838 996147200 134512640 135237403 4294956240 18446744073709551615 134614893 0 0 4096 0 0 0 0 17 1 0 0
/proc/21433/statm: 1563 838 370 176 0 467 0

[startup+0.291787 s]
/proc/loadavg: 1.95 1.98 1.99 4/84 21433
/proc/meminfo: memFree=1408176/2055920 swapFree=4180540/4192956
[pid=21433] ppid=21431 vsize=6912 CPUtime=0.28
/proc/21433/stat : 21433 (xsolve) R 21431 21433 21218 0 -1 4194304 1025 0 0 0 28 0 0 0 19 0 1 0 2004947150 7077888 991 996147200 134512640 135237403 4294956240 18446744073709551615 8302325 0 0 4096 0 0 0 0 17 1 0 0
/proc/21433/statm: 1728 991 370 176 0 632 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6912

[startup+0.302786 s]
/proc/loadavg: 1.95 1.98 1.99 4/84 21433
/proc/meminfo: memFree=1408176/2055920 swapFree=4180540/4192956
[pid=21433] ppid=21431 vsize=7040 CPUtime=0.29
/proc/21433/stat : 21433 (xsolve) R 21431 21433 21218 0 -1 4194304 1047 0 0 0 29 0 0 0 19 0 1 0 2004947150 7208960 1013 996147200 134512640 135237403 4294956240 18446744073709551615 134647109 0 0 4096 0 0 0 0 17 1 0 0
/proc/21433/statm: 1760 1013 370 176 0 664 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7040

[startup+0.401807 s]
/proc/loadavg: 1.95 1.98 1.99 4/84 21433
/proc/meminfo: memFree=1408176/2055920 swapFree=4180540/4192956
[pid=21433] ppid=21431 vsize=7680 CPUtime=0.39
/proc/21433/stat : 21433 (xsolve) R 21431 21433 21218 0 -1 4194304 1234 0 0 0 39 0 0 0 20 0 1 0 2004947150 7864320 1200 996147200 134512640 135237403 4294956240 18446744073709551615 134614967 0 0 4096 0 0 0 0 17 1 0 0
/proc/21433/statm: 1920 1200 370 176 0 824 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 7680

[startup+0.70187 s]
/proc/loadavg: 1.95 1.98 1.99 4/84 21433
/proc/meminfo: memFree=1408176/2055920 swapFree=4180540/4192956
[pid=21433] ppid=21431 vsize=27296 CPUtime=0.69
/proc/21433/stat : 21433 (xsolve) R 21431 21433 21218 0 -1 4194304 6163 0 0 0 67 2 0 0 23 0 1 0 2004947150 27951104 6070 996147200 134512640 135237403 4294956240 18446744073709551615 4159148704 0 0 4096 0 0 0 0 17 1 0 0
/proc/21433/statm: 6824 6070 405 176 0 5728 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 27296

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

Child status: 0
Real time (s): 0.750711
CPU time (s): 0.743886
CPU user time (s): 0.716891
CPU system time (s): 0.026995
CPU usage (%): 99.0909
Max. virtual memory (cumulated for all children) (KiB): 27296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.716891
system time used= 0.026995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6176
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= 7
involuntary context switches= 19

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node18 at 2008-07-05 14:08:48
IDJOB=1088698
IDBENCH=58096
IDSOLVER=358
FILE ID=node18/1088698-1215259727
PBS_JOBID= 7882140
Free space on /tmp= 66548 MiB

SOLVER NAME= Mistral-prime 1.313
BENCH NAME= CPAI08/csp/graphColoring/school/normalized-school1-nsh-12.xml
COMMAND LINE= HOME/xsolve BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1088698-1215259727/watcher-1088698-1215259727 -o /tmp/evaluation-result-1088698-1215259727/solver-1088698-1215259727 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1088698-1215259727.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2d1e316401a6d142c241b2ebac1fc85c
RANDOM SEED=1868344571

node18.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		: 3000.268
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		: 3000.268
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:       1408656 kB
Buffers:         30744 kB
Cached:         193760 kB
SwapCached:       6220 kB
Active:         492608 kB
Inactive:       102920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1408656 kB
SwapTotal:     4192956 kB
SwapFree:      4180540 kB
Dirty:            2928 kB
Writeback:           0 kB
Mapped:         382384 kB
Slab:            36300 kB
Committed_AS:  4261788 kB
PageTables:       2440 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= 66548 MiB
End job on node18 at 2008-07-05 14:08:48