Trace number 1088960

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
MDG-probe 2008-06-27UNSAT 0.671897 0.677029

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/graphColoring/register/inithx/
normalized-inithx-i-1-10.xml
MD5SUM2f4600fcc9d9d18c52a98a6aedbd8274
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 benchmark0.669897
Satisfiable
(Un)Satisfiability was proved
Number of variables864
Number of constraints18707
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension18707
Global constraints used (with number of constraints)

Solver Data (download as text)

0.09/0.10	c mistral-prime version 1.313
0.09/0.10	c 
0.09/0.10	c Parsing xml file
0.09/0.10	c          domains...............     0	(1 domains)
0.09/0.10	c          variables.............     0	(864 variables)
0.09/0.10	c          predicates............     0	(1 predicates)
0.09/0.10	c          constraints...........  0.58	(18707 constraints)
0.48/0.58	c Parsing time:   0.58
0.48/0.58	c
0.48/0.58	c Building model
0.59/0.62	c       513 AllDifferent constraints infered
0.59/0.64	c         0 constants
0.59/0.64	c         0 Boolean variables    (+0)
0.59/0.64	c       345 range variables      (+0)
0.59/0.64	c         0 domain (b) variables (+0)
0.59/0.64	c       519 domain (l) variables (+0)
0.59/0.64	c     18707 constraints          (+513)
0.59/0.64	c         0 values 
0.59/0.64	c Building time:   0.05
0.59/0.64	c
0.59/0.64	c Solving instance
0.59/0.64	c          heuristic = dom/wdeg
0.59/0.64	c          Randomized probing iteration = 100
0.59/0.64	c          probing limit = 30
0.59/0.64	c          level based weights = no
0.59/0.64	c          impact probing = no
0.59/0.64	c          restart policy = No restart
0.59/0.64	c          probing -4.4452e-18
0.59/0.64	c          Probing Nodes     0
0.59/0.64	c Solving time:      0
0.59/0.64	c
0.59/0.64	s UNSATISFIABLE
0.59/0.64	d CHECKS 1
0.59/0.64	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-1088960-1215260783/watcher-1088960-1215260783 -o /tmp/evaluation-result-1088960-1215260783/solver-1088960-1215260783 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1088960-1215260783.xml -v 1 -rs 177993610 -probe 1 -ph 0 -heu dom/wdeg -res no 

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: 1.92 2.00 1.99 4/74 4892
/proc/meminfo: memFree=1756232/2055920 swapFree=4179388/4192956
[pid=4892] ppid=4890 vsize=4584 CPUtime=0
/proc/4892/stat : 4892 (xsolve) R 4890 4892 4686 0 -1 4194304 335 0 0 0 0 0 0 0 19 0 1 0 638334002 4694016 302 996147200 134512640 135239859 4294956144 18446744073709551615 4159005019 0 0 4096 0 0 0 0 17 0 0 0
/proc/4892/statm: 1146 302 257 177 0 49 0

[startup+0.0673819 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 4892
/proc/meminfo: memFree=1756232/2055920 swapFree=4179388/4192956
[pid=4892] ppid=4890 vsize=5244 CPUtime=0.05
/proc/4892/stat : 4892 (xsolve) R 4890 4892 4686 0 -1 4194304 653 0 0 0 5 0 0 0 19 0 1 0 638334002 5369856 619 996147200 134512640 135239859 4294956144 18446744073709551615 2037592 0 0 4096 0 0 0 0 17 1 0 0
/proc/4892/statm: 1311 619 391 177 0 214 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5244

[startup+0.102386 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 4892
/proc/meminfo: memFree=1756232/2055920 swapFree=4179388/4192956
[pid=4892] ppid=4890 vsize=5628 CPUtime=0.09
/proc/4892/stat : 4892 (xsolve) R 4890 4892 4686 0 -1 4194304 725 0 0 0 9 0 0 0 19 0 1 0 638334002 5763072 691 996147200 134512640 135239859 4294956144 18446744073709551615 134650366 0 0 4096 0 0 0 0 17 1 0 0
/proc/4892/statm: 1407 691 391 177 0 310 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5628

[startup+0.301408 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 4892
/proc/meminfo: memFree=1756232/2055920 swapFree=4179388/4192956
[pid=4892] ppid=4890 vsize=7344 CPUtime=0.29
/proc/4892/stat : 4892 (xsolve) R 4890 4892 4686 0 -1 4194304 1147 0 0 0 29 0 0 0 21 0 1 0 638334002 7520256 1113 996147200 134512640 135239859 4294956144 18446744073709551615 134683531 0 0 4096 0 0 0 0 17 1 0 0
/proc/4892/statm: 1836 1113 391 177 0 739 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7344

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

[startup+0.501432 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 4892
/proc/meminfo: memFree=1756232/2055920 swapFree=4179388/4192956
[pid=4892] ppid=4890 vsize=9016 CPUtime=0.48
/proc/4892/stat : 4892 (xsolve) R 4890 4892 4686 0 -1 4194304 1549 0 0 0 48 0 0 0 23 0 1 0 638334002 9232384 1515 996147200 134512640 135239859 4294956144 18446744073709551615 134542913 0 0 4096 0 0 0 0 17 1 0 0
/proc/4892/statm: 2254 1515 391 177 0 1157 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 9016

[startup+0.60145 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 4892
/proc/meminfo: memFree=1756232/2055920 swapFree=4179388/4192956
[pid=4892] ppid=4890 vsize=12448 CPUtime=0.59
/proc/4892/stat : 4892 (xsolve) R 4890 4892 4686 0 -1 4194304 2437 0 0 0 58 1 0 0 24 0 1 0 638334002 12746752 2333 996147200 134512640 135239859 4294956144 18446744073709551615 134828881 0 0 4096 0 0 0 0 17 1 0 0
/proc/4892/statm: 3112 2333 409 177 0 2015 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 12448

Child status: 0
Real time (s): 0.677029
CPU time (s): 0.671897
CPU user time (s): 0.6569
CPU system time (s): 0.014997
CPU usage (%): 99.242
Max. virtual memory (cumulated for all children) (KiB): 12448

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.6569
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3424
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= 43

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node87 at 2008-07-05 14:26:23
IDJOB=1088960
IDBENCH=58154
IDSOLVER=342
FILE ID=node87/1088960-1215260783
PBS_JOBID= 7882137
Free space on /tmp= 66452 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/graphColoring/register/inithx/normalized-inithx-i-1-10.xml
COMMAND LINE= HOME/xsolve BENCHNAME -v 1 -rs RANDOMSEED -probe 1 -ph 0 -heu dom/wdeg -res no
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1088960-1215260783/watcher-1088960-1215260783 -o /tmp/evaluation-result-1088960-1215260783/solver-1088960-1215260783 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1088960-1215260783.xml -v 1 -rs 177993610 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2f4600fcc9d9d18c52a98a6aedbd8274
RANDOM SEED=177993610

node87.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1756712 kB
Buffers:         20440 kB
Cached:         215692 kB
SwapCached:       7716 kB
Active:         165868 kB
Inactive:        88196 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1756712 kB
SwapTotal:     4192956 kB
SwapFree:      4179388 kB
Dirty:            3200 kB
Writeback:           0 kB
Mapped:          25184 kB
Slab:            30368 kB
Committed_AS:  1659236 kB
PageTables:       1912 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264992 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66452 MiB
End job on node87 at 2008-07-05 14:26:24