Trace number 2074340

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 1.47578 1.49129

DiagnosticValue
ASSIGNMENTS2535
CHECKS1218260
NODES2535

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-10-10-2.xml
MD5SUM242a13254f0897334325ad0c36acff97
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 benchmark1.47578
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints2025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2025
Global constraints used (with number of constraints)

Solver Data 

0.00/0.11	c mistral version 1.545
1.38/1.48	s UNSATISFIABLE
1.38/1.48	d CHECKS 1218262
1.38/1.48	d ASSIGNMENTS 2535
1.38/1.48	d NODES 2535 BACKTRACKS 2498 FAILURES 2499 RUNTIME 1.35 TOTALTIME 1.46 NODES/s 1877.78 CHECKS/s 902416

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-2074340-1247359164/watcher-2074340-1247359164 -o /tmp/evaluation-result-2074340-1247359164/solver-2074340-1247359164 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074340-1247359164.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: 1.47 1.86 1.95 4/81 16926
/proc/meminfo: memFree=1638168/2055920 swapFree=4192956/4192956
[pid=16926] ppid=16924 vsize=18576 CPUtime=0
/proc/16926/stat : 16926 (runsolver) R 16924 16926 14884 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 22980433 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 269930261799 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/16926/statm: 4644 284 249 26 0 2626 0

[startup+0.111828 s]
/proc/loadavg: 1.47 1.86 1.95 4/81 16926
/proc/meminfo: memFree=1638168/2055920 swapFree=4192956/4192956
[pid=16926] ppid=16924 vsize=5588 CPUtime=0.1
/proc/16926/stat : 16926 (ld-linux.so.2) R 16924 16926 14884 0 -1 4194304 617 0 0 0 10 0 0 0 20 0 1 0 22980433 5722112 596 996147200 1448431616 1448550632 4294956208 18446744073709551615 134688896 0 0 4096 0 0 0 0 17 0 0 0
/proc/16926/statm: 1397 596 373 29 0 212 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5588

[startup+0.202112 s]
/proc/loadavg: 1.47 1.86 1.95 4/81 16926
/proc/meminfo: memFree=1638168/2055920 swapFree=4192956/4192956
[pid=16926] ppid=16924 vsize=7304 CPUtime=0.19
/proc/16926/stat : 16926 (ld-linux.so.2) R 16924 16926 14884 0 -1 4194304 1053 0 0 0 19 0 0 0 20 0 1 0 22980433 7479296 1032 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534283 0 0 4096 0 0 0 0 17 0 0 0
/proc/16926/statm: 1826 1032 398 29 0 641 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7304

[startup+0.302118 s]
/proc/loadavg: 1.47 1.86 1.95 4/81 16926
/proc/meminfo: memFree=1638168/2055920 swapFree=4192956/4192956
[pid=16926] ppid=16924 vsize=7304 CPUtime=0.29
/proc/16926/stat : 16926 (ld-linux.so.2) R 16924 16926 14884 0 -1 4194304 1053 0 0 0 29 0 0 0 22 0 1 0 22980433 7479296 1032 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534224 0 0 4096 0 0 0 0 17 0 0 0
/proc/16926/statm: 1826 1032 398 29 0 641 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7304

[startup+0.702164 s]
/proc/loadavg: 1.47 1.86 1.95 4/81 16926
/proc/meminfo: memFree=1638168/2055920 swapFree=4192956/4192956
[pid=16926] ppid=16924 vsize=7304 CPUtime=0.69
/proc/16926/stat : 16926 (ld-linux.so.2) R 16924 16926 14884 0 -1 4194304 1053 0 0 0 69 0 0 0 25 0 1 0 22980433 7479296 1032 996147200 1448431616 1448550632 4294956208 18446744073709551615 134531162 0 0 4096 0 0 0 0 17 0 0 0
/proc/16926/statm: 1826 1032 398 29 0 641 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7304

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

[startup+0.802176 s]
/proc/loadavg: 1.47 1.86 1.95 4/81 16926
/proc/meminfo: memFree=1638168/2055920 swapFree=4192956/4192956
[pid=16926] ppid=16924 vsize=7304 CPUtime=0.79
/proc/16926/stat : 16926 (ld-linux.so.2) R 16924 16926 14884 0 -1 4194304 1053 0 0 0 79 0 0 0 25 0 1 0 22980433 7479296 1032 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860543 0 0 4096 0 0 0 0 17 0 0 0
/proc/16926/statm: 1826 1032 398 29 0 641 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 7304

[startup+1.20622 s]
/proc/loadavg: 1.51 1.86 1.95 3/82 16927
/proc/meminfo: memFree=1635536/2055920 swapFree=4192956/4192956
[pid=16926] ppid=16924 vsize=7304 CPUtime=1.18
/proc/16926/stat : 16926 (ld-linux.so.2) R 16924 16926 14884 0 -1 4194304 1053 0 0 0 118 0 0 0 25 0 1 0 22980433 7479296 1032 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534261 0 0 4096 0 0 0 0 17 0 0 0
/proc/16926/statm: 1826 1032 398 29 0 641 0
Current children cumulated CPU time (s) 1.18
Current children cumulated vsize (KiB) 7304

[startup+1.40225 s]
/proc/loadavg: 1.51 1.86 1.95 3/82 16927
/proc/meminfo: memFree=1635536/2055920 swapFree=4192956/4192956
[pid=16926] ppid=16924 vsize=7304 CPUtime=1.38
/proc/16926/stat : 16926 (ld-linux.so.2) R 16924 16926 14884 0 -1 4194304 1053 0 0 0 138 0 0 0 25 0 1 0 22980433 7479296 1032 996147200 1448431616 1448550632 4294956208 18446744073709551615 135265031 0 0 4096 0 0 0 0 17 0 0 0
/proc/16926/statm: 1826 1032 398 29 0 641 0
Current children cumulated CPU time (s) 1.38
Current children cumulated vsize (KiB) 7304

Child status: 0
Real time (s): 1.49129
CPU time (s): 1.47578
CPU user time (s): 1.46978
CPU system time (s): 0.005999
CPU usage (%): 98.9599
Max. virtual memory (cumulated for all children) (KiB): 7304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.46978
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1087
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= 38

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node53 at 2009-07-12 02:39:24
IDJOB=2074340
IDBENCH=56089
IDSOLVER=769
FILE ID=node53/2074340-1247359164
PBS_JOBID= 9506906
Free space on /tmp= 65932 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-10-10-2.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074340-1247359164/watcher-2074340-1247359164 -o /tmp/evaluation-result-2074340-1247359164/solver-2074340-1247359164 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074340-1247359164.xml

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

MD5SUM BENCH= 242a13254f0897334325ad0c36acff97
RANDOM SEED=1802114304

node53.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:       1638648 kB
Buffers:         64036 kB
Cached:         172944 kB
SwapCached:          0 kB
Active:         195792 kB
Inactive:       153024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1638648 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1764 kB
Writeback:           0 kB
Mapped:         131028 kB
Slab:            53620 kB
Committed_AS:   335724 kB
PageTables:       1996 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= 65932 MiB
End job on node53 at 2009-07-12 02:39:26