Trace number 1040944

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-option 1.314UNSAT 0.184971 0.22998

DiagnosticValue
ASSIGNMENTS724
CHECKS191981

General information on the benchmark

Namecsp/allsquaresUnsat/
normalized-squaresUnsat-13-13.xml
MD5SUMe082a3303b1bc98eb6c5d288c8c14530
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.041992
Satisfiable
(Un)Satisfiability was proved
Number of variables338
Number of constraints393
Maximum constraint arity13
Maximum domain size29
Number of constraints which are defined in extension0
Number of constraints which are defined in intension313
Global constraints used (with number of constraints)cumulative(2),weightedsum(78)

Solver Data (download as text)

0.00/0.05	c mistral-option version 1.313
0.15/0.22	s UNSATISFIABLE
0.15/0.22	d CHECKS 191981
0.15/0.22	d ASSIGNMENTS 724

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-1040944-1214999004/watcher-1040944-1214999004 -o /tmp/evaluation-result-1040944-1214999004/solver-1040944-1214999004 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1040944-1214999004.xml -heu dyn -sac 3 -ds 2 

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: 2.42 2.32 1.89 3/82 7912
/proc/meminfo: memFree=505864/2055920 swapFree=4180664/4192956
[pid=7912] ppid=7910 vsize=18572 CPUtime=0
/proc/7912/stat : 7912 (runsolver) R 7910 7912 4703 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 1978873421 19017728 293 996147200 4194304 4296836 548682068432 18446744073709551615 209135922471 0 0 4096 24578 0 0 0 17 1 0 0
/proc/7912/statm: 4643 293 257 25 0 2626 0

[startup+0.0767619 s]
/proc/loadavg: 2.42 2.32 1.89 3/82 7912
/proc/meminfo: memFree=505864/2055920 swapFree=4180664/4192956
[pid=7912] ppid=7910 vsize=5244 CPUtime=0.03
/proc/7912/stat : 7912 (xsolve) R 7910 7912 4703 0 -1 4194304 631 0 7 0 2 1 0 0 18 0 1 0 1978873421 5369856 604 996147200 134512640 135239763 4294956208 18446744073709551615 12398309 0 0 4096 0 0 0 0 17 0 0 0
/proc/7912/statm: 1311 604 380 177 0 214 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5244

[startup+0.101771 s]
/proc/loadavg: 2.42 2.32 1.89 3/82 7912
/proc/meminfo: memFree=505864/2055920 swapFree=4180664/4192956
[pid=7912] ppid=7910 vsize=7112 CPUtime=0.05
/proc/7912/stat : 7912 (xsolve) R 7910 7912 4703 0 -1 4194304 1132 0 7 0 4 1 0 0 18 0 1 0 1978873421 7282688 1105 996147200 134512640 135239763 4294956208 18446744073709551615 135097609 0 0 4096 0 0 0 0 17 0 0 0
/proc/7912/statm: 1778 1105 418 177 0 681 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 7112

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

[startup+0.201775 s]
/proc/loadavg: 2.42 2.32 1.89 3/82 7912
/proc/meminfo: memFree=505864/2055920 swapFree=4180664/4192956
[pid=7912] ppid=7910 vsize=7112 CPUtime=0.15
/proc/7912/stat : 7912 (xsolve) R 7910 7912 4703 0 -1 4194304 1132 0 7 0 14 1 0 0 19 0 1 0 1978873421 7282688 1105 996147200 134512640 135239763 4294956208 18446744073709551615 135097600 0 0 4096 0 0 0 0 17 0 0 0
/proc/7912/statm: 1778 1105 418 177 0 681 0
Current children cumulated CPU time (s) 0.15
Current children cumulated vsize (KiB) 7112

Child status: 0
Real time (s): 0.22998
CPU time (s): 0.184971
CPU user time (s): 0.171973
CPU system time (s): 0.012998
CPU usage (%): 80.4292
Max. virtual memory (cumulated for all children) (KiB): 7112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.171973
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1147
page faults= 8
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 18
involuntary context switches= 31

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node41 at 2008-07-02 13:43:24
IDJOB=1040944
IDBENCH=53756
IDSOLVER=357
FILE ID=node41/1040944-1214999004
PBS_JOBID= 7870841
Free space on /tmp= 64840 MiB

SOLVER NAME= Mistral-option 1.314
BENCH NAME= CPAI08/csp/allsquaresUnsat/normalized-squaresUnsat-13-13.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dyn -sac 3 -ds 2 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1040944-1214999004/watcher-1040944-1214999004 -o /tmp/evaluation-result-1040944-1214999004/solver-1040944-1214999004 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1040944-1214999004.xml -heu dyn -sac 3 -ds 2 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= e082a3303b1bc98eb6c5d288c8c14530
RANDOM SEED=851963826

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		: 3000.232
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        506408 kB
Buffers:          4760 kB
Cached:        1430612 kB
SwapCached:       5888 kB
Active:        1455840 kB
Inactive:         5308 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        506408 kB
SwapTotal:     4192956 kB
SwapFree:      4180664 kB
Dirty:          208740 kB
Writeback:           0 kB
Mapped:          43064 kB
Slab:            73624 kB
Committed_AS:  3436968 kB
PageTables:       1860 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= 64836 MiB
End job on node41 at 2008-07-02 13:43:24