Trace number 237702

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, and are wall clock time (not CPU 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 2006-12-04Signal 0.058991 0.100135

General information on the benchmark

Namehaystacks/
haystacks_45.xml
MD5SUMbf8bac94899db29cb354982ba4b70059
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 benchmark1658.19
SatisfiableNO
(Un)Satisfiability was proved
Number of variables2025
Number of constraints44594
Maximum constraint arity2
Maximum domain size45
Number of constraints which are defined in extension0
Number of constraints which are defined in intension44594
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c 
0.05	c Parsing xml file
0.05	c 	domains...............    0
0.05	c 	variables............. 0.04
0.09	c 	predicates....test
0.09	.....test
0.09	...    0
0.09	c 	constraints.solver: models/src/MyCallback.h:681: virtual void CSPXMLParser::MyCallback::endConstraint(): Assertion `predScope[idcur][k][l] < predMaxSize' failed.

Verifier Data (download as text)

ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-237702-1168718634 -o ROOT/results/node13/solver-237702-1168718634 -C 1800 -M 900 /tmp/evaluation/237702-1168718634/mistral/bin/solver /tmp/evaluation/237702-1168718634/unknown.xml -v 1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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
/proc/loadavg: 2.17 2.18 2.17 5/94 24088
/proc/meminfo: memFree=1796888/2055920 swapFree=4169380/4192956
[pid=24087] ppid=24085 vsize=18540 CPUtime=0
/proc/24087/stat : 24087 (runsolver) R 24085 20864 20864 0 -1 4194368 5 0 0 0 0 0 0 0 19 0 1 0 220258463 18984960 277 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 269757246244 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24087/statm: 4635 277 242 17 0 2626 0
Current StackSize limit: 10240 KiB


Child ended because it received signal 6 (SIGABRT)
Real time (s): 0.100135
CPU time (s): 0.058991
CPU user time (s): 0.045993
CPU system time (s): 0.012998
CPU usage (%): 58.9115
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.045993
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= 1035
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 17
involuntary context switches= 46

runsolver used 0.004999 s user time and 0.002999 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Sat Jan 13 20:03:55 UTC 2007


IDJOB= 237702
IDBENCH= 6957
IDSOLVER= 84
FILE ID= node13/237702-1168718634

PBS_JOBID= 3547348

Free space on /tmp= 66549 MiB

SOLVER NAME= Mistral 2006-12-04
BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_45.xml
COMMAND LINE= /tmp/evaluation/237702-1168718634/mistral/bin/solver /tmp/evaluation/237702-1168718634/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-237702-1168718634 -o ROOT/results/node13/solver-237702-1168718634 -C 1800 -M 900  /tmp/evaluation/237702-1168718634/mistral/bin/solver /tmp/evaluation/237702-1168718634/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  bf8bac94899db29cb354982ba4b70059

RANDOM SEED= 871488296

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.247
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		: 3000.247
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:       1797368 kB
Buffers:          4232 kB
Cached:          67848 kB
SwapCached:       1088 kB
Active:         176168 kB
Inactive:        31764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1797368 kB
SwapTotal:     4192956 kB
SwapFree:      4169380 kB
Dirty:            8384 kB
Writeback:           0 kB
Mapped:         154280 kB
Slab:            34924 kB
Committed_AS:  7557104 kB
PageTables:       2712 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 node13 on Sat Jan 13 20:03:55 UTC 2007