Trace number 236832

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 2006-12-04? (MO) 1.67374 1.74849

General information on the benchmark

Namefisher/
FISCHER10-10-fair.xml
MD5SUMde409f4b672f183c6cac13f7d2b18a64
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 benchmark1566.6
SatisfiableNO
(Un)Satisfiability was proved
Number of variables26283
Number of constraints24892
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension24892
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c 
0.10	c Parsing xml file
0.10	c 	domains...............    0
0.10	c 	variables.....

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/node33/watcher-236832-1168345278 -o ROOT/results/node33/solver-236832-1168345278 -C 1800 -M 900 /tmp/evaluation/236832-1168345278/mistral/bin/solver /tmp/evaluation/236832-1168345278/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
Current StackSize limit: 10240 KiB

/proc/loadavg: 3.36 1.73 1.30 5/81 575
/proc/meminfo: memFree=1861520/2055920 swapFree=4192224/4192956
[pid=574] ppid=572 vsize=540 CPUtime=0
/proc/574/stat : 574 (solver) R 572 574 32569 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 182921717 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 10945316 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/574/statm: 135 26 21 92 0 18 0

[startup+0.102903 s]
/proc/loadavg: 3.36 1.73 1.30 5/81 575
/proc/meminfo: memFree=1861520/2055920 swapFree=4192224/4192956
[pid=574] ppid=572 vsize=60160 CPUtime=0.09
/proc/574/stat : 574 (solver) R 572 574 32569 0 -1 4194304 14056 0 0 0 5 4 0 0 19 0 1 0 182921717 61603840 14024 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/574/statm: 15040 14024 692 92 0 13384 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 60160

[startup+0.510986 s]
/proc/loadavg: 3.36 1.73 1.30 5/81 575
/proc/meminfo: memFree=1861520/2055920 swapFree=4192224/4192956
[pid=574] ppid=572 vsize=319128 CPUtime=0.49
/proc/574/stat : 574 (solver) R 572 574 32569 0 -1 4194304 78793 0 0 0 20 29 0 0 24 0 1 0 182921717 326787072 78761 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/574/statm: 79782 78761 692 92 0 78126 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 319128

[startup+1.33216 s]
/proc/loadavg: 3.36 1.73 1.30 3/81 575
/proc/meminfo: memFree=1158544/2055920 swapFree=4192224/4192956
[pid=574] ppid=572 vsize=839132 CPUtime=1.31
/proc/574/stat : 574 (solver) R 572 574 32569 0 -1 4194304 208797 0 0 0 46 85 0 0 25 0 1 0 182921717 859271168 208765 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/574/statm: 209783 208765 692 92 0 208127 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 839132



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.5362 s]
/proc/loadavg: 3.36 1.73 1.30 3/81 575
/proc/meminfo: memFree=896720/2055920 swapFree=4192224/4192956
[pid=574] ppid=572 vsize=969644 CPUtime=1.51
/proc/574/stat : 574 (solver) R 572 574 32569 0 -1 4194304 241444 0 0 0 52 99 0 0 25 0 1 0 182921717 992915456 241412 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/574/statm: 242411 241412 692 92 0 240755 0
Current children cumulated CPU time (s) 1.51
Current children cumulated vsize (KiB) 969644

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1.74849
CPU time (s): 1.67374
CPU user time (s): 0.52492
CPU system time (s): 1.14882
CPU usage (%): 95.7252
Max. virtual memory (cumulated for all children) (KiB): 969644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.52492
system time used= 1.14882
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 241444
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= 14
involuntary context switches= 58

runsolver used 0.003999 s user time and 0.014997 s system time

The end

Launcher Data (download as text)

Begin job on node33 on Tue Jan  9 12:21:19 UTC 2007


IDJOB= 236832
IDBENCH= 6877
FILE ID= node33/236832-1168345278

PBS_JOBID= 3503468

Free space on /tmp= 66553 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER10-10-fair.xml
COMMAND LINE= /tmp/evaluation/236832-1168345278/mistral/bin/solver /tmp/evaluation/236832-1168345278/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-236832-1168345278 -o ROOT/results/node33/solver-236832-1168345278 -C 1800 -M 900  /tmp/evaluation/236832-1168345278/mistral/bin/solver /tmp/evaluation/236832-1168345278/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  de409f4b672f183c6cac13f7d2b18a64

RANDOM SEED= 859447854

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		: 3000.281
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		: 3000.281
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:       1861936 kB
Buffers:         10316 kB
Cached:          59868 kB
SwapCached:        264 kB
Active:         113712 kB
Inactive:        24568 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1861936 kB
SwapTotal:     4192956 kB
SwapFree:      4192224 kB
Dirty:            7900 kB
Writeback:           0 kB
Mapped:          86708 kB
Slab:            40772 kB
Committed_AS:  4286204 kB
PageTables:       1972 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= 66553 MiB



End job on node33 on Tue Jan  9 12:21:21 UTC 2007