Trace number 236234

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) 1.67174 1.70013

General information on the benchmark

Namefisher/
FISCHER11-8-fair.xml
MD5SUMa6e92cbd9138a23d28765fa511096926
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 benchmark1567.8
SatisfiableNO
(Un)Satisfiability was proved
Number of variables23382
Number of constraints22147
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension22147
Global constraints used (with number of constraints)

Solver Data (download as text)

0.21	c 
0.21	c Parsing xml file
0.21	c 	domains...............    0
0.21	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/node44/watcher-236234-1168342221 -o ROOT/results/node44/solver-236234-1168342221 -C 1800 -M 900 /tmp/evaluation/236234-1168342221/mistral/bin/solver /tmp/evaluation/236234-1168342221/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: 2.02 2.01 1.91 5/81 11431
/proc/meminfo: memFree=1747144/2055920 swapFree=4191892/4192956
[pid=11430] ppid=11428 vsize=540 CPUtime=0
/proc/11430/stat : 11430 (solver) R 11428 11430 10096 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 182621184 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11281188 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/11430/statm: 135 26 21 92 0 18 0

[startup+0.103138 s]
/proc/loadavg: 2.02 2.01 1.91 5/81 11431
/proc/meminfo: memFree=1747144/2055920 swapFree=4191892/4192956
[pid=11430] ppid=11428 vsize=60908 CPUtime=0.09
/proc/11430/stat : 11430 (solver) R 11428 11430 10096 0 -1 4194304 14258 0 0 0 3 6 0 0 18 0 1 0 182621184 62369792 14226 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11716219 0 0 4096 0 0 0 0 17 1 0 0
/proc/11430/statm: 15227 14226 692 92 0 13571 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 60908

[startup+0.511178 s]
/proc/loadavg: 2.02 2.01 1.91 5/81 11431
/proc/meminfo: memFree=1747144/2055920 swapFree=4191892/4192956
[pid=11430] ppid=11428 vsize=318288 CPUtime=0.49
/proc/11430/stat : 11430 (solver) R 11428 11430 10096 0 -1 4194304 78605 0 0 0 17 32 0 0 21 0 1 0 182621184 325926912 78573 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4158878729 0 0 4096 0 0 0 0 17 1 0 0
/proc/11430/statm: 79572 78573 692 92 0 77916 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 318288

[startup+1.33226 s]
/proc/loadavg: 2.02 2.01 1.91 3/81 11431
/proc/meminfo: memFree=1043080/2055920 swapFree=4191892/4192956
[pid=11430] ppid=11428 vsize=840040 CPUtime=1.31
/proc/11430/stat : 11430 (solver) R 11428 11430 10096 0 -1 4194304 209016 0 0 0 41 90 0 0 25 0 1 0 182621184 860200960 208984 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804791 0 0 4096 0 0 0 0 17 1 0 0
/proc/11430/statm: 210010 208984 692 92 0 208354 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 840040



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.53628 s]
/proc/loadavg: 2.02 2.01 1.91 3/81 11431
/proc/meminfo: memFree=781512/2055920 swapFree=4191892/4192956
[pid=11430] ppid=11428 vsize=970552 CPUtime=1.51
/proc/11430/stat : 11430 (solver) R 11428 11430 10096 0 -1 4194304 241642 0 0 0 48 103 0 0 25 0 1 0 182621184 993845248 241610 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11716219 0 0 4096 0 0 0 0 17 1 0 0
/proc/11430/statm: 242638 241610 692 92 0 240982 0
Current children cumulated CPU time (s) 1.51
Current children cumulated vsize (KiB) 970552

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1.70013
CPU time (s): 1.67174
CPU user time (s): 0.482926
CPU system time (s): 1.18882
CPU usage (%): 98.3305
Max. virtual memory (cumulated for all children) (KiB): 970552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.482926
system time used= 1.18882
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 241642
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= 13
involuntary context switches= 68

runsolver used 0.006998 s user time and 0.013997 s system time

The end

Launcher Data (download as text)

Begin job on node44 on Tue Jan  9 11:30:21 UTC 2007


IDJOB= 236234
IDBENCH= 6831
FILE ID= node44/236234-1168342221

PBS_JOBID= 3503476

Free space on /tmp= 66532 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER11-8-fair.xml
COMMAND LINE= /tmp/evaluation/236234-1168342221/mistral/bin/solver /tmp/evaluation/236234-1168342221/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-236234-1168342221 -o ROOT/results/node44/solver-236234-1168342221 -C 1800 -M 900  /tmp/evaluation/236234-1168342221/mistral/bin/solver /tmp/evaluation/236234-1168342221/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  a6e92cbd9138a23d28765fa511096926

RANDOM SEED= 193678077

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		: 3000.213
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		: 3000.213
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:       1747560 kB
Buffers:         22248 kB
Cached:         151904 kB
SwapCached:        268 kB
Active:         126632 kB
Inactive:       123340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1747560 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            6792 kB
Writeback:           0 kB
Mapped:          93680 kB
Slab:            43536 kB
Committed_AS:  4776984 kB
PageTables:       1968 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= 66532 MiB



End job on node44 on Tue Jan  9 11:30:24 UTC 2007