Trace number 236364

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 3.46547 3.84417

General information on the benchmark

Namefisher/
FISCHER8-2-fair.xml
MD5SUM71a1ef65e5f801db5143bf0a780c23e7
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 benchmark1566.75
SatisfiableNO
(Un)Satisfiability was proved
Number of variables4683
Number of constraints4420
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4420
Global constraints used (with number of constraints)

Solver Data (download as text)

0.29	c 
0.29	c Parsing xml file
0.29	c 	domains...............    0
0.30	c 	variables............. 0.98
1.29	c 	predicates...test
1.29	..test
1.29	test
1.29	.test
1.29	test
1.29	.test
1.29	test
1.29	...test
1.29	test
1.29	..    0
1.29	c 	constraints.

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/node5/watcher-236364-1168342967 -o ROOT/results/node5/solver-236364-1168342967 -C 1800 -M 900 /tmp/evaluation/236364-1168342967/mistral/bin/solver /tmp/evaluation/236364-1168342967/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: 2.07 2.17 2.53 5/94 20973
/proc/meminfo: memFree=1822568/2055920 swapFree=4192812/4192956
[pid=20972] ppid=20970 vsize=18540 CPUtime=0
/proc/20972/stat : 20972 (runsolver) R 20970 20972 20676 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 162911368 18984960 279 18446744073709551615 4194304 4267372 548682069040 18446744073709551615 226913479975 0 0 4096 24578 0 0 0 17 1 0 0
/proc/20972/statm: 4635 279 244 17 0 2626 0

[startup+0.108071 s]
/proc/loadavg: 2.07 2.17 2.53 5/94 20973
/proc/meminfo: memFree=1822568/2055920 swapFree=4192812/4192956
[pid=20972] ppid=20970 vsize=6744 CPUtime=0
/proc/20972/stat : 20972 (solver) D 20970 20972 20676 0 -1 4194304 503 0 12 0 0 0 0 0 18 0 1 0 162911368 6905856 483 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4156277682 0 0 4096 0 18446744071563479169 0 0 17 0 0 0
/proc/20972/statm: 1686 483 421 92 0 30 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 6744

[startup+0.516115 s]
/proc/loadavg: 2.07 2.17 2.53 5/94 20973
/proc/meminfo: memFree=1822568/2055920 swapFree=4192812/4192956
[pid=20972] ppid=20970 vsize=142516 CPUtime=0.21
/proc/20972/stat : 20972 (solver) R 20970 20972 20676 0 -1 4194304 34616 0 26 0 6 15 0 0 19 0 1 0 162911368 145936384 34610 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 0 0 0
/proc/20972/statm: 35629 34618 692 92 0 33973 0
Current children cumulated CPU time (s) 0.21
Current children cumulated vsize (KiB) 142516

[startup+1.33721 s]
/proc/loadavg: 2.07 2.17 2.53 3/94 20973
/proc/meminfo: memFree=1278504/2055920 swapFree=4192812/4192956
[pid=20972] ppid=20970 vsize=645164 CPUtime=1.03
/proc/20972/stat : 20972 (solver) R 20970 20972 20676 0 -1 4195840 160348 0 26 0 31 72 0 0 25 0 1 0 162911368 660647936 160341 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134559939 0 0 4096 0 0 0 0 17 0 0 0
/proc/20972/statm: 161291 160341 715 92 0 159635 0
Current children cumulated CPU time (s) 1.03
Current children cumulated vsize (KiB) 645164

[startup+2.97439 s]
/proc/loadavg: 2.07 2.17 2.53 3/94 20973
/proc/meminfo: memFree=916200/2055920 swapFree=4192812/4192956
[pid=20972] ppid=20970 vsize=645164 CPUtime=2.61
/proc/20972/stat : 20972 (solver) R 20970 20972 20676 0 -1 4195840 160348 0 26 0 31 230 0 0 25 0 1 0 162911368 660647936 160341 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134559939 0 0 4096 0 0 0 0 17 0 0 0
/proc/20972/statm: 161291 160341 715 92 0 159635 0
Current children cumulated CPU time (s) 2.61
Current children cumulated vsize (KiB) 645164

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 3.84417
CPU time (s): 3.46547
CPU user time (s): 0.314952
CPU system time (s): 3.15052
CPU usage (%): 90.1487
Max. virtual memory (cumulated for all children) (KiB): 645164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.314952
system time used= 3.15052
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 160408
page faults= 26
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 42
involuntary context switches= 182

runsolver used 0.007998 s user time and 0.015997 s system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue Jan  9 11:42:49 UTC 2007


IDJOB= 236364
IDBENCH= 6841
FILE ID= node5/236364-1168342967

PBS_JOBID= 3503196

Free space on /tmp= 66552 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER8-2-fair.xml
COMMAND LINE= /tmp/evaluation/236364-1168342967/mistral/bin/solver /tmp/evaluation/236364-1168342967/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-236364-1168342967 -o ROOT/results/node5/solver-236364-1168342967 -C 1800 -M 900  /tmp/evaluation/236364-1168342967/mistral/bin/solver /tmp/evaluation/236364-1168342967/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  71a1ef65e5f801db5143bf0a780c23e7

RANDOM SEED= 830061778

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		: 3000.240
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		: 3000.240
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:       1823048 kB
Buffers:         17796 kB
Cached:          71760 kB
SwapCached:          0 kB
Active:         136892 kB
Inactive:        42244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1823048 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4040 kB
Writeback:           0 kB
Mapped:         117520 kB
Slab:            38420 kB
Committed_AS:  5353808 kB
PageTables:       2356 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= 65928 MiB



End job on node5 on Tue Jan  9 11:42:53 UTC 2007