Trace number 237027

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) 1.55276 1.5832

General information on the benchmark

Namefisher/
FISCHER4-9-fair.xml
MD5SUM85c45fb119102a6d0e2cec3da525c021
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 benchmark1563.83
SatisfiableNO
(Un)Satisfiability was proved
Number of variables9407
Number of constraints8887
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension8887
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	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/node45/watcher-237027-1168345950 -o ROOT/results/node45/solver-237027-1168345950 -C 1800 -M 900 /tmp/evaluation/237027-1168345950/mistral/bin/solver /tmp/evaluation/237027-1168345950/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: 2.17 2.13 1.98 4/81 27761
/proc/meminfo: memFree=1851704/2055920 swapFree=4184048/4192956
[pid=27760] ppid=27758 vsize=6792 CPUtime=0
/proc/27760/stat : 27760 (solver) R 27758 27760 26300 0 -1 4194304 432 0 0 0 0 0 0 0 18 0 1 0 182994037 6955008 411 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4696952 0 0 4096 0 0 0 0 17 0 0 0
/proc/27760/statm: 1698 412 373 92 0 30 0

[startup+0.104421 s]
/proc/loadavg: 2.17 2.13 1.98 4/81 27761
/proc/meminfo: memFree=1851704/2055920 swapFree=4184048/4192956
[pid=27760] ppid=27758 vsize=67128 CPUtime=0.1
/proc/27760/stat : 27760 (solver) R 27758 27760 26300 0 -1 4194304 15812 0 0 0 4 6 0 0 18 0 1 0 182994037 68739072 15781 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 0 0 0
/proc/27760/statm: 16782 15787 692 92 0 15126 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 67128

[startup+0.514491 s]
/proc/loadavg: 2.17 2.13 1.98 4/81 27761
/proc/meminfo: memFree=1851704/2055920 swapFree=4184048/4192956
[pid=27760] ppid=27758 vsize=336268 CPUtime=0.51
/proc/27760/stat : 27760 (solver) R 27758 27760 26300 0 -1 4194304 83100 0 0 0 16 35 0 0 22 0 1 0 182994037 344338432 83068 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 0 0 0
/proc/27760/statm: 84067 83075 692 92 0 82411 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 336268

[startup+1.33564 s]
/proc/loadavg: 2.17 2.13 1.98 3/81 27761
/proc/meminfo: memFree=1135480/2055920 swapFree=4184048/4192956
[pid=27760] ppid=27758 vsize=858816 CPUtime=1.3
/proc/27760/stat : 27760 (solver) R 27758 27760 26300 0 -1 4194304 213742 0 0 0 41 89 0 0 25 0 1 0 182994037 879427584 213710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 0 0 0
/proc/27760/statm: 214704 213717 692 92 0 213048 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 858816



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.43766 s]
/proc/loadavg: 2.17 2.13 1.98 3/81 27761
/proc/meminfo: memFree=930680/2055920 swapFree=4184048/4192956
[pid=27760] ppid=27758 vsize=928924 CPUtime=1.4
/proc/27760/stat : 27760 (solver) R 27758 27760 26300 0 -1 4194304 231241 0 0 0 44 96 0 0 25 0 1 0 182994037 951218176 231209 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 0 0 0
/proc/27760/statm: 232231 231215 692 92 0 230575 0
Current children cumulated CPU time (s) 1.4
Current children cumulated vsize (KiB) 928924

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1.5832
CPU time (s): 1.55276
CPU user time (s): 0.448931
CPU system time (s): 1.10383
CPU usage (%): 98.0774
Max. virtual memory (cumulated for all children) (KiB): 928924

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.448931
system time used= 1.10383
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 231276
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= 12
involuntary context switches= 42

runsolver used 0.005999 s user time and 0.010998 s system time

The end

Launcher Data (download as text)

Begin job on node45 on Tue Jan  9 12:32:31 UTC 2007


IDJOB= 237027
IDBENCH= 6892
FILE ID= node45/237027-1168345950

PBS_JOBID= 3503513

Free space on /tmp= 66547 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER4-9-fair.xml
COMMAND LINE= /tmp/evaluation/237027-1168345950/mistral/bin/solver /tmp/evaluation/237027-1168345950/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-237027-1168345950 -o ROOT/results/node45/solver-237027-1168345950 -C 1800 -M 900  /tmp/evaluation/237027-1168345950/mistral/bin/solver /tmp/evaluation/237027-1168345950/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  85c45fb119102a6d0e2cec3da525c021

RANDOM SEED= 104865498

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		: 3000.259
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		: 3000.259
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:       1852120 kB
Buffers:         15884 kB
Cached:          70968 kB
SwapCached:       2704 kB
Active:         117084 kB
Inactive:        30888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1852120 kB
SwapTotal:     4192956 kB
SwapFree:      4184048 kB
Dirty:            4496 kB
Writeback:           0 kB
Mapped:          76192 kB
Slab:            41024 kB
Committed_AS:  4590560 kB
PageTables:       1944 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= 66547 MiB



End job on node45 on Tue Jan  9 12:32:33 UTC 2007