Trace number 210164

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 2006-12-04UNSAT 3.74543 3.76114

General information on the benchmark

NamepseudoSeries/
ssa/ssa-6288-047.xml
MD5SUM0f6897f58f76d11cc2ea0346e05de975
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 benchmark3.18451
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables20820
Number of constraints44644
Maximum constraint arity6
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension44644
Global constraints used (with number of constraints)

Solver Data (download as text)

0.02	c 
0.02	c Parsing xml file
0.02	c 	domains...............    0
0.02	c 	variables............. 0.43
0.44	c 	predicates............    0
0.45	c 	constraints........... 3.13
3.58	c Allocating memory
3.58	c 
3.58	c time limit = -1
3.58	c heuristic = dom/wdeg
3.58	c restart policy = No restart
3.58	c 
3.58	c Solving
3.58	c
3.64	s UNSATISFIABLE
3.64	d        UNSAT         0 BTS         0 s

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node10/watcher-210164-1168195926 -o ROOT/results/node10/solver-210164-1168195926 -C 1800 -M 900 /tmp/evaluation/210164-1168195926/mistral/bin/solver /tmp/evaluation/210164-1168195926/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: 0.21 0.20 0.83 2/81 20358
/proc/meminfo: memFree=1685624/2055920 swapFree=4178216/4192956
[pid=20357] ppid=20355 vsize=540 CPUtime=0
/proc/20357/stat : 20357 (solver) D 20355 20357 19796 0 -1 4194304 41 0 0 0 0 0 0 0 18 0 1 0 167988764 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 8905508 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/20357/statm: 135 26 21 92 0 18 0

[startup+0.102529 s]
/proc/loadavg: 0.21 0.20 0.83 2/81 20358
/proc/meminfo: memFree=1685624/2055920 swapFree=4178216/4192956
[pid=20357] ppid=20355 vsize=7984 CPUtime=0.08
/proc/20357/stat : 20357 (solver) R 20355 20357 19796 0 -1 4194304 1045 0 0 0 8 0 0 0 18 0 1 0 167988764 8175616 1013 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 9340539 0 0 4096 0 0 0 0 17 1 0 0
/proc/20357/statm: 1996 1013 692 92 0 340 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7984

[startup+0.510582 s]
/proc/loadavg: 0.21 0.20 0.83 2/81 20358
/proc/meminfo: memFree=1685624/2055920 swapFree=4178216/4192956
[pid=20357] ppid=20355 vsize=11784 CPUtime=0.49
/proc/20357/stat : 20357 (solver) R 20355 20357 19796 0 -1 4194304 2016 0 0 0 48 1 0 0 22 0 1 0 167988764 12066816 1984 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 9340539 0 0 4096 0 0 0 0 17 1 0 0
/proc/20357/statm: 2946 1984 708 92 0 1290 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 11784

[startup+1.3357 s]
/proc/loadavg: 0.21 0.20 0.83 2/81 20361
/proc/meminfo: memFree=1677560/2055920 swapFree=4178216/4192956
[pid=20357] ppid=20355 vsize=15276 CPUtime=1.31
/proc/20357/stat : 20357 (solver) R 20355 20357 19796 0 -1 4194304 2910 0 0 0 130 1 0 0 25 0 1 0 167988764 15642624 2878 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 9338364 0 0 4096 0 0 0 0 17 1 0 0
/proc/20357/statm: 3819 2878 708 92 0 2163 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 15276

[startup+2.97292 s]
/proc/loadavg: 0.21 0.20 0.83 2/81 20361
/proc/meminfo: memFree=1673272/2055920 swapFree=4178216/4192956
[pid=20357] ppid=20355 vsize=21940 CPUtime=2.95
/proc/20357/stat : 20357 (solver) R 20355 20357 19796 0 -1 4194304 4555 0 0 0 293 2 0 0 25 0 1 0 167988764 22466560 4490 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 9340539 0 0 4096 0 0 0 0 17 1 0 0
/proc/20357/statm: 5485 4490 713 92 0 3829 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 21940

Child status: 0
Real time (s): 3.76114
CPU time (s): 3.74543
CPU user time (s): 3.70744
CPU system time (s): 0.037994
CPU usage (%): 99.5822
Max. virtual memory (cumulated for all children) (KiB): 31796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.70744
system time used= 0.037994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7001
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= 81

runsolver used 0.003999 s user time and 0.015997 s system time

The end

Launcher Data (download as text)

Begin job on node10 on Sun Jan  7 18:52:08 UTC 2007


IDJOB= 210164
IDBENCH= 4598
FILE ID= node10/210164-1168195926

PBS_JOBID= 3480494

Free space on /tmp= 66368 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pseudoSeries/ssa/ssa-6288-047.xml
COMMAND LINE= /tmp/evaluation/210164-1168195926/mistral/bin/solver /tmp/evaluation/210164-1168195926/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-210164-1168195926 -o ROOT/results/node10/solver-210164-1168195926 -C 1800 -M 900  /tmp/evaluation/210164-1168195926/mistral/bin/solver /tmp/evaluation/210164-1168195926/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  0f6897f58f76d11cc2ea0346e05de975

RANDOM SEED= 455416096

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		: 3000.232
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		: 3000.232
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:       1686024 kB
Buffers:         37760 kB
Cached:         235372 kB
SwapCached:       2064 kB
Active:         153412 kB
Inactive:       153932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1686024 kB
SwapTotal:     4192956 kB
SwapFree:      4178216 kB
Dirty:            9768 kB
Writeback:           0 kB
Mapped:          43820 kB
Slab:            47780 kB
Committed_AS:  4171020 kB
PageTables:       2064 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= 66368 MiB



End job on node10 on Sun Jan  7 18:52:22 UTC 2007