Trace number 237553

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
VALCSP 3.0Wrong Cert. 0.935857 0.948724

DiagnosticValue
CHECKS3045250
NODES625

General information on the benchmark

Namehaystacks/
haystacks_25.xml
MD5SUMa07f0f6319945eeec5dcf824462a8ed2
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark34.1428
SatisfiableNO
(Un)Satisfiability was proved
Number of variables625
Number of constraints7524
Maximum constraint arity2
Maximum domain size25
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7524
Global constraints used (with number of constraints)

Solver Data (download as text)

0.94	s SATISFIABLE
0.94	v 0 0 0 0 0 0 1 0 2 0 0 1 0 0 0 0 2 1 3 1 2 0 1 0 1 3 2 1 0 21 1 2 0 3 2 0 2 3 1 1 2 3 1 2 1 0 0 3 4 1 3 3 0 1 3 1 2 4 3 3 2 2 3 4 1 2 4 18 3 2 4 1 4 5 3 1 2 4 4 12 2 1 0 1 4 0 3 2 4 5 4 6 2 5 1 5 4 6 5 2 5 1 5 3 6 2 2 4 5 3 2 4 2 6 5 5 3 3 5 7 3 5 6 3 6 7 6 7 4 7 7 8 7 5 4 3 5 5 6 6 6 3 9 1 8 6 7 7 4 4 7 9 4 5 0 8 5 6 1 2 9 4 5 7 5 10 4 8 6 7 9 14 10 10 3 6 4 8 5 8 8 8 5 7 11 9 6 6 12 6 6 6 7 7 8 10 8 9 6 10 7 7 11 5 6 9 10 8 8 5 7 8 6 11 11 9 10 9 8 12 9 13 4 10 6 7 8 19 10 7 11 8 10 8 12 9 11 9 8 7 12 9 10 8 2 9 9 8 10 13 9 12 9 10 11 7 13 7 12 11 10 7 10 11 10 11 9 8 13 12 13 11 9 24 11 11 12 10 13 9 12 14 14 5 9 12 14 13 8 11 13 6 11 7 15 12 10 10 11 13 13 10 8 11 11 14 16 14 9 12 8 16 11 11 9 14 14 12 12 17 10 12 12 12 13 12 10 11 12 18 19 20 15 12 15 10 13 15 13 13 12 10 14 14 3 13 14 15 14 15 15 14 16 17 15 13 15 21 17 14 16 17 16 12 13 13 15 16 20 15 16 14 23 17 13 14 14 18 14 16 4 22 14 15 16 17 9 13 18 15 18 17 18 5 11 6 13 15 15 4 16 14 19 15 17 15 16 19 12 14 13 15 11 7 8 9 16 23 13 17 16 18 22 15 16 17 14 13 19 24 19 18 20 19 16 17 18 18 15 16 16 17 15 17 19 17 14 16 16 20 17 18 19 21 17 19 20 20 17 16 18 21 10 20 22 16 17 18 18 19 17 21 18 1 20 19 20 22 14 18 18 18 20 18 21 18 19 15 19 21 17 11 16 19 19 21 20 18 16 19 11 12 22 13 20 18 21 20 20 14 19 21 17 21 21 15 23 20 21 17 22 15 22 22 23 18 19 21 23 20 16 20 23 22 16 19 19 17 21 22 17 18 24 15 17 22 23 19 19 20 21 24 21 18 20 20 22 24 20 20 21 24 0 24 22 22 21 21 21 23 22 23 23 22 21 22 20 23 19 23 20 24 22 21 22 23 23 23 22 19 24 23 22 22 24 22 20 21 23 24 23 21 23 24 23 23 22 24 23 22 24 24 23 24 23 23 24 24 24 24 24 24 24 24 24 
0.94	d CHECKS 3.04525e+06
0.94	d NODES 625
0.94

Verifier Data (download as text)

ERROR: constraint C1947 is unsatisfied
Predicate is 
((parm[0]!=parm[1])&&((parm[0]+parm[1])>=2))
parm[0]=1
parm[1]=0

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node47/watcher-237553-1168349170 -o ROOT/results/node47/solver-237553-1168349170 -C 1800 -M 900 /tmp/evaluation/237553-1168349170/VALCSP /tmp/evaluation/237553-1168349170/unknown.xml 

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: 2.01 2.02 1.98 5/74 13487
/proc/meminfo: memFree=1786672/2055920 swapFree=4183980/4192956
[pid=13486] ppid=13484 vsize=1864 CPUtime=0
/proc/13486/stat : 13486 (VALCSP) R 13484 13486 11540 0 -1 4194304 215 0 0 0 0 0 0 0 20 0 1 0 183316307 1908736 193 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 10954363 0 0 4096 0 0 0 0 17 1 0 0
/proc/13486/statm: 466 193 62 8 0 138 0

[startup+0.104679 s]
/proc/loadavg: 2.01 2.02 1.98 5/74 13487
/proc/meminfo: memFree=1786672/2055920 swapFree=4183980/4192956
[pid=13486] ppid=13484 vsize=9700 CPUtime=0.09
/proc/13486/stat : 13486 (VALCSP) R 13484 13486 11540 0 -1 4194304 2125 0 0 0 8 1 0 0 20 0 1 0 183316307 9932800 2103 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530236 0 0 4096 0 0 0 0 17 1 0 0
/proc/13486/statm: 2425 2103 65 8 0 2097 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9700

[startup+0.514728 s]
/proc/loadavg: 2.01 2.02 1.98 5/74 13487
/proc/meminfo: memFree=1786672/2055920 swapFree=4183980/4192956
[pid=13486] ppid=13484 vsize=23608 CPUtime=0.49
/proc/13486/stat : 13486 (VALCSP) R 13484 13486 11540 0 -1 4194304 5633 0 0 0 47 2 0 0 23 0 1 0 183316307 24174592 5611 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531029 0 0 4096 0 0 0 0 17 1 0 0
/proc/13486/statm: 5902 5611 65 8 0 5574 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 23608

Child status: 0
Real time (s): 0.948724
CPU time (s): 0.935857
CPU user time (s): 0.893864
CPU system time (s): 0.041993
CPU usage (%): 98.6438
Max. virtual memory (cumulated for all children) (KiB): 33816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.893864
system time used= 0.041993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8247
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= 8
involuntary context switches= 21

runsolver used 0.003999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node47 on Tue Jan  9 13:26:11 UTC 2007


IDJOB= 237553
IDBENCH= 6948
FILE ID= node47/237553-1168349170

PBS_JOBID= 3503509

Free space on /tmp= 66547 MiB

BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_25.xml
COMMAND LINE= /tmp/evaluation/237553-1168349170/VALCSP /tmp/evaluation/237553-1168349170/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node47/watcher-237553-1168349170 -o ROOT/results/node47/solver-237553-1168349170 -C 1800 -M 900  /tmp/evaluation/237553-1168349170/VALCSP /tmp/evaluation/237553-1168349170/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  a07f0f6319945eeec5dcf824462a8ed2

RANDOM SEED= 48250087

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:       1787152 kB
Buffers:         34016 kB
Cached:         145656 kB
SwapCached:       3452 kB
Active:         109844 kB
Inactive:       100084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1787152 kB
SwapTotal:     4192956 kB
SwapFree:      4183980 kB
Dirty:             956 kB
Writeback:           0 kB
Mapped:          36712 kB
Slab:            44260 kB
Committed_AS:  4115132 kB
PageTables:       1864 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 node47 on Tue Jan  9 13:26:12 UTC 2007