Trace number 238169

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
CSPtoSAT+minisat 0.3UNSAT 5.87411 5.91828

General information on the benchmark

Namehaystacks/
haystacks_09.xml
MD5SUM9ef226d01e1821b42bf6b4fd1284cb7f
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 benchmark0.166974
SatisfiableNO
(Un)Satisfiability was proved
Number of variables81
Number of constraints332
Maximum constraint arity2
Maximum domain size9
Number of constraints which are defined in extension0
Number of constraints which are defined in intension332
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c This is CSPtoSAT+minisat version 0.3
0.10	c (c) 2006 roussel@cril.univ-artois.fr
0.10	
0.10	c This solver internally uses a modified version of MiniSat2 version 061112
0.10	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.10	
0.10	c parsing...
0.10	c ...done
0.10	c #SATvar=2027 #SATclauses=3807 #CSPpredicates=332
5.91	c SAT problem is solved
5.91	restarts              : 17
5.91	conflicts             : 161327         (27534 /sec)
5.91	decisions             : 237225         (1.55 % random) (40488 /sec)
5.91	propagations          : 7197357        (1228405 /sec)
5.91	conflict literals     : 3651912        (10.80 % deleted)
5.91	Memory used           : 8.71 MB
5.91	CPU time              : 5.85911 s
5.91	
5.91	s UNSATISFIABLE

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/node75/watcher-238169-1168092116 -o ROOT/results/node75/solver-238169-1168092116 -C 1800 -M 900 /tmp/evaluation/238169-1168092116/CSPtoSAT+minisat /tmp/evaluation/238169-1168092116/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: 2.00 1.99 1.83 5/79 26835
/proc/meminfo: memFree=1606392/2055920 swapFree=4184496/4192956
[pid=26834] ppid=26832 vsize=6696 CPUtime=0
/proc/26834/stat : 26834 (CSPtoSAT+minisa) R 26832 26834 26525 0 -1 4194304 291 0 0 0 0 0 0 0 20 0 1 0 157611007 6856704 272 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 6698079 0 0 4096 0 0 0 0 17 1 0 0
/proc/26834/statm: 1674 272 251 52 0 30 0

[startup+0.103438 s]
/proc/loadavg: 2.00 1.99 1.83 5/79 26835
/proc/meminfo: memFree=1606392/2055920 swapFree=4184496/4192956
[pid=26834] ppid=26832 vsize=7196 CPUtime=0.09
/proc/26834/stat : 26834 (CSPtoSAT+minisa) R 26832 26834 26525 0 -1 4194304 950 0 0 0 9 0 0 0 20 0 1 0 157611007 7368704 893 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134678254 0 0 4096 0 0 0 0 17 0 0 0
/proc/26834/statm: 1799 893 724 52 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7196

[startup+0.511478 s]
/proc/loadavg: 2.00 1.99 1.83 5/79 26835
/proc/meminfo: memFree=1606392/2055920 swapFree=4184496/4192956
[pid=26834] ppid=26832 vsize=7460 CPUtime=0.5
/proc/26834/stat : 26834 (CSPtoSAT+minisa) R 26832 26834 26525 0 -1 4194304 1018 0 0 0 50 0 0 0 24 0 1 0 157611007 7639040 961 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134671762 0 0 4096 0 0 0 0 17 0 0 0
/proc/26834/statm: 1865 961 724 52 0 233 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7460

[startup+1.33258 s]
/proc/loadavg: 2.00 1.99 1.83 3/79 26835
/proc/meminfo: memFree=1604920/2055920 swapFree=4184496/4192956
[pid=26834] ppid=26832 vsize=7856 CPUtime=1.31
/proc/26834/stat : 26834 (CSPtoSAT+minisa) R 26832 26834 26525 0 -1 4194304 1126 0 0 0 131 0 0 0 25 0 1 0 157611007 8044544 1069 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134671401 0 0 4096 0 0 0 0 17 0 0 0
/proc/26834/statm: 1964 1069 724 52 0 332 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 7856

[startup+2.96977 s]
/proc/loadavg: 2.00 1.99 1.83 3/79 26835
/proc/meminfo: memFree=1604408/2055920 swapFree=4184496/4192956
[pid=26834] ppid=26832 vsize=8384 CPUtime=2.94
/proc/26834/stat : 26834 (CSPtoSAT+minisa) R 26832 26834 26525 0 -1 4194304 1244 0 0 0 293 1 0 0 25 0 1 0 157611007 8585216 1187 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134678251 0 0 4096 0 0 0 0 17 0 0 0
/proc/26834/statm: 2096 1187 724 52 0 464 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 8384

Child status: 0
Real time (s): 5.91828
CPU time (s): 5.87411
CPU user time (s): 5.86011
CPU system time (s): 0.013997
CPU usage (%): 99.2536
Max. virtual memory (cumulated for all children) (KiB): 8912

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.86011
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1393
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= 89

runsolver used 0.011998 s user time and 0.023996 s system time

The end

Launcher Data (download as text)

Begin job on node75 on Sat Jan  6 14:01:56 UTC 2007


IDJOB= 238169
IDBENCH= 6986
FILE ID= node75/238169-1168092116

PBS_JOBID= 3476625

Free space on /tmp= 66544 MiB

BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_09.xml
COMMAND LINE= /tmp/evaluation/238169-1168092116/CSPtoSAT+minisat /tmp/evaluation/238169-1168092116/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-238169-1168092116 -o ROOT/results/node75/solver-238169-1168092116 -C 1800 -M 900  /tmp/evaluation/238169-1168092116/CSPtoSAT+minisat /tmp/evaluation/238169-1168092116/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  9ef226d01e1821b42bf6b4fd1284cb7f

RANDOM SEED= 383394907

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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1606680 kB
Buffers:         12540 kB
Cached:         339256 kB
SwapCached:       2484 kB
Active:         157596 kB
Inactive:       240080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1606680 kB
SwapTotal:     4192956 kB
SwapFree:      4184496 kB
Dirty:            6996 kB
Writeback:           0 kB
Mapped:          55964 kB
Slab:            36460 kB
Committed_AS:  3230356 kB
PageTables:       2060 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= 66544 MiB



End job on node75 on Sat Jan  6 14:02:03 UTC 2007