Trace number 225647

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 2006-12-04SAT 2.56561 2.56882

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-55_ext.xml
MD5SUMd385ac3135ede240f29e39664238adde
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.3278
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
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.............    0
0.01	c 	relations............. 0.47
0.48	c 	constraints........... 0.03
0.51	c Allocating memory
0.51	c 
0.51	c time limit = -1
0.51	c heuristic = dom/wdeg
0.51	c restart policy = No restart
0.51	c 
0.51	c Solving
0.51	c
2.56	s SATISFIABLE
2.56	v 52 39 151 101 65 61 163 102 113 64 54 0 171 73 55 173 119 7 79 104 67 76 137 2 177 118 67 173 4 111 90 5 58 50 14 41 23 6 70 66
2.56	d          SAT       652 BTS         2 s

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node29/watcher-225647-1168272995 -o ROOT/results/node29/solver-225647-1168272995 -C 1800 -M 900 /tmp/evaluation/225647-1168272995/mistral/bin/solver /tmp/evaluation/225647-1168272995/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: 0.92 0.98 1.05 4/78 20587
/proc/meminfo: memFree=676800/2055920 swapFree=4191880/4192956
[pid=20586] ppid=20584 vsize=6792 CPUtime=0
/proc/20586/stat : 20586 (solver) R 20584 20586 19863 0 -1 4194304 400 0 0 0 0 0 0 0 18 0 1 0 175693689 6955008 380 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4093123 0 0 4096 0 0 0 0 17 1 0 0
/proc/20586/statm: 1698 380 356 92 0 30 0

[startup+0.10294 s]
/proc/loadavg: 0.92 0.98 1.05 4/78 20587
/proc/meminfo: memFree=676800/2055920 swapFree=4191880/4192956
[pid=20586] ppid=20584 vsize=8244 CPUtime=0.09
/proc/20586/stat : 20586 (solver) R 20584 20586 19863 0 -1 4194304 1115 0 0 0 9 0 0 0 18 0 1 0 175693689 8441856 1083 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4156455332 0 0 4096 0 0 0 0 17 1 0 0
/proc/20586/statm: 2061 1083 692 92 0 405 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8244

[startup+0.513966 s]
/proc/loadavg: 0.92 0.98 1.05 4/78 20587
/proc/meminfo: memFree=676800/2055920 swapFree=4191880/4192956
[pid=20586] ppid=20584 vsize=12756 CPUtime=0.5
/proc/20586/stat : 20586 (solver) R 20584 20586 19863 0 -1 4194304 2282 0 0 0 49 1 0 0 22 0 1 0 175693689 13062144 2250 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4558943 0 0 4096 0 0 0 0 17 1 0 0
/proc/20586/statm: 3189 2250 706 92 0 1533 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 12756

[startup+1.33402 s]
/proc/loadavg: 0.93 0.98 1.05 2/78 20587
/proc/meminfo: memFree=670592/2055920 swapFree=4191880/4192956
[pid=20586] ppid=20584 vsize=12756 CPUtime=1.32
/proc/20586/stat : 20586 (solver) R 20584 20586 19863 0 -1 4194304 2285 0 0 0 131 1 0 0 25 0 1 0 175693689 13062144 2253 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637122 0 0 4096 0 0 0 0 17 1 0 0
/proc/20586/statm: 3189 2253 709 92 0 1533 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 12756

Child status: 0
Real time (s): 2.56882
CPU time (s): 2.56561
CPU user time (s): 2.55161
CPU system time (s): 0.013997
CPU usage (%): 99.8749
Max. virtual memory (cumulated for all children) (KiB): 12756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.55161
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= 2295
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= 13
involuntary context switches= 52

runsolver used 0.005999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node29 on Mon Jan  8 16:16:36 UTC 2007


IDJOB= 225647
IDBENCH= 5883
FILE ID= node29/225647-1168272995

PBS_JOBID= 3482951

Free space on /tmp= 66556 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-55_ext.xml
COMMAND LINE= /tmp/evaluation/225647-1168272995/mistral/bin/solver /tmp/evaluation/225647-1168272995/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-225647-1168272995 -o ROOT/results/node29/solver-225647-1168272995 -C 1800 -M 900  /tmp/evaluation/225647-1168272995/mistral/bin/solver /tmp/evaluation/225647-1168272995/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  d385ac3135ede240f29e39664238adde

RANDOM SEED= 409474

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		: 3000.241
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		: 3000.241
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:        677216 kB
Buffers:         12248 kB
Cached:        1259700 kB
SwapCached:        264 kB
Active:         797140 kB
Inactive:       528780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        677216 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            4892 kB
Writeback:           0 kB
Mapped:          71700 kB
Slab:            38124 kB
Committed_AS:  3813860 kB
PageTables:       2000 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= 66556 MiB



End job on node29 on Mon Jan  8 16:16:39 UTC 2007