Trace number 225986

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 12.5501 12.6061

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-47_ext.xml
MD5SUM7ffc72f9e0beeed37d123dab57de4530
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 benchmark2.15367
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)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains...............    0
0.20	c 	variables.............    0
0.20	c 	relations............. 0.46
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
12.60	s SATISFIABLE
12.60	v 27 30 110 156 21 136 135 60 16 119 18 8 121 5 135 163 1 75 0 158 126 164 173 51 131 50 6 5 129 76 37 176 134 179 125 88 44 58 2 109
12.60	d          SAT      4552 BTS        12 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/node21/watcher-225986-1168274139 -o ROOT/results/node21/solver-225986-1168274139 -C 1800 -M 900 /tmp/evaluation/225986-1168274139/mistral/bin/solver /tmp/evaluation/225986-1168274139/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: 1.39 1.15 1.33 5/94 25592
/proc/meminfo: memFree=729760/2055920 swapFree=4156316/4192956
[pid=25591] ppid=25589 vsize=540 CPUtime=0
/proc/25591/stat : 25591 (solver) R 25589 25591 25245 0 -1 4194304 41 0 0 0 0 0 0 0 25 0 1 0 175808463 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 8438564 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/25591/statm: 135 26 21 92 0 18 0

[startup+0.104311 s]
/proc/loadavg: 1.39 1.15 1.33 5/94 25592
/proc/meminfo: memFree=729760/2055920 swapFree=4156316/4192956
[pid=25591] ppid=25589 vsize=8108 CPUtime=0.09
/proc/25591/stat : 25591 (solver) R 25589 25591 25245 0 -1 4194304 1100 0 0 0 9 0 0 0 18 0 1 0 175808463 8302592 1068 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 9518734 0 0 4096 0 0 0 0 17 1 0 0
/proc/25591/statm: 2027 1068 692 92 0 371 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8108

[startup+0.51337 s]
/proc/loadavg: 1.39 1.15 1.33 5/94 25592
/proc/meminfo: memFree=729760/2055920 swapFree=4156316/4192956
[pid=25591] ppid=25589 vsize=12744 CPUtime=0.49
/proc/25591/stat : 25591 (solver) R 25589 25591 25245 0 -1 4194304 2277 0 0 0 49 0 0 0 22 0 1 0 175808463 13049856 2245 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 8871661 0 0 4096 0 0 0 0 17 1 0 0
/proc/25591/statm: 3186 2245 706 92 0 1530 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 12744

[startup+1.33952 s]
/proc/loadavg: 1.52 1.18 1.34 3/94 25592
/proc/meminfo: memFree=722912/2055920 swapFree=4156316/4192956
[pid=25591] ppid=25589 vsize=12744 CPUtime=1.31
/proc/25591/stat : 25591 (solver) R 25589 25591 25245 0 -1 4194304 2280 0 0 0 131 0 0 0 25 0 1 0 175808463 13049856 2248 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134722188 0 0 4096 0 0 0 0 17 1 0 0
/proc/25591/statm: 3186 2248 709 92 0 1530 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 12744

[startup+2.97683 s]
/proc/loadavg: 1.52 1.18 1.34 3/94 25592
/proc/meminfo: memFree=722592/2055920 swapFree=4156316/4192956
[pid=25591] ppid=25589 vsize=12744 CPUtime=2.93
/proc/25591/stat : 25591 (solver) R 25589 25591 25245 0 -1 4194304 2280 0 0 0 293 0 0 0 25 0 1 0 175808463 13049856 2248 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790632 0 0 4096 0 0 0 0 17 1 0 0
/proc/25591/statm: 3186 2248 709 92 0 1530 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 12744

[startup+6.26246 s]
/proc/loadavg: 1.52 1.18 1.34 3/87 25593
/proc/meminfo: memFree=791832/2055920 swapFree=4156316/4192956
[pid=25591] ppid=25589 vsize=12744 CPUtime=6.21
/proc/25591/stat : 25591 (solver) R 25589 25591 25245 0 -1 4194304 2280 0 0 0 621 0 0 0 25 0 1 0 175808463 13049856 2248 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134722184 0 0 4096 0 0 0 0 17 0 0 0
/proc/25591/statm: 3186 2248 709 92 0 1530 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 12744

Child status: 0
Real time (s): 12.6061
CPU time (s): 12.5501
CPU user time (s): 12.5401
CPU system time (s): 0.009998
CPU usage (%): 99.5554
Max. virtual memory (cumulated for all children) (KiB): 12744

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.5401
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2290
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= 319

runsolver used 0.019996 s user time and 0.043993 s system time

The end

Launcher Data (download as text)

Begin job on node21 on Mon Jan  8 16:35:39 UTC 2007


IDJOB= 225986
IDBENCH= 5917
FILE ID= node21/225986-1168274139

PBS_JOBID= 3483267

Free space on /tmp= 66546 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-47_ext.xml
COMMAND LINE= /tmp/evaluation/225986-1168274139/mistral/bin/solver /tmp/evaluation/225986-1168274139/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-225986-1168274139 -o ROOT/results/node21/solver-225986-1168274139 -C 1800 -M 900  /tmp/evaluation/225986-1168274139/mistral/bin/solver /tmp/evaluation/225986-1168274139/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  7ffc72f9e0beeed37d123dab57de4530

RANDOM SEED= 883096808

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		: 3000.261
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		: 3000.261
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:        730240 kB
Buffers:         13764 kB
Cached:        1127352 kB
SwapCached:       2304 kB
Active:         715196 kB
Inactive:       557628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        730240 kB
SwapTotal:     4192956 kB
SwapFree:      4156316 kB
Dirty:           19280 kB
Writeback:           0 kB
Mapped:         149544 kB
Slab:            37472 kB
Committed_AS:  4374580 kB
PageTables:       2440 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 node21 on Mon Jan  8 16:35:52 UTC 2007