Trace number 226014

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 18.4932 18.6518

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-15_ext.xml
MD5SUMb0f833c6013824edaf84bd63c190d30c
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.14952
SatisfiableNO
(Un)Satisfiability was provedNO
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
18.64	s UNSATISFIABLE
18.64	d        UNSAT      2737 BTS        18 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/node13/watcher-226014-1168274230 -o ROOT/results/node13/solver-226014-1168274230 -C 1800 -M 900 /tmp/evaluation/226014-1168274230/mistral/bin/solver /tmp/evaluation/226014-1168274230/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: 1.92 1.98 1.99 5/86 15514
/proc/meminfo: memFree=1617864/2055920 swapFree=4192812/4192956
[pid=15513] ppid=15511 vsize=540 CPUtime=0
/proc/15513/stat : 15513 (solver) R 15511 15513 15269 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 175818093 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11879204 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/15513/statm: 135 26 21 92 0 18 0

[startup+0.104235 s]
/proc/loadavg: 1.92 1.98 1.99 5/86 15514
/proc/meminfo: memFree=1617864/2055920 swapFree=4192812/4192956
[pid=15513] ppid=15511 vsize=8112 CPUtime=0.09
/proc/15513/stat : 15513 (solver) R 15511 15513 15269 0 -1 4194304 1099 0 0 0 9 0 0 0 18 0 1 0 175818093 8306688 1067 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134598613 0 0 4096 0 0 0 0 17 1 0 0
/proc/15513/statm: 2028 1067 692 92 0 372 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8112

[startup+0.516298 s]
/proc/loadavg: 1.92 1.98 1.99 5/86 15514
/proc/meminfo: memFree=1617864/2055920 swapFree=4192812/4192956
[pid=15513] ppid=15511 vsize=12756 CPUtime=0.49
/proc/15513/stat : 15513 (solver) R 15511 15513 15269 0 -1 4194304 2281 0 0 0 49 0 0 0 22 0 1 0 175818093 13062144 2249 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 12308469 0 0 4096 0 0 0 0 17 1 0 0
/proc/15513/statm: 3189 2249 706 92 0 1533 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 12756

[startup+1.3414 s]
/proc/loadavg: 1.92 1.98 1.99 3/86 15514
/proc/meminfo: memFree=1604424/2055920 swapFree=4192812/4192956
[pid=15513] ppid=15511 vsize=12756 CPUtime=1.31
/proc/15513/stat : 15513 (solver) R 15511 15513 15269 0 -1 4194304 2284 0 0 0 131 0 0 0 25 0 1 0 175818093 13062144 2252 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637079 0 0 4096 0 0 0 0 17 1 0 0
/proc/15513/statm: 3189 2252 709 92 0 1533 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 12756

[startup+2.97862 s]
/proc/loadavg: 1.92 1.98 1.99 3/86 15514
/proc/meminfo: memFree=1597256/2055920 swapFree=4192812/4192956
[pid=15513] ppid=15511 vsize=12756 CPUtime=2.93
/proc/15513/stat : 15513 (solver) R 15511 15513 15269 0 -1 4194304 2284 0 0 0 293 0 0 0 25 0 1 0 175818093 13062144 2252 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790691 0 0 4096 0 0 0 0 17 1 0 0
/proc/15513/statm: 3189 2252 709 92 0 1533 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 12756

[startup+6.25806 s]
/proc/loadavg: 1.93 1.98 1.99 3/86 15514
/proc/meminfo: memFree=1577480/2055920 swapFree=4192812/4192956
[pid=15513] ppid=15511 vsize=12756 CPUtime=6.19
/proc/15513/stat : 15513 (solver) R 15511 15513 15269 0 -1 4194304 2284 0 0 0 618 1 0 0 25 0 1 0 175818093 13062144 2252 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637273 0 0 4096 0 0 0 0 17 1 0 0
/proc/15513/statm: 3189 2252 709 92 0 1533 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 12756

[startup+12.7209 s]
/proc/loadavg: 1.94 1.98 1.99 3/86 15514
/proc/meminfo: memFree=1620304/2055920 swapFree=4192812/4192956
[pid=15513] ppid=15511 vsize=12756 CPUtime=12.6
/proc/15513/stat : 15513 (solver) R 15511 15513 15269 0 -1 4194304 2284 0 0 0 1259 1 0 0 25 0 1 0 175818093 13062144 2252 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790355 0 0 4096 0 0 0 0 17 1 0 0
/proc/15513/statm: 3189 2252 709 92 0 1533 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 12756

Child status: 0
Real time (s): 18.6518
CPU time (s): 18.4932
CPU user time (s): 18.4762
CPU system time (s): 0.016997
CPU usage (%): 99.1498
Max. virtual memory (cumulated for all children) (KiB): 12760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.4762
system time used= 0.016997
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= 783

runsolver used 0.026995 s user time and 0.047992 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Mon Jan  8 16:37:11 UTC 2007


IDJOB= 226014
IDBENCH= 5921
FILE ID= node13/226014-1168274230

PBS_JOBID= 3483049

Free space on /tmp= 66322 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-15_ext.xml
COMMAND LINE= /tmp/evaluation/226014-1168274230/mistral/bin/solver /tmp/evaluation/226014-1168274230/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-226014-1168274230 -o ROOT/results/node13/solver-226014-1168274230 -C 1800 -M 900  /tmp/evaluation/226014-1168274230/mistral/bin/solver /tmp/evaluation/226014-1168274230/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  b0f833c6013824edaf84bd63c190d30c

RANDOM SEED= 334849454

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		: 3000.247
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		: 3000.247
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:       1618536 kB
Buffers:         59344 kB
Cached:         235572 kB
SwapCached:          0 kB
Active:         195096 kB
Inactive:       182464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1618536 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5004 kB
Writeback:           0 kB
Mapped:         102280 kB
Slab:            44388 kB
Committed_AS:  4760684 kB
PageTables:       2580 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= 66322 MiB



End job on node13 on Mon Jan  8 16:37:30 UTC 2007