Trace number 193436

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 0.304952 0.311202

General information on the benchmark

Nameehi/ehi-85/
ehi-85-297-47_ext.xml
MD5SUM32fdd9f96ad254b722041a5b86a5ff03
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 benchmark0.092985
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables297
Number of constraints4103
Maximum constraint arity2
Maximum domain size7
Number of constraints which are defined in extension4103
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
0.02	c 	constraints........... 0.16
0.18	c Allocating memory
0.18	c 
0.18	c time limit = -1
0.18	c heuristic = dom/wdeg
0.18	c restart policy = No restart
0.18	c 
0.18	c Solving
0.18	c
0.29	s UNSATISFIABLE
0.29	d        UNSAT        97 BTS      0.11 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/node33/watcher-193436-1168098553 -o ROOT/results/node33/solver-193436-1168098553 -C 1800 -M 900 /tmp/evaluation/193436-1168098553/mistral/bin/solver /tmp/evaluation/193436-1168098553/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: 0.04 0.21 0.51 4/68 16558
/proc/meminfo: memFree=1381288/2055920 swapFree=4192224/4192956
[pid=16557] ppid=16555 vsize=6792 CPUtime=0
/proc/16557/stat : 16557 (solver) R 16555 16557 16295 0 -1 4194304 423 0 0 0 0 0 0 0 18 0 1 0 158250917 6955008 402 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 10916127 0 0 4096 0 0 0 0 17 1 0 0
/proc/16557/statm: 1698 402 363 92 0 30 0

[startup+0.107833 s]
/proc/loadavg: 0.04 0.21 0.51 4/68 16558
/proc/meminfo: memFree=1381288/2055920 swapFree=4192224/4192956
[pid=16557] ppid=16555 vsize=7708 CPUtime=0.1
/proc/16557/stat : 16557 (solver) R 16555 16557 16295 0 -1 4194304 988 0 0 0 10 0 0 0 18 0 1 0 158250917 7892992 956 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4158469460 0 0 4096 0 0 0 0 17 1 0 0
/proc/16557/statm: 1927 956 698 92 0 271 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7708

Child status: 0
Real time (s): 0.311202
CPU time (s): 0.304952
CPU user time (s): 0.296954
CPU system time (s): 0.007998
CPU usage (%): 97.9917
Max. virtual memory (cumulated for all children) (KiB): 9300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.296954
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1421
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= 1

runsolver used 0.002999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node33 on Sat Jan  6 15:49:22 UTC 2007


IDJOB= 193436
IDBENCH= 3161
FILE ID= node33/193436-1168098553

PBS_JOBID= 3476960

Free space on /tmp= 66551 MiB

BENCH NAME= HOME/pub/bench/CPAI06/ehi/ehi-85/ehi-85-297-47_ext.xml
COMMAND LINE= /tmp/evaluation/193436-1168098553/mistral/bin/solver /tmp/evaluation/193436-1168098553/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-193436-1168098553 -o ROOT/results/node33/solver-193436-1168098553 -C 1800 -M 900  /tmp/evaluation/193436-1168098553/mistral/bin/solver /tmp/evaluation/193436-1168098553/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  32fdd9f96ad254b722041a5b86a5ff03

RANDOM SEED= 686032784

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		: 3000.281
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		: 3000.281
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:       1381808 kB
Buffers:         46808 kB
Cached:         526052 kB
SwapCached:        448 kB
Active:          69904 kB
Inactive:       522976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1381808 kB
SwapTotal:     4192956 kB
SwapFree:      4192224 kB
Dirty:            3288 kB
Writeback:           0 kB
Mapped:          29452 kB
Slab:            67064 kB
Committed_AS:  2722244 kB
PageTables:       1616 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= 66551 MiB



End job on node33 on Sat Jan  6 15:49:41 UTC 2007