Trace number 226552

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 8.63369 8.63829

General information on the benchmark

Nametightness/tightness0.65/
rand-2-40-40-135-650-39_ext.xml
MD5SUMeeadcd7da8993c9ab4c507857701b6ae
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 benchmark1.88971
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables40
Number of constraints135
Maximum constraint arity2
Maximum domain size40
Number of constraints which are defined in extension135
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............. 0.13
0.14	c 	constraints...........    0
0.15	c Allocating memory
0.15	c 
0.15	c time limit = -1
0.15	c heuristic = dom/wdeg
0.15	c restart policy = No restart
0.15	c 
0.15	c Solving
0.15	c
8.63	s UNSATISFIABLE
8.63	d        UNSAT     12177 BTS       8.5 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/node39/watcher-226552-1168275845 -o ROOT/results/node39/solver-226552-1168275845 -C 1800 -M 900 /tmp/evaluation/226552-1168275845/mistral/bin/solver /tmp/evaluation/226552-1168275845/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: 1.05 1.01 1.00 4/65 23523
/proc/meminfo: memFree=667128/2055920 swapFree=4187312/4192956
[pid=23522] ppid=23520 vsize=6792 CPUtime=0
/proc/23522/stat : 23522 (solver) R 23520 23522 22500 0 -1 4194304 400 0 0 0 0 0 0 0 18 0 1 0 175984163 6955008 380 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11062136 0 0 4096 0 0 0 0 17 1 0 0
/proc/23522/statm: 1698 382 357 92 0 30 0

[startup+0.107489 s]
/proc/loadavg: 1.05 1.01 1.00 4/65 23523
/proc/meminfo: memFree=667128/2055920 swapFree=4187312/4192956
[pid=23522] ppid=23520 vsize=8236 CPUtime=0.1
/proc/23522/stat : 23522 (solver) R 23520 23522 22500 0 -1 4194304 1111 0 0 0 10 0 0 0 18 0 1 0 175984163 8433664 1079 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11527803 0 0 4096 0 0 0 0 17 1 0 0
/proc/23522/statm: 2059 1079 692 92 0 403 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 8236

[startup+0.515525 s]
/proc/loadavg: 1.05 1.01 1.00 4/65 23523
/proc/meminfo: memFree=667128/2055920 swapFree=4187312/4192956
[pid=23522] ppid=23520 vsize=8632 CPUtime=0.5
/proc/23522/stat : 23522 (solver) R 23520 23522 22500 0 -1 4194304 1236 0 0 0 50 0 0 0 21 0 1 0 175984163 8839168 1204 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637187 0 0 4096 0 0 0 0 17 1 0 0
/proc/23522/statm: 2158 1204 709 92 0 502 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8632

[startup+1.3356 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 23523
/proc/meminfo: memFree=665016/2055920 swapFree=4187312/4192956
[pid=23522] ppid=23520 vsize=8632 CPUtime=1.32
/proc/23522/stat : 23522 (solver) R 23520 23522 22500 0 -1 4194304 1236 0 0 0 132 0 0 0 25 0 1 0 175984163 8839168 1204 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637546 0 0 4096 0 0 0 0 17 1 0 0
/proc/23522/statm: 2158 1204 709 92 0 502 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 8632

[startup+2.97175 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 23523
/proc/meminfo: memFree=665016/2055920 swapFree=4187312/4192956
[pid=23522] ppid=23520 vsize=8632 CPUtime=2.96
/proc/23522/stat : 23522 (solver) R 23520 23522 22500 0 -1 4194304 1236 0 0 0 296 0 0 0 25 0 1 0 175984163 8839168 1204 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790402 0 0 4096 0 0 0 0 17 1 0 0
/proc/23522/statm: 2158 1204 709 92 0 502 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 8632

[startup+6.25105 s]
/proc/loadavg: 1.05 1.01 1.00 2/65 23523
/proc/meminfo: memFree=665016/2055920 swapFree=4187312/4192956
[pid=23522] ppid=23520 vsize=8632 CPUtime=6.24
/proc/23522/stat : 23522 (solver) R 23520 23522 22500 0 -1 4194304 1236 0 0 0 624 0 0 0 25 0 1 0 175984163 8839168 1204 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134722272 0 0 4096 0 0 0 0 17 1 0 0
/proc/23522/statm: 2158 1204 709 92 0 502 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 8632

Child status: 0
Real time (s): 8.63829
CPU time (s): 8.63369
CPU user time (s): 8.62569
CPU system time (s): 0.007998
CPU usage (%): 99.9468
Max. virtual memory (cumulated for all children) (KiB): 8632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.62569
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= 1246
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= 24

runsolver used 0.012998 s user time and 0.017997 s system time

The end

Launcher Data (download as text)

Begin job on node39 on Mon Jan  8 17:04:06 UTC 2007


IDJOB= 226552
IDBENCH= 5981
FILE ID= node39/226552-1168275845

PBS_JOBID= 3483223

Free space on /tmp= 66560 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.65/rand-2-40-40-135-650-39_ext.xml
COMMAND LINE= /tmp/evaluation/226552-1168275845/mistral/bin/solver /tmp/evaluation/226552-1168275845/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-226552-1168275845 -o ROOT/results/node39/solver-226552-1168275845 -C 1800 -M 900  /tmp/evaluation/226552-1168275845/mistral/bin/solver /tmp/evaluation/226552-1168275845/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  eeadcd7da8993c9ab4c507857701b6ae

RANDOM SEED= 342407643

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		: 3000.236
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		: 3000.236
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:        667544 kB
Buffers:          7148 kB
Cached:        1318968 kB
SwapCached:        904 kB
Active:         810560 kB
Inactive:       526608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        667544 kB
SwapTotal:     4192956 kB
SwapFree:      4187312 kB
Dirty:            3640 kB
Writeback:           0 kB
Mapped:          18780 kB
Slab:            37216 kB
Committed_AS:  3667888 kB
PageTables:       1412 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= 66560 MiB



End job on node39 on Mon Jan  8 17:04:14 UTC 2007