Trace number 2092237

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 1.545UNSAT 8.5757 8.5863

DiagnosticValue
ASSIGNMENTS36816
CHECKS10969700
NODES36816

General information on the benchmark

Namecsp/tightness0.8/
normalized-rand-2-40-80-103-800-36_ext.xml
MD5SUMad0e047401619f0ea08a05a0cd64eea9
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 benchmark8.5757
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints103
Maximum constraint arity2
Maximum domain size80
Number of constraints which are defined in extension103
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.18/0.21	c mistral version 1.545
8.48/8.57	s UNSATISFIABLE
8.48/8.57	d CHECKS 10969682
8.48/8.57	d ASSIGNMENTS 36816
8.48/8.57	d NODES 36816 BACKTRACKS 36816 FAILURES 36817 RUNTIME 8.45 TOTALTIME 8.55 NODES/s 4356.92 CHECKS/s 1.29819e+06

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2092237-1247397198/watcher-2092237-1247397198 -o /tmp/evaluation-result-2092237-1247397198/solver-2092237-1247397198 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2092237-1247397198.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 2.13 2.08 2.01 4/81 28751
/proc/meminfo: memFree=1839192/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=18576 CPUtime=0
/proc/28751/stat : 28751 (runsolver) R 28749 28751 28361 0 -1 4194368 15 0 0 0 0 0 0 0 21 0 1 0 26786163 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 238487661863 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/28751/statm: 4644 284 249 26 0 2626 0

[startup+0.0517191 s]
/proc/loadavg: 2.13 2.08 2.01 4/81 28751
/proc/meminfo: memFree=1839192/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=5868 CPUtime=0.03
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 678 0 0 0 3 0 0 0 18 0 1 0 26786163 6008832 657 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 1467 657 358 29 0 282 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5868

[startup+0.102725 s]
/proc/loadavg: 2.13 2.08 2.01 4/81 28751
/proc/meminfo: memFree=1839192/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=7188 CPUtime=0.08
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1008 0 0 0 8 0 0 0 18 0 1 0 26786163 7360512 987 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 1797 987 358 29 0 612 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7188

[startup+0.301764 s]
/proc/loadavg: 2.13 2.08 2.01 4/81 28751
/proc/meminfo: memFree=1839192/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=8244 CPUtime=0.28
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1301 0 0 0 28 0 0 0 19 0 1 0 26786163 8441856 1280 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264226 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 2061 1280 412 29 0 876 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 8244

[startup+0.702841 s]
/proc/loadavg: 2.13 2.08 2.01 4/81 28751
/proc/meminfo: memFree=1839192/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=8244 CPUtime=0.68
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1301 0 0 0 68 0 0 0 23 0 1 0 26786163 8441856 1280 996147200 1448431616 1448550632 4294956208 18446744073709551615 135258176 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 2061 1280 412 29 0 876 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 8244

[startup+1.502 s]
/proc/loadavg: 2.13 2.08 2.01 3/82 28752
/proc/meminfo: memFree=1835600/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=8244 CPUtime=1.48
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1302 0 0 0 148 0 0 0 25 0 1 0 26786163 8441856 1281 996147200 1448431616 1448550632 4294956208 18446744073709551615 135269211 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 2061 1281 412 29 0 876 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 8244

[startup+3.10131 s]
/proc/loadavg: 2.13 2.08 2.01 3/82 28752
/proc/meminfo: memFree=1835600/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=8244 CPUtime=3.08
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1302 0 0 0 308 0 0 0 25 0 1 0 26786163 8441856 1281 996147200 1448431616 1448550632 4294956208 18446744073709551615 135258200 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 2061 1281 412 29 0 876 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 8244

[startup+6.30193 s]
/proc/loadavg: 2.12 2.08 2.01 3/82 28752
/proc/meminfo: memFree=1835536/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=8244 CPUtime=6.28
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1302 0 0 0 628 0 0 0 25 0 1 0 26786163 8441856 1281 996147200 1448431616 1448550632 4294956208 18446744073709551615 135258040 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 2061 1281 412 29 0 876 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 8244

Solver just ended. Dumping a history of the last processes samples

[startup+7.90124 s]
/proc/loadavg: 2.11 2.08 2.01 3/82 28752
/proc/meminfo: memFree=1835536/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=8244 CPUtime=7.88
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1302 0 0 0 788 0 0 0 25 0 1 0 26786163 8441856 1281 996147200 1448431616 1448550632 4294956208 18446744073709551615 135258210 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 2061 1281 412 29 0 876 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 8244

[startup+8.30131 s]
/proc/loadavg: 2.11 2.08 2.01 3/82 28752
/proc/meminfo: memFree=1835536/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=8244 CPUtime=8.28
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1302 0 0 0 828 0 0 0 25 0 1 0 26786163 8441856 1281 996147200 1448431616 1448550632 4294956208 18446744073709551615 134814488 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 2061 1281 412 29 0 876 0
Current children cumulated CPU time (s) 8.28
Current children cumulated vsize (KiB) 8244

[startup+8.50135 s]
/proc/loadavg: 2.11 2.08 2.01 3/82 28752
/proc/meminfo: memFree=1835536/2055920 swapFree=4192812/4192956
[pid=28751] ppid=28749 vsize=8244 CPUtime=8.48
/proc/28751/stat : 28751 (ld-linux.so.2) R 28749 28751 28361 0 -1 4194304 1302 0 0 0 848 0 0 0 25 0 1 0 26786163 8441856 1281 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264243 0 0 4096 0 0 0 0 17 1 0 0
/proc/28751/statm: 2061 1281 412 29 0 876 0
Current children cumulated CPU time (s) 8.48
Current children cumulated vsize (KiB) 8244

Child status: 0
Real time (s): 8.5863
CPU time (s): 8.5757
CPU user time (s): 8.5647
CPU system time (s): 0.010998
CPU usage (%): 99.8765
Max. virtual memory (cumulated for all children) (KiB): 8244

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.5647
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1338
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= 24
involuntary context switches= 190

runsolver used 0.009998 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node23 at 2009-07-12 13:13:18
IDJOB=2092237
IDBENCH=60307
IDSOLVER=769
FILE ID=node23/2092237-1247397198
PBS_JOBID= 9507417
Free space on /tmp= 66360 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/tightness0.8/normalized-rand-2-40-80-103-800-36_ext.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2092237-1247397198/watcher-2092237-1247397198 -o /tmp/evaluation-result-2092237-1247397198/solver-2092237-1247397198 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2092237-1247397198.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ad0e047401619f0ea08a05a0cd64eea9
RANDOM SEED=546474588

node23.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.277
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		: 3000.277
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:       1839672 kB
Buffers:         30556 kB
Cached:          98984 kB
SwapCached:          0 kB
Active:         119296 kB
Inactive:        44900 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1839672 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1932 kB
Writeback:           0 kB
Mapped:          54944 kB
Slab:            37196 kB
Committed_AS:   246580 kB
PageTables:       1868 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= 66360 MiB
End job on node23 at 2009-07-12 13:13:26