Trace number 1100755

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
MDG-noprobe 2008-06-27UNSAT 1.15982 1.17532

DiagnosticValue
ASSIGNMENTS1362
CHECKS279786

General information on the benchmark

Namecsp/tightness0.9/
normalized-rand-2-40-180-84-900-28_ext.xml
MD5SUMafa8a1cb06fb6727c4ad99ca3233ddf8
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 benchmark1.07084
Satisfiable
(Un)Satisfiability was proved
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)

0.00/0.01	c mistral-prime version 1.313
1.08/1.15	s UNSATISFIABLE
1.08/1.15	d CHECKS 279786
1.08/1.15	d ASSIGNMENTS 1362

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1100755-1215287670/watcher-1100755-1215287670 -o /tmp/evaluation-result-1100755-1215287670/solver-1100755-1215287670 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1100755-1215287670.xml -heu dom/wdeg -res no 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.98 2.00 2.12 4/81 3452
/proc/meminfo: memFree=1718744/2055924 swapFree=4180432/4192956
[pid=3452] ppid=3450 vsize=18572 CPUtime=0
/proc/3452/stat : 3452 (runsolver) R 3450 3452 30588 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 2007742329 19017728 292 996147200 4194304 4296836 548682068448 18446744073709551615 268582841639 0 0 4096 24578 0 0 0 17 1 0 0
/proc/3452/statm: 4643 292 257 25 0 2626 0

[startup+0.116358 s]
/proc/loadavg: 1.98 2.00 2.12 4/81 3452
/proc/meminfo: memFree=1718744/2055924 swapFree=4180432/4192956
[pid=3452] ppid=3450 vsize=6852 CPUtime=0.1
/proc/3452/stat : 3452 (xsolve) R 3450 3452 30588 0 -1 4194304 1006 0 0 0 10 0 0 0 20 0 1 0 2007742329 7016448 972 996147200 134512640 135239859 4294956208 18446744073709551615 134643600 0 0 4096 0 0 0 0 17 1 0 0
/proc/3452/statm: 1713 972 350 177 0 616 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 6852

[startup+0.202376 s]
/proc/loadavg: 1.98 2.00 2.12 4/81 3452
/proc/meminfo: memFree=1718744/2055924 swapFree=4180432/4192956
[pid=3452] ppid=3450 vsize=8708 CPUtime=0.19
/proc/3452/stat : 3452 (xsolve) R 3450 3452 30588 0 -1 4194304 1472 0 0 0 18 1 0 0 20 0 1 0 2007742329 8916992 1438 996147200 134512640 135239859 4294956208 18446744073709551615 134524339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3452/statm: 2177 1438 350 177 0 1080 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 8708

[startup+0.302399 s]
/proc/loadavg: 1.98 2.00 2.12 4/81 3452
/proc/meminfo: memFree=1718744/2055924 swapFree=4180432/4192956
[pid=3452] ppid=3450 vsize=11488 CPUtime=0.28
/proc/3452/stat : 3452 (xsolve) R 3450 3452 30588 0 -1 4194304 2197 0 0 0 27 1 0 0 21 0 1 0 2007742329 11763712 2163 996147200 134512640 135239859 4294956208 18446744073709551615 135019173 0 0 4096 0 0 0 0 17 1 0 0
/proc/3452/statm: 2872 2163 386 177 0 1775 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 11488

[startup+0.702475 s]
/proc/loadavg: 1.98 2.00 2.12 4/81 3452
/proc/meminfo: memFree=1718744/2055924 swapFree=4180432/4192956
[pid=3452] ppid=3450 vsize=11496 CPUtime=0.68
/proc/3452/stat : 3452 (xsolve) R 3450 3452 30588 0 -1 4194304 2199 0 0 0 67 1 0 0 25 0 1 0 2007742329 11771904 2165 996147200 134512640 135239859 4294956208 18446744073709551615 135019121 0 0 4096 0 0 0 0 17 1 0 0
/proc/3452/statm: 2874 2165 386 177 0 1777 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 11496

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

[startup+0.802494 s]
/proc/loadavg: 1.98 2.00 2.12 4/81 3452
/proc/meminfo: memFree=1718744/2055924 swapFree=4180432/4192956
[pid=3452] ppid=3450 vsize=11500 CPUtime=0.78
/proc/3452/stat : 3452 (xsolve) R 3450 3452 30588 0 -1 4194304 2200 0 0 0 77 1 0 0 25 0 1 0 2007742329 11776000 2166 996147200 134512640 135239859 4294956208 18446744073709551615 135019113 0 0 4096 0 0 0 0 17 1 0 0
/proc/3452/statm: 2875 2166 386 177 0 1778 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 11500

[startup+1.00154 s]
/proc/loadavg: 1.98 2.00 2.12 4/81 3452
/proc/meminfo: memFree=1718744/2055924 swapFree=4180432/4192956
[pid=3452] ppid=3450 vsize=11504 CPUtime=0.98
/proc/3452/stat : 3452 (xsolve) R 3450 3452 30588 0 -1 4194304 2201 0 0 0 97 1 0 0 25 0 1 0 2007742329 11780096 2167 996147200 134512640 135239859 4294956208 18446744073709551615 135019103 0 0 4096 0 0 0 0 17 1 0 0
/proc/3452/statm: 2876 2167 386 177 0 1779 0
Current children cumulated CPU time (s) 0.98
Current children cumulated vsize (KiB) 11504

[startup+1.10155 s]
/proc/loadavg: 1.98 2.00 2.12 3/82 3453
/proc/meminfo: memFree=1711504/2055924 swapFree=4180432/4192956
[pid=3452] ppid=3450 vsize=11504 CPUtime=1.08
/proc/3452/stat : 3452 (xsolve) R 3450 3452 30588 0 -1 4194304 2201 0 0 0 107 1 0 0 25 0 1 0 2007742329 11780096 2167 996147200 134512640 135239859 4294956208 18446744073709551615 135019188 0 0 4096 0 0 0 0 17 1 0 0
/proc/3452/statm: 2876 2167 386 177 0 1779 0
Current children cumulated CPU time (s) 1.08
Current children cumulated vsize (KiB) 11504

Child status: 0
Real time (s): 1.17532
CPU time (s): 1.15982
CPU user time (s): 1.14283
CPU system time (s): 0.016997
CPU usage (%): 98.6812
Max. virtual memory (cumulated for all children) (KiB): 11504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.14283
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= 2217
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= 7
involuntary context switches= 52

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node6 at 2008-07-05 21:54:31
IDJOB=1100755
IDBENCH=59969
IDSOLVER=343
FILE ID=node6/1100755-1215287670
PBS_JOBID= 7882221
Free space on /tmp= 66488 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/tightness0.9/normalized-rand-2-40-180-84-900-28_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dom/wdeg -res no 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1100755-1215287670/watcher-1100755-1215287670 -o /tmp/evaluation-result-1100755-1215287670/solver-1100755-1215287670 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1100755-1215287670.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= afa8a1cb06fb6727c4ad99ca3233ddf8
RANDOM SEED=2050318197

node6.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		: 3000.265
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		: 3000.265
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:      2055924 kB
MemFree:       1719224 kB
Buffers:         55628 kB
Cached:         193788 kB
SwapCached:       6536 kB
Active:         187244 kB
Inactive:        97760 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1719224 kB
SwapTotal:     4192956 kB
SwapFree:      4180432 kB
Dirty:            3008 kB
Writeback:           0 kB
Mapped:          51820 kB
Slab:            36680 kB
Committed_AS:  3456620 kB
PageTables:       2024 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= 66488 MiB
End job on node6 at 2008-07-05 21:54:32