Trace number 1104711

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
Minion/Tailor 2008-07-04UNSAT 0.25796 0.275888

General information on the benchmark

Namecsp/pigeons_glb/
normalized-pigeons-50_ext.xml
MD5SUMa930d05f84ab6a3aadd4d73e104d645e
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of constraints1
Maximum constraint arity50
Maximum domain size49
Number of constraints which are defined in extension0
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)alldifferent(1)

Solver Data (download as text)

0.18/0.26	c Finished tailoring XCSP instance to Minion. Starting solving
0.18/0.27	s UNSATISFIABLE

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-1104711-1215199455/watcher-1104711-1215199455 -o /tmp/evaluation-result-1104711-1215199455/solver-1104711-1215199455 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solve.sh HOME/instance-1104711-1215199455.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): 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: 1.00 1.02 1.29 4/73 3049
/proc/meminfo: memFree=1611296/2055920 swapFree=4180884/4192956
[pid=3049] ppid=3047 vsize=5356 CPUtime=0
/proc/3049/stat : 3049 (solve.sh) R 3047 3049 2864 0 -1 4194304 266 0 0 0 0 0 0 0 20 0 1 0 1004350152 5484544 234 996147200 4194304 4889804 548682068832 18446744073709551615 206381312671 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/3049/statm: 1339 234 194 169 0 50 0
[pid=3050] ppid=3049 vsize=5356 CPUtime=0
/proc/3050/stat : 3050 (solve.sh) R 3049 3049 2864 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 1004350153 5484544 234 996147200 4194304 4889804 548682068832 18446744073709551615 206381312671 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/3050/statm: 1339 234 194 169 0 50 0

[startup+0.074187 s]
/proc/loadavg: 1.00 1.02 1.29 4/73 3049
/proc/meminfo: memFree=1611296/2055920 swapFree=4180884/4192956
[pid=3049] ppid=3047 vsize=5356 CPUtime=0
/proc/3049/stat : 3049 (solve.sh) S 3047 3049 2864 0 -1 4194304 285 0 0 0 0 0 0 0 20 0 1 0 1004350152 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3049/statm: 1339 235 195 169 0 50 0
[pid=3050] ppid=3049 vsize=863988 CPUtime=0.05
/proc/3050/stat : 3050 (java) S 3049 3049 2864 0 -1 0 3061 0 1 0 4 1 0 0 18 0 9 0 1004350153 884723712 2569 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/3050/statm: 215997 2569 1558 9 0 210559 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 869344

[startup+0.101185 s]
/proc/loadavg: 1.00 1.02 1.29 4/73 3049
/proc/meminfo: memFree=1611296/2055920 swapFree=4180884/4192956
[pid=3049] ppid=3047 vsize=5356 CPUtime=0
/proc/3049/stat : 3049 (solve.sh) S 3047 3049 2864 0 -1 4194304 285 0 0 0 0 0 0 0 20 0 1 0 1004350152 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3049/statm: 1339 235 195 169 0 50 0
[pid=3050] ppid=3049 vsize=864136 CPUtime=0.08
/proc/3050/stat : 3050 (java) S 3049 3049 2864 0 -1 0 3478 0 1 0 6 2 0 0 18 0 9 0 1004350153 884875264 2930 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/3050/statm: 216034 2930 1713 9 0 210596 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 869492

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

[startup+0.201196 s]
/proc/loadavg: 1.00 1.02 1.29 4/73 3049
/proc/meminfo: memFree=1611296/2055920 swapFree=4180884/4192956
[pid=3049] ppid=3047 vsize=5356 CPUtime=0
/proc/3049/stat : 3049 (solve.sh) S 3047 3049 2864 0 -1 4194304 285 0 0 0 0 0 0 0 20 0 1 0 1004350152 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3049/statm: 1339 235 195 169 0 50 0
[pid=3050] ppid=3049 vsize=864444 CPUtime=0.18
/proc/3050/stat : 3050 (java) S 3049 3049 2864 0 -1 0 4143 0 1 0 16 2 0 0 18 0 9 0 1004350153 885190656 3571 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/3050/statm: 216111 3571 1840 9 0 210673 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 869800

Child status: 0
Real time (s): 0.275888
CPU time (s): 0.25796
CPU user time (s): 0.221966
CPU system time (s): 0.035994
CPU usage (%): 93.5017
Max. virtual memory (cumulated for all children) (KiB): 869800

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.221966
system time used= 0.035994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5385
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 149
involuntary context switches= 106

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node2 at 2008-07-04 21:24:15
IDJOB=1104711
IDBENCH=53909
IDSOLVER=369
FILE ID=node2/1104711-1215199455
PBS_JOBID= 7881690
Free space on /tmp= 66484 MiB

SOLVER NAME= Minion/Tailor 2008-07-04
BENCH NAME= CPAI08/csp/pigeons_glb/normalized-pigeons-50_ext.xml
COMMAND LINE= DIR/solve.sh BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1104711-1215199455/watcher-1104711-1215199455 -o /tmp/evaluation-result-1104711-1215199455/solver-1104711-1215199455 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solve.sh HOME/instance-1104711-1215199455.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= a930d05f84ab6a3aadd4d73e104d645e
RANDOM SEED=1843326994

node2.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		: 3000.236
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:       1611776 kB
Buffers:         72976 kB
Cached:         289336 kB
SwapCached:       5908 kB
Active:         237940 kB
Inactive:       142200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1611776 kB
SwapTotal:     4192956 kB
SwapFree:      4180884 kB
Dirty:           29840 kB
Writeback:           0 kB
Mapped:          25204 kB
Slab:            48976 kB
Committed_AS:  1588656 kB
PageTables:       2020 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264992 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66452 MiB
End job on node2 at 2008-07-04 21:24:16