Trace number 2116700

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
Choco2.1.1b 2009-07-16UNSAT 0.896863 0.949657

DiagnosticValue
CHECKS0
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-3.xml
MD5SUMd07220ca9cf8898c2c9b405e7e6368f7
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.029995
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints210
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension210
Global constraints used (with number of constraints)

Solver Data 

0.88/0.90	s UNSATISFIABLE
0.88/0.90	d AC 32
0.88/0.90	d RUNTIME 0.787
0.88/0.90	d NODES 0
0.88/0.90	d NODES/s 0
0.88/0.90	d BACKTRACKS 0
0.88/0.90	d BACKTRACKS/s 0
0.88/0.90	d CHECKS 0
0.88/0.90	d CHECKS/s 0
0.88/0.90	c UNSAT 0.787 TIME      0 NDS    324 PARSTIME      134 BUILDPB       327 CONFIG        2 RES       false RESTART       0 HEURISTIC       true RANDVAL

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-2116700-1248032123/watcher-2116700-1248032123 -o /tmp/evaluation-result-2116700-1248032123/solver-2116700-1248032123 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2116700-1248032123.xml -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979 

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: 1.93 1.98 1.98 3/80 26434
/proc/meminfo: memFree=698696/2055920 swapFree=4192812/4192956
[pid=26434] ppid=26432 vsize=10676 CPUtime=0
/proc/26434/stat : 26434 (java) S 26432 26434 25826 0 -1 0 710 0 0 0 0 0 0 0 18 0 2 0 90275503 10932224 488 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/26434/statm: 2669 488 211 9 0 1184 0
[pid=26434/tid=26435] ppid=26432 vsize=10676 CPUtime=0
/proc/26434/task/26435/stat : 26435 (java) R 26432 26434 25826 0 -1 64 0 0 0 0 0 0 0 0 19 0 2 0 90275504 10932224 488 996147200 134512640 134550932 4294955888 18446744073709551615 8241112 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.0537159 s]
/proc/loadavg: 1.93 1.98 1.98 3/80 26434
/proc/meminfo: memFree=698696/2055920 swapFree=4192812/4192956
[pid=26434] ppid=26432 vsize=860216 CPUtime=0.03
/proc/26434/stat : 26434 (java) S 26432 26434 25826 0 -1 0 2389 0 1 0 2 1 0 0 18 0 6 0 90275503 880861184 1949 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 1 0 0
/proc/26434/statm: 215054 1949 907 9 0 209969 0
[pid=26434/tid=26435] ppid=26432 vsize=860216 CPUtime=0.03
/proc/26434/task/26435/stat : 26435 (java) S 26432 26434 25826 0 -1 64 1664 0 1 0 2 1 0 0 17 0 6 0 90275504 880861184 1949 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800971 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 860216

[startup+0.102615 s]
/proc/loadavg: 1.93 1.98 1.98 3/80 26434
/proc/meminfo: memFree=698696/2055920 swapFree=4192812/4192956
[pid=26434] ppid=26432 vsize=864072 CPUtime=0.08
/proc/26434/stat : 26434 (java) S 26432 26434 25826 0 -1 0 3470 0 1 0 6 2 0 0 18 0 9 0 90275503 884809728 2935 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26434/statm: 216018 2935 1437 9 0 210487 0
[pid=26434/tid=26435] ppid=26432 vsize=864072 CPUtime=0.07
/proc/26434/task/26435/stat : 26435 (java) R 26432 26434 25826 0 -1 64 2521 0 1 0 5 2 0 0 20 0 9 0 90275504 884809728 2935 996147200 134512640 134550932 4294955888 18446744073709551615 4159464979 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 864072

[startup+0.302649 s]
/proc/loadavg: 1.93 1.98 1.98 3/80 26434
/proc/meminfo: memFree=698696/2055920 swapFree=4192812/4192956
[pid=26434] ppid=26432 vsize=864860 CPUtime=0.28
/proc/26434/stat : 26434 (java) S 26432 26434 25826 0 -1 0 4748 0 1 0 24 4 0 0 18 0 9 0 90275503 885616640 4170 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26434/statm: 216215 4170 1864 9 0 210684 0
[pid=26434/tid=26435] ppid=26432 vsize=864860 CPUtime=0.21
/proc/26434/task/26435/stat : 26435 (java) R 26432 26434 25826 0 -1 64 3557 0 1 0 18 3 0 0 20 0 9 0 90275504 885616640 4170 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 864860

[startup+0.702717 s]
/proc/loadavg: 1.93 1.98 1.98 3/80 26434
/proc/meminfo: memFree=698696/2055920 swapFree=4192812/4192956
[pid=26434] ppid=26432 vsize=865068 CPUtime=0.68
/proc/26434/stat : 26434 (java) S 26432 26434 25826 0 -1 0 7124 0 1 0 62 6 0 0 18 0 9 0 90275503 885829632 6511 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26434/statm: 216267 6511 1963 9 0 210736 0
[pid=26434/tid=26435] ppid=26432 vsize=865068 CPUtime=0.54
/proc/26434/task/26435/stat : 26435 (java) R 26432 26434 25826 0 -1 64 5883 0 1 0 50 4 0 0 24 0 9 0 90275504 885829632 6511 996147200 134512640 134550932 4294955888 18446744073709551615 4125901476 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 865068

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

[startup+0.90275 s]
/proc/loadavg: 1.93 1.98 1.98 3/80 26434
/proc/meminfo: memFree=698696/2055920 swapFree=4192812/4192956
[pid=26434] ppid=26432 vsize=865068 CPUtime=0.88
/proc/26434/stat : 26434 (java) S 26432 26434 25826 0 -1 0 7788 0 1 0 81 7 0 0 18 0 9 0 90275503 885829632 7168 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26434/statm: 216267 7168 1972 9 0 210736 0
[pid=26434/tid=26435] ppid=26432 vsize=865068 CPUtime=0.69
/proc/26434/task/26435/stat : 26435 (java) R 26432 26434 25826 0 -1 64 6515 0 1 0 64 5 0 0 25 0 9 0 90275504 885829632 7168 996147200 134512640 134550932 4294955888 18446744073709551615 4125911174 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 865068

Child status: 0
Real time (s): 0.949657
CPU time (s): 0.896863
CPU user time (s): 0.821875
CPU system time (s): 0.074988
CPU usage (%): 94.4407
Max. virtual memory (cumulated for all children) (KiB): 865068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.821875
system time used= 0.074988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7820
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= 994
involuntary context switches= 987

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node57 at 2009-07-19 21:35:23
IDJOB=2116700
IDBENCH=57530
IDSOLVER=780
FILE ID=node57/2116700-1248032123
PBS_JOBID= 9528935
Free space on /tmp= 66340 MiB

SOLVER NAME= Choco2.1.1b 2009-07-16
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-3.xml
COMMAND LINE= java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file BENCHNAME -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2116700-1248032123/watcher-2116700-1248032123 -o /tmp/evaluation-result-2116700-1248032123/solver-2116700-1248032123 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2116700-1248032123.xml -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979

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

MD5SUM BENCH= d07220ca9cf8898c2c9b405e7e6368f7
RANDOM SEED=1047263369

node57.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		: 3000.261
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		: 3000.261
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:        699176 kB
Buffers:         99740 kB
Cached:         919920 kB
SwapCached:          0 kB
Active:         398676 kB
Inactive:       854712 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        699176 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5160 kB
Writeback:           0 kB
Mapped:         251624 kB
Slab:            88240 kB
Committed_AS:  1279592 kB
PageTables:       2212 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= 66336 MiB
End job on node57 at 2009-07-19 21:35:24