Trace number 1093934

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
Sugar v1.13+picosatSAT 0.547916 0.579106

General information on the benchmark

Namecsp/queens/
normalized-queens-8.xml
MD5SUM041d8a5e473344d6f48f9e7e3721a8ce
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables8
Number of constraints28
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension0
Number of constraints which are defined in intension28
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.04	c 0	Sugar v1-13 + HOME/picosat
0.00/0.04	c 0	BEGIN Sat Jul  5 19:23:12 2008
0.00/0.04	c 0	PID 20581
0.00/0.04	c 0	HOST node82.alineos.net
0.00/0.04	c 0	CONVERTING HOME/instance-1093934-1215278592.xml TO HOME/temp.csp
0.00/0.04	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.XML2CSP 'HOME/instance-1093934-1215278592.xml' 'HOME/temp.csp'
0.03/0.19	c 0	1 domains, 8 variables, 1 predicates, 0 relations, 28 constraints
0.03/0.19	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.03/0.19	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.SugarMain -competition -encode 'HOME/temp.csp' 'HOME/temp.cnf' 'HOME/temp.map'
0.17/0.27	c 0	Parsing HOME/temp.csp
0.17/0.30	c 0	parsed 38 expressions
0.17/0.30	c 0	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.17/0.30	c 0	Converting to clausal form CSP
0.17/0.32	c 0	converted 4 (10%) expressions
0.17/0.32	c 0	converted 8 (20%) expressions
0.17/0.33	c 0	converted 12 (30%) expressions
0.17/0.34	c 0	converted 16 (40%) expressions
0.17/0.34	c 0	converted 19 (50%) expressions
0.17/0.35	c 0	converted 23 (60%) expressions
0.17/0.35	c 0	converted 27 (70%) expressions
0.17/0.36	c 0	converted 31 (80%) expressions
0.17/0.36	c 0	converted 35 (90%) expressions
0.17/0.36	c 0	converted 38 (100%) expressions
0.17/0.36	c 0	CSP : 8 integers, 28 booleans, 112 clauses, largest domain size 8
0.17/0.36	c 0	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.17/0.36	c 0	Propagation in CSP
0.17/0.37	c 0	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.17/0.37	c 0	CSP : 8 integers, 28 booleans, 112 clauses, largest domain size 8
0.17/0.37	c 0	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.17/0.37	c 0	Simplifing CSP by introducing new Boolean variables
0.17/0.37	c 0	CSP : 8 integers, 138 booleans, 222 clauses, largest domain size 8
0.17/0.37	c 0	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.17/0.39	c 0	Encoding CSP to SAT : HOME/temp.cnf
0.18/0.40	c 0	1 (10%) CSP integer variables are encoded (6 clauses, 106 bytes)
0.18/0.40	c 0	2 (20%) CSP integer variables are encoded (12 clauses, 157 bytes)
0.18/0.40	c 0	3 (30%) CSP integer variables are encoded (18 clauses, 211 bytes)
0.18/0.40	c 0	4 (40%) CSP integer variables are encoded (24 clauses, 265 bytes)
0.18/0.40	c 0	5 (50%) CSP integer variables are encoded (30 clauses, 319 bytes)
0.18/0.40	c 0	6 (60%) CSP integer variables are encoded (36 clauses, 373 bytes)
0.18/0.40	c 0	7 (70%) CSP integer variables are encoded (42 clauses, 427 bytes)
0.18/0.40	c 0	8 (80%) CSP integer variables are encoded (48 clauses, 481 bytes)
0.18/0.41	c 0	23 (10%) CSP clauses are encoded (169 clauses, 1835 bytes)
0.18/0.42	c 0	45 (20%) CSP clauses are encoded (259 clauses, 2882 bytes)
0.18/0.42	c 0	67 (30%) CSP clauses are encoded (359 clauses, 4132 bytes)
0.18/0.42	c 0	89 (40%) CSP clauses are encoded (461 clauses, 5422 bytes)
0.18/0.42	c 0	111 (50%) CSP clauses are encoded (554 clauses, 6601 bytes)
0.18/0.43	c 0	134 (60%) CSP clauses are encoded (660 clauses, 7963 bytes)
0.18/0.43	c 0	156 (70%) CSP clauses are encoded (766 clauses, 9328 bytes)
0.18/0.43	c 0	178 (80%) CSP clauses are encoded (874 clauses, 10719 bytes)
0.18/0.43	c 0	200 (90%) CSP clauses are encoded (992 clauses, 12247 bytes)
0.18/0.44	c 0	222 (100%) CSP clauses are encoded (1110 clauses, 13774 bytes)
0.18/0.44	c 0	222 CSP clauses encoded
0.18/0.44	c 0	Writing map file : HOME/temp.map
0.18/0.44	c 0	Heap : 1 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.18/0.44	c 0	SAT : 194 SAT variables, 1110 SAT clauses, 13774 bytes
0.18/0.44	c 0	Heap : 1 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.18/0.46	c 0	SOLVING HOME/temp.cnf
0.18/0.46	c 0	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
0.18/0.47	c 0	DECODING HOME/temp.out WITH HOME/temp.map
0.18/0.47	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.SugarMain -competition -decode 'HOME/temp.out' 'HOME/temp.map'
0.44/0.54	c 0	Decoding HOME/temp.out
0.44/0.56	s SATISFIABLE
0.44/0.56	v 7 3 8 2 5 1 6 4
0.44/0.56	c 0	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.44/0.57	c 0	CPU 0.44 (0.03 0.01 0.41 0.08)
0.44/0.57	c 0	END Sat Jul  5 19:23:12 2008

Verifier Data (download as text)

OK

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-1093934-1215278592/watcher-1093934-1215278592 -o /tmp/evaluation-result-1093934-1215278592/solver-1093934-1215278592 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/sugar -c -vv -java=java -Xmx700M -jar=HOME/sugar-v1-13.jar -solver=HOME/picosat -tmp=HOME/temp HOME/instance-1093934-1215278592.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: 1.98 2.00 2.00 3/85 20581
/proc/meminfo: memFree=1670600/2055920 swapFree=4180672/4192956
[pid=20581] ppid=20579 vsize=12272 CPUtime=0
/proc/20581/stat : 20581 (sugar) R 20579 20581 18641 0 -1 4194304 359 0 0 0 0 0 0 0 18 0 1 0 262333003 12566528 327 996147200 4194304 4206940 548682068608 18446744073709551615 224273677310 0 0 4224 0 0 0 0 17 1 0 0
/proc/20581/statm: 3068 328 246 3 0 168 0

[startup+0.0767601 s]
/proc/loadavg: 1.98 2.00 2.00 3/85 20581
/proc/meminfo: memFree=1670600/2055920 swapFree=4180672/4192956
[pid=20581] ppid=20579 vsize=13600 CPUtime=0.03
/proc/20581/stat : 20581 (sugar) S 20579 20581 18641 0 -1 4194304 900 127 0 0 3 0 0 0 16 0 1 0 262333003 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/20581/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13600

[startup+0.10176 s]
/proc/loadavg: 1.98 2.00 2.00 3/85 20581
/proc/meminfo: memFree=1670600/2055920 swapFree=4180672/4192956
[pid=20581] ppid=20579 vsize=13600 CPUtime=0.03
/proc/20581/stat : 20581 (sugar) S 20579 20581 18641 0 -1 4194304 900 127 0 0 3 0 0 0 16 0 1 0 262333003 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/20581/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13600

[startup+0.301777 s]
/proc/loadavg: 1.98 2.00 2.00 3/85 20581
/proc/meminfo: memFree=1670600/2055920 swapFree=4180672/4192956
[pid=20581] ppid=20579 vsize=13600 CPUtime=0.17
/proc/20581/stat : 20581 (sugar) S 20579 20581 18641 0 -1 4194304 973 4087 0 1 3 0 12 2 15 0 1 0 262333003 13926400 797 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/20581/statm: 3400 797 370 3 0 500 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 13600

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

[startup+0.5018 s]
/proc/loadavg: 1.98 2.00 2.00 3/85 20581
/proc/meminfo: memFree=1670600/2055920 swapFree=4180672/4192956
[pid=20581] ppid=20579 vsize=13600 CPUtime=0.44
/proc/20581/stat : 20581 (sugar) S 20579 20581 18641 0 -1 4194304 1068 9635 0 2 3 1 34 6 16 0 1 0 262333003 13926400 797 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/20581/statm: 3400 797 370 3 0 500 0
Current children cumulated CPU time (s) 0.44
Current children cumulated vsize (KiB) 13600

Child status: 0
Real time (s): 0.579106
CPU time (s): 0.547916
CPU user time (s): 0.444932
CPU system time (s): 0.102984
CPU usage (%): 94.6141
Max. virtual memory (cumulated for all children) (KiB): 13600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.444932
system time used= 0.102984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14397
page faults= 3
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 726
involuntary context switches= 587

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node82 at 2008-07-05 19:23:12
IDJOB=1093934
IDBENCH=58736
IDSOLVER=345
FILE ID=node82/1093934-1215278592
PBS_JOBID= 7882230
Free space on /tmp= 66468 MiB

SOLVER NAME= Sugar v1.13+picosat
BENCH NAME= CPAI08/csp/queens/normalized-queens-8.xml
COMMAND LINE= DIR/sugar -c -vv -java="java -Xmx700M" -jar="DIR/sugar-v1-13.jar" -solver="DIR/picosat" -tmp="TMPDIR/temp" BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1093934-1215278592/watcher-1093934-1215278592 -o /tmp/evaluation-result-1093934-1215278592/solver-1093934-1215278592 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/sugar -c -vv -java="java -Xmx700M" -jar="HOME/sugar-v1-13.jar" -solver="HOME/picosat" -tmp="HOME/temp" HOME/instance-1093934-1215278592.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 041d8a5e473344d6f48f9e7e3721a8ce
RANDOM SEED=1191895845

node82.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		: 3000.239
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		: 3000.239
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1671080 kB
Buffers:         48624 kB
Cached:         247064 kB
SwapCached:       5892 kB
Active:         239268 kB
Inactive:        97048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1671080 kB
SwapTotal:     4192956 kB
SwapFree:      4180672 kB
Dirty:            1280 kB
Writeback:           0 kB
Mapped:          57612 kB
Slab:            33552 kB
Committed_AS:   720852 kB
PageTables:       1932 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66468 MiB
End job on node82 at 2008-07-05 19:23:12