Trace number 2080442

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 v1.14.6+picosatUNSAT 0.767882 0.901274

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-8-5-add.xml
MD5SUM975c174ddd3fe86ae18e7a03c329b104
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 benchmark0.741886
Satisfiable
(Un)Satisfiability was proved
Number of variables13
Number of constraints38
Maximum constraint arity2
Maximum domain size64
Number of constraints which are defined in extension0
Number of constraints which are defined in intension38
Global constraints used (with number of constraints)

Solver Data 

0.00/0.08	c 0	Sugar v1-14-6 + HOME/picosat
0.00/0.08	c 0	BEGIN Sun Jul 12 05:39:16 2009
0.00/0.08	c 0	PID 27724
0.00/0.08	c 0	HOST node37.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2080442-1247369956.xml TO HOME/temp.csp
0.00/0.08	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.XML2CSP -v -v 'HOME/instance-2080442-1247369956.xml' 'HOME/temp.csp'
0.06/0.27	c 0	2 domains, 13 variables, 3 predicates, 0 relations, 38 constraints
0.06/0.31	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.31	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.SugarMain -v -v -competition -encode 'HOME/temp.csp' 'HOME/temp.cnf' 'HOME/temp.map'
0.06/0.39	c 0	Parsing HOME/temp.csp
0.23/0.42	c 0	parsed 56 expressions
0.23/0.42	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.23/0.43	c 0	Converting to clausal form CSP
0.23/0.44	c 0	converted 6 (10%) expressions
0.23/0.44	c 0	converted 12 (20%) expressions
0.23/0.45	c 0	converted 17 (30%) expressions
0.23/0.46	c 0	converted 23 (40%) expressions
0.23/0.47	c 0	converted 28 (50%) expressions
0.23/0.48	c 0	converted 34 (60%) expressions
0.23/0.49	c 0	converted 40 (70%) expressions
0.24/0.50	c 1	converted 45 (80%) expressions
0.24/0.51	c 1	converted 51 (90%) expressions
0.24/0.52	c 1	converted 56 (100%) expressions
0.24/0.52	c 1	CSP : 33 integers, 38 booleans, 202 clauses, largest domain size 64
0.24/0.52	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.24/0.52	c 1	Propagation in CSP
0.24/0.52	c 1	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.24/0.52	c 1	CSP : 33 integers, 38 booleans, 202 clauses, largest domain size 64
0.24/0.52	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.24/0.53	c 1	Simplifing CSP by introducing new Boolean variables
0.24/0.53	c 1	CSP : 33 integers, 198 booleans, 362 clauses, largest domain size 64
0.24/0.53	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.24/0.55	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.24/0.58	c 1	4 (10%) CSP integer variables are encoded (24 clauses, 265 bytes)
0.24/0.58	c 1	7 (20%) CSP integer variables are encoded (42 clauses, 427 bytes)
0.24/0.58	c 1	10 (30%) CSP integer variables are encoded (172 clauses, 1760 bytes)
0.24/0.59	c 1	14 (40%) CSP integer variables are encoded (364 clauses, 3872 bytes)
0.24/0.59	c 1	17 (50%) CSP integer variables are encoded (382 clauses, 4070 bytes)
0.24/0.59	c 1	20 (60%) CSP integer variables are encoded (400 clauses, 4268 bytes)
0.24/0.59	c 1	24 (70%) CSP integer variables are encoded (424 clauses, 4532 bytes)
0.24/0.59	c 1	27 (80%) CSP integer variables are encoded (442 clauses, 4730 bytes)
0.24/0.59	c 1	30 (90%) CSP integer variables are encoded (460 clauses, 4928 bytes)
0.24/0.59	c 1	33 (100%) CSP integer variables are encoded (478 clauses, 5126 bytes)
0.24/0.60	c 1	37 (10%) CSP clauses are encoded (661 clauses, 7363 bytes)
0.24/0.60	c 1	73 (20%) CSP clauses are encoded (819 clauses, 9369 bytes)
0.24/0.60	c 1	109 (30%) CSP clauses are encoded (969 clauses, 11300 bytes)
0.24/0.61	c 1	145 (40%) CSP clauses are encoded (1137 clauses, 13506 bytes)
0.24/0.61	c 1	181 (50%) CSP clauses are encoded (1319 clauses, 15912 bytes)
0.24/0.61	c 1	218 (60%) CSP clauses are encoded (1518 clauses, 18545 bytes)
0.24/0.62	c 1	254 (70%) CSP clauses are encoded (2282 clauses, 29598 bytes)
0.24/0.62	c 1	290 (80%) CSP clauses are encoded (3045 clauses, 40843 bytes)
0.24/0.62	c 1	326 (90%) CSP clauses are encoded (3690 clauses, 50636 bytes)
0.24/0.63	c 1	362 (100%) CSP clauses are encoded (3990 clauses, 55282 bytes)
0.24/0.63	c 1	362 CSP clauses encoded
0.24/0.63	c 1	Writing map file : HOME/temp.map
0.24/0.63	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.24/0.63	c 1	SAT : 709 SAT variables, 3990 SAT clauses, 55282 bytes
0.24/0.63	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.24/0.68	c 1	SOLVING HOME/temp.cnf
0.24/0.68	c 1	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
0.54/0.79	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.54/0.79	c 1	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.SugarMain -v -v -competition -decode 'HOME/temp.out' 'HOME/temp.map'
0.64/0.86	c 1	Decoding HOME/temp.out
0.64/0.88	s UNSATISFIABLE
0.64/0.89	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.64/0.90	c 1	CPU 0.74 (0.06 0.01 0.57 0.1)
0.64/0.90	c 1	END Sun Jul 12 05:39:17 2009

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-2080442-1247369956/watcher-2080442-1247369956 -o /tmp/evaluation-result-2080442-1247369956/solver-2080442-1247369956 -C 1800 -W 2000 -M 900 HOME/sugar -c -vv -memlimit=900 -jar=HOME/sugar-v1-14-6.jar -solver=HOME/picosat -tmp=HOME/temp HOME/instance-2080442-1247369956.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: 2.07 2.02 2.00 4/73 27724
/proc/meminfo: memFree=1798504/2055920 swapFree=4192812/4192956
[pid=27724] ppid=27722 vsize=12268 CPUtime=0
/proc/27724/stat : 27724 (sugar) R 27722 27724 22489 0 -1 4194304 348 0 0 0 0 0 0 0 22 0 1 0 24059772 12562432 316 996147200 4194304 4206940 548682068608 18446744073709551615 213116484197 0 2147483391 4224 0 0 0 0 17 1 0 0
/proc/27724/statm: 3067 316 241 3 0 167 0

[startup+0.109453 s]
/proc/loadavg: 2.07 2.02 2.00 4/73 27724
/proc/meminfo: memFree=1798504/2055920 swapFree=4192812/4192956
[pid=27724] ppid=27722 vsize=16868 CPUtime=0.06
/proc/27724/stat : 27724 (sugar) S 27722 27724 22489 0 -1 4194304 1227 128 0 0 5 1 0 0 19 0 1 0 24059772 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 213125214306 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27724/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.201473 s]
/proc/loadavg: 2.07 2.02 2.00 4/73 27724
/proc/meminfo: memFree=1798504/2055920 swapFree=4192812/4192956
[pid=27724] ppid=27722 vsize=16868 CPUtime=0.06
/proc/27724/stat : 27724 (sugar) S 27722 27724 22489 0 -1 4194304 1227 128 0 0 5 1 0 0 19 0 1 0 24059772 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 213125214306 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27724/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301486 s]
/proc/loadavg: 2.07 2.02 2.00 4/73 27724
/proc/meminfo: memFree=1798504/2055920 swapFree=4192812/4192956
[pid=27724] ppid=27722 vsize=16868 CPUtime=0.06
/proc/27724/stat : 27724 (sugar) S 27722 27724 22489 0 -1 4194304 1245 128 0 0 5 1 0 0 15 0 1 0 24059772 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 213125214306 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27724/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.701563 s]
/proc/loadavg: 2.07 2.02 2.00 4/73 27724
/proc/meminfo: memFree=1798504/2055920 swapFree=4192812/4192956
[pid=27724] ppid=27722 vsize=16868 CPUtime=0.54
/proc/27724/stat : 27724 (sugar) S 27722 27724 22489 0 -1 4194304 1363 9466 0 2 6 1 41 6 16 0 1 0 24059772 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 213125214306 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27724/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.54
Current children cumulated vsize (KiB) 16868

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

[startup+0.801592 s]
/proc/loadavg: 2.07 2.02 2.00 4/73 27724
/proc/meminfo: memFree=1798504/2055920 swapFree=4192812/4192956
[pid=27724] ppid=27722 vsize=16868 CPUtime=0.64
/proc/27724/stat : 27724 (sugar) S 27722 27724 22489 0 -1 4194304 1424 9892 0 2 6 1 49 8 16 0 1 0 24059772 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 213125214306 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27724/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.64
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 0.901274
CPU time (s): 0.767882
CPU user time (s): 0.638902
CPU system time (s): 0.12898
CPU usage (%): 85.1996
Max. virtual memory (cumulated for all children) (KiB): 16868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.638902
system time used= 0.12898
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15084
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= 624
involuntary context switches= 498

runsolver used 0.002999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node37 at 2009-07-12 05:39:16
IDJOB=2080442
IDBENCH=57088
IDSOLVER=738
FILE ID=node37/2080442-1247369956
PBS_JOBID= 9507054
Free space on /tmp= 66428 MiB

SOLVER NAME= Sugar v1.14.6+picosat
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-8-5-add.xml
COMMAND LINE= DIR/sugar -c -vv -memlimit=MEMLIMIT -jar="DIR/sugar-v1-14-6.jar" -solver="DIR/picosat" -tmp="TMPDIR/temp" BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080442-1247369956/watcher-2080442-1247369956 -o /tmp/evaluation-result-2080442-1247369956/solver-2080442-1247369956 -C 1800 -W 2000 -M 900  HOME/sugar -c -vv -memlimit=900 -jar="HOME/sugar-v1-14-6.jar" -solver="HOME/picosat" -tmp="HOME/temp" HOME/instance-2080442-1247369956.xml

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

MD5SUM BENCH= 975c174ddd3fe86ae18e7a03c329b104
RANDOM SEED=1059432116

node37.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		: 3000.260
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		: 3000.260
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:       1798984 kB
Buffers:         24988 kB
Cached:         157524 kB
SwapCached:          0 kB
Active:         143876 kB
Inactive:        59720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1798984 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1520 kB
Writeback:           0 kB
Mapped:          31748 kB
Slab:            38732 kB
Committed_AS:   266244 kB
PageTables:       1736 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= 66428 MiB
End job on node37 at 2009-07-12 05:39:17