Trace number 1081317

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+picosatUNSAT 0.821874 0.859758

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-8-5-mul.xml
MD5SUM20dab5dec1acf991b1236d2ad4d0004b
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 benchmark0.756884
Satisfiable
(Un)Satisfiability was proved
Number of variables13
Number of constraints78
Maximum constraint arity2
Maximum domain size64
Number of constraints which are defined in extension0
Number of constraints which are defined in intension78
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 02:07:10 2008
0.00/0.04	c 0	PID 27667
0.04/0.05	c 0	HOST node70.alineos.net
0.04/0.05	c 0	CONVERTING HOME/instance-1081317-1215216430.xml TO HOME/temp.csp
0.04/0.05	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.XML2CSP 'HOME/instance-1081317-1215216430.xml' 'HOME/temp.csp'
0.04/0.22	c 0	2 domains, 13 variables, 4 predicates, 0 relations, 78 constraints
0.04/0.26	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.04/0.26	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'
0.23/0.34	c 0	Parsing HOME/temp.csp
0.23/0.41	c 1	parsed 97 expressions
0.23/0.41	c 1	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.23/0.41	c 1	Converting to clausal form CSP
0.23/0.43	c 1	converted 10 (10%) expressions
0.23/0.44	c 1	converted 20 (20%) expressions
0.23/0.46	c 1	converted 30 (30%) expressions
0.23/0.47	c 1	converted 39 (40%) expressions
0.23/0.47	c 1	converted 49 (50%) expressions
0.23/0.49	c 1	converted 59 (60%) expressions
0.23/0.49	c 1	converted 68 (70%) expressions
0.23/0.50	c 1	converted 78 (80%) expressions
0.23/0.51	c 1	converted 88 (90%) expressions
0.23/0.52	c 1	converted 97 (100%) expressions
0.23/0.52	c 1	CSP : 33 integers, 38 booleans, 242 clauses, largest domain size 64
0.23/0.52	c 1	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.23/0.52	c 1	Propagation in CSP
0.23/0.53	c 1	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.23/0.53	c 1	CSP : 33 integers, 38 booleans, 242 clauses, largest domain size 64
0.23/0.53	c 1	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.23/0.53	c 1	Simplifing CSP by introducing new Boolean variables
0.23/0.53	c 1	CSP : 33 integers, 278 booleans, 482 clauses, largest domain size 64
0.23/0.53	c 1	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.23/0.55	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.23/0.56	c 1	4 (10%) CSP integer variables are encoded (24 clauses, 265 bytes)
0.23/0.56	c 1	7 (20%) CSP integer variables are encoded (42 clauses, 427 bytes)
0.23/0.57	c 1	10 (30%) CSP integer variables are encoded (172 clauses, 1760 bytes)
0.23/0.57	c 1	14 (40%) CSP integer variables are encoded (364 clauses, 3872 bytes)
0.23/0.57	c 1	17 (50%) CSP integer variables are encoded (382 clauses, 4070 bytes)
0.23/0.57	c 1	20 (60%) CSP integer variables are encoded (400 clauses, 4268 bytes)
0.23/0.57	c 1	24 (70%) CSP integer variables are encoded (424 clauses, 4532 bytes)
0.23/0.57	c 1	27 (80%) CSP integer variables are encoded (442 clauses, 4730 bytes)
0.23/0.57	c 1	30 (90%) CSP integer variables are encoded (460 clauses, 4928 bytes)
0.23/0.57	c 1	33 (100%) CSP integer variables are encoded (478 clauses, 5126 bytes)
0.23/0.58	c 1	49 (10%) CSP clauses are encoded (702 clauses, 7865 bytes)
0.23/0.59	c 1	97 (20%) CSP clauses are encoded (2105 clauses, 27829 bytes)
0.23/0.60	c 1	145 (30%) CSP clauses are encoded (2325 clauses, 30707 bytes)
0.23/0.60	c 1	193 (40%) CSP clauses are encoded (2558 clauses, 33816 bytes)
0.23/0.60	c 1	241 (50%) CSP clauses are encoded (2811 clauses, 37255 bytes)
0.23/0.60	c 1	290 (60%) CSP clauses are encoded (3074 clauses, 40886 bytes)
0.23/0.61	c 1	338 (70%) CSP clauses are encoded (3344 clauses, 44610 bytes)
0.23/0.61	c 1	386 (80%) CSP clauses are encoded (3718 clauses, 50145 bytes)
0.23/0.61	c 1	434 (90%) CSP clauses are encoded (4194 clauses, 57463 bytes)
0.23/0.62	c 1	482 (100%) CSP clauses are encoded (4670 clauses, 64867 bytes)
0.23/0.62	c 1	482 CSP clauses encoded
0.23/0.62	c 1	Writing map file : HOME/temp.map
0.23/0.62	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.23/0.62	c 1	SAT : 789 SAT variables, 4670 SAT clauses, 64867 bytes
0.23/0.62	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.23/0.63	c 1	SOLVING HOME/temp.cnf
0.23/0.63	c 1	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
0.58/0.75	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.58/0.75	c 1	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.SugarMain -competition -decode 'HOME/temp.out' 'HOME/temp.map'
0.70/0.82	c 1	Decoding HOME/temp.out
0.70/0.84	s UNSATISFIABLE
0.70/0.84	c 1	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.70/0.85	c 1	CPU 0.68 (0.03 0.01 0.65 0.11)
0.70/0.85	c 1	END Sat Jul  5 02:07:11 2008

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-1081317-1215216430/watcher-1081317-1215216430 -o /tmp/evaluation-result-1081317-1215216430/solver-1081317-1215216430 -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-1081317-1215216430.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: 1.99 2.00 2.00 4/81 27667
/proc/meminfo: memFree=1422352/2055920 swapFree=4111004/4192956
[pid=27667] ppid=27665 vsize=12268 CPUtime=0
/proc/27667/stat : 27667 (sugar) R 27665 27667 26736 0 -1 4194304 348 0 0 0 0 0 0 0 20 0 1 0 2000611867 12562432 316 996147200 4194304 4206940 548682068608 18446744073709551615 233402235493 0 2147483391 4224 0 0 0 0 17 1 0 0
/proc/27667/statm: 3067 316 241 3 0 167 0

[startup+0.0503029 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 27667
/proc/meminfo: memFree=1422352/2055920 swapFree=4111004/4192956
[pid=27667] ppid=27665 vsize=13600 CPUtime=0.04
/proc/27667/stat : 27667 (sugar) S 27665 27667 26736 0 -1 4194304 837 0 0 0 3 1 0 0 18 0 1 0 2000611867 13926400 792 996147200 4194304 4206940 548682068608 18446744073709551615 233410965602 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27667/statm: 3400 792 367 3 0 500 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13600

[startup+0.101218 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 27667
/proc/meminfo: memFree=1422352/2055920 swapFree=4111004/4192956
[pid=27667] ppid=27665 vsize=13600 CPUtime=0.04
/proc/27667/stat : 27667 (sugar) S 27665 27667 26736 0 -1 4194304 900 127 0 0 3 1 0 0 19 0 1 0 2000611867 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 233410965602 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27667/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13600

[startup+0.301251 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 27667
/proc/meminfo: memFree=1422352/2055920 swapFree=4111004/4192956
[pid=27667] ppid=27665 vsize=13600 CPUtime=0.23
/proc/27667/stat : 27667 (sugar) S 27665 27667 26736 0 -1 4194304 956 4116 0 1 3 1 17 2 16 0 1 0 2000611867 13926400 797 996147200 4194304 4206940 548682068608 18446744073709551615 233410965602 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27667/statm: 3400 797 370 3 0 500 0
Current children cumulated CPU time (s) 0.23
Current children cumulated vsize (KiB) 13600

[startup+0.701317 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 27667
/proc/meminfo: memFree=1422352/2055920 swapFree=4111004/4192956
[pid=27667] ppid=27665 vsize=13600 CPUtime=0.58
/proc/27667/stat : 27667 (sugar) S 27665 27667 26736 0 -1 4194304 1021 9417 0 2 3 1 49 5 16 0 1 0 2000611867 13926400 797 996147200 4194304 4206940 548682068608 18446744073709551615 233410965602 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27667/statm: 3400 797 370 3 0 500 0
Current children cumulated CPU time (s) 0.58
Current children cumulated vsize (KiB) 13600

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

[startup+0.80134 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 27667
/proc/meminfo: memFree=1422352/2055920 swapFree=4111004/4192956
[pid=27667] ppid=27665 vsize=13600 CPUtime=0.7
/proc/27667/stat : 27667 (sugar) S 27665 27667 26736 0 -1 4194304 1068 9850 0 2 3 1 58 8 16 0 1 0 2000611867 13926400 797 996147200 4194304 4206940 548682068608 18446744073709551615 233410965602 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27667/statm: 3400 797 370 3 0 500 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 13600

Child status: 0
Real time (s): 0.859758
CPU time (s): 0.821874
CPU user time (s): 0.689895
CPU system time (s): 0.131979
CPU usage (%): 95.5937
Max. virtual memory (cumulated for all children) (KiB): 13600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.689895
system time used= 0.131979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14606
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= 895
involuntary context switches= 746

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node70 at 2008-07-05 02:07:10
IDJOB=1081317
IDBENCH=57091
IDSOLVER=345
FILE ID=node70/1081317-1215216430
PBS_JOBID= 7881772
Free space on /tmp= 66340 MiB

SOLVER NAME= Sugar v1.13+picosat
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-8-5-mul.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-1081317-1215216430/watcher-1081317-1215216430 -o /tmp/evaluation-result-1081317-1215216430/solver-1081317-1215216430 -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-1081317-1215216430.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 20dab5dec1acf991b1236d2ad4d0004b
RANDOM SEED=1531957769

node70.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		: 3000.256
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		: 3000.256
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:       1422832 kB
Buffers:         64952 kB
Cached:         299444 kB
SwapCached:      76584 kB
Active:         383192 kB
Inactive:       189596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1422832 kB
SwapTotal:     4192956 kB
SwapFree:      4111004 kB
Dirty:            1288 kB
Writeback:           0 kB
Mapped:         223904 kB
Slab:            45068 kB
Committed_AS:  4358704 kB
PageTables:       2196 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= 66340 MiB
End job on node70 at 2008-07-05 02:07:11