Trace number 2080651

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 1.06984 1.14699

General information on the benchmark

Namecsp/knights/
normalized-knights-20-5.xml
MD5SUM311a040810b6f6cbc5a2df6382a6ca4e
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 benchmark0.787879
Satisfiable
(Un)Satisfiability was proved
Number of variables5
Number of constraints10
Maximum constraint arity2
Maximum domain size400
Number of constraints which are defined in extension0
Number of constraints which are defined in intension10
Global constraints used (with number of constraints)

Solver Data 

0.01/0.07	c 0	Sugar v1-14-6 + HOME/picosat
0.01/0.07	c 0	BEGIN Sun Jul 12 05:46:06 2009
0.01/0.07	c 0	PID 24972
0.01/0.07	c 0	HOST node87.alineos.net
0.01/0.07	c 0	CONVERTING HOME/instance-2080651-1247370366.xml TO HOME/temp.csp
0.01/0.07	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.XML2CSP -v -v 'HOME/instance-2080651-1247370366.xml' 'HOME/temp.csp'
0.06/0.21	c 0	1 domains, 5 variables, 2 predicates, 0 relations, 10 constraints
0.06/0.23	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.23	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'
0.20/0.30	c 0	Parsing HOME/temp.csp
0.20/0.32	c 0	parsed 18 expressions
0.20/0.33	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.20/0.33	c 0	Converting to clausal form CSP
0.20/0.35	c 0	converted 2 (10%) expressions
0.20/0.35	c 0	converted 4 (20%) expressions
0.20/0.35	c 0	converted 6 (30%) expressions
0.20/0.35	c 0	converted 8 (40%) expressions
0.20/0.36	c 0	converted 9 (50%) expressions
0.20/0.37	c 0	converted 11 (60%) expressions
0.20/0.38	c 0	converted 13 (70%) expressions
0.20/0.38	c 0	converted 15 (80%) expressions
0.20/0.39	c 0	converted 17 (90%) expressions
0.20/0.39	c 0	converted 18 (100%) expressions
0.20/0.39	c 0	CSP : 25 integers, 10 booleans, 90 clauses, largest domain size 400
0.20/0.39	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.20/0.39	c 0	Propagation in CSP
0.20/0.40	c 0	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.20/0.40	c 0	CSP : 25 integers, 10 booleans, 90 clauses, largest domain size 400
0.20/0.40	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.20/0.40	c 0	Simplifing CSP by introducing new Boolean variables
0.20/0.40	c 0	CSP : 25 integers, 60 booleans, 140 clauses, largest domain size 400
0.20/0.40	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.20/0.43	c 0	Encoding CSP to SAT : HOME/temp.cnf
0.20/0.45	c 0	3 (10%) CSP integer variables are encoded (1194 clauses, 13379 bytes)
0.20/0.45	c 0	5 (20%) CSP integer variables are encoded (1990 clauses, 23727 bytes)
0.20/0.45	c 0	8 (30%) CSP integer variables are encoded (2044 clauses, 24429 bytes)
0.20/0.45	c 0	10 (40%) CSP integer variables are encoded (2080 clauses, 24897 bytes)
0.20/0.45	c 0	13 (50%) CSP integer variables are encoded (2134 clauses, 25599 bytes)
0.20/0.45	c 0	15 (60%) CSP integer variables are encoded (2170 clauses, 26067 bytes)
0.20/0.45	c 0	18 (70%) CSP integer variables are encoded (2224 clauses, 26769 bytes)
0.20/0.45	c 0	20 (80%) CSP integer variables are encoded (2260 clauses, 27237 bytes)
0.20/0.45	c 0	23 (90%) CSP integer variables are encoded (2314 clauses, 27939 bytes)
0.20/0.45	c 0	25 (100%) CSP integer variables are encoded (2350 clauses, 28407 bytes)
0.20/0.47	c 0	14 (10%) CSP clauses are encoded (5620 clauses, 83615 bytes)
0.20/0.47	c 0	28 (20%) CSP clauses are encoded (5842 clauses, 87765 bytes)
0.20/0.48	c 0	42 (30%) CSP clauses are encoded (9078 clauses, 145119 bytes)
0.20/0.48	c 0	56 (40%) CSP clauses are encoded (9283 clauses, 148945 bytes)
0.20/0.48	c 0	70 (50%) CSP clauses are encoded (11016 clauses, 179381 bytes)
0.20/0.48	c 0	84 (60%) CSP clauses are encoded (11238 clauses, 183531 bytes)
0.20/0.49	c 0	98 (70%) CSP clauses are encoded (14474 clauses, 241719 bytes)
0.20/0.49	c 0	112 (80%) CSP clauses are encoded (14679 clauses, 245545 bytes)
0.20/0.49	c 0	126 (90%) CSP clauses are encoded (15634 clauses, 263206 bytes)
0.20/0.49	c 0	140 (100%) CSP clauses are encoded (15840 clauses, 267051 bytes)
0.20/0.49	c 0	140 CSP clauses encoded
0.20/0.49	c 0	Writing map file : HOME/temp.map
0.20/0.50	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.20/0.50	c 0	SAT : 2435 SAT variables, 15840 SAT clauses, 267051 bytes
0.20/0.50	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.54	c 0	SOLVING HOME/temp.cnf
0.21/0.54	c 0	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
0.91/1.03	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.91/1.03	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'
0.95/1.11	c 1	Decoding HOME/temp.out
0.95/1.12	s UNSATISFIABLE
0.95/1.13	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.95/1.14	c 1	CPU 1.05 (0.05 0.02 0.83 0.15)
0.95/1.14	c 1	END Sun Jul 12 05:46:07 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-2080651-1247370366/watcher-2080651-1247370366 -o /tmp/evaluation-result-2080651-1247370366/solver-2080651-1247370366 -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-2080651-1247370366.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: 2.21 2.08 2.08 4/73 24972
/proc/meminfo: memFree=1062984/2055920 swapFree=4192948/4192956
[pid=24972] ppid=24970 vsize=12272 CPUtime=0
/proc/24972/stat : 24972 (sugar) R 24970 24972 20976 0 -1 4194304 396 0 0 0 0 0 0 0 18 0 1 0 24101417 12566528 364 996147200 4194304 4206940 548682068608 18446744073709551615 254622612478 0 0 4224 0 0 0 0 17 0 0 0
/proc/24972/statm: 3068 364 274 3 0 168 0

[startup+0.0149249 s]
/proc/loadavg: 2.21 2.08 2.08 4/73 24972
/proc/meminfo: memFree=1062984/2055920 swapFree=4192948/4192956
[pid=24972] ppid=24970 vsize=12544 CPUtime=0.01
/proc/24972/stat : 24972 (sugar) R 24970 24972 20976 0 -1 4194304 518 0 0 0 1 0 0 0 18 0 1 0 24101417 12845056 486 996147200 4194304 4206940 548682068608 18446744073709551615 254613589323 0 0 4224 0 0 0 0 17 0 0 0
/proc/24972/statm: 3136 486 314 3 0 236 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12544

[startup+0.10293 s]
/proc/loadavg: 2.21 2.08 2.08 4/73 24972
/proc/meminfo: memFree=1062984/2055920 swapFree=4192948/4192956
[pid=24972] ppid=24970 vsize=16868 CPUtime=0.06
/proc/24972/stat : 24972 (sugar) S 24970 24972 20976 0 -1 4194304 1227 128 0 0 5 1 0 0 17 0 1 0 24101417 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 254622609506 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/24972/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301958 s]
/proc/loadavg: 2.21 2.08 2.08 4/73 24972
/proc/meminfo: memFree=1062984/2055920 swapFree=4192948/4192956
[pid=24972] ppid=24970 vsize=16868 CPUtime=0.2
/proc/24972/stat : 24972 (sugar) S 24970 24972 20976 0 -1 4194304 1292 4139 0 1 5 1 12 2 16 0 1 0 24101417 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 254622609506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24972/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 16868

[startup+0.702002 s]
/proc/loadavg: 2.21 2.08 2.08 4/73 24972
/proc/meminfo: memFree=1062984/2055920 swapFree=4192948/4192956
[pid=24972] ppid=24970 vsize=16868 CPUtime=0.47
/proc/24972/stat : 24972 (sugar) S 24970 24972 20976 0 -1 4194304 1363 9365 0 2 5 2 35 5 16 0 1 0 24101417 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 254622609506 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/24972/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.47
Current children cumulated vsize (KiB) 16868

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

[startup+1.10605 s]
/proc/loadavg: 2.21 2.08 2.08 3/76 24996
/proc/meminfo: memFree=1058544/2055920 swapFree=4192948/4192956
[pid=24972] ppid=24970 vsize=16868 CPUtime=0.95
/proc/24972/stat : 24972 (sugar) S 24970 24972 20976 0 -1 4194304 1424 9947 0 2 5 2 76 12 16 0 1 0 24101417 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 254622609506 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/24972/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.95
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 1.14699
CPU time (s): 1.06984
CPU user time (s): 0.891864
CPU system time (s): 0.177972
CPU usage (%): 93.2736
Max. virtual memory (cumulated for all children) (KiB): 23736

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.891864
system time used= 0.177972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15141
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= 669
involuntary context switches= 559

runsolver used 0.005999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node87 at 2009-07-12 05:46:06
IDJOB=2080651
IDBENCH=57122
IDSOLVER=738
FILE ID=node87/2080651-1247370366
PBS_JOBID= 9507082
Free space on /tmp= 66296 MiB

SOLVER NAME= Sugar v1.14.6+picosat
BENCH NAME= CPAI08/csp/knights/normalized-knights-20-5.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-2080651-1247370366/watcher-2080651-1247370366 -o /tmp/evaluation-result-2080651-1247370366/solver-2080651-1247370366 -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-2080651-1247370366.xml

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

MD5SUM BENCH= 311a040810b6f6cbc5a2df6382a6ca4e
RANDOM SEED=1716147389

node87.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1063464 kB
Buffers:         92356 kB
Cached:         787012 kB
SwapCached:          8 kB
Active:         201980 kB
Inactive:       706456 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1063464 kB
SwapTotal:     4192956 kB
SwapFree:      4192948 kB
Dirty:            1660 kB
Writeback:           0 kB
Mapped:          39360 kB
Slab:            69356 kB
Committed_AS:   199208 kB
PageTables:       1848 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= 66292 MiB
End job on node87 at 2009-07-12 05:46:07