Trace number 2082291

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+minisatSAT 0.542916 0.596996

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-3.xml
MD5SUM106804da3e01f843ca5d9120fa0a4072
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 benchmark0.016996
Satisfiable
(Un)Satisfiability was proved
Number of variables6
Number of constraints18
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension18
Global constraints used (with number of constraints)

Solver Data 

0.00/0.08	c 0	Sugar v1-14-6 + HOME/minisat
0.00/0.08	c 0	BEGIN Sun Jul 12 07:01:24 2009
0.00/0.08	c 0	PID 28034
0.00/0.08	c 0	HOST node50.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2082291-1247374884.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-2082291-1247374884.xml' 'HOME/temp.csp'
0.06/0.23	c 1	1 domains, 6 variables, 2 predicates, 0 relations, 18 constraints
0.06/0.24	c 1	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.24	c 1	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'
0.21/0.32	c 1	Parsing HOME/temp.csp
0.21/0.34	c 1	parsed 27 expressions
0.21/0.34	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.35	c 1	Converting to clausal form CSP
0.21/0.36	c 1	converted 3 (10%) expressions
0.21/0.37	c 1	converted 6 (20%) expressions
0.21/0.37	c 1	converted 9 (30%) expressions
0.21/0.37	c 1	converted 11 (40%) expressions
0.21/0.38	c 1	converted 14 (50%) expressions
0.21/0.38	c 1	converted 17 (60%) expressions
0.21/0.38	c 1	converted 19 (70%) expressions
0.21/0.38	c 1	converted 22 (80%) expressions
0.21/0.38	c 1	converted 25 (90%) expressions
0.21/0.38	c 1	converted 27 (100%) expressions
0.21/0.38	c 1	CSP : 6 integers, 0 booleans, 21 clauses, largest domain size 4
0.21/0.38	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.38	c 1	Propagation in CSP
0.21/0.39	c 1	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.21/0.39	c 1	CSP : 6 integers, 0 booleans, 21 clauses, largest domain size 4
0.21/0.39	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.39	c 1	Simplifing CSP by introducing new Boolean variables
0.21/0.39	c 1	CSP : 6 integers, 30 booleans, 51 clauses, largest domain size 4
0.21/0.39	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.41	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.21/0.42	c 1	1 (10%) CSP integer variables are encoded (2 clauses, 78 bytes)
0.21/0.42	c 1	2 (20%) CSP integer variables are encoded (3 clauses, 85 bytes)
0.21/0.42	c 1	3 (30%) CSP integer variables are encoded (3 clauses, 85 bytes)
0.21/0.42	c 1	4 (40%) CSP integer variables are encoded (5 clauses, 99 bytes)
0.21/0.42	c 1	5 (50%) CSP integer variables are encoded (6 clauses, 108 bytes)
0.21/0.42	c 1	6 (60%) CSP integer variables are encoded (6 clauses, 108 bytes)
0.21/0.42	c 1	6 (10%) CSP clauses are encoded (18 clauses, 220 bytes)
0.21/0.42	c 1	11 (20%) CSP clauses are encoded (29 clauses, 309 bytes)
0.21/0.42	c 1	16 (30%) CSP clauses are encoded (33 clauses, 341 bytes)
0.21/0.42	c 1	21 (40%) CSP clauses are encoded (40 clauses, 405 bytes)
0.21/0.43	c 1	26 (50%) CSP clauses are encoded (44 clauses, 433 bytes)
0.21/0.43	c 1	31 (60%) CSP clauses are encoded (50 clauses, 479 bytes)
0.21/0.43	c 1	36 (70%) CSP clauses are encoded (53 clauses, 499 bytes)
0.21/0.43	c 1	41 (80%) CSP clauses are encoded (57 clauses, 529 bytes)
0.21/0.43	c 1	46 (90%) CSP clauses are encoded (67 clauses, 627 bytes)
0.21/0.43	c 1	51 (100%) CSP clauses are encoded (75 clauses, 702 bytes)
0.21/0.43	c 1	51 CSP clauses encoded
0.21/0.43	c 1	Writing map file : HOME/temp.map
0.21/0.43	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.43	c 1	SAT : 42 SAT variables, 75 SAT clauses, 702 bytes
0.21/0.43	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.47	c 1	SOLVING HOME/temp.cnf
0.21/0.47	c 1	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.21/0.47	c 1	This is MiniSat 2.0 beta
0.21/0.47	c 1	WARNING: for repeatability, setting FPU to use double precision
0.21/0.47	c 1	============================[ Problem Statistics ]=============================
0.21/0.47	c 1	|                                                                             |
0.21/0.47	c 1	|  Number of variables:  42                                                   |
0.21/0.47	c 1	|  Number of clauses:    75                                                   |
0.21/0.47	c 1	|  Parsing time:         0.00         s                                       |
0.21/0.47	c 1	============================[ Search Statistics ]==============================
0.21/0.47	c 1	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.21/0.47	c 1	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.21/0.47	c 1	===============================================================================
0.21/0.47	c 1	|         0 |      26       59      132 |       19        0    nan |  0.000 % |
0.21/0.47	c 1	===============================================================================
0.21/0.47	c 1	restarts              : 1
0.21/0.47	c 1	conflicts             : 2              (inf /sec)
0.21/0.47	c 1	decisions             : 6              (0.00 % random) (inf /sec)
0.21/0.47	c 1	propagations          : 57             (inf /sec)
0.21/0.47	c 1	conflict literals     : 6              (14.29 % deleted)
0.21/0.47	c 1	Memory used           : 1.77 MB
0.21/0.47	c 1	CPU time              : 0 s
0.21/0.47	c 1	
0.21/0.47	c 1	SATISFIABLE
0.21/0.47	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.21/0.47	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'
0.42/0.56	c 1	Decoding HOME/temp.out
0.42/0.58	s SATISFIABLE
0.42/0.58	v 2 0 1 4 3 5
0.42/0.59	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.59	c 1	CPU 0.52 (0.05 0.02 0.38 0.07)
0.42/0.59	c 1	END Sun Jul 12 07:01:25 2009

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2082291-1247374884/watcher-2082291-1247374884 -o /tmp/evaluation-result-2082291-1247374884/solver-2082291-1247374884 -C 1800 -W 2000 -M 900 HOME/sugar -c -vv -memlimit=900 -jar=HOME/sugar-v1-14-6.jar -solver=HOME/minisat -tmp=HOME/temp HOME/instance-2082291-1247374884.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: 2.10 2.07 2.02 4/81 28034
/proc/meminfo: memFree=1780744/2055920 swapFree=4192812/4192956
[pid=28034] ppid=28032 vsize=12268 CPUtime=0
/proc/28034/stat : 28034 (sugar) R 28032 28034 23333 0 -1 4194304 348 0 0 0 0 0 0 0 23 0 1 0 24552048 12562432 316 996147200 4194304 4206940 548682068608 18446744073709551615 240586374142 0 0 4224 0 0 0 0 17 1 0 0
/proc/28034/statm: 3067 316 241 3 0 167 0

[startup+0.097428 s]
/proc/loadavg: 2.10 2.07 2.02 4/81 28034
/proc/meminfo: memFree=1780744/2055920 swapFree=4192812/4192956
[pid=28034] ppid=28032 vsize=16868 CPUtime=0.06
/proc/28034/stat : 28034 (sugar) S 28032 28034 23333 0 -1 4194304 1227 128 0 0 5 1 0 0 24 0 1 0 24552048 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 240586371170 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28034/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.110545 s]
/proc/loadavg: 2.10 2.07 2.02 4/81 28034
/proc/meminfo: memFree=1780744/2055920 swapFree=4192812/4192956
[pid=28034] ppid=28032 vsize=16868 CPUtime=0.06
/proc/28034/stat : 28034 (sugar) S 28032 28034 23333 0 -1 4194304 1227 128 0 0 5 1 0 0 24 0 1 0 24552048 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 240586371170 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28034/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301246 s]
/proc/loadavg: 2.10 2.07 2.02 4/81 28034
/proc/meminfo: memFree=1780744/2055920 swapFree=4192812/4192956
[pid=28034] ppid=28032 vsize=16868 CPUtime=0.21
/proc/28034/stat : 28034 (sugar) S 28032 28034 23333 0 -1 4194304 1292 4141 0 1 5 1 13 2 16 0 1 0 24552048 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 240586371170 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28034/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.21
Current children cumulated vsize (KiB) 16868

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

[startup+0.502265 s]
/proc/loadavg: 2.10 2.07 2.02 4/81 28034
/proc/meminfo: memFree=1780744/2055920 swapFree=4192812/4192956
[pid=28034] ppid=28032 vsize=16868 CPUtime=0.42
/proc/28034/stat : 28034 (sugar) S 28032 28034 23333 0 -1 4194304 1424 9687 0 2 5 2 30 5 17 0 1 0 24552048 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 240586371170 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28034/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.42
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 0.596996
CPU time (s): 0.542916
CPU user time (s): 0.448931
CPU system time (s): 0.093985
CPU usage (%): 90.9413
Max. virtual memory (cumulated for all children) (KiB): 16868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.448931
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14884
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= 461
involuntary context switches= 392

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node50 at 2009-07-12 07:01:24
IDJOB=2082291
IDBENCH=57564
IDSOLVER=739
FILE ID=node50/2082291-1247374884
PBS_JOBID= 9507088
Free space on /tmp= 66428 MiB

SOLVER NAME= Sugar v1.14.6+minisat
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-3.xml
COMMAND LINE= DIR/sugar -c -vv -memlimit=MEMLIMIT -jar="DIR/sugar-v1-14-6.jar" -solver="DIR/minisat" -tmp="TMPDIR/temp" BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082291-1247374884/watcher-2082291-1247374884 -o /tmp/evaluation-result-2082291-1247374884/solver-2082291-1247374884 -C 1800 -W 2000 -M 900  HOME/sugar -c -vv -memlimit=900 -jar="HOME/sugar-v1-14-6.jar" -solver="HOME/minisat" -tmp="HOME/temp" HOME/instance-2082291-1247374884.xml

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

MD5SUM BENCH= 106804da3e01f843ca5d9120fa0a4072
RANDOM SEED=1066947310

node50.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		: 3000.231
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		: 3000.231
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:       1781224 kB
Buffers:          8164 kB
Cached:          72076 kB
SwapCached:          0 kB
Active:         182092 kB
Inactive:        38300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1781224 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1788 kB
Writeback:           0 kB
Mapped:         160620 kB
Slab:            39276 kB
Committed_AS:   382656 kB
PageTables:       2172 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= 66424 MiB
End job on node50 at 2009-07-12 07:01:25