Trace number 2087560

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 0.533917 0.587944

General information on the benchmark

Namecsp/queens/
normalized-queens-4.xml
MD5SUMcf9ea9a9e71ccfcd7a72eb217145a091
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 benchmark0.004998
Satisfiable
(Un)Satisfiability was proved
Number of variables4
Number of constraints6
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension6
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 10:12:53 2009
0.00/0.08	c 0	PID 25076
0.07/0.08	c 0	HOST node47.alineos.net
0.07/0.08	c 0	CONVERTING HOME/instance-2087560-1247386373.xml TO HOME/temp.csp
0.07/0.08	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.XML2CSP -v -v 'HOME/instance-2087560-1247386373.xml' 'HOME/temp.csp'
0.07/0.23	c 0	1 domains, 4 variables, 1 predicates, 0 relations, 6 constraints
0.07/0.23	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.07/0.23	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'
0.21/0.32	c 0	Parsing HOME/temp.csp
0.21/0.33	c 0	parsed 12 expressions
0.21/0.34	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.34	c 0	Converting to clausal form CSP
0.21/0.36	c 0	converted 2 (10%) expressions
0.21/0.36	c 0	converted 3 (20%) expressions
0.21/0.36	c 0	converted 4 (30%) expressions
0.21/0.36	c 0	converted 5 (40%) expressions
0.21/0.36	c 0	converted 6 (50%) expressions
0.21/0.37	c 0	converted 8 (60%) expressions
0.21/0.37	c 0	converted 9 (70%) expressions
0.21/0.37	c 0	converted 10 (80%) expressions
0.21/0.38	c 0	converted 11 (90%) expressions
0.21/0.38	c 0	converted 12 (100%) expressions
0.21/0.38	c 0	CSP : 4 integers, 6 booleans, 24 clauses, largest domain size 4
0.21/0.38	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.38	c 0	Propagation in CSP
0.21/0.38	c 0	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.21/0.38	c 0	CSP : 4 integers, 6 booleans, 24 clauses, largest domain size 4
0.21/0.38	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.38	c 0	Simplifing CSP by introducing new Boolean variables
0.21/0.38	c 0	CSP : 4 integers, 28 booleans, 46 clauses, largest domain size 4
0.21/0.38	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.41	c 0	Encoding CSP to SAT : HOME/temp.cnf
0.21/0.41	c 0	1 (10%) CSP integer variables are encoded (2 clauses, 78 bytes)
0.21/0.41	c 0	2 (20%) CSP integer variables are encoded (4 clauses, 92 bytes)
0.21/0.41	c 0	3 (30%) CSP integer variables are encoded (6 clauses, 106 bytes)
0.21/0.41	c 0	4 (40%) CSP integer variables are encoded (8 clauses, 124 bytes)
0.21/0.42	c 0	5 (10%) CSP clauses are encoded (23 clauses, 266 bytes)
0.21/0.42	c 0	10 (20%) CSP clauses are encoded (38 clauses, 421 bytes)
0.21/0.42	c 0	14 (30%) CSP clauses are encoded (44 clauses, 474 bytes)
0.21/0.42	c 0	19 (40%) CSP clauses are encoded (57 clauses, 610 bytes)
0.21/0.42	c 0	23 (50%) CSP clauses are encoded (64 clauses, 678 bytes)
0.21/0.42	c 0	28 (60%) CSP clauses are encoded (76 clauses, 792 bytes)
0.21/0.42	c 0	33 (70%) CSP clauses are encoded (91 clauses, 950 bytes)
0.21/0.42	c 0	37 (80%) CSP clauses are encoded (98 clauses, 1021 bytes)
0.21/0.43	c 0	42 (90%) CSP clauses are encoded (112 clauses, 1167 bytes)
0.21/0.43	c 0	46 (100%) CSP clauses are encoded (122 clauses, 1280 bytes)
0.21/0.43	c 0	46 CSP clauses encoded
0.21/0.43	c 0	Writing map file : HOME/temp.map
0.21/0.43	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.43	c 0	SAT : 40 SAT variables, 122 SAT clauses, 1280 bytes
0.21/0.43	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.21/0.46	c 0	SOLVING HOME/temp.cnf
0.21/0.46	c 0	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.21/0.47	c 0	This is MiniSat 2.0 beta
0.21/0.47	c 0	WARNING: for repeatability, setting FPU to use double precision
0.21/0.47	c 0	============================[ Problem Statistics ]=============================
0.21/0.47	c 0	|                                                                             |
0.21/0.47	c 0	|  Number of variables:  40                                                   |
0.21/0.47	c 0	|  Number of clauses:    122                                                  |
0.21/0.47	c 0	|  Parsing time:         0.00         s                                       |
0.21/0.47	c 0	============================[ Search Statistics ]==============================
0.21/0.47	c 0	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.21/0.47	c 0	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.21/0.47	c 0	===============================================================================
0.21/0.47	c 0	|         0 |      39      121      303 |       40        0    nan |  0.000 % |
0.21/0.47	c 0	===============================================================================
0.21/0.47	c 0	restarts              : 1
0.21/0.47	c 0	conflicts             : 4              (4004 /sec)
0.21/0.47	c 0	decisions             : 8              (0.00 % random) (8008 /sec)
0.21/0.47	c 0	propagations          : 96             (96096 /sec)
0.21/0.47	c 0	conflict literals     : 11             (15.38 % deleted)
0.21/0.47	c 0	Memory used           : 1.77 MB
0.21/0.47	c 0	CPU time              : 0.000999 s
0.21/0.47	c 0	
0.21/0.47	c 0	SATISFIABLE
0.21/0.47	c 0	DECODING HOME/temp.out WITH HOME/temp.map
0.21/0.47	c 0	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'
0.40/0.55	c 0	Decoding HOME/temp.out
0.40/0.57	s SATISFIABLE
0.40/0.57	v 2 4 1 3
0.40/0.58	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.40/0.58	c 0	CPU 0.51 (0.05 0.02 0.34 0.1)
0.40/0.58	c 0	END Sun Jul 12 10:12:53 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-2087560-1247386373/watcher-2087560-1247386373 -o /tmp/evaluation-result-2087560-1247386373/solver-2087560-1247386373 -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-2087560-1247386373.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: 1.92 2.01 2.06 4/84 25076
/proc/meminfo: memFree=1383352/2055920 swapFree=4192812/4192956
[pid=25076] ppid=25074 vsize=4708 CPUtime=0
/proc/25076/stat : 25076 (sugar) R 25074 25076 24338 0 -1 4194304 56 0 0 0 0 0 0 0 20 0 1 0 25700980 4820992 41 996147200 4194304 4206940 548682068608 18446744073709551615 208714924752 0 0 4096 0 0 0 0 17 1 0 0
/proc/25076/statm: 1177 41 31 3 0 8 0

[startup+0.0842281 s]
/proc/loadavg: 1.92 2.01 2.06 4/84 25076
/proc/meminfo: memFree=1383352/2055920 swapFree=4192812/4192956
[pid=25076] ppid=25074 vsize=16740 CPUtime=0.07
/proc/25076/stat : 25076 (sugar) S 25074 25076 24338 0 -1 4194304 1152 0 0 0 5 2 0 0 18 0 1 0 25700980 17141760 1107 996147200 4194304 4206940 548682068608 18446744073709551615 208726437986 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25076/statm: 4185 1107 406 3 0 764 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16740

[startup+0.100924 s]
/proc/loadavg: 1.92 2.01 2.06 4/84 25076
/proc/meminfo: memFree=1383352/2055920 swapFree=4192812/4192956
[pid=25076] ppid=25074 vsize=16868 CPUtime=0.07
/proc/25076/stat : 25076 (sugar) S 25074 25076 24338 0 -1 4194304 1227 128 0 0 5 2 0 0 19 0 1 0 25700980 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 208726437986 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25076/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.301945 s]
/proc/loadavg: 1.92 2.01 2.06 4/84 25076
/proc/meminfo: memFree=1383352/2055920 swapFree=4192812/4192956
[pid=25076] ppid=25074 vsize=16868 CPUtime=0.21
/proc/25076/stat : 25076 (sugar) S 25074 25076 24338 0 -1 4194304 1292 4066 0 1 5 2 11 3 16 0 1 0 25700980 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 208726437986 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25076/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+0.50197 s]
/proc/loadavg: 1.92 2.01 2.06 4/84 25076
/proc/meminfo: memFree=1383352/2055920 swapFree=4192812/4192956
[pid=25076] ppid=25074 vsize=16868 CPUtime=0.4
/proc/25076/stat : 25076 (sugar) S 25074 25076 24338 0 -1 4194304 1424 9609 0 2 5 2 27 6 17 0 1 0 25700980 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 208726437986 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25076/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 0.587944
CPU time (s): 0.533917
CPU user time (s): 0.401938
CPU system time (s): 0.131979
CPU usage (%): 90.8109
Max. virtual memory (cumulated for all children) (KiB): 16868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.401938
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= 14806
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= 470
involuntary context switches= 386

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node47 at 2009-07-12 10:12:53
IDJOB=2087560
IDBENCH=58739
IDSOLVER=739
FILE ID=node47/2087560-1247386373
PBS_JOBID= 9507311
Free space on /tmp= 66440 MiB

SOLVER NAME= Sugar v1.14.6+minisat
BENCH NAME= CPAI08/csp/queens/normalized-queens-4.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-2087560-1247386373/watcher-2087560-1247386373 -o /tmp/evaluation-result-2087560-1247386373/solver-2087560-1247386373 -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-2087560-1247386373.xml

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

MD5SUM BENCH= cf9ea9a9e71ccfcd7a72eb217145a091
RANDOM SEED=1203346120

node47.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		: 3000.218
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		: 3000.218
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:       1383832 kB
Buffers:         14704 kB
Cached:         115108 kB
SwapCached:          0 kB
Active:         580528 kB
Inactive:        39420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1383832 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1324 kB
Writeback:           0 kB
Mapped:         505868 kB
Slab:            36432 kB
Committed_AS:   884892 kB
PageTables:       2784 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= 66440 MiB
End job on node47 at 2009-07-12 10:12:53