Trace number 2086856

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+minisatUNSAT 0.709891 0.791828

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-4.xml
MD5SUMb37d50180c85d43bb3d8c25e0f871b0d
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 benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables16
Number of constraints132
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension132
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 09:42:07 2009
0.00/0.08	c 0	PID 27072
0.06/0.08	c 0	HOST node51.alineos.net
0.06/0.08	c 0	CONVERTING HOME/instance-2086856-1247384527.xml TO HOME/temp.csp
0.06/0.08	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.XML2CSP -v -v 'HOME/instance-2086856-1247384527.xml' 'HOME/temp.csp'
0.06/0.30	c 0	1 domains, 16 variables, 2 predicates, 0 relations, 132 constraints
0.06/0.35	c 1	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.35	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'
0.27/0.43	c 1	Parsing HOME/temp.csp
0.27/0.45	c 1	parsed 151 expressions
0.27/0.46	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.27/0.46	c 1	Converting to clausal form CSP
0.27/0.48	c 1	converted 16 (10%) expressions
0.27/0.50	c 1	converted 31 (20%) expressions
0.27/0.51	c 1	converted 46 (30%) expressions
0.27/0.52	c 1	converted 61 (40%) expressions
0.27/0.53	c 1	converted 76 (50%) expressions
0.27/0.54	c 1	converted 91 (60%) expressions
0.27/0.54	c 1	converted 106 (70%) expressions
0.27/0.55	c 1	converted 121 (80%) expressions
0.27/0.55	c 1	converted 136 (90%) expressions
0.27/0.56	c 1	converted 151 (100%) expressions
0.27/0.56	c 1	CSP : 16 integers, 0 booleans, 143 clauses, largest domain size 14
0.27/0.56	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.27/0.56	c 1	Propagation in CSP
0.27/0.58	c 1	51 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.27/0.58	c 1	CSP : 16 integers, 0 booleans, 143 clauses, largest domain size 9
0.27/0.58	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.27/0.58	c 1	Simplifing CSP by introducing new Boolean variables
0.27/0.59	c 1	CSP : 16 integers, 234 booleans, 377 clauses, largest domain size 9
0.27/0.59	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.27/0.61	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.27/0.62	c 1	2 (10%) CSP integer variables are encoded (11 clauses, 148 bytes)
0.27/0.62	c 1	4 (20%) CSP integer variables are encoded (12 clauses, 157 bytes)
0.27/0.62	c 1	5 (30%) CSP integer variables are encoded (19 clauses, 220 bytes)
0.27/0.62	c 1	7 (40%) CSP integer variables are encoded (24 clauses, 265 bytes)
0.27/0.62	c 1	8 (50%) CSP integer variables are encoded (24 clauses, 265 bytes)
0.27/0.62	c 1	10 (60%) CSP integer variables are encoded (35 clauses, 364 bytes)
0.27/0.62	c 1	12 (70%) CSP integer variables are encoded (36 clauses, 373 bytes)
0.27/0.62	c 1	13 (80%) CSP integer variables are encoded (43 clauses, 436 bytes)
0.27/0.62	c 1	15 (90%) CSP integer variables are encoded (48 clauses, 481 bytes)
0.27/0.62	c 1	16 (100%) CSP integer variables are encoded (48 clauses, 481 bytes)
0.27/0.63	c 1	38 (10%) CSP clauses are encoded (155 clauses, 1564 bytes)
0.27/0.63	c 1	76 (20%) CSP clauses are encoded (214 clauses, 2151 bytes)
0.27/0.63	c 1	114 (30%) CSP clauses are encoded (244 clauses, 2416 bytes)
0.27/0.64	c 1	151 (40%) CSP clauses are encoded (267 clauses, 2610 bytes)
0.27/0.64	c 1	189 (50%) CSP clauses are encoded (351 clauses, 3570 bytes)
0.27/0.64	c 1	227 (60%) CSP clauses are encoded (424 clauses, 4406 bytes)
0.27/0.64	c 1	264 (70%) CSP clauses are encoded (459 clauses, 4748 bytes)
0.27/0.65	c 1	302 (80%) CSP clauses are encoded (508 clauses, 5302 bytes)
0.27/0.65	c 1	340 (90%) CSP clauses are encoded (599 clauses, 6311 bytes)
0.27/0.65	c 1	377 (100%) CSP clauses are encoded (650 clauses, 6879 bytes)
0.27/0.65	c 1	377 CSP clauses encoded
0.27/0.66	c 1	Writing map file : HOME/temp.map
0.27/0.66	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.27/0.66	c 1	SAT : 294 SAT variables, 650 SAT clauses, 6879 bytes
0.27/0.66	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.27/0.67	c 1	SOLVING HOME/temp.cnf
0.27/0.67	c 1	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.27/0.67	c 1	This is MiniSat 2.0 beta
0.27/0.67	c 1	WARNING: for repeatability, setting FPU to use double precision
0.27/0.67	c 1	============================[ Problem Statistics ]=============================
0.27/0.67	c 1	|                                                                             |
0.27/0.67	c 1	|  Number of variables:  294                                                  |
0.27/0.67	c 1	|  Number of clauses:    650                                                  |
0.27/0.67	c 1	|  Parsing time:         0.00         s                                       |
0.27/0.67	c 1	Solved by unit propagation
0.27/0.67	c 1	UNSATISFIABLE
0.27/0.67	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.27/0.67	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'
0.57/0.75	c 1	Decoding HOME/temp.out
0.57/0.77	s UNSATISFIABLE
0.57/0.78	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.57/0.79	c 1	CPU 0.67 (0.05 0.01 0.52 0.09)
0.57/0.79	c 1	END Sun Jul 12 09:42:08 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-2086856-1247384527/watcher-2086856-1247384527 -o /tmp/evaluation-result-2086856-1247384527/solver-2086856-1247384527 -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-2086856-1247384527.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 2.03 2.01 4/80 27072
/proc/meminfo: memFree=1825104/2055920 swapFree=4192812/4192956
[pid=27072] ppid=27070 vsize=18576 CPUtime=0
/proc/27072/stat : 27072 (runsolver) R 27070 27072 26571 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 25516214 19021824 284 996147200 4194304 4302564 548682068304 18446744073709551615 235371293991 0 0 4096 24578 0 0 0 17 1 0 0
/proc/27072/statm: 4644 284 249 26 0 2626 0

[startup+0.0816031 s]
/proc/loadavg: 2.10 2.03 2.01 4/80 27072
/proc/meminfo: memFree=1825104/2055920 swapFree=4192812/4192956
[pid=27072] ppid=27070 vsize=16872 CPUtime=0.06
/proc/27072/stat : 27072 (sugar) S 27070 27072 26571 0 -1 4194304 1159 0 0 0 5 1 0 0 20 0 1 0 25516214 17276928 1108 996147200 4194304 4206940 548682068608 18446744073709551615 235380191330 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27072/statm: 4218 1108 406 3 0 797 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16872

[startup+0.107132 s]
/proc/loadavg: 2.10 2.03 2.01 4/80 27072
/proc/meminfo: memFree=1825104/2055920 swapFree=4192812/4192956
[pid=27072] ppid=27070 vsize=16868 CPUtime=0.06
/proc/27072/stat : 27072 (sugar) S 27070 27072 26571 0 -1 4194304 1227 128 0 0 5 1 0 0 21 0 1 0 25516214 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 235380191330 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27072/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301624 s]
/proc/loadavg: 2.10 2.03 2.01 4/80 27072
/proc/meminfo: memFree=1825104/2055920 swapFree=4192812/4192956
[pid=27072] ppid=27070 vsize=16868 CPUtime=0.06
/proc/27072/stat : 27072 (sugar) S 27070 27072 26571 0 -1 4194304 1245 128 0 0 5 1 0 0 15 0 1 0 25516214 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 235380191330 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27072/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.701663 s]
/proc/loadavg: 2.10 2.03 2.01 4/80 27072
/proc/meminfo: memFree=1825104/2055920 swapFree=4192812/4192956
[pid=27072] ppid=27070 vsize=16868 CPUtime=0.57
/proc/27072/stat : 27072 (sugar) S 27070 27072 26571 0 -1 4194304 1424 9893 0 2 5 1 44 7 17 0 1 0 25516214 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 235380191330 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27072/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.57
Current children cumulated vsize (KiB) 16868

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

Child status: 0
Real time (s): 0.791828
CPU time (s): 0.709891
CPU user time (s): 0.58991
CPU system time (s): 0.119981
CPU usage (%): 89.6522
Max. virtual memory (cumulated for all children) (KiB): 16872

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.58991
system time used= 0.119981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15086
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= 847
involuntary context switches= 770

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node51 at 2009-07-12 09:42:07
IDJOB=2086856
IDBENCH=58650
IDSOLVER=739
FILE ID=node51/2086856-1247384527
PBS_JOBID= 9507269
Free space on /tmp= 66204 MiB

SOLVER NAME= Sugar v1.14.6+minisat
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-4.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-2086856-1247384527/watcher-2086856-1247384527 -o /tmp/evaluation-result-2086856-1247384527/solver-2086856-1247384527 -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-2086856-1247384527.xml

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

MD5SUM BENCH= b37d50180c85d43bb3d8c25e0f871b0d
RANDOM SEED=1381595872

node51.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		: 3000.225
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		: 3000.225
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:       1825584 kB
Buffers:         12908 kB
Cached:          69712 kB
SwapCached:          0 kB
Active:         151056 kB
Inactive:        26872 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1825584 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1856 kB
Writeback:           0 kB
Mapped:         113144 kB
Slab:            37544 kB
Committed_AS:   938868 kB
PageTables:       1960 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= 66204 MiB
End job on node51 at 2009-07-12 09:42:08