Trace number 2082367

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 2.35664 2.36189

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-9.xml
MD5SUMa6e5333bd6daf1b78d27284171344f47
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 benchmark0.199968
Satisfiable
(Un)Satisfiability was proved
Number of variables18
Number of constraints162
Maximum constraint arity2
Maximum domain size18
Number of constraints which are defined in extension0
Number of constraints which are defined in intension162
Global constraints used (with number of constraints)

Solver Data 

0.00/0.08	c 0	Sugar v1-14-6 + HOME/picosat
0.00/0.08	c 0	BEGIN Sun Jul 12 07:03:26 2009
0.00/0.08	c 0	PID 23260
0.00/0.08	c 0	HOST node24.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2082367-1247375006.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-2082367-1247375006.xml' 'HOME/temp.csp'
0.07/0.28	c 0	1 domains, 18 variables, 2 predicates, 0 relations, 162 constraints
0.07/0.29	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.07/0.29	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'
0.30/0.37	c 1	Parsing HOME/temp.csp
0.30/0.39	c 1	parsed 183 expressions
0.30/0.40	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.30/0.40	c 1	Converting to clausal form CSP
0.30/0.42	c 1	converted 19 (10%) expressions
0.30/0.44	c 1	converted 37 (20%) expressions
0.30/0.45	c 1	converted 55 (30%) expressions
0.30/0.46	c 1	converted 74 (40%) expressions
0.30/0.47	c 1	converted 92 (50%) expressions
0.30/0.48	c 1	converted 110 (60%) expressions
0.30/0.48	c 1	converted 129 (70%) expressions
0.30/0.49	c 1	converted 147 (80%) expressions
0.30/0.50	c 1	converted 165 (90%) expressions
0.30/0.50	c 1	converted 183 (100%) expressions
0.30/0.50	c 1	CSP : 18 integers, 0 booleans, 171 clauses, largest domain size 16
0.30/0.50	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.30/0.50	c 1	Propagation in CSP
0.30/0.52	c 1	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.30/0.52	c 1	CSP : 18 integers, 0 booleans, 171 clauses, largest domain size 16
0.30/0.52	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.30/0.52	c 1	Simplifing CSP by introducing new Boolean variables
0.30/0.53	c 1	CSP : 18 integers, 306 booleans, 477 clauses, largest domain size 16
0.30/0.53	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.30/0.55	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.30/0.56	c 1	2 (10%) CSP integer variables are encoded (27 clauses, 290 bytes)
0.30/0.56	c 1	4 (20%) CSP integer variables are encoded (50 clauses, 497 bytes)
0.30/0.56	c 1	6 (30%) CSP integer variables are encoded (69 clauses, 668 bytes)
0.30/0.56	c 1	8 (40%) CSP integer variables are encoded (84 clauses, 803 bytes)
0.30/0.56	c 1	9 (50%) CSP integer variables are encoded (90 clauses, 857 bytes)
0.30/0.56	c 1	11 (60%) CSP integer variables are encoded (117 clauses, 1154 bytes)
0.30/0.56	c 1	13 (70%) CSP integer variables are encoded (140 clauses, 1407 bytes)
0.30/0.56	c 1	15 (80%) CSP integer variables are encoded (159 clauses, 1616 bytes)
0.30/0.56	c 1	17 (90%) CSP integer variables are encoded (174 clauses, 1781 bytes)
0.30/0.56	c 1	18 (100%) CSP integer variables are encoded (180 clauses, 1847 bytes)
0.30/0.57	c 1	48 (10%) CSP clauses are encoded (570 clauses, 6930 bytes)
0.30/0.58	c 1	96 (20%) CSP clauses are encoded (926 clauses, 11759 bytes)
0.30/0.58	c 1	144 (30%) CSP clauses are encoded (1242 clauses, 16031 bytes)
0.30/0.59	c 1	191 (40%) CSP clauses are encoded (1519 clauses, 19761 bytes)
0.30/0.59	c 1	239 (50%) CSP clauses are encoded (1775 clauses, 23174 bytes)
0.30/0.59	c 1	287 (60%) CSP clauses are encoded (2001 clauses, 26201 bytes)
0.30/0.60	c 1	334 (70%) CSP clauses are encoded (2138 clauses, 27953 bytes)
0.30/0.60	c 1	382 (80%) CSP clauses are encoded (2348 clauses, 30856 bytes)
0.30/0.60	c 1	430 (90%) CSP clauses are encoded (2701 clauses, 36184 bytes)
0.30/0.60	c 1	477 (100%) CSP clauses are encoded (3005 clauses, 40733 bytes)
0.30/0.60	c 1	477 CSP clauses encoded
0.30/0.60	c 1	Writing map file : HOME/temp.map
0.30/0.60	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.30/0.60	c 1	SAT : 504 SAT variables, 3005 SAT clauses, 40733 bytes
0.30/0.61	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.30/0.61	c 1	SOLVING HOME/temp.cnf
0.30/0.61	c 1	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
2.18/2.25	c 2	DECODING HOME/temp.out WITH HOME/temp.map
2.18/2.25	c 2	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'
2.24/2.33	c 3	Decoding HOME/temp.out
2.24/2.34	s UNSATISFIABLE
2.24/2.35	c 3	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
2.24/2.36	c 3	CPU 2.33 (0.06 0.01 2.16 0.1)
2.24/2.36	c 3	END Sun Jul 12 07:03:29 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-2082367-1247375006/watcher-2082367-1247375006 -o /tmp/evaluation-result-2082367-1247375006/solver-2082367-1247375006 -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-2082367-1247375006.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: 2.12 2.04 2.01 4/73 23260
/proc/meminfo: memFree=1732672/2055920 swapFree=4192812/4192956
[pid=23260] ppid=23258 vsize=18576 CPUtime=0
/proc/23260/stat : 23260 (runsolver) R 23258 23260 18619 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 24567443 19021824 284 996147200 4194304 4302564 548682068304 18446744073709551615 237788261671 0 0 4096 24578 0 0 0 17 1 0 0
/proc/23260/statm: 4644 284 249 26 0 2626 0

[startup+0.0907091 s]
/proc/loadavg: 2.12 2.04 2.01 4/73 23260
/proc/meminfo: memFree=1732672/2055920 swapFree=4192812/4192956
[pid=23260] ppid=23258 vsize=16868 CPUtime=0.07
/proc/23260/stat : 23260 (sugar) S 23258 23260 18619 0 -1 4194304 1227 128 0 0 6 1 0 0 19 0 1 0 24567443 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 237797159010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23260/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.102705 s]
/proc/loadavg: 2.12 2.04 2.01 4/73 23260
/proc/meminfo: memFree=1732672/2055920 swapFree=4192812/4192956
[pid=23260] ppid=23258 vsize=16868 CPUtime=0.07
/proc/23260/stat : 23260 (sugar) S 23258 23260 18619 0 -1 4194304 1227 128 0 0 6 1 0 0 19 0 1 0 24567443 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 237797159010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23260/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.301744 s]
/proc/loadavg: 2.12 2.04 2.01 4/73 23260
/proc/meminfo: memFree=1732672/2055920 swapFree=4192812/4192956
[pid=23260] ppid=23258 vsize=16868 CPUtime=0.3
/proc/23260/stat : 23260 (sugar) S 23258 23260 18619 0 -1 4194304 1292 4223 0 1 6 1 20 3 16 0 1 0 24567443 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 237797159010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23260/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 16868

[startup+0.702812 s]
/proc/loadavg: 2.12 2.04 2.01 4/73 23260
/proc/meminfo: memFree=1732672/2055920 swapFree=4192812/4192956
[pid=23260] ppid=23258 vsize=16868 CPUtime=0.62
/proc/23260/stat : 23260 (sugar) S 23258 23260 18619 0 -1 4194304 1364 9539 0 2 6 1 49 6 16 0 1 0 24567443 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 237797159010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23260/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.62
Current children cumulated vsize (KiB) 16868

[startup+1.50196 s]
/proc/loadavg: 2.12 2.04 2.01 3/76 23284
/proc/meminfo: memFree=1729256/2055920 swapFree=4192812/4192956
[pid=23260] ppid=23258 vsize=16868 CPUtime=0.62
/proc/23260/stat : 23260 (sugar) S 23258 23260 18619 0 -1 4194304 1364 9539 0 2 6 1 49 6 16 0 1 0 24567443 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 237797159010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23260/statm: 4217 1112 409 3 0 796 0
[pid=23283] ppid=23260 vsize=5356 CPUtime=0
/proc/23283/stat : 23283 (sh) S 23260 23260 18619 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 24567504 5484544 232 996147200 4194304 4889804 548682068832 18446744073709551615 237788259140 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/23283/statm: 1339 232 193 169 0 50 0
[pid=23284] ppid=23283 vsize=712 CPUtime=0.87
/proc/23284/stat : 23284 (picosat) R 23283 23260 18619 0 -1 4194304 133 0 0 0 86 1 0 0 25 0 1 0 24567504 729088 117 996147200 134512640 134931368 4294956256 18446744073709551615 134525918 0 0 4096 0 0 0 0 17 1 0 0
/proc/23284/statm: 178 117 48 102 0 73 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 22936

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

[startup+1.90203 s]
/proc/loadavg: 2.12 2.04 2.01 3/76 23284
/proc/meminfo: memFree=1729256/2055920 swapFree=4192812/4192956
[pid=23260] ppid=23258 vsize=16868 CPUtime=0.62
/proc/23260/stat : 23260 (sugar) S 23258 23260 18619 0 -1 4194304 1364 9539 0 2 6 1 49 6 16 0 1 0 24567443 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 237797159010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23260/statm: 4217 1112 409 3 0 796 0
[pid=23283] ppid=23260 vsize=5356 CPUtime=0
/proc/23283/stat : 23283 (sh) S 23260 23260 18619 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 24567504 5484544 232 996147200 4194304 4889804 548682068832 18446744073709551615 237788259140 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/23283/statm: 1339 232 193 169 0 50 0
[pid=23284] ppid=23283 vsize=712 CPUtime=1.27
/proc/23284/stat : 23284 (picosat) R 23283 23260 18619 0 -1 4194304 137 0 0 0 126 1 0 0 25 0 1 0 24567504 729088 121 996147200 134512640 134931368 4294956256 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/23284/statm: 178 121 48 102 0 73 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 22936

[startup+2.30111 s]
/proc/loadavg: 2.11 2.04 2.01 3/76 23284
/proc/meminfo: memFree=1729064/2055920 swapFree=4192812/4192956
[pid=23260] ppid=23258 vsize=16868 CPUtime=2.24
/proc/23260/stat : 23260 (sugar) S 23258 23260 18619 0 -1 4194304 1425 9967 0 2 6 1 209 8 17 0 1 0 24567443 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 237797159010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23260/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 2.24
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 2.36189
CPU time (s): 2.35664
CPU user time (s): 2.23566
CPU system time (s): 0.120981
CPU usage (%): 99.778
Max. virtual memory (cumulated for all children) (KiB): 22936

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.23566
system time used= 0.120981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15165
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= 768
involuntary context switches= 666

runsolver used 0.004999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node24 at 2009-07-12 07:03:26
IDJOB=2082367
IDBENCH=57578
IDSOLVER=738
FILE ID=node24/2082367-1247375006
PBS_JOBID= 9507004
Free space on /tmp= 66464 MiB

SOLVER NAME= Sugar v1.14.6+picosat
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-9.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-2082367-1247375006/watcher-2082367-1247375006 -o /tmp/evaluation-result-2082367-1247375006/solver-2082367-1247375006 -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-2082367-1247375006.xml

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

MD5SUM BENCH= a6e5333bd6daf1b78d27284171344f47
RANDOM SEED=1296709726

node24.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		: 3000.287
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		: 3000.287
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:       1733152 kB
Buffers:         62940 kB
Cached:         181928 kB
SwapCached:          0 kB
Active:         156664 kB
Inactive:       108156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1733152 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1568 kB
Writeback:           0 kB
Mapped:          30676 kB
Slab:            43172 kB
Committed_AS:   240548 kB
PageTables:       1812 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= 66464 MiB
End job on node24 at 2009-07-12 07:03:29