Trace number 2080530

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 1.90971 2.0069

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-20-5-mul.xml
MD5SUM7ece432996b72b47d9d3fdb19a06127f
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 benchmark1.41978
Satisfiable
(Un)Satisfiability was proved
Number of variables25
Number of constraints300
Maximum constraint arity2
Maximum domain size400
Number of constraints which are defined in extension0
Number of constraints which are defined in intension300
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 05:40:43 2009
0.00/0.08	c 0	PID 25307
0.00/0.08	c 0	HOST node30.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2080530-1247370043.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-2080530-1247370043.xml' 'HOME/temp.csp'
0.06/0.45	c 1	2 domains, 25 variables, 4 predicates, 0 relations, 300 constraints
0.06/0.46	c 1	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.46	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'
0.42/0.54	c 1	Parsing HOME/temp.csp
0.42/0.58	c 1	parsed 331 expressions
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	Converting to clausal form CSP
0.42/0.63	c 1	converted 34 (10%) expressions
0.42/0.68	c 1	converted 67 (20%) expressions
0.42/0.70	c 1	converted 100 (30%) expressions
0.42/0.79	c 1	converted 133 (40%) expressions
0.42/0.80	c 1	converted 166 (50%) expressions
0.42/0.82	c 1	converted 199 (60%) expressions
0.42/0.83	c 1	converted 232 (70%) expressions
0.42/0.84	c 1	converted 265 (80%) expressions
0.42/0.84	c 1	converted 298 (90%) expressions
0.42/0.85	c 1	converted 331 (100%) expressions
0.42/0.86	c 1	CSP : 45 integers, 200 booleans, 950 clauses, largest domain size 400
0.42/0.86	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.86	c 1	Propagation in CSP
0.42/0.87	c 1	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.42/0.87	c 1	CSP : 45 integers, 200 booleans, 950 clauses, largest domain size 400
0.42/0.87	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.87	c 1	Simplifing CSP by introducing new Boolean variables
0.42/0.89	c 1	CSP : 45 integers, 1208 booleans, 1958 clauses, largest domain size 400
0.42/0.89	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.92	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.42/0.93	c 1	5 (10%) CSP integer variables are encoded (90 clauses, 857 bytes)
0.42/0.93	c 1	9 (20%) CSP integer variables are encoded (162 clauses, 1642 bytes)
0.42/0.93	c 1	14 (30%) CSP integer variables are encoded (252 clauses, 2632 bytes)
0.42/0.93	c 1	18 (40%) CSP integer variables are encoded (324 clauses, 3424 bytes)
0.42/0.94	c 1	23 (50%) CSP integer variables are encoded (1554 clauses, 18107 bytes)
0.42/0.94	c 1	27 (60%) CSP integer variables are encoded (2386 clauses, 28923 bytes)
0.42/0.94	c 1	32 (70%) CSP integer variables are encoded (2476 clauses, 30093 bytes)
0.42/0.94	c 1	36 (80%) CSP integer variables are encoded (2548 clauses, 31029 bytes)
0.42/0.94	c 1	41 (90%) CSP integer variables are encoded (2638 clauses, 32199 bytes)
0.42/0.94	c 1	45 (100%) CSP integer variables are encoded (2710 clauses, 33135 bytes)
0.42/0.98	c 1	196 (10%) CSP clauses are encoded (12610 clauses, 202871 bytes)
0.42/0.99	c 1	392 (20%) CSP clauses are encoded (14816 clauses, 237097 bytes)
0.94/1.01	c 1	588 (30%) CSP clauses are encoded (16970 clauses, 270767 bytes)
0.94/1.02	c 1	784 (40%) CSP clauses are encoded (19162 clauses, 305506 bytes)
0.94/1.03	c 1	979 (50%) CSP clauses are encoded (21486 clauses, 343975 bytes)
0.94/1.04	c 1	1175 (60%) CSP clauses are encoded (23899 clauses, 384395 bytes)
0.94/1.05	c 1	1371 (70%) CSP clauses are encoded (26359 clauses, 425632 bytes)
0.94/1.06	c 1	1567 (80%) CSP clauses are encoded (28915 clauses, 468700 bytes)
0.94/1.06	c 1	1763 (90%) CSP clauses are encoded (31601 clauses, 514110 bytes)
0.94/1.08	c 1	1958 (100%) CSP clauses are encoded (38158 clauses, 633772 bytes)
0.94/1.08	c 1	1958 CSP clauses encoded
0.94/1.08	c 1	Writing map file : HOME/temp.map
0.94/1.08	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.94/1.08	c 1	SAT : 3963 SAT variables, 38158 SAT clauses, 633772 bytes
0.94/1.08	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.94/1.10	c 1	SOLVING HOME/temp.cnf
0.94/1.10	c 1	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
1.04/1.84	c 2	DECODING HOME/temp.out WITH HOME/temp.map
1.04/1.84	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'
1.78/1.92	c 2	Decoding HOME/temp.out
1.78/1.94	s UNSATISFIABLE
1.78/1.95	c 2	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.78/2.00	c 2	CPU 1.88 (0.06 0.01 1.52 0.29)
1.78/2.00	c 2	END Sun Jul 12 05:40:45 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-2080530-1247370043/watcher-2080530-1247370043 -o /tmp/evaluation-result-2080530-1247370043/solver-2080530-1247370043 -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-2080530-1247370043.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: 2.00 2.02 2.04 4/74 25307
/proc/meminfo: memFree=1489160/2055920 swapFree=4192812/4192956
[pid=25307] ppid=25305 vsize=12268 CPUtime=0
/proc/25307/stat : 25307 (sugar) R 25305 25307 18836 0 -1 4194304 348 0 0 0 0 0 0 0 20 0 1 0 24070450 12562432 316 996147200 4194304 4206940 548682068608 18446744073709551615 264907749989 0 2147483391 4224 0 0 0 0 17 1 0 0
/proc/25307/statm: 3067 316 241 3 0 167 0

[startup+0.0864591 s]
/proc/loadavg: 2.00 2.02 2.04 4/74 25307
/proc/meminfo: memFree=1489160/2055920 swapFree=4192812/4192956
[pid=25307] ppid=25305 vsize=16868 CPUtime=0.06
/proc/25307/stat : 25307 (sugar) S 25305 25307 18836 0 -1 4194304 1227 128 0 0 5 1 0 0 19 0 1 0 24070450 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25307/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.101444 s]
/proc/loadavg: 2.00 2.02 2.04 4/74 25307
/proc/meminfo: memFree=1489160/2055920 swapFree=4192812/4192956
[pid=25307] ppid=25305 vsize=16868 CPUtime=0.06
/proc/25307/stat : 25307 (sugar) S 25305 25307 18836 0 -1 4194304 1227 128 0 0 5 1 0 0 19 0 1 0 24070450 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25307/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301467 s]
/proc/loadavg: 2.00 2.02 2.04 4/74 25307
/proc/meminfo: memFree=1489160/2055920 swapFree=4192812/4192956
[pid=25307] ppid=25305 vsize=16868 CPUtime=0.06
/proc/25307/stat : 25307 (sugar) S 25305 25307 18836 0 -1 4194304 1227 128 0 0 5 1 0 0 19 0 1 0 24070450 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25307/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.701527 s]
/proc/loadavg: 2.00 2.02 2.04 4/74 25307
/proc/meminfo: memFree=1489160/2055920 swapFree=4192812/4192956
[pid=25307] ppid=25305 vsize=16868 CPUtime=0.42
/proc/25307/stat : 25307 (sugar) S 25305 25307 18836 0 -1 4194304 1309 4560 0 1 5 1 33 3 15 0 1 0 24070450 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25307/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.42
Current children cumulated vsize (KiB) 16868

[startup+1.50164 s]
/proc/loadavg: 2.00 2.02 2.04 3/85 25329
/proc/meminfo: memFree=1473328/2055920 swapFree=4192812/4192956
[pid=25307] ppid=25305 vsize=16868 CPUtime=1.04
/proc/25307/stat : 25307 (sugar) S 25305 25307 18836 0 -1 4194304 1364 11264 0 2 6 1 89 8 16 0 1 0 24070450 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25307/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 1.04
Current children cumulated vsize (KiB) 16868

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

[startup+1.90171 s]
/proc/loadavg: 2.00 2.02 2.04 3/85 25329
/proc/meminfo: memFree=1473328/2055920 swapFree=4192812/4192956
[pid=25307] ppid=25305 vsize=16868 CPUtime=1.78
/proc/25307/stat : 25307 (sugar) S 25305 25307 18836 0 -1 4194304 1425 12044 0 2 6 1 144 27 16 0 1 0 24070450 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25307/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 1.78
Current children cumulated vsize (KiB) 16868

[startup+2.00171 s]
/proc/loadavg: 2.00 2.02 2.04 3/85 25329
/proc/meminfo: memFree=1473328/2055920 swapFree=4192812/4192956
[pid=25307] ppid=25305 vsize=16868 CPUtime=1.78
/proc/25307/stat : 25307 (sugar) S 25305 25307 18836 0 -1 4194304 1445 12044 0 2 6 1 144 27 15 0 1 0 24070450 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25307/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 1.78
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 2.0069
CPU time (s): 1.90971
CPU user time (s): 1.59276
CPU system time (s): 0.316951
CPU usage (%): 95.1573
Max. virtual memory (cumulated for all children) (KiB): 890796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.59276
system time used= 0.316951
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17245
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= 1261
involuntary context switches= 1122

runsolver used 0.008998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node30 at 2009-07-12 05:40:43
IDJOB=2080530
IDBENCH=57103
IDSOLVER=738
FILE ID=node30/2080530-1247370043
PBS_JOBID= 9507002
Free space on /tmp= 66328 MiB

SOLVER NAME= Sugar v1.14.6+picosat
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-20-5-mul.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-2080530-1247370043/watcher-2080530-1247370043 -o /tmp/evaluation-result-2080530-1247370043/solver-2080530-1247370043 -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-2080530-1247370043.xml

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

MD5SUM BENCH= 7ece432996b72b47d9d3fdb19a06127f
RANDOM SEED=640134527

node30.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		: 3000.277
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		: 3000.277
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:       1489576 kB
Buffers:         44284 kB
Cached:         326248 kB
SwapCached:          0 kB
Active:         317916 kB
Inactive:       171324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1489576 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1332 kB
Writeback:           0 kB
Mapped:         129824 kB
Slab:            62100 kB
Committed_AS:   300188 kB
PageTables:       2000 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= 66328 MiB
End job on node30 at 2009-07-12 05:40:45