Trace number 2086052

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 1.05184 1.16543

General information on the benchmark

Namecsp/pigeons/
normalized-pigeons-20-ord.xml
MD5SUM27be955bda8fd33c2641a345649a0635
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 benchmark0.016996
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints380
Maximum constraint arity2
Maximum domain size19
Number of constraints which are defined in extension0
Number of constraints which are defined in intension380
Global constraints used (with number of constraints)

Solver Data 

0.06/0.08	c 0	Sugar v1-14-6 + HOME/picosat
0.06/0.08	c 0	BEGIN Sun Jul 12 09:19:40 2009
0.06/0.08	c 0	PID 26993
0.06/0.08	c 0	HOST node58.alineos.net
0.06/0.08	c 0	CONVERTING HOME/instance-2086052-1247383179.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-2086052-1247383179.xml' 'HOME/temp.csp'
0.07/0.43	c 0	1 domains, 20 variables, 2 predicates, 0 relations, 380 constraints
0.07/0.46	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.07/0.46	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'
0.42/0.54	c 0	Parsing HOME/temp.csp
0.42/0.59	c 0	parsed 403 expressions
0.42/0.59	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.59	c 0	Converting to clausal form CSP
0.42/0.63	c 0	converted 41 (10%) expressions
0.42/0.65	c 0	converted 81 (20%) expressions
0.42/0.66	c 0	converted 121 (30%) expressions
0.42/0.67	c 0	converted 162 (40%) expressions
0.42/0.68	c 0	converted 202 (50%) expressions
0.42/0.69	c 0	converted 242 (60%) expressions
0.42/0.71	c 0	converted 283 (70%) expressions
0.42/0.71	c 0	converted 323 (80%) expressions
0.42/0.72	c 0	converted 363 (90%) expressions
0.42/0.73	c 0	converted 403 (100%) expressions
0.42/0.73	c 0	CSP : 20 integers, 0 booleans, 380 clauses, largest domain size 19
0.42/0.73	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.73	c 0	Propagation in CSP
0.42/0.74	c 0	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.42/0.74	c 0	CSP : 20 integers, 0 booleans, 380 clauses, largest domain size 19
0.42/0.74	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.74	c 0	Simplifing CSP by introducing new Boolean variables
0.42/0.75	c 0	CSP : 20 integers, 380 booleans, 760 clauses, largest domain size 19
0.42/0.75	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.78	c 0	Encoding CSP to SAT : HOME/temp.cnf
0.42/0.78	c 0	2 (10%) CSP integer variables are encoded (34 clauses, 353 bytes)
0.42/0.78	c 0	4 (20%) CSP integer variables are encoded (68 clauses, 659 bytes)
0.42/0.79	c 0	6 (30%) CSP integer variables are encoded (102 clauses, 982 bytes)
0.42/0.79	c 0	8 (40%) CSP integer variables are encoded (136 clauses, 1356 bytes)
0.42/0.79	c 0	10 (50%) CSP integer variables are encoded (170 clauses, 1730 bytes)
0.42/0.79	c 0	12 (60%) CSP integer variables are encoded (204 clauses, 2104 bytes)
0.42/0.79	c 0	14 (70%) CSP integer variables are encoded (238 clauses, 2478 bytes)
0.42/0.79	c 0	16 (80%) CSP integer variables are encoded (272 clauses, 2852 bytes)
0.42/0.79	c 0	18 (90%) CSP integer variables are encoded (306 clauses, 3226 bytes)
0.42/0.79	c 0	20 (100%) CSP integer variables are encoded (340 clauses, 3600 bytes)
0.42/0.81	c 0	76 (10%) CSP clauses are encoded (1423 clauses, 16980 bytes)
0.42/0.82	c 0	152 (20%) CSP clauses are encoded (2506 clauses, 30873 bytes)
0.42/0.82	c 0	228 (30%) CSP clauses are encoded (3589 clauses, 44847 bytes)
0.42/0.83	c 0	304 (40%) CSP clauses are encoded (4672 clauses, 58956 bytes)
0.42/0.83	c 0	380 (50%) CSP clauses are encoded (5755 clauses, 73362 bytes)
0.42/0.84	c 0	456 (60%) CSP clauses are encoded (6838 clauses, 88416 bytes)
0.42/0.84	c 0	532 (70%) CSP clauses are encoded (7921 clauses, 103578 bytes)
0.42/0.85	c 0	608 (80%) CSP clauses are encoded (9004 clauses, 118740 bytes)
0.42/0.86	c 0	684 (90%) CSP clauses are encoded (10087 clauses, 133902 bytes)
0.42/0.86	c 0	760 (100%) CSP clauses are encoded (11170 clauses, 149064 bytes)
0.42/0.86	c 0	760 CSP clauses encoded
0.42/0.86	c 0	Writing map file : HOME/temp.map
0.42/0.86	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.86	c 0	SAT : 740 SAT variables, 11170 SAT clauses, 149064 bytes
0.42/0.86	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.42/0.89	c 0	SOLVING HOME/temp.cnf
0.42/0.89	c 0	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
0.81/0.99	c 0	DECODING HOME/temp.out WITH HOME/temp.map
0.81/0.99	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'
0.90/1.08	c 1	Decoding HOME/temp.out
0.90/1.10	s UNSATISFIABLE
1.00/1.10	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.00/1.16	c 1	CPU 1.02 (0.06 0.01 0.79 0.16)
1.00/1.16	c 1	END Sun Jul 12 09:19:41 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-2086052-1247383179/watcher-2086052-1247383179 -o /tmp/evaluation-result-2086052-1247383179/solver-2086052-1247383179 -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-2086052-1247383179.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: 2.01 2.00 2.00 4/81 26993
/proc/meminfo: memFree=1861432/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=18576 CPUtime=0
/proc/26993/stat : 26993 (runsolver) R 26991 26993 26742 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 25381072 19021824 284 996147200 4194304 4302564 548682068304 18446744073709551615 226238197031 0 0 4096 24578 0 0 0 17 1 0 0
/proc/26993/statm: 4644 284 249 26 0 2626 0

[startup+0.080043 s]
/proc/loadavg: 2.01 2.00 2.00 4/81 26993
/proc/meminfo: memFree=1861432/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=16740 CPUtime=0.06
/proc/26993/stat : 26993 (sugar) R 26991 26993 26742 0 -1 4194304 1083 0 0 0 5 1 0 0 18 0 1 0 25381072 17141760 1051 996147200 4194304 4206940 548682068608 18446744073709551615 226256104152 0 0 4224 0 0 0 0 17 1 0 0
/proc/26993/statm: 4185 1051 380 3 0 764 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16740

[startup+0.102049 s]
/proc/loadavg: 2.01 2.00 2.00 4/81 26993
/proc/meminfo: memFree=1861432/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=16868 CPUtime=0.07
/proc/26993/stat : 26993 (sugar) S 26991 26993 26742 0 -1 4194304 1227 128 0 0 6 1 0 0 19 0 1 0 25381072 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 226247094370 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26993/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.302065 s]
/proc/loadavg: 2.01 2.00 2.00 4/81 26993
/proc/meminfo: memFree=1861432/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=16868 CPUtime=0.07
/proc/26993/stat : 26993 (sugar) S 26991 26993 26742 0 -1 4194304 1227 128 0 0 6 1 0 0 19 0 1 0 25381072 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 226247094370 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26993/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.702095 s]
/proc/loadavg: 2.01 2.00 2.00 4/81 26993
/proc/meminfo: memFree=1861432/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=16868 CPUtime=0.42
/proc/26993/stat : 26993 (sugar) S 26991 26993 26742 0 -1 4194304 1309 4589 0 1 6 1 31 4 15 0 1 0 25381072 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 226247094370 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26993/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.42
Current children cumulated vsize (KiB) 16868

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

[startup+1.10713 s]
/proc/loadavg: 2.01 2.00 2.00 3/84 27019
/proc/meminfo: memFree=1857568/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=16868 CPUtime=0.9
/proc/26993/stat : 26993 (sugar) S 26991 26993 26742 0 -1 4194304 1445 10424 0 2 6 1 69 14 15 0 1 0 25381072 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 226247094370 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26993/statm: 4217 1112 409 3 0 796 0
[pid=27018] ppid=26993 vsize=5356 CPUtime=0
/proc/27018/stat : 27018 (sh) S 26993 26993 26742 0 -1 4194304 278 0 0 0 0 0 0 0 18 0 1 0 25381171 5484544 233 996147200 4194304 4889804 548682068752 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/27018/statm: 1339 233 193 169 0 50 0
[pid=27019] ppid=27018 vsize=863848 CPUtime=0.1
/proc/27019/stat : 27019 (java) S 27018 26993 26742 0 -1 0 3355 0 1 0 9 1 0 0 19 0 9 0 25381171 884580352 2824 996147200 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27019/statm: 215962 2824 1680 9 0 210467 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 886072

Child status: 0
Real time (s): 1.16543
CPU time (s): 1.05184
CPU user time (s): 0.863868
CPU system time (s): 0.187971
CPU usage (%): 90.2531
Max. virtual memory (cumulated for all children) (KiB): 886072

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.863868
system time used= 0.187971
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15623
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= 1269
involuntary context switches= 1174

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node58 at 2009-07-12 09:19:39
IDJOB=2086052
IDBENCH=58554
IDSOLVER=738
FILE ID=node58/2086052-1247383179
PBS_JOBID= 9507314
Free space on /tmp= 66312 MiB

SOLVER NAME= Sugar v1.14.6+picosat
BENCH NAME= CPAI08/csp/pigeons/normalized-pigeons-20-ord.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-2086052-1247383179/watcher-2086052-1247383179 -o /tmp/evaluation-result-2086052-1247383179/solver-2086052-1247383179 -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-2086052-1247383179.xml

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

MD5SUM BENCH= 27be955bda8fd33c2641a345649a0635
RANDOM SEED=622796591

node58.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		: 3000.234
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		: 3000.234
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:       1861912 kB
Buffers:         11328 kB
Cached:          62724 kB
SwapCached:          0 kB
Active:         124216 kB
Inactive:        18728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1861912 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1892 kB
Writeback:           0 kB
Mapped:          89308 kB
Slab:            36208 kB
Committed_AS:   282604 kB
PageTables:       1884 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= 66312 MiB
End job on node58 at 2009-07-12 09:19:41