Trace number 2082027

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 1.76173 1.86769

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-1.xml
MD5SUMb533018f75b84b97c42ae06595d24f86
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 benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints145
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension145
Global constraints used (with number of constraints)

Solver Data 

0.00/0.07	c 0	Sugar v1-14-6 + HOME/minisat
0.00/0.08	c 0	BEGIN Sun Jul 12 06:55:23 2009
0.00/0.08	c 0	PID 23809
0.00/0.08	c 0	HOST node31.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2082027-1247374523.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-2082027-1247374523.xml' 'HOME/temp.csp'
0.06/0.31	c 0	1 domains, 20 variables, 2 predicates, 0 relations, 145 constraints
0.06/0.34	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.34	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'
0.28/0.43	c 1	Parsing HOME/temp.csp
0.28/0.45	c 1	parsed 168 expressions
0.28/0.46	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.28/0.46	c 1	Converting to clausal form CSP
0.28/0.48	c 1	converted 17 (10%) expressions
0.28/0.51	c 1	converted 34 (20%) expressions
0.28/0.54	c 1	converted 51 (30%) expressions
0.28/0.56	c 1	converted 68 (40%) expressions
0.28/0.59	c 1	converted 84 (50%) expressions
0.29/0.62	c 1	converted 101 (60%) expressions
0.29/0.67	c 1	converted 118 (70%) expressions
0.29/0.68	c 1	converted 135 (80%) expressions
0.29/0.69	c 1	converted 152 (90%) expressions
0.29/0.69	c 1	converted 168 (100%) expressions
0.29/0.69	c 1	CSP : 20 integers, 135 booleans, 550 clauses, largest domain size 10
0.29/0.69	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.29/0.70	c 1	Propagation in CSP
0.29/0.71	c 1	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.29/0.71	c 1	CSP : 20 integers, 135 booleans, 550 clauses, largest domain size 10
0.29/0.71	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.29/0.71	c 1	Simplifing CSP by introducing new Boolean variables
0.29/0.73	c 1	CSP : 20 integers, 689 booleans, 1104 clauses, largest domain size 10
0.29/0.73	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.29/0.75	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.29/0.86	c 1	2 (10%) CSP integer variables are encoded (16 clauses, 192 bytes)
0.29/0.86	c 1	4 (20%) CSP integer variables are encoded (32 clauses, 336 bytes)
0.29/0.86	c 1	6 (30%) CSP integer variables are encoded (48 clauses, 480 bytes)
0.29/0.86	c 1	8 (40%) CSP integer variables are encoded (64 clauses, 624 bytes)
0.29/0.86	c 1	10 (50%) CSP integer variables are encoded (80 clauses, 768 bytes)
0.29/0.86	c 1	12 (60%) CSP integer variables are encoded (96 clauses, 928 bytes)
0.29/0.86	c 1	14 (70%) CSP integer variables are encoded (112 clauses, 1104 bytes)
0.29/0.86	c 1	16 (80%) CSP integer variables are encoded (128 clauses, 1280 bytes)
0.29/0.86	c 1	18 (90%) CSP integer variables are encoded (144 clauses, 1456 bytes)
0.29/0.86	c 1	20 (100%) CSP integer variables are encoded (160 clauses, 1632 bytes)
0.29/0.88	c 1	111 (10%) CSP clauses are encoded (815 clauses, 9921 bytes)
0.29/0.89	c 1	221 (20%) CSP clauses are encoded (1369 clauses, 17326 bytes)
0.29/0.90	c 1	332 (30%) CSP clauses are encoded (1997 clauses, 25928 bytes)
0.29/0.91	c 1	442 (40%) CSP clauses are encoded (2623 clauses, 34400 bytes)
0.29/0.92	c 1	552 (50%) CSP clauses are encoded (3246 clauses, 43018 bytes)
0.29/0.93	c 1	663 (60%) CSP clauses are encoded (3904 clauses, 52194 bytes)
0.29/0.94	c 1	773 (70%) CSP clauses are encoded (4581 clauses, 61643 bytes)
0.29/0.94	c 1	884 (80%) CSP clauses are encoded (5274 clauses, 71462 bytes)
0.29/0.95	c 1	994 (90%) CSP clauses are encoded (5990 clauses, 82130 bytes)
0.29/0.96	c 1	1104 (100%) CSP clauses are encoded (6754 clauses, 93734 bytes)
0.29/0.96	c 1	1104 CSP clauses encoded
0.29/0.96	c 1	Writing map file : HOME/temp.map
0.29/0.97	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.29/0.97	c 1	SAT : 869 SAT variables, 6754 SAT clauses, 93734 bytes
0.29/0.97	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.90/1.02	c 1	SOLVING HOME/temp.cnf
0.90/1.02	c 1	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.90/1.03	c 1	This is MiniSat 2.0 beta
0.90/1.03	c 1	WARNING: for repeatability, setting FPU to use double precision
0.90/1.03	c 1	============================[ Problem Statistics ]=============================
0.90/1.03	c 1	|                                                                             |
0.90/1.03	c 1	|  Number of variables:  869                                                  |
0.90/1.03	c 1	|  Number of clauses:    6754                                                 |
0.90/1.03	c 1	|  Parsing time:         0.00         s                                       |
0.90/1.03	c 1	============================[ Search Statistics ]==============================
0.90/1.03	c 1	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.90/1.03	c 1	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.90/1.03	c 1	===============================================================================
0.90/1.03	c 1	|         0 |     866     6751    18834 |     2250        0    nan |  0.000 % |
0.90/1.04	c 1	|       100 |     866     6751    18834 |     2475      100     14 |  0.346 % |
0.90/1.05	c 1	|       250 |     866     6751    18834 |     2722      250     12 |  0.349 % |
0.90/1.06	c 1	|       475 |     866     6751    18834 |     2995      475     11 |  0.361 % |
0.90/1.09	c 1	|       812 |     866     6751    18834 |     3294      812     10 |  0.364 % |
0.92/1.13	c 1	|      1318 |     862     6692    18683 |     3624      706     11 |  0.807 % |
0.92/1.19	c 1	|      2079 |     862     6692    18683 |     3986     1467     12 |  0.808 % |
0.92/1.29	c 1	|      3218 |     862     6692    18683 |     4385     2606     13 |  0.807 % |
0.92/1.46	c 2	|      4926 |     860     6612    18468 |     4823     3330     12 |  1.041 % |
0.92/1.73	c 2	|      7489 |     715     4757    13475 |     5306      686      7 | 17.722 % |
0.92/1.74	c 2	===============================================================================
0.92/1.74	c 2	restarts              : 10
0.92/1.74	c 2	conflicts             : 7536           (10752 /sec)
0.92/1.74	c 2	decisions             : 8663           (1.48 % random) (12360 /sec)
0.92/1.74	c 2	propagations          : 1465217        (2090500 /sec)
0.92/1.74	c 2	conflict literals     : 87187          (30.77 % deleted)
0.92/1.74	c 2	Memory used           : 2.41 MB
0.92/1.74	c 2	CPU time              : 0.700893 s
0.92/1.74	c 2	
0.92/1.74	c 2	UNSATISFIABLE
0.92/1.74	c 2	DECODING HOME/temp.out WITH HOME/temp.map
0.92/1.74	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'
1.62/1.82	c 2	Decoding HOME/temp.out
1.62/1.83	s UNSATISFIABLE
1.62/1.84	c 2	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.62/1.86	c 2	CPU 1.73 (0.06 0.01 1.57 0.09)
1.62/1.86	c 2	END Sun Jul 12 06:55:25 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-2082027-1247374523/watcher-2082027-1247374523 -o /tmp/evaluation-result-2082027-1247374523/solver-2082027-1247374523 -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-2082027-1247374523.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: 1.99 2.00 2.00 4/74 23809
/proc/meminfo: memFree=1253792/2055920 swapFree=4192812/4192956
[pid=23809] ppid=23807 vsize=12268 CPUtime=0
/proc/23809/stat : 23809 (sugar) R 23807 23809 19700 0 -1 4194304 348 0 0 0 0 0 0 0 20 0 1 0 24518432 12562432 316 996147200 4194304 4206940 548682068608 18446744073709551615 225612364389 0 0 4224 0 0 0 0 17 1 0 0
/proc/23809/statm: 3067 316 241 3 0 167 0

[startup+0.0983671 s]
/proc/loadavg: 1.99 2.00 2.00 4/74 23809
/proc/meminfo: memFree=1253792/2055920 swapFree=4192812/4192956
[pid=23809] ppid=23807 vsize=16868 CPUtime=0.06
/proc/23809/stat : 23809 (sugar) S 23807 23809 19700 0 -1 4194304 1227 128 0 0 5 1 0 0 21 0 1 0 24518432 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 225621094498 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23809/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.106614 s]
/proc/loadavg: 1.99 2.00 2.00 4/74 23809
/proc/meminfo: memFree=1253792/2055920 swapFree=4192812/4192956
[pid=23809] ppid=23807 vsize=16868 CPUtime=0.06
/proc/23809/stat : 23809 (sugar) S 23807 23809 19700 0 -1 4194304 1227 128 0 0 5 1 0 0 21 0 1 0 24518432 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 225621094498 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23809/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301851 s]
/proc/loadavg: 1.99 2.00 2.00 4/74 23809
/proc/meminfo: memFree=1253792/2055920 swapFree=4192812/4192956
[pid=23809] ppid=23807 vsize=16868 CPUtime=0.06
/proc/23809/stat : 23809 (sugar) S 23807 23809 19700 0 -1 4194304 1227 128 0 0 5 1 0 0 21 0 1 0 24518432 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 225621094498 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23809/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.701884 s]
/proc/loadavg: 1.99 2.00 2.00 4/74 23809
/proc/meminfo: memFree=1253792/2055920 swapFree=4192812/4192956
[pid=23809] ppid=23807 vsize=16868 CPUtime=0.29
/proc/23809/stat : 23809 (sugar) S 23807 23809 19700 0 -1 4194304 1310 4215 0 1 6 1 20 2 15 0 1 0 24518432 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 225621094498 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23809/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16868

[startup+1.50428 s]
/proc/loadavg: 1.99 2.00 2.00 2/85 23831
/proc/meminfo: memFree=1238536/2055920 swapFree=4192812/4192956
[pid=23809] ppid=23807 vsize=16868 CPUtime=0.92
/proc/23809/stat : 23809 (sugar) S 23807 23809 19700 0 -1 4194304 1374 10789 0 2 6 1 79 6 15 0 1 0 24518432 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 225621094498 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23809/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.92
Current children cumulated vsize (KiB) 16868

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

[startup+1.70197 s]
/proc/loadavg: 1.99 2.00 2.00 2/85 23831
/proc/meminfo: memFree=1238536/2055920 swapFree=4192812/4192956
[pid=23809] ppid=23807 vsize=16868 CPUtime=0.92
/proc/23809/stat : 23809 (sugar) S 23807 23809 19700 0 -1 4194304 1374 10789 0 2 6 1 79 6 15 0 1 0 24518432 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 225621094498 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23809/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.92
Current children cumulated vsize (KiB) 16868

[startup+1.80198 s]
/proc/loadavg: 1.99 2.00 2.00 2/85 23831
/proc/meminfo: memFree=1238536/2055920 swapFree=4192812/4192956
[pid=23809] ppid=23807 vsize=16868 CPUtime=1.62
/proc/23809/stat : 23809 (sugar) S 23807 23809 19700 0 -1 4194304 1427 11397 0 2 6 1 149 6 16 0 1 0 24518432 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 225621094498 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23809/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 1.62
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 1.86769
CPU time (s): 1.76173
CPU user time (s): 1.64375
CPU system time (s): 0.117982
CPU usage (%): 94.3267
Max. virtual memory (cumulated for all children) (KiB): 890876

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.64375
system time used= 0.117982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16595
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= 644
involuntary context switches= 583

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node31 at 2009-07-12 06:55:23
IDJOB=2082027
IDBENCH=57523
IDSOLVER=739
FILE ID=node31/2082027-1247374523
PBS_JOBID= 9507080
Free space on /tmp= 66196 MiB

SOLVER NAME= Sugar v1.14.6+minisat
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-1.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-2082027-1247374523/watcher-2082027-1247374523 -o /tmp/evaluation-result-2082027-1247374523/solver-2082027-1247374523 -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-2082027-1247374523.xml

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

MD5SUM BENCH= b533018f75b84b97c42ae06595d24f86
RANDOM SEED=89962646

node31.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		: 3000.216
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	: 5931.00
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		: 3000.216
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:       1254272 kB
Buffers:         20844 kB
Cached:         360636 kB
SwapCached:          0 kB
Active:         663804 kB
Inactive:        73672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1254272 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1628 kB
Writeback:           0 kB
Mapped:         367100 kB
Slab:            48292 kB
Committed_AS:   513504 kB
PageTables:       2664 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66196 MiB
End job on node31 at 2009-07-12 06:55:25