Trace number 2087538

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+minisatSAT 1.04284 1.15217

General information on the benchmark

Namecsp/queens/
normalized-queens-20.xml
MD5SUMce8cfcb035a6b208d012c9283692aba6
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints190
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension190
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 10:12:31 2009
0.00/0.08	c 0	PID 28491
0.00/0.08	c 0	HOST node41.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2087538-1247386350.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-2087538-1247386350.xml' 'HOME/temp.csp'
0.07/0.34	c 0	1 domains, 20 variables, 1 predicates, 0 relations, 190 constraints
0.07/0.34	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.07/0.35	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'
0.31/0.42	c 0	Parsing HOME/temp.csp
0.31/0.46	c 0	parsed 212 expressions
0.31/0.47	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.31/0.47	c 0	Converting to clausal form CSP
0.31/0.49	c 0	converted 22 (10%) expressions
0.31/0.53	c 0	converted 43 (20%) expressions
0.31/0.56	c 0	converted 64 (30%) expressions
0.31/0.58	c 0	converted 85 (40%) expressions
0.31/0.66	c 0	converted 106 (50%) expressions
0.31/0.66	c 0	converted 128 (60%) expressions
0.31/0.67	c 0	converted 149 (70%) expressions
0.31/0.68	c 0	converted 170 (80%) expressions
0.31/0.68	c 0	converted 191 (90%) expressions
0.31/0.69	c 0	converted 212 (100%) expressions
0.31/0.69	c 0	CSP : 20 integers, 190 booleans, 760 clauses, largest domain size 20
0.31/0.69	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.31/0.69	c 0	Propagation in CSP
0.31/0.70	c 0	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.31/0.70	c 0	CSP : 20 integers, 190 booleans, 760 clauses, largest domain size 20
0.31/0.70	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.31/0.71	c 0	Simplifing CSP by introducing new Boolean variables
0.31/0.75	c 0	CSP : 20 integers, 948 booleans, 1518 clauses, largest domain size 20
0.31/0.75	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.31/0.77	c 0	Encoding CSP to SAT : HOME/temp.cnf
0.31/0.78	c 0	2 (10%) CSP integer variables are encoded (36 clauses, 371 bytes)
0.31/0.78	c 0	4 (20%) CSP integer variables are encoded (72 clauses, 695 bytes)
0.31/0.78	c 0	6 (30%) CSP integer variables are encoded (108 clauses, 1048 bytes)
0.31/0.78	c 0	8 (40%) CSP integer variables are encoded (144 clauses, 1444 bytes)
0.31/0.78	c 0	10 (50%) CSP integer variables are encoded (180 clauses, 1840 bytes)
0.31/0.78	c 0	12 (60%) CSP integer variables are encoded (216 clauses, 2236 bytes)
0.31/0.79	c 0	14 (70%) CSP integer variables are encoded (252 clauses, 2632 bytes)
0.31/0.79	c 0	16 (80%) CSP integer variables are encoded (288 clauses, 3028 bytes)
0.31/0.79	c 0	18 (90%) CSP integer variables are encoded (324 clauses, 3424 bytes)
0.31/0.79	c 0	20 (100%) CSP integer variables are encoded (360 clauses, 3820 bytes)
0.31/0.81	c 0	152 (10%) CSP clauses are encoded (1956 clauses, 25868 bytes)
0.31/0.82	c 0	304 (20%) CSP clauses are encoded (3586 clauses, 49143 bytes)
0.31/0.83	c 0	456 (30%) CSP clauses are encoded (5272 clauses, 73489 bytes)
0.31/0.84	c 0	608 (40%) CSP clauses are encoded (6986 clauses, 98454 bytes)
0.31/0.85	c 0	759 (50%) CSP clauses are encoded (8668 clauses, 123749 bytes)
0.31/0.85	c 0	911 (60%) CSP clauses are encoded (10410 clauses, 151163 bytes)
0.31/0.86	c 0	1063 (70%) CSP clauses are encoded (12248 clauses, 181091 bytes)
0.31/0.87	c 0	1215 (80%) CSP clauses are encoded (14150 clauses, 212075 bytes)
0.31/0.87	c 0	1367 (90%) CSP clauses are encoded (16132 clauses, 244379 bytes)
0.31/0.88	c 0	1518 (100%) CSP clauses are encoded (18218 clauses, 278398 bytes)
0.31/0.88	c 0	1518 CSP clauses encoded
0.31/0.88	c 0	Writing map file : HOME/temp.map
0.31/0.88	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.31/0.88	c 0	SAT : 1328 SAT variables, 18218 SAT clauses, 278398 bytes
0.31/0.88	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.31/0.93	c 0	SOLVING HOME/temp.cnf
0.31/0.93	c 0	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.31/0.94	c 0	This is MiniSat 2.0 beta
0.31/0.94	c 0	WARNING: for repeatability, setting FPU to use double precision
0.31/0.94	c 0	============================[ Problem Statistics ]=============================
0.31/0.94	c 0	|                                                                             |
0.31/0.94	c 0	|  Number of variables:  1328                                                 |
0.31/0.94	c 0	|  Number of clauses:    18218                                                |
0.31/0.95	c 0	|  Parsing time:         0.01         s                                       |
0.31/0.95	c 0	============================[ Search Statistics ]==============================
0.31/0.95	c 0	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.31/0.95	c 0	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.31/0.95	c 0	===============================================================================
0.31/0.95	c 0	|         0 |    1327    18217    52583 |     6072        0    nan |  0.000 % |
0.31/0.96	c 0	|       100 |    1326    18217    52583 |     6679       99     30 |  0.152 % |
0.31/0.97	c 0	|       251 |    1326    18217    52583 |     7347      250     21 |  0.151 % |
0.31/0.98	c 0	===============================================================================
0.31/0.98	c 0	restarts              : 3
0.31/0.98	c 0	conflicts             : 261            (6870 /sec)
0.31/0.98	c 0	decisions             : 450            (0.67 % random) (11844 /sec)
0.31/0.98	c 0	propagations          : 59536          (1566984 /sec)
0.31/0.98	c 0	conflict literals     : 5334           (10.20 % deleted)
0.31/0.98	c 0	Memory used           : 2.68 MB
0.31/0.98	c 0	CPU time              : 0.037994 s
0.31/0.98	c 0	
0.31/0.98	c 0	SATISFIABLE
0.31/0.98	c 0	DECODING HOME/temp.out WITH HOME/temp.map
0.31/0.98	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'
0.89/1.06	c 1	Decoding HOME/temp.out
0.89/1.09	s SATISFIABLE
0.89/1.10	v 16 5 9 6 15 18 8 13 2 4 7 1 3 12 19 11 14 17 10 20
1.00/1.10	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.00/1.15	c 1	CPU 1.01 (0.05 0.02 0.85 0.09)
1.00/1.15	c 1	END Sun Jul 12 10:12:32 2009

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2087538-1247386350/watcher-2087538-1247386350 -o /tmp/evaluation-result-2087538-1247386350/solver-2087538-1247386350 -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-2087538-1247386350.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: 1.94 1.98 1.99 4/81 28491
/proc/meminfo: memFree=1702144/2055920 swapFree=4192812/4192956
[pid=28491] ppid=28489 vsize=12268 CPUtime=0
/proc/28491/stat : 28491 (sugar) R 28489 28491 27000 0 -1 4194304 348 0 0 0 0 0 0 0 20 0 1 0 25326749 12562432 316 996147200 4194304 4206940 548682068608 18446744073709551615 209156333584 0 0 4224 0 0 0 0 17 1 0 0
/proc/28491/statm: 3067 316 241 3 0 167 0

[startup+0.0911909 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 28491
/proc/meminfo: memFree=1702144/2055920 swapFree=4192812/4192956
[pid=28491] ppid=28489 vsize=16868 CPUtime=0.07
/proc/28491/stat : 28491 (sugar) S 28489 28491 27000 0 -1 4194304 1227 128 0 0 5 2 0 0 19 0 1 0 25326749 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 209144819810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28491/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.102193 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 28491
/proc/meminfo: memFree=1702144/2055920 swapFree=4192812/4192956
[pid=28491] ppid=28489 vsize=16868 CPUtime=0.07
/proc/28491/stat : 28491 (sugar) S 28489 28491 27000 0 -1 4194304 1227 128 0 0 5 2 0 0 19 0 1 0 25326749 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 209144819810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28491/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.302209 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 28491
/proc/meminfo: memFree=1702144/2055920 swapFree=4192812/4192956
[pid=28491] ppid=28489 vsize=16868 CPUtime=0.07
/proc/28491/stat : 28491 (sugar) S 28489 28491 27000 0 -1 4194304 1227 128 0 0 5 2 0 0 19 0 1 0 25326749 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 209144819810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28491/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.701242 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 28491
/proc/meminfo: memFree=1702144/2055920 swapFree=4192812/4192956
[pid=28491] ppid=28489 vsize=16868 CPUtime=0.31
/proc/28491/stat : 28491 (sugar) S 28489 28491 27000 0 -1 4194304 1310 4366 0 1 5 2 22 2 15 0 1 0 25326749 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 209144819810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28491/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.31
Current children cumulated vsize (KiB) 16868

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

[startup+1.10628 s]
/proc/loadavg: 1.94 1.98 1.99 3/85 28518
/proc/meminfo: memFree=1697056/2055920 swapFree=4192812/4192956
[pid=28491] ppid=28489 vsize=16868 CPUtime=0.89
/proc/28491/stat : 28491 (sugar) S 28489 28491 27000 0 -1 4194304 1447 11682 0 2 5 2 75 7 15 0 1 0 25326749 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 209144819810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28491/statm: 4217 1112 409 3 0 796 0
[pid=28516] ppid=28491 vsize=5356 CPUtime=0
/proc/28516/stat : 28516 (sh) S 28491 28491 27000 0 -1 4194304 278 0 0 0 0 0 0 0 18 0 1 0 25326847 5484544 233 996147200 4194304 4889804 548682068752 18446744073709551615 209135919940 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/28516/statm: 1339 233 193 169 0 50 0
[pid=28517] ppid=28516 vsize=864128 CPUtime=0.11
/proc/28517/stat : 28517 (java) S 28516 28491 27000 0 -1 0 3402 0 1 0 9 2 0 0 18 0 9 0 25326848 884867072 2871 996147200 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28517/statm: 216032 2871 1678 9 0 210544 0
[pid=28517/tid=28518] ppid=28516 vsize=864128 CPUtime=0.08
/proc/28517/task/28518/stat : 28518 (java) R 28516 28491 27000 0 -1 64 2423 0 1 0 7 1 0 0 20 0 9 0 25326849 884867072 2871 996147200 134512640 134550932 4294955984 18446744073709551615 4125950889 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 886352

Child status: 0
Real time (s): 1.15217
CPU time (s): 1.04284
CPU user time (s): 0.91586
CPU system time (s): 0.12698
CPU usage (%): 90.511
Max. virtual memory (cumulated for all children) (KiB): 886352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.91586
system time used= 0.12698
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16951
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= 1157
involuntary context switches= 1087

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node41 at 2009-07-12 10:12:30
IDJOB=2087538
IDBENCH=58737
IDSOLVER=739
FILE ID=node41/2087538-1247386350
PBS_JOBID= 9507177
Free space on /tmp= 65860 MiB

SOLVER NAME= Sugar v1.14.6+minisat
BENCH NAME= CPAI08/csp/queens/normalized-queens-20.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-2087538-1247386350/watcher-2087538-1247386350 -o /tmp/evaluation-result-2087538-1247386350/solver-2087538-1247386350 -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-2087538-1247386350.xml

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

MD5SUM BENCH= ce8cfcb035a6b208d012c9283692aba6
RANDOM SEED=455268925

node41.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		: 3000.212
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		: 3000.212
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:       1702624 kB
Buffers:         13248 kB
Cached:         112620 kB
SwapCached:          0 kB
Active:         265392 kB
Inactive:        36260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1702624 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1760 kB
Writeback:           0 kB
Mapped:         196140 kB
Slab:            36584 kB
Committed_AS:   417980 kB
PageTables:       2092 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= 65856 MiB
End job on node41 at 2009-07-12 10:12:32