Trace number 2086900

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 1.02084 1.16766

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-8.xml
MD5SUMe02ab284be8165bbf8650c2ca610d92a
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 benchmark0.033994
Satisfiable
(Un)Satisfiability was proved
Number of variables32
Number of constraints520
Maximum constraint arity2
Maximum domain size32
Number of constraints which are defined in extension0
Number of constraints which are defined in intension520
Global constraints used (with number of constraints)

Solver Data 

0.02/0.07	c 0	Sugar v1-14-6 + HOME/minisat
0.02/0.07	c 0	BEGIN Sun Jul 12 09:43:36 2009
0.02/0.07	c 0	PID 25964
0.02/0.07	c 0	HOST node91.alineos.net
0.02/0.07	c 0	CONVERTING HOME/instance-2086900-1247384616.xml TO HOME/temp.csp
0.02/0.07	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.XML2CSP -v -v 'HOME/instance-2086900-1247384616.xml' 'HOME/temp.csp'
0.06/0.41	c 0	1 domains, 32 variables, 2 predicates, 0 relations, 520 constraints
0.06/0.44	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.44	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'
0.38/0.51	c 0	Parsing HOME/temp.csp
0.38/0.55	c 0	parsed 555 expressions
0.38/0.56	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.38/0.56	c 0	Converting to clausal form CSP
0.38/0.60	c 0	converted 56 (10%) expressions
0.38/0.62	c 0	converted 111 (20%) expressions
0.38/0.64	c 0	converted 167 (30%) expressions
0.38/0.65	c 0	converted 222 (40%) expressions
0.38/0.67	c 1	converted 278 (50%) expressions
0.38/0.74	c 1	converted 333 (60%) expressions
0.38/0.75	c 1	converted 389 (70%) expressions
0.38/0.76	c 1	converted 444 (80%) expressions
0.38/0.77	c 1	converted 500 (90%) expressions
0.38/0.77	c 1	converted 555 (100%) expressions
0.38/0.77	c 1	CSP : 32 integers, 0 booleans, 544 clauses, largest domain size 30
0.38/0.77	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.38/0.77	c 1	Propagation in CSP
0.38/0.78	c 1	132 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.38/0.78	c 1	CSP : 32 integers, 0 booleans, 544 clauses, largest domain size 26
0.38/0.78	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.38/0.79	c 1	Simplifing CSP by introducing new Boolean variables
0.38/0.80	c 1	CSP : 32 integers, 992 booleans, 1536 clauses, largest domain size 26
0.38/0.80	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.38/0.83	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.38/0.83	c 1	4 (10%) CSP integer variables are encoded (78 clauses, 749 bytes)
0.38/0.84	c 1	7 (20%) CSP integer variables are encoded (105 clauses, 1015 bytes)
0.38/0.84	c 1	10 (30%) CSP integer variables are encoded (153 clauses, 1543 bytes)
0.38/0.84	c 1	13 (40%) CSP integer variables are encoded (198 clauses, 2038 bytes)
0.38/0.84	c 1	16 (50%) CSP integer variables are encoded (216 clauses, 2236 bytes)
0.38/0.84	c 1	20 (60%) CSP integer variables are encoded (294 clauses, 3094 bytes)
0.38/0.84	c 1	23 (70%) CSP integer variables are encoded (321 clauses, 3391 bytes)
0.38/0.84	c 1	26 (80%) CSP integer variables are encoded (369 clauses, 3919 bytes)
0.38/0.84	c 1	29 (90%) CSP integer variables are encoded (414 clauses, 4414 bytes)
0.38/0.84	c 1	32 (100%) CSP integer variables are encoded (432 clauses, 4612 bytes)
0.38/0.86	c 1	154 (10%) CSP clauses are encoded (1929 clauses, 25394 bytes)
0.38/0.87	c 1	308 (20%) CSP clauses are encoded (2978 clauses, 39980 bytes)
0.38/0.87	c 1	461 (30%) CSP clauses are encoded (3597 clauses, 48500 bytes)
0.38/0.88	c 1	615 (40%) CSP clauses are encoded (3867 clauses, 51887 bytes)
0.38/0.89	c 1	768 (50%) CSP clauses are encoded (4812 clauses, 65962 bytes)
0.38/0.89	c 1	922 (60%) CSP clauses are encoded (6053 clauses, 85228 bytes)
0.38/0.90	c 1	1076 (70%) CSP clauses are encoded (6752 clauses, 96123 bytes)
0.38/0.90	c 1	1229 (80%) CSP clauses are encoded (7623 clauses, 109804 bytes)
0.38/0.91	c 1	1383 (90%) CSP clauses are encoded (8768 clauses, 127739 bytes)
0.38/0.91	c 1	1536 (100%) CSP clauses are encoded (9650 clauses, 141651 bytes)
0.38/0.91	c 1	1536 CSP clauses encoded
0.38/0.91	c 1	Writing map file : HOME/temp.map
0.38/0.91	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.38/0.91	c 1	SAT : 1456 SAT variables, 9650 SAT clauses, 141651 bytes
0.38/0.91	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.38/0.96	c 1	SOLVING HOME/temp.cnf
0.38/0.96	c 1	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.38/0.96	c 1	This is MiniSat 2.0 beta
0.38/0.96	c 1	WARNING: for repeatability, setting FPU to use double precision
0.38/0.96	c 1	============================[ Problem Statistics ]=============================
0.38/0.96	c 1	|                                                                             |
0.38/0.96	c 1	|  Number of variables:  1456                                                 |
0.38/0.96	c 1	|  Number of clauses:    9650                                                 |
0.38/0.97	c 1	|  Parsing time:         0.00         s                                       |
0.38/0.97	c 1	============================[ Search Statistics ]==============================
0.38/0.97	c 1	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.38/0.97	c 1	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.38/0.97	c 1	===============================================================================
0.38/0.97	c 1	|         0 |    1240     9434    25938 |     3144        0    nan |  0.000 % |
0.38/0.98	c 1	|       101 |    1240     9434    25938 |     3459      101      6 | 14.835 % |
0.89/1.01	c 1	===============================================================================
0.89/1.01	c 1	restarts              : 2
0.89/1.01	c 1	conflicts             : 228            (6707 /sec)
0.89/1.01	c 1	decisions             : 374            (1.07 % random) (11002 /sec)
0.89/1.01	c 1	propagations          : 78343          (2304613 /sec)
0.89/1.01	c 1	conflict literals     : 1151           (41.69 % deleted)
0.89/1.01	c 1	Memory used           : 2.18 MB
0.89/1.01	c 1	CPU time              : 0.033994 s
0.89/1.01	c 1	
0.89/1.01	c 1	UNSATISFIABLE
0.89/1.01	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.89/1.01	c 1	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'
0.89/1.08	c 1	Decoding HOME/temp.out
0.89/1.09	s UNSATISFIABLE
0.89/1.11	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.89/1.16	c 1	CPU 0.99 (0.05 0.01 0.84 0.09)
0.89/1.16	c 1	END Sun Jul 12 09:43:37 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-2086900-1247384616/watcher-2086900-1247384616 -o /tmp/evaluation-result-2086900-1247384616/solver-2086900-1247384616 -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-2086900-1247384616.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: 2.25 2.12 2.12 4/82 25964
/proc/meminfo: memFree=1899024/2055920 swapFree=4192812/4192956
[pid=25964] ppid=25962 vsize=12272 CPUtime=0
/proc/25964/stat : 25964 (sugar) R 25962 25964 25750 0 -1 4194304 359 0 0 0 0 0 0 0 18 0 1 0 25526201 12566528 327 996147200 4194304 4206940 548682068608 18446744073709551615 251619080960 0 0 4224 0 0 0 0 17 0 0 0
/proc/25964/statm: 3068 327 246 3 0 168 0

[startup+0.0381139 s]
/proc/loadavg: 2.25 2.12 2.12 4/82 25964
/proc/meminfo: memFree=1899024/2055920 swapFree=4192812/4192956
[pid=25964] ppid=25962 vsize=13468 CPUtime=0.02
/proc/25964/stat : 25964 (sugar) R 25962 25964 25750 0 -1 4194304 753 0 0 0 2 0 0 0 18 0 1 0 25526201 13791232 721 996147200 4194304 4206940 548682068608 18446744073709551615 251610050802 0 0 4224 0 0 0 0 17 0 0 0
/proc/25964/statm: 3367 721 338 3 0 467 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 13468

[startup+0.101123 s]
/proc/loadavg: 2.25 2.12 2.12 4/82 25964
/proc/meminfo: memFree=1899024/2055920 swapFree=4192812/4192956
[pid=25964] ppid=25962 vsize=16868 CPUtime=0.06
/proc/25964/stat : 25964 (sugar) S 25962 25964 25750 0 -1 4194304 1227 128 0 0 5 1 0 0 16 0 1 0 25526201 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 251610050658 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/25964/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301141 s]
/proc/loadavg: 2.25 2.12 2.12 4/82 25964
/proc/meminfo: memFree=1899024/2055920 swapFree=4192812/4192956
[pid=25964] ppid=25962 vsize=16868 CPUtime=0.06
/proc/25964/stat : 25964 (sugar) S 25962 25964 25750 0 -1 4194304 1227 128 0 0 5 1 0 0 16 0 1 0 25526201 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 251610050658 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/25964/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.701196 s]
/proc/loadavg: 2.25 2.12 2.12 4/82 25964
/proc/meminfo: memFree=1899024/2055920 swapFree=4192812/4192956
[pid=25964] ppid=25962 vsize=16868 CPUtime=0.38
/proc/25964/stat : 25964 (sugar) S 25962 25964 25750 0 -1 4194304 1309 4594 0 1 5 1 30 2 15 0 1 0 25526201 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 251610050658 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25964/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 16868

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

[startup+1.10623 s]
/proc/loadavg: 2.25 2.12 2.12 3/85 25988
/proc/meminfo: memFree=1894968/2055920 swapFree=4192812/4192956
[pid=25964] ppid=25962 vsize=16868 CPUtime=0.89
/proc/25964/stat : 25964 (sugar) S 25962 25964 25750 0 -1 4194304 1446 11782 0 2 5 1 76 7 16 0 1 0 25526201 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 251610050658 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/25964/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 1.16766
CPU time (s): 1.02084
CPU user time (s): 0.904862
CPU system time (s): 0.115982
CPU usage (%): 87.4266
Max. virtual memory (cumulated for all children) (KiB): 24452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.904862
system time used= 0.115982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16986
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= 1372
involuntary context switches= 1230

runsolver used 0.006998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node91 at 2009-07-12 09:43:36
IDJOB=2086900
IDBENCH=58657
IDSOLVER=739
FILE ID=node91/2086900-1247384616
PBS_JOBID= 9507307
Free space on /tmp= 66220 MiB

SOLVER NAME= Sugar v1.14.6+minisat
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-8.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-2086900-1247384616/watcher-2086900-1247384616 -o /tmp/evaluation-result-2086900-1247384616/solver-2086900-1247384616 -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-2086900-1247384616.xml

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

MD5SUM BENCH= e02ab284be8165bbf8650c2ca610d92a
RANDOM SEED=739121480

node91.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		: 3000.241
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		: 3000.241
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1899440 kB
Buffers:          8920 kB
Cached:          63704 kB
SwapCached:          0 kB
Active:          87668 kB
Inactive:        18836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1899440 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1356 kB
Writeback:           0 kB
Mapped:          54272 kB
Slab:            35068 kB
Committed_AS:   221836 kB
PageTables:       1816 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= 66220 MiB
End job on node91 at 2009-07-12 09:43:37