Trace number 2082258

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 0.91486 1.02907

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-12.xml
MD5SUMd6c891b9ac0cbf4d59d1582e9ae13767
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 benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints288
Maximum constraint arity2
Maximum domain size24
Number of constraints which are defined in extension0
Number of constraints which are defined in intension288
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 07:00:14 2009
0.00/0.08	c 0	PID 24851
0.00/0.08	c 0	HOST node29.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2082258-1247374814.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-2082258-1247374814.xml' 'HOME/temp.csp'
0.06/0.38	c 1	1 domains, 24 variables, 2 predicates, 0 relations, 288 constraints
0.06/0.40	c 1	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.40	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'
0.06/0.48	c 1	Parsing HOME/temp.csp
0.35/0.52	c 1	parsed 315 expressions
0.35/0.53	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.35/0.53	c 1	Converting to clausal form CSP
0.35/0.56	c 1	converted 32 (10%) expressions
0.35/0.58	c 1	converted 63 (20%) expressions
0.35/0.59	c 1	converted 95 (30%) expressions
0.35/0.60	c 1	converted 126 (40%) expressions
0.35/0.62	c 1	converted 158 (50%) expressions
0.35/0.63	c 1	converted 189 (60%) expressions
0.35/0.64	c 1	converted 221 (70%) expressions
0.35/0.65	c 1	converted 252 (80%) expressions
0.35/0.66	c 1	converted 284 (90%) expressions
0.35/0.67	c 1	converted 315 (100%) expressions
0.35/0.67	c 1	CSP : 24 integers, 0 booleans, 300 clauses, largest domain size 22
0.35/0.67	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.35/0.67	c 1	Propagation in CSP
0.35/0.67	c 1	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.35/0.67	c 1	CSP : 24 integers, 0 booleans, 300 clauses, largest domain size 22
0.35/0.67	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.35/0.68	c 1	Simplifing CSP by introducing new Boolean variables
0.35/0.69	c 1	CSP : 24 integers, 552 booleans, 852 clauses, largest domain size 22
0.35/0.69	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.36/0.72	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.36/0.73	c 1	3 (10%) CSP integer variables are encoded (57 clauses, 560 bytes)
0.36/0.73	c 1	5 (20%) CSP integer variables are encoded (90 clauses, 857 bytes)
0.36/0.73	c 1	8 (30%) CSP integer variables are encoded (132 clauses, 1312 bytes)
0.36/0.73	c 1	10 (40%) CSP integer variables are encoded (155 clauses, 1565 bytes)
0.36/0.73	c 1	12 (50%) CSP integer variables are encoded (174 clauses, 1774 bytes)
0.36/0.73	c 1	15 (60%) CSP integer variables are encoded (231 clauses, 2401 bytes)
0.36/0.73	c 1	17 (70%) CSP integer variables are encoded (264 clauses, 2764 bytes)
0.36/0.73	c 1	20 (80%) CSP integer variables are encoded (306 clauses, 3226 bytes)
0.36/0.73	c 1	22 (90%) CSP integer variables are encoded (329 clauses, 3479 bytes)
0.36/0.73	c 1	24 (100%) CSP integer variables are encoded (348 clauses, 3688 bytes)
0.36/0.75	c 1	86 (10%) CSP clauses are encoded (1298 clauses, 16748 bytes)
0.36/0.76	c 1	171 (20%) CSP clauses are encoded (2159 clauses, 28970 bytes)
0.36/0.76	c 1	256 (30%) CSP clauses are encoded (2956 clauses, 40130 bytes)
0.36/0.77	c 1	341 (40%) CSP clauses are encoded (3659 clauses, 50186 bytes)
0.36/0.77	c 1	426 (50%) CSP clauses are encoded (4302 clauses, 59723 bytes)
0.36/0.78	c 1	512 (60%) CSP clauses are encoded (4849 clauses, 67887 bytes)
0.36/0.78	c 1	597 (70%) CSP clauses are encoded (5257 clauses, 73748 bytes)
0.36/0.79	c 1	682 (80%) CSP clauses are encoded (5755 clauses, 81051 bytes)
0.36/0.79	c 1	767 (90%) CSP clauses are encoded (6629 clauses, 94466 bytes)
0.36/0.79	c 1	852 (100%) CSP clauses are encoded (7386 clauses, 106012 bytes)
0.36/0.80	c 1	852 CSP clauses encoded
0.36/0.80	c 1	Writing map file : HOME/temp.map
0.36/0.80	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.36/0.80	c 1	SAT : 924 SAT variables, 7386 SAT clauses, 106012 bytes
0.36/0.80	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.36/0.83	c 1	SOLVING HOME/temp.cnf
0.36/0.83	c 1	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.36/0.83	c 1	This is MiniSat 2.0 beta
0.36/0.83	c 1	WARNING: for repeatability, setting FPU to use double precision
0.36/0.83	c 1	============================[ Problem Statistics ]=============================
0.36/0.83	c 1	|                                                                             |
0.36/0.83	c 1	|  Number of variables:  924                                                  |
0.36/0.83	c 1	|  Number of clauses:    7386                                                 |
0.36/0.84	c 1	|  Parsing time:         0.00         s                                       |
0.36/0.84	c 1	============================[ Search Statistics ]==============================
0.36/0.84	c 1	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.36/0.84	c 1	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.36/0.84	c 1	===============================================================================
0.36/0.84	c 1	|         0 |     904     7366    20448 |     2455        0    nan |  0.000 % |
0.36/0.85	c 1	|       102 |     904     7366    20448 |     2700      102     11 |  2.165 % |
0.36/0.86	c 1	===============================================================================
0.36/0.86	c 1	restarts              : 2
0.36/0.86	c 1	conflicts             : 165            (7859 /sec)
0.36/0.86	c 1	decisions             : 314            (0.00 % random) (14955 /sec)
0.36/0.86	c 1	propagations          : 34336          (1635359 /sec)
0.36/0.86	c 1	conflict literals     : 1923           (32.97 % deleted)
0.36/0.86	c 1	Memory used           : 2.16 MB
0.36/0.86	c 1	CPU time              : 0.020996 s
0.36/0.86	c 1	
0.36/0.86	c 1	SATISFIABLE
0.36/0.86	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.36/0.86	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'
0.78/0.94	c 1	Decoding HOME/temp.out
0.78/0.97	s SATISFIABLE
0.78/0.97	v 2 0 1 13 14 12 8 6 7 11 9 10 4 3 5 18 20 19 16 15 17 22 21 23
0.78/0.98	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.78/1.02	c 1	CPU 0.9 (0.06 0.02 0.72 0.1)
0.78/1.02	c 1	END Sun Jul 12 07:00:15 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-2082258-1247374814/watcher-2082258-1247374814 -o /tmp/evaluation-result-2082258-1247374814/solver-2082258-1247374814 -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-2082258-1247374814.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 2.03 2.00 4/81 24851
/proc/meminfo: memFree=1761224/2055920 swapFree=4191900/4192956
[pid=24851] ppid=24849 vsize=18576 CPUtime=0
/proc/24851/stat : 24851 (runsolver) R 24849 24851 19045 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 24547587 19021824 284 996147200 4194304 4302564 548682068304 18446744073709551615 221780700455 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24851/statm: 4644 284 249 26 0 2626 0

[startup+0.120071 s]
/proc/loadavg: 2.01 2.03 2.00 4/81 24851
/proc/meminfo: memFree=1761224/2055920 swapFree=4191900/4192956
[pid=24851] ppid=24849 vsize=16868 CPUtime=0.06
/proc/24851/stat : 24851 (sugar) S 24849 24851 19045 0 -1 4194304 1227 128 0 0 5 1 0 0 21 0 1 0 24547587 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 221789597794 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24851/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.201081 s]
/proc/loadavg: 2.01 2.03 2.00 4/81 24851
/proc/meminfo: memFree=1761224/2055920 swapFree=4191900/4192956
[pid=24851] ppid=24849 vsize=16868 CPUtime=0.06
/proc/24851/stat : 24851 (sugar) S 24849 24851 19045 0 -1 4194304 1227 128 0 0 5 1 0 0 21 0 1 0 24547587 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 221789597794 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24851/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301083 s]
/proc/loadavg: 2.01 2.03 2.00 4/81 24851
/proc/meminfo: memFree=1761224/2055920 swapFree=4191900/4192956
[pid=24851] ppid=24849 vsize=16868 CPUtime=0.06
/proc/24851/stat : 24851 (sugar) S 24849 24851 19045 0 -1 4194304 1227 128 0 0 5 1 0 0 21 0 1 0 24547587 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 221789597794 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24851/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.701114 s]
/proc/loadavg: 2.01 2.03 2.00 4/81 24851
/proc/meminfo: memFree=1761224/2055920 swapFree=4191900/4192956
[pid=24851] ppid=24849 vsize=16868 CPUtime=0.36
/proc/24851/stat : 24851 (sugar) S 24849 24851 19045 0 -1 4194304 1310 4558 0 1 6 1 26 3 15 0 1 0 24547587 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 221789597794 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24851/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.36
Current children cumulated vsize (KiB) 16868

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

[startup+0.801113 s]
/proc/loadavg: 2.01 2.03 2.00 4/81 24851
/proc/meminfo: memFree=1761224/2055920 swapFree=4191900/4192956
[pid=24851] ppid=24849 vsize=16868 CPUtime=0.36
/proc/24851/stat : 24851 (sugar) S 24849 24851 19045 0 -1 4194304 1310 4558 0 1 6 1 26 3 15 0 1 0 24547587 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 221789597794 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24851/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.36
Current children cumulated vsize (KiB) 16868

[startup+1.00112 s]
/proc/loadavg: 2.01 2.03 2.00 4/81 24851
/proc/meminfo: memFree=1761224/2055920 swapFree=4191900/4192956
[pid=24851] ppid=24849 vsize=16868 CPUtime=0.78
/proc/24851/stat : 24851 (sugar) S 24849 24851 19045 0 -1 4194304 1447 10465 0 2 6 2 63 7 16 0 1 0 24547587 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 221789597794 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24851/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 1.02907
CPU time (s): 0.91486
CPU user time (s): 0.78588
CPU system time (s): 0.12898
CPU usage (%): 88.9014
Max. virtual memory (cumulated for all children) (KiB): 16868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.78588
system time used= 0.12898
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15735
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= 1219
involuntary context switches= 1139

runsolver used 0.004999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node29 at 2009-07-12 07:00:14
IDJOB=2082258
IDBENCH=57561
IDSOLVER=739
FILE ID=node29/2082258-1247374814
PBS_JOBID= 9507084
Free space on /tmp= 66376 MiB

SOLVER NAME= Sugar v1.14.6+minisat
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-12.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-2082258-1247374814/watcher-2082258-1247374814 -o /tmp/evaluation-result-2082258-1247374814/solver-2082258-1247374814 -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-2082258-1247374814.xml

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

MD5SUM BENCH= d6c891b9ac0cbf4d59d1582e9ae13767
RANDOM SEED=1834208464

node29.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		: 3000.225
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		: 3000.225
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:       1761704 kB
Buffers:          6176 kB
Cached:          68092 kB
SwapCached:        260 kB
Active:         221696 kB
Inactive:        20972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1761704 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            1764 kB
Writeback:           0 kB
Mapped:         188272 kB
Slab:            36264 kB
Committed_AS:   416792 kB
PageTables:       2264 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= 66376 MiB
End job on node29 at 2009-07-12 07:00:15