Trace number 2082235

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+picosatSAT 1.58176 1.70875

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-20.xml
MD5SUMac93d30a66ab288a3e01eb7f585af8dc
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 benchmark0.034994
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints800
Maximum constraint arity2
Maximum domain size40
Number of constraints which are defined in extension0
Number of constraints which are defined in intension800
Global constraints used (with number of constraints)

Solver Data 

0.00/0.08	c 0	Sugar v1-14-6 + HOME/picosat
0.00/0.08	c 0	BEGIN Sun Jul 12 07:00:04 2009
0.00/0.08	c 0	PID 23170
0.00/0.08	c 0	HOST node12.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2082235-1247374803.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-2082235-1247374803.xml' 'HOME/temp.csp'
0.07/0.47	c 0	1 domains, 40 variables, 2 predicates, 0 relations, 800 constraints
0.07/0.51	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.07/0.51	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'
0.07/0.59	c 0	Parsing HOME/temp.csp
0.45/0.64	c 0	parsed 843 expressions
0.45/0.65	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.45/0.65	c 0	Converting to clausal form CSP
0.45/0.70	c 0	converted 85 (10%) expressions
0.45/0.73	c 0	converted 169 (20%) expressions
0.45/0.77	c 0	converted 253 (30%) expressions
0.45/0.78	c 0	converted 338 (40%) expressions
0.45/0.87	c 0	converted 422 (50%) expressions
0.45/0.87	c 0	converted 506 (60%) expressions
0.45/0.88	c 0	converted 591 (70%) expressions
0.45/0.89	c 0	converted 675 (80%) expressions
0.45/0.89	c 0	converted 759 (90%) expressions
0.45/0.91	c 0	converted 843 (100%) expressions
0.45/0.91	c 0	CSP : 40 integers, 0 booleans, 820 clauses, largest domain size 38
0.45/0.91	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.45/0.91	c 0	Propagation in CSP
0.45/0.92	c 0	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.45/0.92	c 0	CSP : 40 integers, 0 booleans, 820 clauses, largest domain size 38
0.45/0.92	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.45/0.92	c 0	Simplifing CSP by introducing new Boolean variables
0.45/0.95	c 0	CSP : 40 integers, 1560 booleans, 2380 clauses, largest domain size 38
0.45/0.95	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.45/0.98	c 0	Encoding CSP to SAT : HOME/temp.cnf
0.45/0.99	c 0	4 (10%) CSP integer variables are encoded (138 clauses, 1372 bytes)
0.45/0.99	c 0	8 (20%) CSP integer variables are encoded (260 clauses, 2714 bytes)
0.45/0.99	c 0	12 (30%) CSP integer variables are encoded (366 clauses, 3880 bytes)
0.45/0.99	c 0	16 (40%) CSP integer variables are encoded (456 clauses, 4870 bytes)
0.45/0.99	c 0	20 (50%) CSP integer variables are encoded (530 clauses, 5684 bytes)
0.45/1.00	c 0	24 (60%) CSP integer variables are encoded (668 clauses, 7202 bytes)
0.45/1.00	c 0	28 (70%) CSP integer variables are encoded (790 clauses, 8544 bytes)
0.45/1.00	c 0	32 (80%) CSP integer variables are encoded (896 clauses, 9710 bytes)
0.45/1.00	c 0	36 (90%) CSP integer variables are encoded (986 clauses, 10743 bytes)
0.45/1.00	c 0	40 (100%) CSP integer variables are encoded (1060 clauses, 11705 bytes)
0.45/1.03	c 0	238 (10%) CSP clauses are encoded (5488 clauses, 80366 bytes)
0.45/1.05	c 1	476 (20%) CSP clauses are encoded (9686 clauses, 148560 bytes)
0.45/1.06	c 1	714 (30%) CSP clauses are encoded (13550 clauses, 212512 bytes)
0.45/1.08	c 1	952 (40%) CSP clauses are encoded (17073 clauses, 270430 bytes)
0.45/1.09	c 1	1190 (50%) CSP clauses are encoded (20263 clauses, 323048 bytes)
1.00/1.10	c 1	1428 (60%) CSP clauses are encoded (22946 clauses, 366795 bytes)
1.00/1.11	c 1	1666 (70%) CSP clauses are encoded (24992 clauses, 399859 bytes)
1.00/1.12	c 1	1904 (80%) CSP clauses are encoded (27715 clauses, 444570 bytes)
1.00/1.13	c 1	2142 (90%) CSP clauses are encoded (31900 clauses, 515380 bytes)
1.00/1.15	c 1	2380 (100%) CSP clauses are encoded (35554 clauses, 578422 bytes)
1.00/1.15	c 1	2380 CSP clauses encoded
1.00/1.15	c 1	Writing map file : HOME/temp.map
1.00/1.15	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.00/1.15	c 1	SAT : 2660 SAT variables, 35554 SAT clauses, 578422 bytes
1.00/1.15	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.00/1.19	c 1	SOLVING HOME/temp.cnf
1.00/1.19	c 1	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
1.07/1.53	c 1	DECODING HOME/temp.out WITH HOME/temp.map
1.07/1.53	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'
1.40/1.61	c 1	Decoding HOME/temp.out
1.40/1.65	s SATISFIABLE
1.40/1.65	v 32 11 31 24 30 3 13 0 2 22 26 15 5 1 4 6 7 8 17 18 34 14 35 29 36 10 21 9 12 33 38 28 19 16 20 23 25 27 37 39
1.40/1.66	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.40/1.70	c 1	CPU 1.55 (0.06 0.01 1.19 0.29)
1.40/1.70	c 1	END Sun Jul 12 07:00:05 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-2082235-1247374803/watcher-2082235-1247374803 -o /tmp/evaluation-result-2082235-1247374803/solver-2082235-1247374803 -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-2082235-1247374803.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: 2.52 2.36 2.14 4/72 23170
/proc/meminfo: memFree=1892456/2055920 swapFree=4192812/4192956
[pid=23170] ppid=23168 vsize=12272 CPUtime=0
/proc/23170/stat : 23170 (sugar) R 23168 23170 17442 0 -1 4194304 359 0 0 0 0 0 0 0 23 0 1 0 24547370 12566528 327 996147200 4194304 4206940 548682068608 18446744073709551615 252449412412 0 0 4224 0 0 0 0 17 1 0 0
/proc/23170/statm: 3068 327 246 3 0 168 0

[startup+0.146027 s]
/proc/loadavg: 2.52 2.36 2.14 4/72 23170
/proc/meminfo: memFree=1892456/2055920 swapFree=4192812/4192956
[pid=23170] ppid=23168 vsize=16868 CPUtime=0.07
/proc/23170/stat : 23170 (sugar) S 23168 23170 17442 0 -1 4194304 1227 128 0 0 6 1 0 0 24 0 1 0 24547370 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 252438425698 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23170/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.201033 s]
/proc/loadavg: 2.52 2.36 2.14 4/72 23170
/proc/meminfo: memFree=1892456/2055920 swapFree=4192812/4192956
[pid=23170] ppid=23168 vsize=16868 CPUtime=0.07
/proc/23170/stat : 23170 (sugar) S 23168 23170 17442 0 -1 4194304 1227 128 0 0 6 1 0 0 24 0 1 0 24547370 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 252438425698 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23170/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.301042 s]
/proc/loadavg: 2.52 2.36 2.14 4/72 23170
/proc/meminfo: memFree=1892456/2055920 swapFree=4192812/4192956
[pid=23170] ppid=23168 vsize=16868 CPUtime=0.07
/proc/23170/stat : 23170 (sugar) S 23168 23170 17442 0 -1 4194304 1227 128 0 0 6 1 0 0 24 0 1 0 24547370 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 252438425698 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23170/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.70108 s]
/proc/loadavg: 2.52 2.36 2.14 4/72 23170
/proc/meminfo: memFree=1892456/2055920 swapFree=4192812/4192956
[pid=23170] ppid=23168 vsize=16868 CPUtime=0.45
/proc/23170/stat : 23170 (sugar) S 23168 23170 17442 0 -1 4194304 1309 4793 0 1 6 1 35 3 16 0 1 0 24547370 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 252438425698 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23170/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.45
Current children cumulated vsize (KiB) 16868

[startup+1.50115 s]
/proc/loadavg: 2.52 2.36 2.14 3/83 23192
/proc/meminfo: memFree=1876368/2055920 swapFree=4192812/4192956
[pid=23170] ppid=23168 vsize=16868 CPUtime=1.07
/proc/23170/stat : 23170 (sugar) S 23168 23170 17442 0 -1 4194304 1365 11525 0 2 6 1 92 8 16 0 1 0 24547370 17272832 1113 996147200 4194304 4206940 548682068608 18446744073709551615 252438425698 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23170/statm: 4217 1113 409 3 0 796 0
Current children cumulated CPU time (s) 1.07
Current children cumulated vsize (KiB) 16868

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

[startup+1.60117 s]
/proc/loadavg: 2.52 2.36 2.14 3/83 23192
/proc/meminfo: memFree=1876368/2055920 swapFree=4192812/4192956
[pid=23170] ppid=23168 vsize=16868 CPUtime=1.4
/proc/23170/stat : 23170 (sugar) S 23168 23170 17442 0 -1 4194304 1428 12237 0 2 6 1 107 26 16 0 1 0 24547370 17272832 1113 996147200 4194304 4206940 548682068608 18446744073709551615 252438425698 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23170/statm: 4217 1113 409 3 0 796 0
Current children cumulated CPU time (s) 1.4
Current children cumulated vsize (KiB) 16868

[startup+1.70118 s]
/proc/loadavg: 2.52 2.36 2.14 3/83 23192
/proc/meminfo: memFree=1876368/2055920 swapFree=4192812/4192956
[pid=23170] ppid=23168 vsize=16868 CPUtime=1.4
/proc/23170/stat : 23170 (sugar) S 23168 23170 17442 0 -1 4194304 1449 12237 0 2 6 1 107 26 15 0 1 0 24547370 17272832 1113 996147200 4194304 4206940 548682068608 18446744073709551615 252438425698 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/23170/statm: 4217 1113 409 3 0 796 0
Current children cumulated CPU time (s) 1.4
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 1.70875
CPU time (s): 1.58176
CPU user time (s): 1.26081
CPU system time (s): 0.320951
CPU usage (%): 92.5684
Max. virtual memory (cumulated for all children) (KiB): 890808

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.26081
system time used= 0.320951
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17519
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= 1751
involuntary context switches= 1669

runsolver used 0.003999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node12 at 2009-07-12 07:00:03
IDJOB=2082235
IDBENCH=57557
IDSOLVER=738
FILE ID=node12/2082235-1247374803
PBS_JOBID= 9506997
Free space on /tmp= 66216 MiB

SOLVER NAME= Sugar v1.14.6+picosat
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-20.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-2082235-1247374803/watcher-2082235-1247374803 -o /tmp/evaluation-result-2082235-1247374803/solver-2082235-1247374803 -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-2082235-1247374803.xml

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

MD5SUM BENCH= ac93d30a66ab288a3e01eb7f585af8dc
RANDOM SEED=1452597344

node12.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		: 3000.240
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		: 3000.240
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:       1892936 kB
Buffers:          2436 kB
Cached:          58828 kB
SwapCached:        140 kB
Active:          78660 kB
Inactive:        22152 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1892936 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1560 kB
Writeback:           0 kB
Mapped:          51040 kB
Slab:            47684 kB
Committed_AS:   186500 kB
PageTables:       1744 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= 66216 MiB
End job on node12 at 2009-07-12 07:00:05