Trace number 2086954

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+picosatUNSAT 3.52846 3.6701

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-11.xml
MD5SUM7a45128bc53de7416b9c9029d3cffa95
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 benchmark0.217966
Satisfiable
(Un)Satisfiability was proved
Number of variables44
Number of constraints979
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension979
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 09:46:31 2009
0.00/0.08	c 0	PID 25078
0.00/0.08	c 0	HOST node45.alineos.net
0.00/0.08	c 0	CONVERTING HOME/instance-2086954-1247384790.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-2086954-1247384790.xml' 'HOME/temp.csp'
0.07/0.47	c 0	1 domains, 44 variables, 2 predicates, 0 relations, 979 constraints
0.07/0.50	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.07/0.50	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'
0.07/0.58	c 0	Parsing HOME/temp.csp
0.45/0.64	c 0	parsed 1026 expressions
0.45/0.64	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.45/0.64	c 0	Converting to clausal form CSP
0.45/0.70	c 0	converted 103 (10%) expressions
0.45/0.73	c 0	converted 206 (20%) expressions
0.45/0.77	c 0	converted 308 (30%) expressions
0.45/0.84	c 0	converted 411 (40%) expressions
0.45/0.86	c 0	converted 513 (50%) expressions
0.45/0.87	c 0	converted 616 (60%) expressions
0.45/0.88	c 0	converted 719 (70%) expressions
0.45/0.89	c 0	converted 821 (80%) expressions
0.45/0.90	c 0	converted 924 (90%) expressions
0.45/0.90	c 0	converted 1026 (100%) expressions
0.45/0.90	c 0	CSP : 44 integers, 0 booleans, 1012 clauses, largest domain size 42
0.45/0.90	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.45/0.90	c 0	Propagation in CSP
0.45/0.92	c 0	231 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.45/0.92	c 0	CSP : 44 integers, 0 booleans, 1012 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 : 44 integers, 1892 booleans, 2904 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 1	Encoding CSP to SAT : HOME/temp.cnf
0.45/0.99	c 1	5 (10%) CSP integer variables are encoded (150 clauses, 1504 bytes)
0.45/0.99	c 1	9 (20%) CSP integer variables are encoded (216 clauses, 2230 bytes)
0.45/0.99	c 1	14 (30%) CSP integer variables are encoded (330 clauses, 3484 bytes)
0.45/0.99	c 1	18 (40%) CSP integer variables are encoded (420 clauses, 4474 bytes)
0.45/0.99	c 1	22 (50%) CSP integer variables are encoded (462 clauses, 4936 bytes)
0.45/0.99	c 1	27 (60%) CSP integer variables are encoded (612 clauses, 6586 bytes)
0.45/0.99	c 1	31 (70%) CSP integer variables are encoded (678 clauses, 7312 bytes)
0.45/0.99	c 1	36 (80%) CSP integer variables are encoded (792 clauses, 8566 bytes)
0.45/0.99	c 1	40 (90%) CSP integer variables are encoded (882 clauses, 9556 bytes)
0.45/1.00	c 1	44 (100%) CSP integer variables are encoded (924 clauses, 10018 bytes)
0.92/1.03	c 1	291 (10%) CSP clauses are encoded (5032 clauses, 72348 bytes)
0.92/1.04	c 1	581 (20%) CSP clauses are encoded (8254 clauses, 123884 bytes)
0.92/1.06	c 1	872 (30%) CSP clauses are encoded (10195 clauses, 154992 bytes)
0.92/1.07	c 1	1162 (40%) CSP clauses are encoded (11126 clauses, 169014 bytes)
0.92/1.07	c 1	1452 (50%) CSP clauses are encoded (13934 clauses, 214483 bytes)
0.92/1.08	c 1	1743 (60%) CSP clauses are encoded (17266 clauses, 268757 bytes)
0.92/1.09	c 1	2033 (70%) CSP clauses are encoded (19504 clauses, 304640 bytes)
1.02/1.11	c 1	2324 (80%) CSP clauses are encoded (22064 clauses, 345767 bytes)
1.02/1.11	c 1	2614 (90%) CSP clauses are encoded (25279 clauses, 397607 bytes)
1.02/1.12	c 1	2904 (100%) CSP clauses are encoded (27913 clauses, 440238 bytes)
1.02/1.12	c 1	2904 CSP clauses encoded
1.02/1.12	c 1	Writing map file : HOME/temp.map
1.02/1.12	c 1	Heap : 2 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.02/1.12	c 1	SAT : 2860 SAT variables, 27913 SAT clauses, 440238 bytes
1.02/1.12	c 1	Heap : 2 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.02/1.14	c 1	SOLVING HOME/temp.cnf
1.02/1.14	c 1	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
3.38/3.50	c 3	DECODING HOME/temp.out WITH HOME/temp.map
3.38/3.50	c 3	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'
3.38/3.58	c 3	Decoding HOME/temp.out
3.40/3.60	s UNSATISFIABLE
3.40/3.61	c 3	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
3.40/3.67	c 3	CPU 3.51 (0.06 0.01 3.19 0.25)
3.40/3.67	c 3	END Sun Jul 12 09:46:34 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-2086954-1247384790/watcher-2086954-1247384790 -o /tmp/evaluation-result-2086954-1247384790/solver-2086954-1247384790 -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-2086954-1247384790.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: 2.08 2.00 2.00 4/74 25078
/proc/meminfo: memFree=1902888/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=18576 CPUtime=0
/proc/25078/stat : 25078 (runsolver) R 25076 25078 23362 0 -1 4194368 15 0 0 0 0 0 0 0 24 0 1 0 25542833 19021824 284 996147200 4194304 4302564 548682068304 18446744073709551615 258939088167 0 0 4096 24578 0 0 0 17 1 0 0
/proc/25078/statm: 4644 284 249 26 0 2626 0

[startup+0.084207 s]
/proc/loadavg: 2.08 2.00 2.00 4/74 25078
/proc/meminfo: memFree=1902888/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=16868 CPUtime=0.07
/proc/25078/stat : 25078 (sugar) S 25076 25078 23362 0 -1 4194304 1209 128 0 0 6 1 0 0 18 0 1 0 25542833 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 258947985506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25078/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.107141 s]
/proc/loadavg: 2.08 2.00 2.00 4/74 25078
/proc/meminfo: memFree=1902888/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=16868 CPUtime=0.07
/proc/25078/stat : 25078 (sugar) S 25076 25078 23362 0 -1 4194304 1227 128 0 0 6 1 0 0 19 0 1 0 25542833 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 258947985506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25078/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.301451 s]
/proc/loadavg: 2.08 2.00 2.00 4/74 25078
/proc/meminfo: memFree=1902888/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=16868 CPUtime=0.07
/proc/25078/stat : 25078 (sugar) S 25076 25078 23362 0 -1 4194304 1227 128 0 0 6 1 0 0 19 0 1 0 25542833 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 258947985506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25078/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 16868

[startup+0.701524 s]
/proc/loadavg: 2.08 2.00 2.00 4/74 25078
/proc/meminfo: memFree=1902888/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=16868 CPUtime=0.45
/proc/25078/stat : 25078 (sugar) S 25076 25078 23362 0 -1 4194304 1309 4833 0 1 6 1 35 3 15 0 1 0 25542833 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 258947985506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25078/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.45
Current children cumulated vsize (KiB) 16868

[startup+1.50166 s]
/proc/loadavg: 2.08 2.00 2.00 3/85 25100
/proc/meminfo: memFree=1887120/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=16868 CPUtime=1.05
/proc/25078/stat : 25078 (sugar) S 25076 25078 23362 0 -1 4194304 1365 11602 0 2 6 1 90 8 16 0 1 0 25542833 17272832 1113 996147200 4194304 4206940 548682068608 18446744073709551615 258947985506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25078/statm: 4217 1113 409 3 0 796 0
Current children cumulated CPU time (s) 1.05
Current children cumulated vsize (KiB) 16868

[startup+3.10195 s]
/proc/loadavg: 2.08 2.00 2.00 3/77 25102
/proc/meminfo: memFree=1897744/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=16868 CPUtime=1.05
/proc/25078/stat : 25078 (sugar) S 25076 25078 23362 0 -1 4194304 1365 11602 0 2 6 1 90 8 16 0 1 0 25542833 17272832 1113 996147200 4194304 4206940 548682068608 18446744073709551615 258947985506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25078/statm: 4217 1113 409 3 0 796 0
[pid=25101] ppid=25078 vsize=5356 CPUtime=0
/proc/25101/stat : 25101 (sh) S 25078 25078 23362 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 25542947 5484544 232 996147200 4194304 4889804 548682068832 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/25101/statm: 1339 232 193 169 0 50 0
[pid=25102] ppid=25101 vsize=1924 CPUtime=1.93
/proc/25102/stat : 25102 (picosat) R 25101 25078 23362 0 -1 4194304 401 0 0 0 180 13 0 0 25 0 1 0 25542947 1970176 387 996147200 134512640 134931368 4294956256 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/25102/statm: 481 387 42 102 0 376 0
Current children cumulated CPU time (s) 2.98
Current children cumulated vsize (KiB) 24148

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

[startup+3.50203 s]
/proc/loadavg: 2.08 2.00 2.00 3/77 25102
/proc/meminfo: memFree=1897616/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=16868 CPUtime=1.05
/proc/25078/stat : 25078 (sugar) S 25076 25078 23362 0 -1 4194304 1365 11602 0 2 6 1 90 8 16 0 1 0 25542833 17272832 1113 996147200 4194304 4206940 548682068608 18446744073709551615 258947985506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25078/statm: 4217 1113 409 3 0 796 0
[pid=25101] ppid=25078 vsize=5356 CPUtime=0
/proc/25101/stat : 25101 (sh) S 25078 25078 23362 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 25542947 5484544 232 996147200 4194304 4889804 548682068832 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/25101/statm: 1339 232 193 169 0 50 0
[pid=25102] ppid=25101 vsize=1924 CPUtime=2.33
/proc/25102/stat : 25102 (picosat) R 25101 25078 23362 0 -1 4194304 406 0 0 0 220 13 0 0 25 0 1 0 25542947 1970176 392 996147200 134512640 134931368 4294956256 18446744073709551615 134530822 0 0 4096 0 0 0 0 17 1 0 0
/proc/25102/statm: 481 392 42 102 0 376 0
Current children cumulated CPU time (s) 3.38
Current children cumulated vsize (KiB) 24148

[startup+3.60105 s]
/proc/loadavg: 2.08 2.00 2.00 3/77 25102
/proc/meminfo: memFree=1897616/2055920 swapFree=4192812/4192956
[pid=25078] ppid=25076 vsize=16868 CPUtime=3.4
/proc/25078/stat : 25078 (sugar) S 25076 25078 23362 0 -1 4194304 1446 12307 0 2 6 1 311 22 16 0 1 0 25542833 17272832 1113 996147200 4194304 4206940 548682068608 18446744073709551615 258947985506 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25078/statm: 4217 1113 409 3 0 796 0
Current children cumulated CPU time (s) 3.4
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 3.6701
CPU time (s): 3.52846
CPU user time (s): 3.2575
CPU system time (s): 0.270958
CPU usage (%): 96.1408
Max. virtual memory (cumulated for all children) (KiB): 890812

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.2575
system time used= 0.270958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17515
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= 1733
involuntary context switches= 1675

runsolver used 0.007998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node45 at 2009-07-12 09:46:31
IDJOB=2086954
IDBENCH=58665
IDSOLVER=738
FILE ID=node45/2086954-1247384790
PBS_JOBID= 9507209
Free space on /tmp= 66460 MiB

SOLVER NAME= Sugar v1.14.6+picosat
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-11.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-2086954-1247384790/watcher-2086954-1247384790 -o /tmp/evaluation-result-2086954-1247384790/solver-2086954-1247384790 -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-2086954-1247384790.xml

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

MD5SUM BENCH= 7a45128bc53de7416b9c9029d3cffa95
RANDOM SEED=1830290631

node45.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		: 3000.281
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		: 3000.281
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:       1903368 kB
Buffers:         13520 kB
Cached:          64476 kB
SwapCached:          0 kB
Active:          79220 kB
Inactive:        23452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1903368 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1736 kB
Writeback:           0 kB
Mapped:          35392 kB
Slab:            35148 kB
Committed_AS:   268560 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= 66460 MiB
End job on node45 at 2009-07-12 09:46:34