Trace number 1092897

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 v1.13+picosatUNSAT 1.27681 1.33038

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-9.xml
MD5SUM86dddb0f65e85dccb4a223f08a17bdb9
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 benchmark0.047992
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of constraints657
Maximum constraint arity2
Maximum domain size36
Number of constraints which are defined in extension0
Number of constraints which are defined in intension657
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.04	c 0	Sugar v1-13 + HOME/picosat
0.00/0.04	c 0	BEGIN Sat Jul  5 19:12:01 2008
0.00/0.04	c 0	PID 4300
0.00/0.04	c 0	HOST node86.alineos.net
0.00/0.04	c 0	CONVERTING HOME/instance-1092897-1215277921.xml TO HOME/temp.csp
0.00/0.04	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.XML2CSP 'HOME/instance-1092897-1215277921.xml' 'HOME/temp.csp'
0.03/0.37	c 0	1 domains, 36 variables, 2 predicates, 0 relations, 657 constraints
0.03/0.41	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.03/0.41	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.SugarMain -competition -encode 'HOME/temp.csp' 'HOME/temp.cnf' 'HOME/temp.map'
0.03/0.48	c 0	Parsing HOME/temp.csp
0.36/0.62	c 0	parsed 696 expressions
0.36/0.62	c 0	Heap : 1 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.36/0.62	c 0	Converting to clausal form CSP
0.36/0.66	c 0	converted 70 (10%) expressions
0.36/0.68	c 0	converted 140 (20%) expressions
0.36/0.70	c 0	converted 209 (30%) expressions
0.36/0.72	c 0	converted 279 (40%) expressions
0.36/0.77	c 1	converted 348 (50%) expressions
0.36/0.77	c 1	converted 418 (60%) expressions
0.36/0.78	c 1	converted 488 (70%) expressions
0.36/0.79	c 1	converted 557 (80%) expressions
0.36/0.82	c 1	converted 627 (90%) expressions
0.36/0.83	c 1	converted 696 (100%) expressions
0.36/0.83	c 1	CSP : 36 integers, 0 booleans, 684 clauses, largest domain size 36
0.36/0.83	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.36/0.83	c 1	Propagation in CSP
0.36/0.86	c 1	648 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.36/0.86	c 1	CSP : 36 integers, 0 booleans, 684 clauses, largest domain size 30
0.36/0.86	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.36/0.86	c 1	Simplifing CSP by introducing new Boolean variables
0.36/0.89	c 1	CSP : 36 integers, 1260 booleans, 1944 clauses, largest domain size 30
0.36/0.89	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.36/0.91	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.36/0.92	c 1	4 (10%) CSP integer variables are encoded (94 clauses, 893 bytes)
0.36/0.92	c 1	8 (20%) CSP integer variables are encoded (140 clauses, 1398 bytes)
0.36/0.92	c 1	11 (30%) CSP integer variables are encoded (197 clauses, 2025 bytes)
0.36/0.92	c 1	15 (40%) CSP integer variables are encoded (267 clauses, 2795 bytes)
0.36/0.93	c 1	18 (50%) CSP integer variables are encoded (288 clauses, 3026 bytes)
0.36/0.93	c 1	22 (60%) CSP integer variables are encoded (382 clauses, 4060 bytes)
0.36/0.93	c 1	26 (70%) CSP integer variables are encoded (428 clauses, 4566 bytes)
0.36/0.93	c 1	29 (80%) CSP integer variables are encoded (485 clauses, 5193 bytes)
0.36/0.93	c 1	33 (90%) CSP integer variables are encoded (555 clauses, 5963 bytes)
0.36/0.93	c 1	36 (100%) CSP integer variables are encoded (576 clauses, 6194 bytes)
0.36/0.95	c 1	195 (10%) CSP clauses are encoded (2770 clauses, 37159 bytes)
0.36/0.96	c 1	389 (20%) CSP clauses are encoded (4337 clauses, 59310 bytes)
0.36/0.97	c 1	584 (30%) CSP clauses are encoded (5306 clauses, 73474 bytes)
0.36/0.98	c 1	778 (40%) CSP clauses are encoded (5742 clauses, 79750 bytes)
0.36/0.98	c 1	972 (50%) CSP clauses are encoded (7220 clauses, 103269 bytes)
0.36/0.99	c 1	1167 (60%) CSP clauses are encoded (8904 clauses, 130475 bytes)
0.36/1.00	c 1	1361 (70%) CSP clauses are encoded (10018 clauses, 148020 bytes)
0.36/1.00	c 1	1556 (80%) CSP clauses are encoded (11394 clauses, 169716 bytes)
0.93/1.01	c 1	1750 (90%) CSP clauses are encoded (13007 clauses, 195373 bytes)
0.93/1.01	c 1	1944 (100%) CSP clauses are encoded (14357 clauses, 216973 bytes)
0.93/1.01	c 1	1944 CSP clauses encoded
0.93/1.01	c 1	Writing map file : HOME/temp.map
0.93/1.01	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.93/1.01	c 1	SAT : 1872 SAT variables, 14357 SAT clauses, 216973 bytes
0.93/1.01	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.93/1.03	c 1	SOLVING HOME/temp.cnf
0.93/1.03	c 1	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
0.97/1.22	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.97/1.22	c 1	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.SugarMain -competition -decode 'HOME/temp.out' 'HOME/temp.map'
0.97/1.29	c 1	Decoding HOME/temp.out
1.15/1.31	s UNSATISFIABLE
1.15/1.31	c 1	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
1.15/1.33	c 1	CPU 1.08 (0.03 0.01 1.05 0.16)
1.15/1.33	c 1	END Sat Jul  5 19:12:02 2008

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1092897-1215277921/watcher-1092897-1215277921 -o /tmp/evaluation-result-1092897-1215277921/solver-1092897-1215277921 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/sugar -c -vv -java=java -Xmx700M -jar=HOME/sugar-v1-13.jar -solver=HOME/picosat -tmp=HOME/temp HOME/instance-1092897-1215277921.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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.02 2.00 2.00 4/88 4300
/proc/meminfo: memFree=1573512/2055920 swapFree=4178892/4192956
[pid=4300] ppid=4298 vsize=12272 CPUtime=0
/proc/4300/stat : 4300 (sugar) R 4298 4300 3240 0 -1 4194304 359 0 0 0 0 0 0 0 18 0 1 0 683521051 12566528 327 996147200 4194304 4206940 548682068608 18446744073709551615 240162749438 0 0 4224 0 0 0 0 17 0 0 0
/proc/4300/statm: 3068 346 257 3 0 168 0

[startup+0.047835 s]
/proc/loadavg: 2.02 2.00 2.00 4/88 4300
/proc/meminfo: memFree=1573512/2055920 swapFree=4178892/4192956
[pid=4300] ppid=4298 vsize=13600 CPUtime=0.03
/proc/4300/stat : 4300 (sugar) S 4298 4300 3240 0 -1 4194304 900 127 0 0 3 0 0 0 18 0 1 0 683521051 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 240162746466 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/4300/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13600

[startup+0.101841 s]
/proc/loadavg: 2.02 2.00 2.00 4/88 4300
/proc/meminfo: memFree=1573512/2055920 swapFree=4178892/4192956
[pid=4300] ppid=4298 vsize=13600 CPUtime=0.03
/proc/4300/stat : 4300 (sugar) S 4298 4300 3240 0 -1 4194304 900 127 0 0 3 0 0 0 18 0 1 0 683521051 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 240162746466 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/4300/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13600

[startup+0.301862 s]
/proc/loadavg: 2.02 2.00 2.00 4/88 4300
/proc/meminfo: memFree=1573512/2055920 swapFree=4178892/4192956
[pid=4300] ppid=4298 vsize=13600 CPUtime=0.03
/proc/4300/stat : 4300 (sugar) S 4298 4300 3240 0 -1 4194304 900 127 0 0 3 0 0 0 18 0 1 0 683521051 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 240162746466 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/4300/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13600

[startup+0.70191 s]
/proc/loadavg: 2.02 2.00 2.00 4/88 4300
/proc/meminfo: memFree=1573512/2055920 swapFree=4178892/4192956
[pid=4300] ppid=4298 vsize=13600 CPUtime=0.36
/proc/4300/stat : 4300 (sugar) S 4298 4300 3240 0 -1 4194304 973 4545 0 1 3 1 28 4 15 0 1 0 683521051 13926400 797 996147200 4194304 4206940 548682068608 18446744073709551615 240162746466 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/4300/statm: 3400 797 370 3 0 500 0
Current children cumulated CPU time (s) 0.36
Current children cumulated vsize (KiB) 13600

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

[startup+1.10795 s]
/proc/loadavg: 2.02 2.00 2.00 3/99 4322
/proc/meminfo: memFree=1559224/2055920 swapFree=4178892/4192956
[pid=4300] ppid=4298 vsize=13600 CPUtime=0.97
/proc/4300/stat : 4300 (sugar) S 4298 4300 3240 0 -1 4194304 1022 11151 0 2 3 1 84 9 16 0 1 0 683521051 13926400 798 996147200 4194304 4206940 548682068608 18446744073709551615 240162746466 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/4300/statm: 3400 798 370 3 0 500 0
Current children cumulated CPU time (s) 0.97
Current children cumulated vsize (KiB) 13600

[startup+1.30198 s]
/proc/loadavg: 2.02 2.00 2.00 3/99 4322
/proc/meminfo: memFree=1559224/2055920 swapFree=4178892/4192956
[pid=4300] ppid=4298 vsize=13600 CPUtime=1.15
/proc/4300/stat : 4300 (sugar) S 4298 4300 3240 0 -1 4194304 1087 11662 0 2 3 1 97 14 16 0 1 0 683521051 13926400 798 996147200 4194304 4206940 548682068608 18446744073709551615 240162746466 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/4300/statm: 3400 798 370 3 0 500 0
Current children cumulated CPU time (s) 1.15
Current children cumulated vsize (KiB) 13600

Child status: 0
Real time (s): 1.33038
CPU time (s): 1.27681
CPU user time (s): 1.09283
CPU system time (s): 0.183972
CPU usage (%): 95.9729
Max. virtual memory (cumulated for all children) (KiB): 887424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.09283
system time used= 0.183972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16424
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= 1457
involuntary context switches= 1336

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node86 at 2008-07-05 19:12:01
IDJOB=1092897
IDBENCH=58667
IDSOLVER=345
FILE ID=node86/1092897-1215277921
PBS_JOBID= 7882238
Free space on /tmp= 66560 MiB

SOLVER NAME= Sugar v1.13+picosat
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-9.xml
COMMAND LINE= DIR/sugar -c -vv -java="java -Xmx700M" -jar="DIR/sugar-v1-13.jar" -solver="DIR/picosat" -tmp="TMPDIR/temp" BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1092897-1215277921/watcher-1092897-1215277921 -o /tmp/evaluation-result-1092897-1215277921/solver-1092897-1215277921 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/sugar -c -vv -java="java -Xmx700M" -jar="HOME/sugar-v1-13.jar" -solver="HOME/picosat" -tmp="HOME/temp" HOME/instance-1092897-1215277921.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 86dddb0f65e85dccb4a223f08a17bdb9
RANDOM SEED=361965670

node86.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		: 3000.220
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		: 3000.220
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:       1573992 kB
Buffers:         96268 kB
Cached:         275692 kB
SwapCached:       6392 kB
Active:         293536 kB
Inactive:       133656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1573992 kB
SwapTotal:     4192956 kB
SwapFree:      4178892 kB
Dirty:            1788 kB
Writeback:           0 kB
Mapped:          68720 kB
Slab:            39188 kB
Committed_AS:  1314076 kB
PageTables:       2480 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= 66556 MiB
End job on node86 at 2008-07-05 19:12:02