Trace number 196814

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, and are wall clock time (not CPU 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 0.40SAT 1.25 1.51301

General information on the benchmark

Namebqwh/bqwh-18-141/
bqwh-18-141-95_ext.xml
MD5SUMcb3424fa88e7271d044f74fee2e62933
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.085986
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables141
Number of constraints966
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension966
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/196814-1170093013/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/196814-1170093013/unknown.xml [Mon Jan 29 18:50:14 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/196814-1170093013/unknown.xml /tmp/evaluation/196814-1170093013/sugar16083.csp [Mon Jan 29 18:50:14 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/196814-1170093013/sugar-v0-40.jar -convert /tmp/evaluation/196814-1170093013/unknown.xml /tmp/evaluation/196814-1170093013/sugar16083.csp
0.17	c BEGIN convert /tmp/evaluation/196814-1170093013/unknown.xml
0.53	c END convert (0.358461 seconds)
0.54	c # CONVERT_XML  END : /tmp/evaluation/196814-1170093013/sugar16083.csp 73186 bytes (0 seconds) [Mon Jan 29 18:50:14 2007]
0.54	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.54	
0.54	c # GENERATE_SAT  BEGIN : /tmp/evaluation/196814-1170093013/sugar16083.bcnf [Mon Jan 29 18:50:14 2007]
0.54	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/196814-1170093013/sugar-v0-40.jar -bcnf -map /tmp/evaluation/196814-1170093013/sugar16083.map /tmp/evaluation/196814-1170093013/sugar16083.csp /tmp/evaluation/196814-1170093013/sugar16083.bcnf
0.66	c BEGIN parse /tmp/evaluation/196814-1170093013/sugar16083.csp
1.22	c END parse (0.557241 seconds)
1.22	c BEGIN simplify
1.23	c END simplify (0.00382 seconds)
1.23	c BEGIN encode /tmp/evaluation/196814-1170093013/sugar16083.bcnf
1.27	c END encode (0.047266 seconds)
1.30	c # GENERATE_SAT  END : 1558 variables 3573 clauses 49724 bytes (1 seconds) [Mon Jan 29 18:50:15 2007]
1.30	c # GENERATE_SAT  CPU : 0.01 = 0 + 0.01 + 0 + 0
1.30	
1.30	c # SOLVE_SAT  BEGIN : /tmp/evaluation/196814-1170093013/sugar16083.bcnf [Mon Jan 29 18:50:15 2007]
1.30	c # CMD : /tmp/evaluation/196814-1170093013/minisat /tmp/evaluation/196814-1170093013/sugar16083.bcnf /tmp/evaluation/196814-1170093013/sugar16083.out
1.31	c ==================================[MINISAT]===================================
1.31	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.31	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.31	c ==============================================================================
1.31	c |         0 |    3554     8839 |    1184       0        0     nan |  0.000 % |
1.31	c |       101 |    3557     8839 |    1302      98      820     8.4 |  1.027 % |
1.32	c |       252 |    3564     8824 |    1432     221     1764     8.0 |  1.156 % |
1.32	c ==============================================================================
1.32	c restarts              : 3
1.32	c conflicts             : 264            (24004 /sec)
1.32	c decisions             : 603            (54828 /sec)
1.32	c propagations          : 39703          (3610020 /sec)
1.32	c conflict literals     : 1874           (7.46 % deleted)
1.32	c Memory used           : 1.75 MB
1.32	c CPU time              : 0.010998 s
1.32	c 
1.32	c SATISFIABLE
1.32	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 18:50:15 2007]
1.32	c # SOLVE_SAT  CPU : 0.02 = 0.01 + 0 + 0.01 + 0
1.32	
1.32	c # RESULT : SATISFIABLE
1.32	
1.32	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 18:50:15 2007]
1.44	c BEGIN read SAT output /tmp/evaluation/196814-1170093013/sugar16083.out
1.46	c END read SAT output (0.021348 seconds)
1.46	c BEGIN write solution /tmp/evaluation/196814-1170093013/sugar16083.sol
1.49	c END write solution (0.02542 seconds)
1.50	s SATISFIABLE
1.51	v 15 17 6 8 16 7 3 0 17 11 8 4 5 3 12 14 5 16 1 3 9 15 2 4 14 17 5 13 6 16 15 4 4 8 2 16 10 14 5 9 3 7 12 17 8 9 10 6 3 12 16 0 11 4 17 7 10 4 6 9 5 16 15 11 6 1 0 2 15 8 10 5 13 0 3 11 9 4 12 6 13 2 5 3 4 15 11 2 4 15 0 5 8 1 15 4 5 8 7 13 9 17 5 4 15 13 12 3 6 16 15 17 13 3 1 11 16 5 11 3 8 15 14 10 16 5 17 13 0 15 12 8 3 17 15 4 7 14 13 11 10
1.51	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 18:50:15 2007]
1.51	c # OUTPUT_SOL  CPU : 0.16 = 0 + 0 + 0.14 + 0.02
1.51	
1.51	c # MAIN  END :  (1 seconds) [Mon Jan 29 18:50:15 2007]
1.51	c # MAIN  CPU : 0.19 = 0.01 + 0.01 + 0.15 + 0.02
1.51

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node56/watcher-196814-1170093013 -o ROOT/results/node56/solver-196814-1170093013 -C 1800 -M 900 /tmp/evaluation/196814-1170093013/solver /tmp/evaluation/196814-1170093013 /tmp/evaluation/196814-1170093013/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 2.10 2.00 1.93 5/74 16084
/proc/meminfo: memFree=1556000/2055920 swapFree=4110496/4192956
[pid=16083] ppid=16081 vsize=18540 CPUtime=0
/proc/16083/stat : 16083 (runsolver) R 16081 16083 15673 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 29257915 18984960 279 18446744073709551615 4194304 4267372 548682069040 18446744073709551615 253307186471 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16083/statm: 4635 279 244 17 0 2626 0

[startup+0.110488 s]
/proc/loadavg: 2.10 2.00 1.93 5/74 16084
/proc/meminfo: memFree=1556000/2055920 swapFree=4110496/4192956
[pid=16083] ppid=16081 vsize=13724 CPUtime=0.03
/proc/16083/stat : 16083 (sugar) S 16081 16083 15673 0 -1 4194304 1112 0 0 0 3 0 0 0 21 0 1 0 29257915 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 253316083810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/16083/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.518528 s]
/proc/loadavg: 2.10 2.00 1.93 5/74 16084
/proc/meminfo: memFree=1556000/2055920 swapFree=4110496/4192956
[pid=16083] ppid=16081 vsize=13724 CPUtime=0.03
/proc/16083/stat : 16083 (sugar) S 16081 16083 15673 0 -1 4194304 1121 0 0 0 3 0 0 0 15 0 1 0 29257915 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 253316083810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/16083/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+1.34161 s]
/proc/loadavg: 2.09 2.00 1.93 4/83 16100
/proc/meminfo: memFree=1534296/2055920 swapFree=4110496/4192956
[pid=16083] ppid=16081 vsize=13856 CPUtime=0.06
/proc/16083/stat : 16083 (sugar) S 16081 16083 15673 0 -1 4194304 1386 147 0 0 4 1 1 0 16 0 1 0 29257915 14188544 843 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 253316083810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/16083/statm: 3464 843 373 3 0 564 0
[pid=16085] ppid=16083 vsize=0 CPUtime=0.47
/proc/16085/stat : 16085 (java) Z 16083 16083 15673 0 -1 1036 4660 0 1 0 44 3 0 0 17 0 1 0 29257920 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/16085/statm: 0 0 0 0 0 0 0
[pid=16093] ppid=16083 vsize=0 CPUtime=0.72
/proc/16093/stat : 16093 (java) Z 16083 16083 15673 0 -1 1036 7276 0 1 0 67 5 0 0 17 0 1 0 29257970 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/16093/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 1.25
Current children cumulated vsize (KiB) 13856

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 16083 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=200969 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=35994
CPU time returned by wait4() is 0.236963
while last known CPU time is 1.25

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 1.51301
CPU time (s): 1.25
CPU user time (s): 1.16
CPU system time (s): 0.09
CPU usage (%): 82.6168
Max. virtual memory (cumulated for all children) (KiB): 821080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.200969
system time used= 0.035994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4615
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 222
involuntary context switches= 161

runsolver used 0.004999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node56 on Mon Jan 29 17:50:14 UTC 2007


IDJOB= 196814
IDBENCH= 3412
IDSOLVER= 86
FILE ID= node56/196814-1170093013

PBS_JOBID= 3689564

Free space on /tmp= 66559 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/bqwh/bqwh-18-141/bqwh-18-141-95_ext.xml
COMMAND LINE= /tmp/evaluation/196814-1170093013/solver /tmp/evaluation/196814-1170093013 /tmp/evaluation/196814-1170093013/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-196814-1170093013 -o ROOT/results/node56/solver-196814-1170093013 -C 1800 -M 900  /tmp/evaluation/196814-1170093013/solver /tmp/evaluation/196814-1170093013 /tmp/evaluation/196814-1170093013/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  cb3424fa88e7271d044f74fee2e62933

RANDOM SEED= 528839530

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.231
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		: 3000.231
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:       1556480 kB
Buffers:         41944 kB
Cached:         274492 kB
SwapCached:      77556 kB
Active:         162520 kB
Inactive:       269824 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1556480 kB
SwapTotal:     4192956 kB
SwapFree:      4110496 kB
Dirty:             840 kB
Writeback:           0 kB
Mapped:          48596 kB
Slab:            52440 kB
Committed_AS:   136272 kB
PageTables:       1924 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= 66559 MiB



End job on node56 on Mon Jan 29 17:50:15 UTC 2007